Mercurial > repos > blastem
annotate vdp.c @ 436:e341fd5aa996
Implement the scroll ring buffer properly without memcpy
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Fri, 12 Jul 2013 19:11:55 -0700 |
| parents | 2802318c14e1 |
| children | afbea09d7fb4 |
| rev | line source |
|---|---|
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1 #include "vdp.h" |
| 75 | 2 #include "blastem.h" |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
3 #include <stdlib.h> |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
4 #include <string.h> |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
5 #include "render.h" |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
6 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
7 #define NTSC_ACTIVE 225 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 #define PAL_ACTIVE 241 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
9 #define BUF_BIT_PRIORITY 0x40 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 #define MAP_BIT_PRIORITY 0x8000 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 #define MAP_BIT_H_FLIP 0x800 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
12 #define MAP_BIT_V_FLIP 0x1000 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
13 |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
14 #define SCROLL_BUFFER_SIZE 32 |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
15 #define SCROLL_BUFFER_MASK (SCROLL_BUFFER_SIZE-1) |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
16 #define SCROLL_BUFFER_DRAW (SCROLL_BUFFER_SIZE/2) |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
17 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
18 #define FIFO_SIZE 4 |
| 40 | 19 |
|
328
bf7ed23efa40
Fewer magic numbers in the VDP core for the win
Mike Pavone <pavone@retrodev.com>
parents:
327
diff
changeset
|
20 #define MCLKS_SLOT_H40 16 |
|
bf7ed23efa40
Fewer magic numbers in the VDP core for the win
Mike Pavone <pavone@retrodev.com>
parents:
327
diff
changeset
|
21 #define MCLKS_SLOT_H32 20 |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
22 #define VINT_CYCLE_H40 (21*MCLKS_SLOT_H40+332+9*MCLKS_SLOT_H40) //21 slots before HSYNC, 16 during, 10 after |
|
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
23 #define VINT_CYCLE_H32 ((33+20+7)*MCLKS_SLOT_H32) //33 slots before HSYNC, 20 during, 7 after TODO: confirm final number |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
24 #define HSYNC_SLOT_H40 21 |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
25 #define MCLK_WEIRD_END (HSYNC_SLOT_H40*MCLKS_SLOT_H40 + 332) |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
26 #define SLOT_WEIRD_END (HSYNC_SLOT_H40+17) |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
27 #define HSYNC_END_H32 (33 * MCLKS_SLOT_H32) |
|
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
28 #define HBLANK_CLEAR_H40 (MCLK_WEIRD_END+61*4) |
|
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
29 #define HBLANK_CLEAR_H32 (HSYNC_END_H32 + 46*5) |
|
328
bf7ed23efa40
Fewer magic numbers in the VDP core for the win
Mike Pavone <pavone@retrodev.com>
parents:
327
diff
changeset
|
30 |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
31 int32_t color_map[1 << 12]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
32 uint8_t levels[] = {0, 27, 49, 71, 87, 103, 119, 130, 146, 157, 174, 190, 206, 228, 255}; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
33 |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
34 uint8_t color_map_init_done; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
35 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
36 void init_vdp_context(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
37 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
38 memset(context, 0, sizeof(*context)); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
39 context->vdpmem = malloc(VRAM_SIZE); |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
40 memset(context->vdpmem, 0, VRAM_SIZE); |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
41 context->oddbuf = context->framebuf = malloc(FRAMEBUF_ENTRIES * (render_depth() / 8)); |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
42 memset(context->framebuf, 0, FRAMEBUF_ENTRIES * (render_depth() / 8)); |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
43 context->evenbuf = malloc(FRAMEBUF_ENTRIES * (render_depth() / 8)); |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
44 memset(context->evenbuf, 0, FRAMEBUF_ENTRIES * (render_depth() / 8)); |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
45 context->linebuf = malloc(LINEBUF_SIZE + SCROLL_BUFFER_SIZE*2); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
46 memset(context->linebuf, 0, LINEBUF_SIZE + SCROLL_BUFFER_SIZE*2); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
47 context->tmp_buf_a = context->linebuf + LINEBUF_SIZE; |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
48 context->tmp_buf_b = context->tmp_buf_a + SCROLL_BUFFER_SIZE; |
|
26
a7c2b92d8056
Fix management of context->sprite_draws so the sprite layer only draws when it should
Mike Pavone <pavone@retrodev.com>
parents:
25
diff
changeset
|
49 context->sprite_draws = MAX_DRAWS; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
50 context->fifo_cur = malloc(sizeof(fifo_entry) * FIFO_SIZE); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
51 context->fifo_end = context->fifo_cur + FIFO_SIZE; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
52 context->b32 = render_depth() == 32; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
53 if (!color_map_init_done) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
54 uint8_t b,g,r; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
55 for (uint16_t color = 0; color < (1 << 12); color++) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
56 if (color & FBUF_SHADOW) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
57 b = levels[(color >> 9) & 0x7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
58 g = levels[(color >> 5) & 0x7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
59 r = levels[(color >> 1) & 0x7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
60 } else if(color & FBUF_HILIGHT) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
61 b = levels[((color >> 9) & 0x7) + 7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
62 g = levels[((color >> 5) & 0x7) + 7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
63 r = levels[((color >> 1) & 0x7) + 7]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
64 } else { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
65 b = levels[(color >> 8) & 0xE]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
66 g = levels[(color >> 4) & 0xE]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
67 r = levels[color & 0xE]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
68 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
69 color_map[color] = render_map_color(r, g, b); |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
70 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
71 color_map_init_done = 1; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
72 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
73 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
74 |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
75 void render_sprite_cells(vdp_context * context) |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
76 { |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
77 if (context->cur_slot >= context->sprite_draws) { |
|
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
78 sprite_draw * d = context->sprite_draw_list + context->cur_slot; |
|
26
a7c2b92d8056
Fix management of context->sprite_draws so the sprite layer only draws when it should
Mike Pavone <pavone@retrodev.com>
parents:
25
diff
changeset
|
79 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
80 uint16_t dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
81 int16_t x; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
82 if (d->h_flip) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
83 x = d->x_pos + 7; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
84 dir = -1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
85 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
86 x = d->x_pos; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
87 dir = 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
88 } |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
89 //printf("Draw Slot %d of %d, Rendering sprite cell from %X to x: %d\n", context->cur_slot, context->sprite_draws, d->address, x); |
|
26
a7c2b92d8056
Fix management of context->sprite_draws so the sprite layer only draws when it should
Mike Pavone <pavone@retrodev.com>
parents:
25
diff
changeset
|
90 context->cur_slot--; |
|
143
e5487ef04619
Fix infinite loop bug in sprite rendering
Mike Pavone <pavone@retrodev.com>
parents:
142
diff
changeset
|
91 for (uint16_t address = d->address; address != ((d->address+4) & 0xFFFF); address++) { |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
92 if (x >= 0 && x < 320 && !(context->linebuf[x] & 0xF)) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
93 context->linebuf[x] = (context->vdpmem[address] >> 4) | d->pal_priority; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
94 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
95 x += dir; |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
96 if (x >= 0 && x < 320 && !(context->linebuf[x] & 0xF)) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
97 context->linebuf[x] = (context->vdpmem[address] & 0xF) | d->pal_priority; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
98 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
99 x += dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
100 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
101 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
102 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
103 |
|
322
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
104 void vdp_print_sprite_table(vdp_context * context) |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
105 { |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
106 uint16_t sat_address = (context->regs[REG_SAT] & 0x7F) << 9; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
107 uint16_t current_index = 0; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
108 uint8_t count = 0; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
109 do { |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
110 uint16_t address = current_index * 8 + sat_address; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
111 uint8_t height = ((context->vdpmem[address+2] & 0x3) + 1) * 8; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
112 uint8_t width = (((context->vdpmem[address+2] >> 2) & 0x3) + 1) * 8; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
113 int16_t y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) & 0x1FF; |
|
323
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
114 int16_t x = ((context->vdpmem[address+ 6] & 0x3) << 8 | context->vdpmem[address + 7]) & 0x1FF; |
|
322
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
115 uint16_t link = context->vdpmem[address+3] & 0x7F; |
|
323
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
116 uint8_t pal = context->vdpmem[address + 4] >> 5 & 0x3; |
|
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
117 uint8_t pri = context->vdpmem[address + 4] >> 7; |
|
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
118 uint16_t pattern = ((context->vdpmem[address + 4] << 8 | context->vdpmem[address + 5]) & 0x7FF) << 5; |
|
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
119 //printf("Sprite %d: X=%d(%d), Y=%d(%d), Width=%u, Height=%u, Link=%u, Pal=%u, Pri=%u, Pat=%X\n", current_index, x, x-128, y, y-128, width, height, link, pal, pri, pattern); |
|
322
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
120 current_index = link; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
121 count++; |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
122 } while (current_index != 0 && count < 80); |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
123 } |
|
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
318
diff
changeset
|
124 |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
125 void vdp_print_reg_explain(vdp_context * context) |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
126 { |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
127 char * hscroll[] = {"full", "7-line", "cell", "line"}; |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
128 printf("**Mode Group**\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
129 "00: %.2X | H-ints %s, Pal Select %d, HVC latch %s, Display gen %s\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
130 "01: %.2X | Display %s, V-ints %s, Height: %d, Mode %d\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
131 "0B: %.2X | E-ints %s, V-Scroll: %s, H-Scroll: %s\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
132 "0C: %.2X | Width: %d, Shadow/Highlight: %s\n", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
133 context->regs[REG_MODE_1], context->regs[REG_MODE_1] & BIT_HINT_EN ? "enabled" : "disabled", context->regs[REG_MODE_1] & BIT_PAL_SEL != 0, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
134 context->regs[REG_MODE_1] & BIT_HVC_LATCH ? "enabled" : "disabled", context->regs[REG_MODE_1] & BIT_DISP_DIS ? "disabled" : "enabled", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
135 context->regs[REG_MODE_2], context->regs[REG_MODE_2] & BIT_DISP_EN ? "enabled" : "disabled", context->regs[REG_MODE_2] & BIT_VINT_EN ? "enabled" : "disabled", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
136 context->regs[REG_MODE_2] & BIT_PAL ? 30 : 28, context->regs[REG_MODE_2] & BIT_MODE_5 ? 5 : 4, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
137 context->regs[REG_MODE_3], context->regs[REG_MODE_3] & BIT_EINT_EN ? "enabled" : "disabled", context->regs[REG_MODE_3] & BIT_VSCROLL ? "2 cell" : "full", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
138 hscroll[context->regs[REG_MODE_3] & 0x3], |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
139 context->regs[REG_MODE_4], context->regs[REG_MODE_4] & BIT_H40 ? 40 : 32, context->regs[REG_MODE_4] & BIT_HILIGHT ? "enabled" : "disabled"); |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
140 printf("\n**Table Group**\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
141 "02: %.2X | Scroll A Name Table: $%.4X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
142 "03: %.2X | Window Name Table: $%.4X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
143 "04: %.2X | Scroll B Name Table: $%.4X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
144 "05: %.2X | Sprite Attribute Table: $%.4X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
145 "0D: %.2X | HScroll Data Table: $%.4X\n", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
146 context->regs[REG_SCROLL_A], (context->regs[REG_SCROLL_A] & 0x38) << 10, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
147 context->regs[REG_WINDOW], (context->regs[REG_WINDOW] & (context->regs[REG_MODE_4] & BIT_H40 ? 0x3C : 0x3E)) << 10, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
148 context->regs[REG_SCROLL_B], (context->regs[REG_SCROLL_B] & 0x7) << 13, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
149 context->regs[REG_SAT], (context->regs[REG_SAT] & (context->regs[REG_MODE_4] & BIT_H40 ? 0x3E : 0x3F)) << 9, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
150 context->regs[REG_HSCROLL], (context->regs[REG_HSCROLL] & 0x1F) << 10); |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
151 char * sizes[] = {"32", "64", "invalid", "128"}; |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
152 printf("\n**Misc Group**\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
153 "07: %.2X | Backdrop Color: $%X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
154 "0A: %.2X | H-Int Counter: %u\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
155 "0F: %.2X | Auto-increment: $%X\n" |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
156 "10: %.2X | Scroll A/B Size: %sx%s\n", |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
157 context->regs[REG_BG_COLOR], context->regs[REG_BG_COLOR] & 0x3F, |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
158 context->regs[REG_HINT], context->regs[REG_HINT], |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
159 context->regs[REG_AUTOINC], context->regs[REG_AUTOINC], |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
160 context->regs[REG_SCROLL], sizes[context->regs[REG_SCROLL] & 0x3], sizes[context->regs[REG_SCROLL] >> 4 & 0x3]); |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
161 |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
162 //TODO: Window Group, DMA Group |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
163 } |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
164 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
165 void scan_sprite_table(uint32_t line, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
166 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
167 if (context->sprite_index && context->slot_counter) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
168 line += 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
169 line &= 0xFF; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
170 uint16_t ymask, ymin; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
171 uint8_t height_mult; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
172 if (context->double_res) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
173 line *= 2; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
174 if (context->framebuf != context->oddbuf) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
175 line++; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
176 } |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
177 ymask = 0x3FF; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
178 ymin = 256; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
179 height_mult = 16; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
180 } else { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
181 ymask = 0x1FF; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
182 ymin = 128; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
183 height_mult = 8; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
184 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
185 context->sprite_index &= 0x7F; |
|
38
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
186 if (context->latched_mode & BIT_H40) { |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
187 if (context->sprite_index >= MAX_SPRITES_FRAME) { |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
188 context->sprite_index = 0; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
189 return; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
190 } |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
191 } else if(context->sprite_index >= MAX_SPRITES_FRAME_H32) { |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
192 context->sprite_index = 0; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
193 return; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
194 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
195 //TODO: Read from SAT cache rather than from VRAM |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
196 uint16_t sat_address = (context->regs[REG_SAT] & 0x7F) << 9; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
197 uint16_t address = context->sprite_index * 8 + sat_address; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
198 line += ymin; |
|
415
8c60c8c09a0f
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Mike Pavone <pavone@retrodev.com>
parents:
414
diff
changeset
|
199 uint16_t y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) & ymask; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
200 uint8_t height = ((context->vdpmem[address+2] & 0x3) + 1) * height_mult; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
201 //printf("Sprite %d | y: %d, height: %d\n", context->sprite_index, y, height); |
|
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
202 if (y <= line && line < (y + height)) { |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
203 //printf("Sprite %d at y: %d with height %d is on line %d\n", context->sprite_index, y, height, line); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
204 context->sprite_info_list[--(context->slot_counter)].size = context->vdpmem[address+2]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
205 context->sprite_info_list[context->slot_counter].index = context->sprite_index; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
206 context->sprite_info_list[context->slot_counter].y = y-ymin; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
207 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
208 context->sprite_index = context->vdpmem[address+3] & 0x7F; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
209 if (context->sprite_index && context->slot_counter) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
210 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
211 address = context->sprite_index * 8 + sat_address; |
|
415
8c60c8c09a0f
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Mike Pavone <pavone@retrodev.com>
parents:
414
diff
changeset
|
212 y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) & ymask; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
213 height = ((context->vdpmem[address+2] & 0x3) + 1) * height_mult; |
|
323
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
214 //printf("Sprite %d | y: %d, height: %d\n", context->sprite_index, y, height); |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
215 if (y <= line && line < (y + height)) { |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
216 //printf("Sprite %d at y: %d with height %d is on line %d\n", context->sprite_index, y, height, line); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
217 context->sprite_info_list[--(context->slot_counter)].size = context->vdpmem[address+2]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
218 context->sprite_info_list[context->slot_counter].index = context->sprite_index; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
219 context->sprite_info_list[context->slot_counter].y = y-ymin; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
220 } |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
221 context->sprite_index = context->vdpmem[address+3] & 0x7F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
222 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
223 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
224 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
225 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
226 void read_sprite_x(uint32_t line, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
227 { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
228 if (context->cur_slot >= context->slot_counter) { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
229 if (context->sprite_draws) { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
230 line += 1; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
231 line &= 0xFF; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
232 //in tiles |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
233 uint8_t width = ((context->sprite_info_list[context->cur_slot].size >> 2) & 0x3) + 1; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
234 //in pixels |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
235 uint8_t height = ((context->sprite_info_list[context->cur_slot].size & 0x3) + 1) * 8; |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
236 if (context->double_res) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
237 line *= 2; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
238 if (context->framebuf != context->oddbuf) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
239 line++; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
240 } |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
241 height *= 2; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
242 } |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
243 uint16_t att_addr = ((context->regs[REG_SAT] & 0x7F) << 9) + context->sprite_info_list[context->cur_slot].index * 8 + 4; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
244 uint16_t tileinfo = (context->vdpmem[att_addr] << 8) | context->vdpmem[att_addr+1]; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
245 uint8_t pal_priority = (tileinfo >> 9) & 0x70; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
246 uint8_t row; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
247 if (tileinfo & MAP_BIT_V_FLIP) { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
248 row = (context->sprite_info_list[context->cur_slot].y + height - 1) - line; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
249 } else { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
250 row = line-context->sprite_info_list[context->cur_slot].y; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
251 } |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
252 uint16_t address; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
253 if (context->double_res) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
254 address = ((tileinfo & 0x3FF) << 6) + row * 4; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
255 } else { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
256 address = ((tileinfo & 0x7FF) << 5) + row * 4; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
257 } |
|
323
8c01b4154480
Properly mask sprite X and Y coordinates
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
258 int16_t x = ((context->vdpmem[att_addr+ 2] & 0x3) << 8 | context->vdpmem[att_addr + 3]) & 0x1FF; |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
259 if (x) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
260 context->flags |= FLAG_CAN_MASK; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
261 } else if(context->flags & (FLAG_CAN_MASK | FLAG_DOT_OFLOW)) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
262 context->flags |= FLAG_MASKED; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
263 } |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
264 |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
265 context->flags &= ~FLAG_DOT_OFLOW; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
266 int16_t i; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
267 if (context->flags & FLAG_MASKED) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
268 for (i=0; i < width && context->sprite_draws; i++) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
269 --context->sprite_draws; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
270 context->sprite_draw_list[context->sprite_draws].x_pos = -128; |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
271 } |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
272 } else { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
273 x -= 128; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
274 int16_t base_x = x; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
275 int16_t dir; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
276 if (tileinfo & MAP_BIT_H_FLIP) { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
277 x += (width-1) * 8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
278 dir = -8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
279 } else { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
280 dir = 8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
281 } |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
282 //printf("Sprite %d | x: %d, y: %d, width: %d, height: %d, pal_priority: %X, row: %d, tile addr: %X\n", context->sprite_info_list[context->cur_slot].index, x, context->sprite_info_list[context->cur_slot].y, width, height, pal_priority, row, address); |
|
35
233c7737c152
Small fix to overflow flag
Mike Pavone <pavone@retrodev.com>
parents:
34
diff
changeset
|
283 for (i=0; i < width && context->sprite_draws; i++, x += dir) { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
284 --context->sprite_draws; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
285 context->sprite_draw_list[context->sprite_draws].address = address + i * height * 4; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
286 context->sprite_draw_list[context->sprite_draws].x_pos = x; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
287 context->sprite_draw_list[context->sprite_draws].pal_priority = pal_priority; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
288 context->sprite_draw_list[context->sprite_draws].h_flip = (tileinfo & MAP_BIT_H_FLIP) ? 1 : 0; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
289 } |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
290 } |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
291 if (i < width) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
292 context->flags |= FLAG_DOT_OFLOW; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
293 } |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
294 context->cur_slot--; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
295 } else { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
296 context->flags |= FLAG_DOT_OFLOW; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
297 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
298 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
299 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
300 |
|
427
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
301 void write_cram(vdp_context * context, uint16_t address, uint16_t value) |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
302 { |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
303 uint16_t addr = (address/2) & (CRAM_SIZE-1); |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
304 context->cram[addr] = value; |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
305 context->colors[addr] = color_map[value & 0xEEE]; |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
306 context->colors[addr + CRAM_SIZE] = color_map[(value & 0xEEE) | FBUF_SHADOW]; |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
307 context->colors[addr + CRAM_SIZE*2] = color_map[(value & 0xEEE) | FBUF_HILIGHT]; |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
308 } |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
309 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
310 #define VRAM_READ 0 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
311 #define VRAM_WRITE 1 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
312 #define CRAM_READ 8 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
313 #define CRAM_WRITE 3 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
314 #define VSRAM_READ 4 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
315 #define VSRAM_WRITE 5 |
| 75 | 316 #define DMA_START 0x20 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
317 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
318 void external_slot(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
319 { |
| 75 | 320 //TODO: Figure out what happens if CD bit 4 is not set in DMA copy mode |
| 321 //TODO: Figure out what happens when CD:0-3 is not set to a write mode in DMA operations | |
| 322 //TODO: Figure out what happens if DMA gets disabled part way through a DMA fill or DMA copy | |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
323 if(context->flags & FLAG_DMA_RUN) { |
| 75 | 324 uint16_t dma_len; |
| 325 switch(context->regs[REG_DMASRC_H] & 0xC0) | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
326 { |
| 75 | 327 //68K -> VDP |
| 328 case 0: | |
| 329 case 0x40: | |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
330 switch(context->dma_cd & 0xF) |
| 75 | 331 { |
| 332 case VRAM_WRITE: | |
| 333 if (context->flags & FLAG_DMA_PROG) { | |
| 334 context->vdpmem[context->address ^ 1] = context->dma_val; | |
| 335 context->flags &= ~FLAG_DMA_PROG; | |
| 336 } else { | |
| 337 context->dma_val = read_dma_value((context->regs[REG_DMASRC_H] << 16) | (context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]); | |
| 338 context->vdpmem[context->address] = context->dma_val >> 8; | |
| 339 context->flags |= FLAG_DMA_PROG; | |
| 340 } | |
| 341 break; | |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
342 case CRAM_WRITE: { |
|
427
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
343 write_cram(context, context->address, read_dma_value((context->regs[REG_DMASRC_H] << 16) | (context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L])); |
|
151
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
344 //printf("CRAM DMA | %X set to %X from %X at %d\n", (context->address/2) & (CRAM_SIZE-1), context->cram[(context->address/2) & (CRAM_SIZE-1)], (context->regs[REG_DMASRC_H] << 17) | (context->regs[REG_DMASRC_M] << 9) | (context->regs[REG_DMASRC_L] << 1), context->cycles); |
| 75 | 345 break; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
346 } |
| 75 | 347 case VSRAM_WRITE: |
| 348 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 349 context->vsram[(context->address/2) & 63] = read_dma_value((context->regs[REG_DMASRC_H] << 16) | (context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]); | |
| 350 } | |
| 351 break; | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
352 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
353 break; |
| 75 | 354 //Fill |
| 355 case 0x80: | |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
356 switch(context->dma_cd & 0xF) |
| 75 | 357 { |
| 358 case VRAM_WRITE: | |
| 359 //Charles MacDonald's VDP doc says that the low byte gets written first | |
| 142 | 360 context->vdpmem[context->address] = context->dma_val; |
| 361 context->dma_val = (context->dma_val << 8) | ((context->dma_val >> 8) & 0xFF); | |
| 75 | 362 break; |
|
427
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
363 case CRAM_WRITE: |
|
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
364 write_cram(context, context->address, context->dma_val); |
|
337
f8c6f8684cd6
Fix background color regsiter number
Mike Pavone <pavone@retrodev.com>
parents:
334
diff
changeset
|
365 //printf("CRAM DMA Fill | %X set to %X at %d\n", (context->address/2) & (CRAM_SIZE-1), context->cram[(context->address/2) & (CRAM_SIZE-1)], context->cycles); |
| 75 | 366 break; |
| 367 case VSRAM_WRITE: | |
| 368 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 369 context->vsram[(context->address/2) & 63] = context->dma_val; | |
| 370 } | |
| 371 break; | |
| 372 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
373 break; |
| 75 | 374 //Copy |
| 375 case 0xC0: | |
| 376 if (context->flags & FLAG_DMA_PROG) { | |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
377 switch(context->dma_cd & 0xF) |
| 75 | 378 { |
| 379 case VRAM_WRITE: | |
| 380 context->vdpmem[context->address] = context->dma_val; | |
| 381 break; | |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
382 case CRAM_WRITE: { |
|
427
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
383 write_cram(context, context->address, context->dma_val); |
|
337
f8c6f8684cd6
Fix background color regsiter number
Mike Pavone <pavone@retrodev.com>
parents:
334
diff
changeset
|
384 //printf("CRAM DMA Copy | %X set to %X from %X at %d\n", (context->address/2) & (CRAM_SIZE-1), context->cram[(context->address/2) & (CRAM_SIZE-1)], context->regs[REG_DMASRC_L] & (CRAM_SIZE-1), context->cycles); |
| 75 | 385 break; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
386 } |
| 75 | 387 case VSRAM_WRITE: |
| 388 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 389 context->vsram[(context->address/2) & 63] = context->dma_val; | |
| 390 } | |
| 391 break; | |
| 392 } | |
| 393 context->flags &= ~FLAG_DMA_PROG; | |
| 394 } else { | |
| 395 //I assume, that DMA copy copies from the same RAM as the destination | |
| 396 //but it's possible I'm mistaken | |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
397 switch(context->dma_cd & 0xF) |
| 75 | 398 { |
| 399 case VRAM_WRITE: | |
| 400 context->dma_val = context->vdpmem[(context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]]; | |
| 401 break; | |
| 402 case CRAM_WRITE: | |
| 403 context->dma_val = context->cram[context->regs[REG_DMASRC_L] & (CRAM_SIZE-1)]; | |
| 404 break; | |
| 405 case VSRAM_WRITE: | |
| 406 if ((context->regs[REG_DMASRC_L] & 63) < VSRAM_SIZE) { | |
| 407 context->dma_val = context->vsram[context->regs[REG_DMASRC_L] & 63]; | |
| 408 } else { | |
| 409 context->dma_val = 0; | |
| 410 } | |
| 411 break; | |
| 412 } | |
| 413 context->flags |= FLAG_DMA_PROG; | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
414 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
415 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
416 } |
| 75 | 417 if (!(context->flags & FLAG_DMA_PROG)) { |
| 418 context->address += context->regs[REG_AUTOINC]; | |
| 419 context->regs[REG_DMASRC_L] += 1; | |
| 135 | 420 if (!context->regs[REG_DMASRC_L]) { |
| 421 context->regs[REG_DMASRC_M] += 1; | |
| 422 } | |
| 75 | 423 dma_len = ((context->regs[REG_DMALEN_H] << 8) | context->regs[REG_DMALEN_L]) - 1; |
| 424 context->regs[REG_DMALEN_H] = dma_len >> 8; | |
| 425 context->regs[REG_DMALEN_L] = dma_len; | |
| 426 if (!dma_len) { | |
| 427 context->flags &= ~FLAG_DMA_RUN; | |
| 428 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
429 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
430 } else { |
| 75 | 431 fifo_entry * start = (context->fifo_end - FIFO_SIZE); |
| 432 if (context->fifo_cur != start && start->cycle <= context->cycles) { | |
| 433 if ((context->regs[REG_MODE_2] & BIT_DMA_ENABLE) && (context->cd & DMA_START)) { | |
| 434 context->flags |= FLAG_DMA_RUN; | |
| 435 context->dma_val = start->value; | |
| 138 | 436 context->address = start->address; //undo auto-increment |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
437 context->dma_cd = context->cd; |
| 75 | 438 } else { |
| 138 | 439 switch (start->cd & 0xF) |
| 75 | 440 { |
| 441 case VRAM_WRITE: | |
| 442 if (start->partial) { | |
| 443 //printf("VRAM Write: %X to %X\n", start->value, context->address ^ 1); | |
| 138 | 444 context->vdpmem[start->address ^ 1] = start->value; |
| 75 | 445 } else { |
| 446 //printf("VRAM Write High: %X to %X\n", start->value >> 8, context->address); | |
| 138 | 447 context->vdpmem[start->address] = start->value >> 8; |
| 75 | 448 start->partial = 1; |
| 449 //skip auto-increment and removal of entry from fifo | |
| 450 return; | |
| 451 } | |
| 452 break; | |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
453 case CRAM_WRITE: { |
|
151
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
454 //printf("CRAM Write | %X to %X\n", start->value, (start->address/2) & (CRAM_SIZE-1)); |
|
427
2802318c14e1
Refactor duplicated CRAM writing code and fix a bug in the process
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
455 write_cram(context, start->address, start->value); |
| 75 | 456 break; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
457 } |
| 75 | 458 case VSRAM_WRITE: |
| 138 | 459 if (((start->address/2) & 63) < VSRAM_SIZE) { |
| 75 | 460 //printf("VSRAM Write: %X to %X\n", start->value, context->address); |
| 138 | 461 context->vsram[(start->address/2) & 63] = start->value; |
| 75 | 462 } |
| 463 break; | |
| 464 } | |
| 138 | 465 //context->address += context->regs[REG_AUTOINC]; |
| 75 | 466 } |
| 467 fifo_entry * cur = start+1; | |
| 468 if (cur < context->fifo_cur) { | |
| 469 memmove(start, cur, sizeof(fifo_entry) * (context->fifo_cur - cur)); | |
| 470 } | |
| 471 context->fifo_cur -= 1; | |
| 472 } else { | |
| 473 context->flags |= FLAG_UNUSED_SLOT; | |
| 474 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
475 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
476 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
477 |
| 40 | 478 #define WINDOW_RIGHT 0x80 |
| 479 #define WINDOW_DOWN 0x80 | |
| 480 | |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
481 void read_map_scroll(uint16_t column, uint16_t vsram_off, uint32_t line, uint16_t address, uint16_t hscroll_val, vdp_context * context) |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
482 { |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
483 uint16_t window_line_shift, v_offset_mask, vscroll_shift; |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
484 if (context->double_res) { |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
485 line *= 2; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
486 if (context->framebuf != context->oddbuf) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
487 line++; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
488 } |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
489 window_line_shift = 4; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
490 v_offset_mask = 0xF; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
491 vscroll_shift = 4; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
492 } else { |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
493 window_line_shift = 3; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
494 v_offset_mask = 0x7; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
495 vscroll_shift = 3; |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
496 } |
| 40 | 497 if (!vsram_off) { |
| 498 uint16_t left_col, right_col; | |
| 499 if (context->regs[REG_WINDOW_H] & WINDOW_RIGHT) { | |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
500 left_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
501 right_col = 42; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
502 } else { |
| 40 | 503 left_col = 0; |
| 504 right_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2; | |
| 505 if (right_col) { | |
| 506 right_col += 2; | |
| 507 } | |
| 508 } | |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
509 uint16_t top_line, bottom_line; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
510 if (context->regs[REG_WINDOW_V] & WINDOW_DOWN) { |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
511 top_line = (context->regs[REG_WINDOW_V] & 0x1F) << window_line_shift; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
512 bottom_line = context->double_res ? 481 : 241; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
513 } else { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
514 top_line = 0; |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
515 bottom_line = (context->regs[REG_WINDOW_V] & 0x1F) << window_line_shift; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
516 } |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
517 if ((column >= left_col && column < right_col) || (line >= top_line && line < bottom_line)) { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
518 uint16_t address = context->regs[REG_WINDOW] << 10; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
519 uint16_t line_offset, offset, mask; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
520 if (context->latched_mode & BIT_H40) { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
521 address &= 0xF000; |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
522 line_offset = (((line) >> vscroll_shift) * 64 * 2) & 0xFFF; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
523 mask = 0x7F; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
524 |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
525 } else { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
526 address &= 0xF800; |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
527 line_offset = (((line) >> vscroll_shift) * 32 * 2) & 0xFFF; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
528 mask = 0x3F; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
529 } |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
530 if (context->double_res) { |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
531 mask <<= 1; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
532 mask |= 1; |
|
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
533 } |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
534 offset = address + line_offset + (((column - 2) * 2) & mask); |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
535 context->col_1 = (context->vdpmem[offset] << 8) | context->vdpmem[offset+1]; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
536 //printf("Window | top: %d, bot: %d, left: %d, right: %d, base: %X, line: %X offset: %X, tile: %X, reg: %X\n", top_line, bottom_line, left_col, right_col, address, line_offset, offset, ((context->col_1 & 0x3FF) << 5), context->regs[REG_WINDOW]); |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
537 offset = address + line_offset + (((column - 1) * 2) & mask); |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
538 context->col_2 = (context->vdpmem[offset] << 8) | context->vdpmem[offset+1]; |
|
417
acdd6c5240fe
Fix window layer in double res interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
415
diff
changeset
|
539 context->v_offset = (line) & v_offset_mask; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
540 context->flags |= FLAG_WINDOW; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
541 return; |
| 40 | 542 } |
| 543 context->flags &= ~FLAG_WINDOW; | |
| 544 } | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
545 uint16_t vscroll; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
546 switch(context->regs[REG_SCROLL] & 0x30) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
547 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
548 case 0: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
549 vscroll = 0xFF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
550 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
551 case 0x10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
552 vscroll = 0x1FF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
553 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
554 case 0x20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
555 //TODO: Verify this behavior |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
556 vscroll = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
557 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
558 case 0x30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
559 vscroll = 0x3FF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
560 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
561 } |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
562 if (context->double_res) { |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
563 vscroll <<= 1; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
564 vscroll |= 1; |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
565 } |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
566 vscroll &= (context->vsram[(context->regs[REG_MODE_3] & BIT_VSCROLL ? column : 0) + vsram_off] + line); |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
567 context->v_offset = vscroll & v_offset_mask; |
|
26
a7c2b92d8056
Fix management of context->sprite_draws so the sprite layer only draws when it should
Mike Pavone <pavone@retrodev.com>
parents:
25
diff
changeset
|
568 //printf("%s | line %d, vsram: %d, vscroll: %d, v_offset: %d\n",(vsram_off ? "B" : "A"), line, context->vsram[context->regs[REG_MODE_3] & 0x4 ? column : 0], vscroll, context->v_offset); |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
569 vscroll >>= vscroll_shift; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
570 uint16_t hscroll_mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
571 uint16_t v_mul; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
572 switch(context->regs[REG_SCROLL] & 0x3) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
573 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
574 case 0: |
|
108
1a551a85cb06
Fix horizontal mask values for scroll plane map address calculation
Mike Pavone <pavone@retrodev.com>
parents:
87
diff
changeset
|
575 hscroll_mask = 0x1F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
576 v_mul = 64; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
577 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
578 case 0x1: |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
579 hscroll_mask = 0x3F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
580 v_mul = 128; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
581 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
582 case 0x2: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
583 //TODO: Verify this behavior |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
584 hscroll_mask = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
585 v_mul = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
586 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
587 case 0x3: |
|
108
1a551a85cb06
Fix horizontal mask values for scroll plane map address calculation
Mike Pavone <pavone@retrodev.com>
parents:
87
diff
changeset
|
588 hscroll_mask = 0x7F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
589 v_mul = 256; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
590 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
591 } |
| 28 | 592 uint16_t hscroll, offset; |
| 593 for (int i = 0; i < 2; i++) { | |
|
39
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
594 hscroll = (column - 2 + i - ((hscroll_val/8) & 0xFFFE)) & hscroll_mask; |
|
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
595 offset = address + ((vscroll * v_mul + hscroll*2) & 0x1FFF); |
|
3c69319269ef
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
596 //printf("%s | line: %d, col: %d, x: %d, hs_mask %X, scr reg: %X, tbl addr: %X\n", (vsram_off ? "B" : "A"), line, (column-2+i), hscroll, hscroll_mask, context->regs[REG_SCROLL], offset); |
| 28 | 597 uint16_t col_val = (context->vdpmem[offset] << 8) | context->vdpmem[offset+1]; |
| 598 if (i) { | |
| 599 context->col_2 = col_val; | |
| 600 } else { | |
| 601 context->col_1 = col_val; | |
| 602 } | |
| 603 } | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
604 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
605 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
606 void read_map_scroll_a(uint16_t column, uint32_t line, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
607 { |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
608 read_map_scroll(column, 0, line, (context->regs[REG_SCROLL_A] & 0x38) << 10, context->hscroll_a, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
609 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
610 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
611 void read_map_scroll_b(uint16_t column, uint32_t line, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
612 { |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
613 read_map_scroll(column, 1, line, (context->regs[REG_SCROLL_B] & 0x7) << 13, context->hscroll_b, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
614 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
615 |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
616 void render_map(uint16_t col, uint8_t * tmp_buf, uint8_t offset, vdp_context * context) |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
617 { |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
618 uint16_t address; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
619 uint8_t shift, add; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
620 if (context->double_res) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
621 address = ((col & 0x3FF) << 6); |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
622 shift = 1; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
623 add = context->framebuf != context->oddbuf ? 1 : 0; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
624 } else { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
625 address = ((col & 0x7FF) << 5); |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
626 shift = 0; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
627 add = 0; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
628 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
629 if (col & MAP_BIT_V_FLIP) { |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
630 address += 28 - 4 * context->v_offset/*((context->v_offset << shift) + add)*/; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
631 } else { |
|
414
51ee0f117365
Fix vscroll calculation in double resultion interlace mode
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
632 address += 4 * context->v_offset/*((context->v_offset << shift) + add)*/; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
633 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
634 uint16_t pal_priority = (col >> 9) & 0x70; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
635 int32_t dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
636 if (col & MAP_BIT_H_FLIP) { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
637 offset += 7; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
638 offset &= SCROLL_BUFFER_MASK; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
639 dir = -1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
640 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
641 dir = 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
642 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
643 for (uint32_t i=0; i < 4; i++, address++) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
644 { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
645 tmp_buf[offset] = pal_priority | (context->vdpmem[address] >> 4); |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
646 offset += dir; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
647 offset &= SCROLL_BUFFER_MASK; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
648 tmp_buf[offset] = pal_priority | (context->vdpmem[address] & 0xF); |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
649 offset += dir; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
650 offset &= SCROLL_BUFFER_MASK; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
651 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
652 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
653 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
654 void render_map_1(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
655 { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
656 render_map(context->col_1, context->tmp_buf_a, context->buf_a_off, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
657 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
658 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
659 void render_map_2(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
660 { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
661 render_map(context->col_2, context->tmp_buf_a, context->buf_a_off+8, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
662 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
663 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
664 void render_map_3(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
665 { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
666 render_map(context->col_1, context->tmp_buf_b, context->buf_b_off, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
667 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
668 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
669 void render_map_output(uint32_t line, int32_t col, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
670 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
671 if (line >= 240) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
672 return; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
673 } |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
674 render_map(context->col_2, context->tmp_buf_b, context->buf_b_off+8, context); |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
675 uint16_t *dst; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
676 uint32_t *dst32; |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
677 uint8_t *sprite_buf, *plane_a, *plane_b; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
678 int plane_a_off, plane_b_off; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
679 if (col) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
680 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
681 col-=2; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
682 if (context->b32) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
683 dst32 = context->framebuf; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
684 dst32 += line * 320 + col * 8; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
685 } else { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
686 dst = context->framebuf; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
687 dst += line * 320 + col * 8; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
688 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
689 sprite_buf = context->linebuf + col * 8; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
690 uint16_t a_src; |
| 40 | 691 if (context->flags & FLAG_WINDOW) { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
692 plane_a_off = context->buf_a_off; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
693 //a_src = FBUF_SRC_W; |
| 40 | 694 } else { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
695 plane_a_off = context->buf_a_off - (context->hscroll_a & 0xF); |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
696 //a_src = FBUF_SRC_A; |
| 40 | 697 } |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
698 plane_b_off = context->buf_b_off - (context->hscroll_b & 0xF); |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
699 uint16_t src; |
| 30 | 700 //printf("A | tmp_buf offset: %d\n", 8 - (context->hscroll_a & 0x7)); |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
701 |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
702 if (context->regs[REG_MODE_4] & BIT_HILIGHT) { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
703 for (int i = 0; i < 16; ++plane_a_off, ++plane_b_off, ++sprite_buf, ++i) { |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
704 uint8_t pixel; |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
705 plane_a = context->tmp_buf_a + (plane_a_off & SCROLL_BUFFER_MASK); |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
706 plane_b = context->tmp_buf_b + (plane_b_off & SCROLL_BUFFER_MASK); |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
707 src = 0; |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
708 uint8_t sprite_color = *sprite_buf & 0x3F; |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
709 if (sprite_color == 0x3E || sprite_color == 0x3F) { |
|
232
54873acb982e
Shadow and higlight operators were switched
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
710 if (sprite_color == 0x3F) { |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
711 src = CRAM_SIZE;//FBUF_SHADOW; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
712 } else { |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
713 src = CRAM_SIZE*2;//FBUF_HILIGHT; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
714 } |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
715 if (*plane_a & BUF_BIT_PRIORITY && *plane_a & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
716 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
717 //src |= a_src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
718 } else if (*plane_b & BUF_BIT_PRIORITY && *plane_b & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
719 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
720 //src |= FBUF_SRC_B; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
721 } else if (*plane_a & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
722 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
723 //src |= a_src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
724 } else if (*plane_b & 0xF){ |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
725 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
726 //src |= FBUF_SRC_B; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
727 } else { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
728 pixel = context->regs[REG_BG_COLOR] & 0x3F; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
729 //src |= FBUF_SRC_BG; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
730 } |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
731 } else { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
732 if (*sprite_buf & BUF_BIT_PRIORITY && *sprite_buf & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
733 pixel = *sprite_buf; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
734 //src = FBUF_SRC_S; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
735 } else if (*plane_a & BUF_BIT_PRIORITY && *plane_a & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
736 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
737 //src = a_src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
738 } else if (*plane_b & BUF_BIT_PRIORITY && *plane_b & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
739 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
740 //src = FBUF_SRC_B; |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
741 } else { |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
742 if (!(*plane_a & BUF_BIT_PRIORITY || *plane_a & BUF_BIT_PRIORITY)) { |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
743 src = CRAM_SIZE;//FBUF_SHADOW; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
744 } |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
745 if (*sprite_buf & 0xF) { |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
746 pixel = *sprite_buf; |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
747 if (*sprite_buf & 0xF == 0xE) { |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
748 src = 0;//FBUF_SRC_S; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
749 } /*else { |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
750 src |= FBUF_SRC_S; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
751 }*/ |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
752 } else if (*plane_a & 0xF) { |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
753 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
754 //src |= a_src; |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
755 } else if (*plane_b & 0xF){ |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
756 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
757 //src |= FBUF_SRC_B; |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
758 } else { |
|
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
759 pixel = context->regs[REG_BG_COLOR] & 0x3F; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
760 //src |= FBUF_SRC_BG; |
|
233
9d10669f2579
Less broken implementation of shadow/highlight
Mike Pavone <pavone@retrodev.com>
parents:
232
diff
changeset
|
761 } |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
762 } |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
763 } |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
764 pixel &= 0x3F; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
765 pixel += src; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
766 if (context->b32) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
767 *(dst32++) = context->colors[pixel]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
768 } else { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
769 *(dst++) = context->colors[pixel]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
770 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
771 //*dst = (context->cram[pixel & 0x3F] & 0xEEE) | ((pixel & BUF_BIT_PRIORITY) ? FBUF_BIT_PRIORITY : 0) | src; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
772 } |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
773 } else { |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
774 for (int i = 0; i < 16; ++plane_a_off, ++plane_b_off, ++sprite_buf, ++i) { |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
775 uint8_t pixel; |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
776 plane_a = context->tmp_buf_a + (plane_a_off & SCROLL_BUFFER_MASK); |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
777 plane_b = context->tmp_buf_b + (plane_b_off & SCROLL_BUFFER_MASK); |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
778 if (*sprite_buf & BUF_BIT_PRIORITY && *sprite_buf & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
779 pixel = *sprite_buf; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
780 //src = FBUF_SRC_S; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
781 } else if (*plane_a & BUF_BIT_PRIORITY && *plane_a & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
782 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
783 //src = a_src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
784 } else if (*plane_b & BUF_BIT_PRIORITY && *plane_b & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
785 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
786 //src = FBUF_SRC_B; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
787 } else if (*sprite_buf & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
788 pixel = *sprite_buf; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
789 //src = FBUF_SRC_S; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
790 } else if (*plane_a & 0xF) { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
791 pixel = *plane_a; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
792 //src = a_src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
793 } else if (*plane_b & 0xF){ |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
794 pixel = *plane_b; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
795 //src = FBUF_SRC_B; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
796 } else { |
|
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
797 pixel = context->regs[REG_BG_COLOR] & 0x3F; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
798 //src = FBUF_SRC_BG; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
799 } |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
800 if (context->b32) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
801 *(dst32++) = context->colors[pixel & 0x3F]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
802 } else { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
803 *(dst++) = context->colors[pixel & 0x3F]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
804 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
805 //*dst = (context->cram[pixel & 0x3F] & 0xEEE) | ((pixel & BUF_BIT_PRIORITY) ? FBUF_BIT_PRIORITY : 0) | src; |
|
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
191
diff
changeset
|
806 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
807 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
808 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
809 //dst = context->framebuf + line * 320; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
810 //sprite_buf = context->linebuf + col * 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
811 //plane_a = context->tmp_buf_a + 16 - (context->hscroll_a & 0x7); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
812 //plane_b = context->tmp_buf_b + 16 - (context->hscroll_b & 0x7); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
813 //end = dst + 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
814 } |
|
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
815 context->buf_a_off = (context->buf_a_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; |
|
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
427
diff
changeset
|
816 context->buf_b_off = (context->buf_b_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
817 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
818 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
819 #define COLUMN_RENDER_BLOCK(column, startcyc) \ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
820 case startcyc:\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
821 read_map_scroll_a(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
822 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
823 case (startcyc+1):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
824 external_slot(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
825 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
826 case (startcyc+2):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
827 render_map_1(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
828 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
829 case (startcyc+3):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
830 render_map_2(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
831 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
832 case (startcyc+4):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
833 read_map_scroll_b(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
834 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
835 case (startcyc+5):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
836 read_sprite_x(line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
837 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
838 case (startcyc+6):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
839 render_map_3(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
840 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
841 case (startcyc+7):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
842 render_map_output(line, column, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
843 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
844 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
845 #define COLUMN_RENDER_BLOCK_REFRESH(column, startcyc) \ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
846 case startcyc:\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
847 read_map_scroll_a(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
848 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
849 case (startcyc+1):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
850 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
851 case (startcyc+2):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
852 render_map_1(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
853 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
854 case (startcyc+3):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
855 render_map_2(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
856 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
857 case (startcyc+4):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
858 read_map_scroll_b(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
859 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
860 case (startcyc+5):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
861 read_sprite_x(line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
862 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
863 case (startcyc+6):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
864 render_map_3(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
865 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
866 case (startcyc+7):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
867 render_map_output(line, column, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
868 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
869 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
870 void vdp_h40(uint32_t line, uint32_t linecyc, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
871 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
872 uint16_t address; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
873 uint32_t mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
874 switch(linecyc) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
875 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
876 //sprite render to line buffer starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
877 case 0: |
|
26
a7c2b92d8056
Fix management of context->sprite_draws so the sprite layer only draws when it should
Mike Pavone <pavone@retrodev.com>
parents:
25
diff
changeset
|
878 context->cur_slot = MAX_DRAWS-1; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
879 memset(context->linebuf, 0, LINEBUF_SIZE); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
880 case 1: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
881 case 2: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
882 case 3: |
|
329
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
883 if (line == 0xFF) { |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
884 external_slot(context); |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
885 } else { |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
886 render_sprite_cells(context); |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
887 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
888 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
889 //sprite attribute table scan starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
890 case 4: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
891 render_sprite_cells( context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
892 context->sprite_index = 0x80; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
893 context->slot_counter = MAX_SPRITES_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
894 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
895 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
896 case 5: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
897 case 6: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
898 case 7: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
899 case 8: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
900 case 9: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
901 case 10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
902 case 11: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
903 case 12: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
904 case 13: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
905 case 14: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
906 case 15: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
907 case 16: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
908 case 17: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
909 case 18: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
910 case 19: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
911 case 20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
912 //!HSYNC asserted |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
913 case 21: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
914 case 22: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
915 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
916 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
917 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
918 case 23: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
919 external_slot(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
920 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
921 case 24: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
922 case 25: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
923 case 26: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
924 case 27: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
925 case 28: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
926 case 29: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
927 case 30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
928 case 31: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
929 case 32: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
930 case 33: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
931 case 34: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
932 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
933 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
934 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
935 case 35: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
936 address = (context->regs[REG_HSCROLL] & 0x3F) << 10; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
937 mask = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
938 if (context->regs[REG_MODE_3] & 0x2) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
939 mask |= 0xF8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
940 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
941 if (context->regs[REG_MODE_3] & 0x1) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
942 mask |= 0x7; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
943 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
944 line &= mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
945 address += line * 4; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
946 context->hscroll_a = context->vdpmem[address] << 8 | context->vdpmem[address+1]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
947 context->hscroll_b = context->vdpmem[address+2] << 8 | context->vdpmem[address+3]; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
948 //printf("%d: HScroll A: %d, HScroll B: %d\n", line, context->hscroll_a, context->hscroll_b); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
949 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
950 case 36: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
951 //!HSYNC high |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
952 case 37: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
953 case 38: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
954 case 39: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
955 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
956 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
957 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
958 case 40: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
959 read_map_scroll_a(0, line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
960 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
961 case 41: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
962 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
963 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
964 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
965 case 42: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
966 render_map_1(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
967 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
968 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
969 case 43: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
970 render_map_2(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
971 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
972 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
973 case 44: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
974 read_map_scroll_b(0, line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
975 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
976 case 45: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
977 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
978 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
979 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
980 case 46: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
981 render_map_3(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
982 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
983 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
984 case 47: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
985 render_map_output(line, 0, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
986 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
987 //reverse context slot counter so it counts the number of sprite slots |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
988 //filled rather than the number of available slots |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
989 //context->slot_counter = MAX_SPRITES_LINE - context->slot_counter; |
|
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
990 context->cur_slot = MAX_SPRITES_LINE-1; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
991 context->sprite_draws = MAX_DRAWS; |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
992 context->flags &= (~FLAG_CAN_MASK & ~FLAG_MASKED); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
993 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
994 COLUMN_RENDER_BLOCK(2, 48) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
995 COLUMN_RENDER_BLOCK(4, 56) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
996 COLUMN_RENDER_BLOCK(6, 64) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
997 COLUMN_RENDER_BLOCK_REFRESH(8, 72) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
998 COLUMN_RENDER_BLOCK(10, 80) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
999 COLUMN_RENDER_BLOCK(12, 88) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1000 COLUMN_RENDER_BLOCK(14, 96) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1001 COLUMN_RENDER_BLOCK_REFRESH(16, 104) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1002 COLUMN_RENDER_BLOCK(18, 112) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1003 COLUMN_RENDER_BLOCK(20, 120) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1004 COLUMN_RENDER_BLOCK(22, 128) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1005 COLUMN_RENDER_BLOCK_REFRESH(24, 136) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1006 COLUMN_RENDER_BLOCK(26, 144) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1007 COLUMN_RENDER_BLOCK(28, 152) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1008 COLUMN_RENDER_BLOCK(30, 160) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1009 COLUMN_RENDER_BLOCK_REFRESH(32, 168) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1010 COLUMN_RENDER_BLOCK(34, 176) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1011 COLUMN_RENDER_BLOCK(36, 184) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1012 COLUMN_RENDER_BLOCK(38, 192) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1013 COLUMN_RENDER_BLOCK_REFRESH(40, 200) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1014 case 208: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1015 case 209: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1016 external_slot(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1017 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1018 default: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1019 //leftovers from HSYNC clock change nonsense |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1020 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1021 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1022 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1023 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1024 void vdp_h32(uint32_t line, uint32_t linecyc, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1025 { |
| 37 | 1026 uint16_t address; |
| 1027 uint32_t mask; | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1028 switch(linecyc) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1029 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1030 //sprite render to line buffer starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1031 case 0: |
| 37 | 1032 context->cur_slot = MAX_DRAWS_H32-1; |
| 1033 memset(context->linebuf, 0, LINEBUF_SIZE); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1034 case 1: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1035 case 2: |
| 37 | 1036 case 3: |
|
329
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1037 if (line == 0xFF) { |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1038 external_slot(context); |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1039 } else { |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1040 render_sprite_cells(context); |
|
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1041 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1042 break; |
| 37 | 1043 //sprite attribute table scan starts |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1044 case 4: |
| 37 | 1045 render_sprite_cells( context); |
| 1046 context->sprite_index = 0x80; | |
| 1047 context->slot_counter = MAX_SPRITES_LINE_H32; | |
| 1048 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1049 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1050 case 5: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1051 case 6: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1052 case 7: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1053 case 8: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1054 case 9: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1055 case 10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1056 case 11: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1057 case 12: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1058 case 13: |
| 37 | 1059 render_sprite_cells(context); |
| 1060 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1061 case 14: |
| 37 | 1062 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1063 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1064 case 15: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1065 case 16: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1066 case 17: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1067 case 18: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1068 case 19: |
| 37 | 1069 //HSYNC start |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1070 case 20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1071 case 21: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1072 case 22: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1073 case 23: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1074 case 24: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1075 case 25: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1076 case 26: |
| 37 | 1077 render_sprite_cells(context); |
| 1078 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1079 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1080 case 27: |
| 37 | 1081 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1082 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1083 case 28: |
| 37 | 1084 address = (context->regs[REG_HSCROLL] & 0x3F) << 10; |
| 1085 mask = 0; | |
| 1086 if (context->regs[REG_MODE_3] & 0x2) { | |
| 1087 mask |= 0xF8; | |
| 1088 } | |
| 1089 if (context->regs[REG_MODE_3] & 0x1) { | |
| 1090 mask |= 0x7; | |
| 1091 } | |
| 1092 line &= mask; | |
| 1093 address += line * 4; | |
| 1094 context->hscroll_a = context->vdpmem[address] << 8 | context->vdpmem[address+1]; | |
| 1095 context->hscroll_b = context->vdpmem[address+2] << 8 | context->vdpmem[address+3]; | |
| 1096 //printf("%d: HScroll A: %d, HScroll B: %d\n", line, context->hscroll_a, context->hscroll_b); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1097 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1098 case 29: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1099 case 30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1100 case 31: |
| 37 | 1101 case 32: |
| 1102 render_sprite_cells(context); | |
| 1103 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1104 break; |
| 37 | 1105 //!HSYNC high |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1106 case 33: |
| 37 | 1107 read_map_scroll_a(0, line, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1108 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1109 case 34: |
| 37 | 1110 render_sprite_cells(context); |
| 1111 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1112 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1113 case 35: |
| 37 | 1114 render_map_1(context); |
| 1115 scan_sprite_table(line, context);//Just a guess | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1116 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1117 case 36: |
| 37 | 1118 render_map_2(context); |
| 1119 scan_sprite_table(line, context);//Just a guess | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1120 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1121 case 37: |
| 37 | 1122 read_map_scroll_b(0, line, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1123 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1124 case 38: |
| 37 | 1125 render_sprite_cells(context); |
| 1126 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1127 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1128 case 39: |
| 37 | 1129 render_map_3(context); |
| 1130 scan_sprite_table(line, context);//Just a guess | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1131 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1132 case 40: |
| 37 | 1133 render_map_output(line, 0, context); |
| 1134 scan_sprite_table(line, context);//Just a guess | |
| 1135 //reverse context slot counter so it counts the number of sprite slots | |
| 1136 //filled rather than the number of available slots | |
| 1137 //context->slot_counter = MAX_SPRITES_LINE - context->slot_counter; | |
| 1138 context->cur_slot = MAX_SPRITES_LINE_H32-1; | |
| 1139 context->sprite_draws = MAX_DRAWS_H32; | |
| 1140 context->flags &= (~FLAG_CAN_MASK & ~FLAG_MASKED); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1141 break; |
| 37 | 1142 COLUMN_RENDER_BLOCK(2, 41) |
| 1143 COLUMN_RENDER_BLOCK(4, 49) | |
| 1144 COLUMN_RENDER_BLOCK(6, 57) | |
| 1145 COLUMN_RENDER_BLOCK_REFRESH(8, 65) | |
| 1146 COLUMN_RENDER_BLOCK(10, 73) | |
| 1147 COLUMN_RENDER_BLOCK(12, 81) | |
| 1148 COLUMN_RENDER_BLOCK(14, 89) | |
| 1149 COLUMN_RENDER_BLOCK_REFRESH(16, 97) | |
| 1150 COLUMN_RENDER_BLOCK(18, 105) | |
| 1151 COLUMN_RENDER_BLOCK(20, 113) | |
| 1152 COLUMN_RENDER_BLOCK(22, 121) | |
| 1153 COLUMN_RENDER_BLOCK_REFRESH(24, 129) | |
| 1154 COLUMN_RENDER_BLOCK(26, 137) | |
| 1155 COLUMN_RENDER_BLOCK(28, 145) | |
| 1156 COLUMN_RENDER_BLOCK(30, 153) | |
| 1157 COLUMN_RENDER_BLOCK_REFRESH(32, 161) | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1158 case 169: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1159 case 170: |
| 37 | 1160 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1161 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1162 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1163 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1164 void latch_mode(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1165 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1166 context->latched_mode = (context->regs[REG_MODE_4] & 0x81) | (context->regs[REG_MODE_2] & BIT_PAL); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1167 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1168 |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1169 int is_refresh(vdp_context * context, uint32_t slot) |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1170 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1171 if (context->latched_mode & BIT_H40) { |
|
189
806c3b7a6f2a
Fix background rendering when display is off and improve refresh cycle emulation so that direct color DMA demos work
Mike Pavone <pavone@retrodev.com>
parents:
180
diff
changeset
|
1172 //TODO: Figure out the exact behavior that reduces DMA slots for direct color DMA demos |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1173 return (slot == 37 || slot == 69 || slot == 102 || slot == 133 || slot == 165 || slot == 197 || slot >= 210 || (slot < 6 && (context->flags & FLAG_DMA_RUN) && ((context->dma_cd & 0xF) == CRAM_WRITE))); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1174 } else { |
|
189
806c3b7a6f2a
Fix background rendering when display is off and improve refresh cycle emulation so that direct color DMA demos work
Mike Pavone <pavone@retrodev.com>
parents:
180
diff
changeset
|
1175 //TODO: Figure out which slots are refresh when display is off in 32-cell mode |
|
191
1b4d856b067a
Fixes for direct color dma stuff
Mike Pavone <pavone@retrodev.com>
parents:
190
diff
changeset
|
1176 //These numbers are guesses based on H40 numbers |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1177 return (slot == 24 || slot == 56 || slot == 88 || slot == 120 || slot == 152 || (slot < 5 && (context->flags & FLAG_DMA_RUN) && ((context->dma_cd & 0xF) == CRAM_WRITE))); |
|
189
806c3b7a6f2a
Fix background rendering when display is off and improve refresh cycle emulation so that direct color DMA demos work
Mike Pavone <pavone@retrodev.com>
parents:
180
diff
changeset
|
1178 //The numbers below are the refresh slots during active display |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1179 //return (slot == 66 || slot == 98 || slot == 130 || slot == 162); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1180 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1181 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1182 |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1183 void check_render_bg(vdp_context * context, int32_t line, uint32_t slot) |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1184 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1185 if (line > 0) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1186 line -= 1; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1187 int starti = -1; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1188 if (context->latched_mode & BIT_H40) { |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1189 if (slot >= 50 && slot < 210) { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1190 uint32_t x = (slot-50)*2; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1191 starti = line * 320 + x; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1192 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1193 } else { |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1194 if (slot >= 43 && slot < 171) { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1195 uint32_t x = (slot-43)*2; |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1196 starti = line * 320 + x; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1197 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1198 } |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1199 if (starti >= 0) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1200 if (context->b32) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1201 uint32_t color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1202 uint32_t * start = context->framebuf; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1203 start += starti; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1204 for (int i = 0; i < 2; i++) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1205 *(start++) = color; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1206 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1207 } else { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1208 uint16_t color = context->colors[context->regs[REG_BG_COLOR] & 0x3F]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1209 uint16_t * start = context->framebuf; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1210 start += starti; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1211 for (int i = 0; i < 2; i++) { |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1212 *(start++) = color; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1213 } |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1214 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1215 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1216 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1217 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1218 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1219 void vdp_run_context(vdp_context * context, uint32_t target_cycles) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1220 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1221 while(context->cycles < target_cycles) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1222 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1223 uint32_t line = context->cycles / MCLKS_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1224 uint32_t active_lines = context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE; |
|
334
4c91470e1a53
Only latch video mode at the very beginning of the frame to avoid problems with the cycle count getting out of sync with what I expect
Mike Pavone <pavone@retrodev.com>
parents:
333
diff
changeset
|
1225 if (!context->cycles) { |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1226 latch_mode(context); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1227 } |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1228 uint32_t linecyc = context->cycles % MCLKS_LINE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1229 if (linecyc == 0) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1230 if (line <= 1 || line >= active_lines) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1231 context->hint_counter = context->regs[REG_HINT]; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1232 } else if (context->hint_counter) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1233 context->hint_counter--; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1234 } else { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1235 context->flags2 |= FLAG2_HINT_PENDING; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1236 context->hint_counter = context->regs[REG_HINT]; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1237 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1238 } else if(line == active_lines) { |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
1239 uint32_t intcyc = context->latched_mode & BIT_H40 ? VINT_CYCLE_H40 : VINT_CYCLE_H32; |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1240 if (linecyc == intcyc) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1241 context->flags2 |= FLAG2_VINT_PENDING; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1242 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1243 } |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1244 uint32_t inccycles, slot; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1245 if (context->latched_mode & BIT_H40){ |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1246 if (linecyc < MCLKS_SLOT_H40*HSYNC_SLOT_H40) { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1247 slot = linecyc/MCLKS_SLOT_H40; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1248 inccycles = MCLKS_SLOT_H40; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1249 } else if(linecyc < MCLK_WEIRD_END) { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1250 switch(linecyc-(MCLKS_SLOT_H40*HSYNC_SLOT_H40)) |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1251 { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1252 case 0: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1253 inccycles = 19; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1254 slot = 0; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1255 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1256 case 19: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1257 slot = 1; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1258 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1259 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1260 case 39: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1261 slot = 2; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1262 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1263 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1264 case 59: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1265 slot = 3; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1266 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1267 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1268 case 79: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1269 slot = 4; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1270 inccycles = 18; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1271 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1272 case 97: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1273 slot = 5; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1274 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1275 break; |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1276 case 117: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1277 slot = 6; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1278 inccycles = 20; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1279 break; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1280 case 137: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1281 slot = 7; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1282 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1283 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1284 case 157: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1285 slot = 8; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1286 inccycles = 18; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1287 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1288 case 175: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1289 slot = 9; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1290 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1291 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1292 case 195: |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1293 slot = 10; |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1294 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1295 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1296 case 215: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1297 slot = 11; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1298 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1299 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1300 case 235: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1301 slot = 12; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1302 inccycles = 18; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1303 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1304 case 253: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1305 slot = 13; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1306 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1307 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1308 case 273: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1309 slot = 14; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1310 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1311 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1312 case 293: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1313 slot = 15; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1314 inccycles = 20; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1315 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1316 case 313: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1317 slot = 16; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1318 inccycles = 19; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1319 break; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1320 default: |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1321 fprintf(stderr, "cycles after weirdness %d\n", linecyc-(MCLKS_SLOT_H40*HSYNC_SLOT_H40)); |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1322 exit(1); |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1323 } |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1324 slot += HSYNC_SLOT_H40; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1325 } else { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1326 slot = (linecyc-MCLK_WEIRD_END)/MCLKS_SLOT_H40 + SLOT_WEIRD_END; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1327 inccycles = MCLKS_SLOT_H40; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1328 } |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1329 } else { |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1330 inccycles = MCLKS_SLOT_H32; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1331 slot = linecyc/MCLKS_SLOT_H32; |
|
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1332 } |
|
329
fd5f6577db9b
Implement first line/last line weirdness in VDP
Mike Pavone <pavone@retrodev.com>
parents:
328
diff
changeset
|
1333 if ((line < active_lines || (line == active_lines && linecyc < (context->latched_mode & BIT_H40 ? 64 : 80))) && context->regs[REG_MODE_2] & DISPLAY_ENABLE) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1334 //first sort-of active line is treated as 255 internally |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1335 //it's used for gathering sprite info for line |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1336 line = (line - 1) & 0xFF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1337 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1338 //Convert to slot number |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1339 if (context->latched_mode & BIT_H40){ |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1340 vdp_h40(line, slot, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1341 } else { |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1342 vdp_h32(line, slot, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1343 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1344 } else { |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1345 if (!is_refresh(context, slot)) { |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1346 external_slot(context); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1347 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1348 if (line < active_lines) { |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1349 check_render_bg(context, line, slot); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1350 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1351 } |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1352 context->cycles += inccycles; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1353 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1354 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1355 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1356 uint32_t vdp_run_to_vblank(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1357 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1358 uint32_t target_cycles = ((context->latched_mode & BIT_PAL) ? PAL_ACTIVE : NTSC_ACTIVE) * MCLKS_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1359 vdp_run_context(context, target_cycles); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1360 return context->cycles; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1361 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1362 |
| 75 | 1363 void vdp_run_dma_done(vdp_context * context, uint32_t target_cycles) |
| 1364 { | |
| 1365 for(;;) { | |
| 1366 uint32_t dmalen = (context->regs[REG_DMALEN_H] << 8) | context->regs[REG_DMALEN_L]; | |
| 1367 if (!dmalen) { | |
| 1368 dmalen = 0x10000; | |
| 1369 } | |
| 1370 uint32_t min_dma_complete = dmalen * (context->latched_mode & BIT_H40 ? 16 : 20); | |
| 1371 if ((context->regs[REG_DMASRC_H] & 0xC0) == 0xC0 || (context->cd & 0xF) == VRAM_WRITE) { | |
| 1372 //DMA copies take twice as long to complete since they require a read and a write | |
| 1373 //DMA Fills and transfers to VRAM also take twice as long as it requires 2 writes for a single word | |
| 1374 min_dma_complete *= 2; | |
| 1375 } | |
| 1376 min_dma_complete += context->cycles; | |
| 1377 if (target_cycles < min_dma_complete) { | |
| 1378 vdp_run_context(context, target_cycles); | |
| 1379 return; | |
| 1380 } else { | |
| 1381 vdp_run_context(context, min_dma_complete); | |
| 1382 if (!(context->flags & FLAG_DMA_RUN)) { | |
| 1383 return; | |
| 1384 } | |
| 1385 } | |
| 1386 } | |
| 1387 } | |
| 1388 | |
| 1389 int vdp_control_port_write(vdp_context * context, uint16_t value) | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1390 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
1391 //printf("control port write: %X\n", value); |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1392 if (context->flags & FLAG_DMA_RUN) { |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1393 return -1; |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1394 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1395 if (context->flags & FLAG_PENDING) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1396 context->address = (context->address & 0x3FFF) | (value << 14); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1397 context->cd = (context->cd & 0x3) | ((value >> 2) & 0x3C); |
| 75 | 1398 context->flags &= ~FLAG_PENDING; |
|
87
60b5c9e2f4e0
vertical interrupts now work
Mike Pavone <pavone@retrodev.com>
parents:
84
diff
changeset
|
1399 //printf("New Address: %X, New CD: %X\n", context->address, context->cd); |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1400 if (context->cd & 0x20 && (context->regs[REG_MODE_2] & BIT_DMA_ENABLE)) { |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1401 // |
| 75 | 1402 if((context->regs[REG_DMASRC_H] & 0xC0) != 0x80) { |
| 1403 //DMA copy or 68K -> VDP, transfer starts immediately | |
| 1404 context->flags |= FLAG_DMA_RUN; | |
|
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
109
diff
changeset
|
1405 context->dma_cd = context->cd; |
| 75 | 1406 if (!(context->regs[REG_DMASRC_H] & 0x80)) { |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1407 //printf("DMA Address: %X, New CD: %X, Source: %X, Length: %X\n", context->address, context->cd, (context->regs[REG_DMASRC_H] << 17) | (context->regs[REG_DMASRC_M] << 9) | (context->regs[REG_DMASRC_L] << 1), context->regs[REG_DMALEN_H] << 8 | context->regs[REG_DMALEN_L]); |
| 75 | 1408 return 1; |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1409 } else { |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1410 //printf("DMA Copy Address: %X, New CD: %X, Source: %X\n", context->address, context->cd, (context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]); |
| 75 | 1411 } |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1412 } else { |
|
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1413 //printf("DMA Fill Address: %X, New CD: %X\n", context->address, context->cd); |
| 75 | 1414 } |
|
63
a6dd5b7a971b
Add FPS counter to console output
Mike Pavone <pavone@retrodev.com>
parents:
58
diff
changeset
|
1415 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1416 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1417 if ((value & 0xC000) == 0x8000) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1418 //Register write |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1419 uint8_t reg = (value >> 8) & 0x1F; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1420 if (reg < VDP_REGS) { |
|
87
60b5c9e2f4e0
vertical interrupts now work
Mike Pavone <pavone@retrodev.com>
parents:
84
diff
changeset
|
1421 //printf("register %d set to %X\n", reg, value & 0xFF); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1422 context->regs[reg] = value; |
|
151
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
1423 if (reg == REG_MODE_2) { |
|
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
1424 //printf("Display is now %s\n", (context->regs[REG_MODE_2] & DISPLAY_ENABLE) ? "enabled" : "disabled"); |
|
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
1425 } |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1426 if (reg == REG_MODE_4) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1427 context->double_res = (value & (BIT_INTERLACE | BIT_DOUBLE_RES)) == (BIT_INTERLACE | BIT_DOUBLE_RES); |
|
415
8c60c8c09a0f
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Mike Pavone <pavone@retrodev.com>
parents:
414
diff
changeset
|
1428 if (!context->double_res) { |
|
8c60c8c09a0f
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Mike Pavone <pavone@retrodev.com>
parents:
414
diff
changeset
|
1429 context->framebuf = context->oddbuf; |
|
8c60c8c09a0f
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Mike Pavone <pavone@retrodev.com>
parents:
414
diff
changeset
|
1430 } |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1431 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1432 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1433 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1434 context->flags |= FLAG_PENDING; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1435 context->address = (context->address &0xC000) | (value & 0x3FFF); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1436 context->cd = (context->cd &0x3C) | (value >> 14); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1437 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1438 } |
| 75 | 1439 return 0; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1440 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1441 |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1442 int vdp_data_port_write(vdp_context * context, uint16_t value) |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1443 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
1444 //printf("data port write: %X\n", value); |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1445 if (context->flags & FLAG_DMA_RUN) { |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1446 return -1; |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1447 } |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1448 if (!(context->cd & 1)) { |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1449 //ignore writes when cd is configured for read |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1450 return 0; |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1451 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1452 context->flags &= ~FLAG_PENDING; |
|
109
004dd46e0a97
COmment out fifo full debug printf
Mike Pavone <pavone@retrodev.com>
parents:
108
diff
changeset
|
1453 /*if (context->fifo_cur == context->fifo_end) { |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1454 printf("FIFO full, waiting for space before next write at cycle %X\n", context->cycles); |
|
109
004dd46e0a97
COmment out fifo full debug printf
Mike Pavone <pavone@retrodev.com>
parents:
108
diff
changeset
|
1455 }*/ |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1456 while (context->fifo_cur == context->fifo_end) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1457 vdp_run_context(context, context->cycles + ((context->latched_mode & BIT_H40) ? 16 : 20)); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1458 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1459 context->fifo_cur->cycle = context->cycles; |
| 138 | 1460 context->fifo_cur->address = context->address; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1461 context->fifo_cur->value = value; |
| 138 | 1462 context->fifo_cur->cd = context->cd; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1463 context->fifo_cur->partial = 0; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1464 context->fifo_cur++; |
| 138 | 1465 context->address += context->regs[REG_AUTOINC]; |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1466 return 0; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1467 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1468 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1469 uint16_t vdp_control_port_read(vdp_context * context) |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1470 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1471 context->flags &= ~FLAG_PENDING; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1472 uint16_t value = 0x3400; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1473 if (context->fifo_cur == (context->fifo_end - FIFO_SIZE)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1474 value |= 0x200; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1475 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1476 if (context->fifo_cur == context->fifo_end) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1477 value |= 0x100; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1478 } |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1479 if (context->flags2 & FLAG2_VINT_PENDING) { |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1480 value |= 0x80; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1481 } |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1482 if ((context->regs[REG_MODE_4] & BIT_INTERLACE) && context->framebuf == context->oddbuf) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1483 value |= 0x10; |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1484 } |
|
318
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1485 uint32_t line= context->cycles / MCLKS_LINE; |
|
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1486 uint32_t linecyc = context->cycles % MCLKS_LINE; |
|
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1487 if (line >= (context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE)) { |
|
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1488 value |= 0x8; |
|
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1489 } |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
1490 if (linecyc < (context->latched_mode & BIT_H40 ? HBLANK_CLEAR_H40 : HBLANK_CLEAR_H32)) { |
|
318
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1491 value |= 0x4; |
|
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1492 } |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1493 if (context->flags & FLAG_DMA_RUN) { |
|
141
576f55711d8d
Fix DMA in progress flag in VDP status register
Mike Pavone <pavone@retrodev.com>
parents:
138
diff
changeset
|
1494 value |= 0x2; |
| 75 | 1495 } |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1496 if (context->latched_mode & BIT_PAL) {//Not sure about this, need to verify |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1497 value |= 0x1; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1498 } |
|
318
789f2f5f2277
Implement hblank flag in status register
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
1499 //TODO: Sprite overflow, sprite collision, odd frame flag |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1500 return value; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1501 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1502 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1503 uint16_t vdp_data_port_read(vdp_context * context) |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1504 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1505 context->flags &= ~FLAG_PENDING; |
| 138 | 1506 if (context->cd & 1) { |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1507 return 0; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1508 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1509 //Not sure if the FIFO should be drained before processing a read or not, but it would make sense |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1510 context->flags &= ~FLAG_UNUSED_SLOT; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1511 while (!(context->flags & FLAG_UNUSED_SLOT)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1512 vdp_run_context(context, context->cycles + ((context->latched_mode & BIT_H40) ? 16 : 20)); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1513 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1514 uint16_t value = 0; |
| 138 | 1515 switch (context->cd & 0xF) |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1516 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1517 case VRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1518 value = context->vdpmem[context->address] << 8; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1519 context->flags &= ~FLAG_UNUSED_SLOT; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1520 while (!(context->flags & FLAG_UNUSED_SLOT)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1521 vdp_run_context(context, context->cycles + ((context->latched_mode & BIT_H40) ? 16 : 20)); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1522 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1523 value |= context->vdpmem[context->address ^ 1]; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1524 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1525 case CRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1526 value = context->cram[(context->address/2) & (CRAM_SIZE-1)]; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1527 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1528 case VSRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1529 if (((context->address / 2) & 63) < VSRAM_SIZE) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1530 value = context->vsram[context->address & 63]; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1531 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1532 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1533 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1534 context->address += context->regs[REG_AUTOINC]; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1535 return value; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1536 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1537 |
| 137 | 1538 uint16_t vdp_hv_counter_read(vdp_context * context) |
| 1539 { | |
|
330
57453d3d8be4
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mike Pavone <pavone@retrodev.com>
parents:
329
diff
changeset
|
1540 //TODO: deal with clock adjustemnts handled in vdp_run_context |
| 137 | 1541 uint32_t line= context->cycles / MCLKS_LINE; |
| 1542 if (!line) { | |
| 1543 line = 0xFF; | |
| 1544 } else { | |
| 1545 line--; | |
| 1546 if (line > 0xEA) { | |
| 1547 line = (line + 0xFA) & 0xFF; | |
| 1548 } | |
| 1549 } | |
| 1550 uint32_t linecyc = context->cycles % MCLKS_LINE; | |
| 1551 if (context->latched_mode & BIT_H40) { | |
|
332
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1552 uint32_t slot; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1553 if (linecyc < MCLKS_SLOT_H40*HSYNC_SLOT_H40) { |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1554 slot = linecyc/MCLKS_SLOT_H40; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1555 } else if(linecyc < MCLK_WEIRD_END) { |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1556 switch(linecyc-(MCLKS_SLOT_H40*HSYNC_SLOT_H40)) |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1557 { |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1558 case 0: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1559 slot = 0; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1560 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1561 case 19: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1562 slot = 1; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1563 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1564 case 39: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1565 slot = 2; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1566 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1567 case 59: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1568 slot = 2; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1569 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1570 case 79: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1571 slot = 3; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1572 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1573 case 97: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1574 slot = 4; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1575 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1576 case 117: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1577 slot = 5; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1578 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1579 case 137: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1580 slot = 6; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1581 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1582 case 157: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1583 slot = 7; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1584 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1585 case 175: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1586 slot = 8; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1587 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1588 case 195: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1589 slot = 9; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1590 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1591 case 215: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1592 slot = 11; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1593 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1594 case 235: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1595 slot = 12; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1596 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1597 case 253: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1598 slot = 13; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1599 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1600 case 273: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1601 slot = 14; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1602 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1603 case 293: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1604 slot = 15; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1605 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1606 case 313: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1607 slot = 16; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1608 break; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1609 default: |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1610 fprintf(stderr, "cycles after weirdness %d\n", linecyc-(MCLKS_SLOT_H40*HSYNC_SLOT_H40)); |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1611 exit(1); |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1612 } |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1613 slot += HSYNC_SLOT_H40; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1614 } else { |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1615 slot = (linecyc-MCLK_WEIRD_END)/MCLKS_SLOT_H40 + SLOT_WEIRD_END; |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1616 } |
|
671a5be51522
Update hv counter calculation for clock wonkiness
Mike Pavone <pavone@retrodev.com>
parents:
331
diff
changeset
|
1617 linecyc = slot * 2; |
| 137 | 1618 if (linecyc >= 86) { |
| 1619 linecyc -= 86; | |
| 1620 } else { | |
| 1621 linecyc += 334; | |
| 1622 } | |
| 1623 if (linecyc > 0x16C) { | |
| 1624 linecyc += 92; | |
| 1625 } | |
| 1626 } else { | |
| 1627 linecyc /= 10; | |
| 1628 if (linecyc >= 74) { | |
| 1629 linecyc -= 74; | |
| 1630 } else { | |
| 1631 linecyc += 268; | |
| 1632 } | |
| 1633 if (linecyc > 0x127) { | |
| 1634 linecyc += 170; | |
| 1635 } | |
| 1636 } | |
| 1637 linecyc &= 0xFF; | |
|
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1638 if (context->double_res) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1639 line <<= 1; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1640 if (line & 0x100) { |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1641 line |= 1; |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1642 } |
|
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
1643 } |
| 137 | 1644 return (line << 8) | linecyc; |
| 1645 } | |
| 1646 | |
|
65
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1647 void vdp_adjust_cycles(vdp_context * context, uint32_t deduction) |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1648 { |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1649 context->cycles -= deduction; |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1650 for(fifo_entry * start = (context->fifo_end - FIFO_SIZE); start < context->fifo_cur; start++) { |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1651 if (start->cycle >= deduction) { |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1652 start->cycle -= deduction; |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1653 } else { |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1654 start->cycle = 0; |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1655 } |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1656 } |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1657 } |
|
aef6302770c2
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Mike Pavone <pavone@retrodev.com>
parents:
63
diff
changeset
|
1658 |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1659 uint32_t vdp_next_hint(vdp_context * context) |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1660 { |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1661 if (!(context->regs[REG_MODE_1] & BIT_HINT_EN)) { |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1662 return 0xFFFFFFFF; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1663 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1664 if (context->flags2 & FLAG2_HINT_PENDING) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1665 return context->cycles; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1666 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1667 uint32_t active_lines = context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1668 uint32_t line = context->cycles / MCLKS_LINE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1669 if (line >= active_lines) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1670 return 0xFFFFFFFF; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1671 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1672 uint32_t linecyc = context->cycles % MCLKS_LINE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1673 uint32_t hcycle = context->cycles + context->hint_counter * MCLKS_LINE + MCLKS_LINE - linecyc; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1674 if (!line) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1675 hcycle += MCLKS_LINE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1676 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1677 return hcycle; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1678 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1679 |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1680 uint32_t vdp_next_vint(vdp_context * context) |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1681 { |
|
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
323
diff
changeset
|
1682 if (!(context->regs[REG_MODE_2] & BIT_VINT_EN)) { |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1683 return 0xFFFFFFFF; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1684 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1685 if (context->flags2 & FLAG2_VINT_PENDING) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1686 return context->cycles; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1687 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1688 uint32_t active_lines = context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1689 uint32_t vcycle = MCLKS_LINE * active_lines; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1690 if (context->latched_mode & BIT_H40) { |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
1691 vcycle += VINT_CYCLE_H40; |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1692 } else { |
|
331
de17e0352f27
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Mike Pavone <pavone@retrodev.com>
parents:
330
diff
changeset
|
1693 vcycle += VINT_CYCLE_H32; |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1694 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1695 if (vcycle < context->cycles) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1696 return 0xFFFFFFFF; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1697 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1698 return vcycle; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1699 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1700 |
| 333 | 1701 uint32_t vdp_next_vint_z80(vdp_context * context) |
| 1702 { | |
| 1703 uint32_t active_lines = context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE; | |
| 1704 uint32_t vcycle = MCLKS_LINE * active_lines; | |
| 1705 if (context->latched_mode & BIT_H40) { | |
| 1706 vcycle += VINT_CYCLE_H40; | |
| 1707 } else { | |
| 1708 vcycle += VINT_CYCLE_H32; | |
| 1709 } | |
| 1710 return vcycle; | |
| 1711 } | |
| 1712 | |
|
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1713 void vdp_int_ack(vdp_context * context, uint16_t int_num) |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1714 { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1715 if (int_num == 6) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1716 context->flags2 &= ~FLAG2_VINT_PENDING; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1717 } else if(int_num ==4) { |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1718 context->flags2 &= ~FLAG2_HINT_PENDING; |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1719 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1720 } |
|
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
291
diff
changeset
|
1721 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1722 #define GST_VDP_REGS 0xFA |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1723 #define GST_VDP_MEM 0x12478 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1724 |
|
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1725 uint8_t vdp_load_gst(vdp_context * context, FILE * state_file) |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1726 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1727 uint8_t tmp_buf[CRAM_SIZE*2]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1728 fseek(state_file, GST_VDP_REGS, SEEK_SET); |
|
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1729 if (fread(context->regs, 1, VDP_REGS, state_file) != VDP_REGS) { |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1730 fputs("Failed to read VDP registers from savestate\n", stderr); |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1731 return 0; |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1732 } |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1733 context->double_res = (context->regs[REG_MODE_4] & (BIT_INTERLACE | BIT_DOUBLE_RES)) == (BIT_INTERLACE | BIT_DOUBLE_RES); |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1734 if (!context->double_res) { |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1735 context->framebuf = context->oddbuf; |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1736 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1737 latch_mode(context); |
|
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1738 if (fread(tmp_buf, 1, sizeof(tmp_buf), state_file) != sizeof(tmp_buf)) { |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1739 fputs("Failed to read CRAM from savestate\n", stderr); |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1740 return 0; |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1741 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1742 for (int i = 0; i < CRAM_SIZE; i++) { |
|
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1743 uint16_t value; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1744 context->cram[i] = value = (tmp_buf[i*2+1] << 8) | tmp_buf[i*2]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1745 context->colors[i] = color_map[value & 0xEEE]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1746 context->colors[i + CRAM_SIZE] = color_map[(value & 0xEEE) | FBUF_SHADOW]; |
|
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1747 context->colors[i + CRAM_SIZE*2] = color_map[(value & 0xEEE) | FBUF_HILIGHT]; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1748 } |
|
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1749 if (fread(tmp_buf, 2, VSRAM_SIZE, state_file) != VSRAM_SIZE) { |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1750 fputs("Failed to read VSRAM from savestate\n", stderr); |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1751 return 0; |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1752 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1753 for (int i = 0; i < VSRAM_SIZE; i++) { |
|
23
3e924bb56560
Fix endianness of VSRAM when read from Genecyst save state
Mike Pavone <pavone@retrodev.com>
parents:
22
diff
changeset
|
1754 context->vsram[i] = (tmp_buf[i*2+1] << 8) | tmp_buf[i*2]; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1755 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1756 fseek(state_file, GST_VDP_MEM, SEEK_SET); |
|
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1757 if (fread(context->vdpmem, 1, VRAM_SIZE, state_file) != VRAM_SIZE) { |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1758 fputs("Failed to read VRAM from savestate\n", stderr); |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1759 return 0; |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1760 } |
|
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
417
diff
changeset
|
1761 return 1; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1762 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1763 |
|
56
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1764 void vdp_save_state(vdp_context * context, FILE * outfile) |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1765 { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1766 uint8_t tmp_buf[CRAM_SIZE*2]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1767 fseek(outfile, GST_VDP_REGS, SEEK_SET); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1768 fwrite(context->regs, 1, VDP_REGS, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1769 for (int i = 0; i < CRAM_SIZE; i++) { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1770 tmp_buf[i*2] = context->cram[i]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1771 tmp_buf[i*2+1] = context->cram[i] >> 8; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1772 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1773 fwrite(tmp_buf, 1, sizeof(tmp_buf), outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1774 for (int i = 0; i < VSRAM_SIZE; i++) { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1775 tmp_buf[i*2] = context->vsram[i]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1776 tmp_buf[i*2+1] = context->vsram[i] >> 8; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1777 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1778 fwrite(tmp_buf, 2, VSRAM_SIZE, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1779 fseek(outfile, GST_VDP_MEM, SEEK_SET); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1780 fwrite(context->vdpmem, 1, VRAM_SIZE, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1781 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1782 |