Mercurial > repos > blastem
annotate vdp.c @ 151:6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Thu, 03 Jan 2013 22:07:40 -0800 |
| parents | 139e5dcd6aa3 |
| children | 8b846bcff6a2 |
| 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> |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
5 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
6 #define NTSC_ACTIVE 225 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
7 #define PAL_ACTIVE 241 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 #define BUF_BIT_PRIORITY 0x40 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
9 #define MAP_BIT_PRIORITY 0x8000 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 #define MAP_BIT_H_FLIP 0x800 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 #define MAP_BIT_V_FLIP 0x1000 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
12 |
| 75 | 13 #define BIT_PAL 0x8 |
| 14 #define BIT_DMA_ENABLE 0x4 | |
| 15 #define BIT_H40 0x1 | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
16 |
|
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 #define SCROLL_BUFFER_SIZE 32 |
|
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
|
18 #define SCROLL_BUFFER_DRAW 16 |
|
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
|
19 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
20 #define FIFO_SIZE 4 |
| 40 | 21 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
22 void init_vdp_context(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
23 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
24 memset(context, 0, sizeof(*context)); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
25 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
|
26 memset(context->vdpmem, 0, VRAM_SIZE); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
27 context->framebuf = malloc(FRAMEBUF_SIZE); |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
28 memset(context->framebuf, 0, FRAMEBUF_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
|
29 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
|
30 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
|
31 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
|
32 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
|
33 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
|
34 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
|
35 context->fifo_end = context->fifo_cur + FIFO_SIZE; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
36 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
37 |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
38 void render_sprite_cells(vdp_context * context) |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
39 { |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
40 if (context->cur_slot >= context->sprite_draws) { |
|
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
41 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
|
42 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
43 uint16_t dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
44 int16_t x; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
45 if (d->h_flip) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
46 x = d->x_pos + 7; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
47 dir = -1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
48 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
49 x = d->x_pos; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
50 dir = 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
51 } |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
52 //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
|
53 context->cur_slot--; |
|
143
e5487ef04619
Fix infinite loop bug in sprite rendering
Mike Pavone <pavone@retrodev.com>
parents:
142
diff
changeset
|
54 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
|
55 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
|
56 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
|
57 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
58 x += dir; |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
59 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
|
60 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
|
61 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
62 x += dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
63 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
64 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
65 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
66 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
67 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
|
68 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
69 if (context->sprite_index && context->slot_counter) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
70 line += 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
71 line &= 0xFF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
72 context->sprite_index &= 0x7F; |
|
38
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
73 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
|
74 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
|
75 context->sprite_index = 0; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
76 return; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
77 } |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
78 } 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
|
79 context->sprite_index = 0; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
80 return; |
|
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
81 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
82 //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
|
83 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
|
84 uint16_t address = context->sprite_index * 8 + sat_address; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
85 int16_t y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) - 128; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
86 uint8_t height = ((context->vdpmem[address+2] & 0x3) + 1) * 8; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
87 //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
|
88 if (y <= line && line < (y + height)) { |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
89 //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
|
90 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
|
91 context->sprite_info_list[context->slot_counter].index = context->sprite_index; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
92 context->sprite_info_list[context->slot_counter].y = y; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
93 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
94 context->sprite_index = context->vdpmem[address+3] & 0x7F; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
95 if (context->sprite_index && context->slot_counter) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
96 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
97 address = context->sprite_index * 8 + sat_address; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
98 y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) - 128; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
99 height = ((context->vdpmem[address+2] & 0x3) + 1) * 8; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
100 if (y <= line && line < (y + height)) { |
|
27
aa1c47fab3f1
Fix sprite transparency for overlapping sprites
Mike Pavone <pavone@retrodev.com>
parents:
26
diff
changeset
|
101 //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
|
102 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
|
103 context->sprite_info_list[context->slot_counter].index = context->sprite_index; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
104 context->sprite_info_list[context->slot_counter].y = y; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
105 } |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
106 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
|
107 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
108 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
109 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
110 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
111 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
|
112 { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
113 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
|
114 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
|
115 line += 1; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
116 line &= 0xFF; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
117 //in tiles |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
118 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
|
119 //in pixels |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
120 uint8_t height = ((context->sprite_info_list[context->cur_slot].size & 0x3) + 1) * 8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
121 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
|
122 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
|
123 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
|
124 uint8_t row; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
125 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
|
126 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
|
127 } else { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
128 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
|
129 } |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
130 uint16_t address = ((tileinfo & 0x7FF) << 5) + row * 4; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
131 int16_t x = ((context->vdpmem[att_addr+ 2] & 0x3) << 8) | context->vdpmem[att_addr + 3]; |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
132 if (x) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
133 context->flags |= FLAG_CAN_MASK; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
134 } 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
|
135 context->flags |= FLAG_MASKED; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
136 } |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
137 |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
138 context->flags &= ~FLAG_DOT_OFLOW; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
139 int16_t i; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
140 if (context->flags & FLAG_MASKED) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
141 for (i=0; i < width && context->sprite_draws; i++) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
142 --context->sprite_draws; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
143 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
|
144 } |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
145 } else { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
146 x -= 128; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
147 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
|
148 int16_t dir; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
149 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
|
150 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
|
151 dir = -8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
152 } else { |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
153 dir = 8; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
154 } |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
155 //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
|
156 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
|
157 --context->sprite_draws; |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
158 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
|
159 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
|
160 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
|
161 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
|
162 } |
|
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
163 } |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
164 if (i < width) { |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
165 context->flags |= FLAG_DOT_OFLOW; |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
166 } |
|
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
167 context->cur_slot--; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
168 } else { |
|
34
0e7df84158b1
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
169 context->flags |= FLAG_DOT_OFLOW; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
170 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
171 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
172 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
173 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
174 #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
|
175 #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
|
176 #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
|
177 #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
|
178 #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
|
179 #define VSRAM_WRITE 5 |
| 75 | 180 #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
|
181 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
182 void external_slot(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
183 { |
| 75 | 184 //TODO: Figure out what happens if CD bit 4 is not set in DMA copy mode |
| 185 //TODO: Figure out what happens when CD:0-3 is not set to a write mode in DMA operations | |
| 186 //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
|
187 if(context->flags & FLAG_DMA_RUN) { |
| 75 | 188 uint16_t dma_len; |
| 189 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
|
190 { |
| 75 | 191 //68K -> VDP |
| 192 case 0: | |
| 193 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
|
194 switch(context->dma_cd & 0xF) |
| 75 | 195 { |
| 196 case VRAM_WRITE: | |
| 197 if (context->flags & FLAG_DMA_PROG) { | |
| 198 context->vdpmem[context->address ^ 1] = context->dma_val; | |
| 199 context->flags &= ~FLAG_DMA_PROG; | |
| 200 } else { | |
| 201 context->dma_val = read_dma_value((context->regs[REG_DMASRC_H] << 16) | (context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]); | |
| 202 context->vdpmem[context->address] = context->dma_val >> 8; | |
| 203 context->flags |= FLAG_DMA_PROG; | |
| 204 } | |
| 205 break; | |
| 206 case CRAM_WRITE: | |
| 207 context->cram[(context->address/2) & (CRAM_SIZE-1)] = 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
|
208 //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 | 209 break; |
| 210 case VSRAM_WRITE: | |
| 211 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 212 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]); | |
| 213 } | |
| 214 break; | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
215 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
216 break; |
| 75 | 217 //Fill |
| 218 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
|
219 switch(context->dma_cd & 0xF) |
| 75 | 220 { |
| 221 case VRAM_WRITE: | |
| 222 //Charles MacDonald's VDP doc says that the low byte gets written first | |
| 142 | 223 context->vdpmem[context->address] = context->dma_val; |
| 224 context->dma_val = (context->dma_val << 8) | ((context->dma_val >> 8) & 0xFF); | |
| 75 | 225 break; |
| 226 case CRAM_WRITE: | |
| 227 context->cram[(context->address/2) & (CRAM_SIZE-1)] = context->dma_val; | |
| 228 break; | |
| 229 case VSRAM_WRITE: | |
| 230 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 231 context->vsram[(context->address/2) & 63] = context->dma_val; | |
| 232 } | |
| 233 break; | |
| 234 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
235 break; |
| 75 | 236 //Copy |
| 237 case 0xC0: | |
| 238 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
|
239 switch(context->dma_cd & 0xF) |
| 75 | 240 { |
| 241 case VRAM_WRITE: | |
| 242 context->vdpmem[context->address] = context->dma_val; | |
| 243 break; | |
| 244 case CRAM_WRITE: | |
| 245 context->cram[(context->address/2) & (CRAM_SIZE-1)] = context->dma_val; | |
| 246 break; | |
| 247 case VSRAM_WRITE: | |
| 248 if (((context->address/2) & 63) < VSRAM_SIZE) { | |
| 249 context->vsram[(context->address/2) & 63] = context->dma_val; | |
| 250 } | |
| 251 break; | |
| 252 } | |
| 253 context->flags &= ~FLAG_DMA_PROG; | |
| 254 } else { | |
| 255 //I assume, that DMA copy copies from the same RAM as the destination | |
| 256 //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
|
257 switch(context->dma_cd & 0xF) |
| 75 | 258 { |
| 259 case VRAM_WRITE: | |
| 260 context->dma_val = context->vdpmem[(context->regs[REG_DMASRC_M] << 8) | context->regs[REG_DMASRC_L]]; | |
| 261 break; | |
| 262 case CRAM_WRITE: | |
| 263 context->dma_val = context->cram[context->regs[REG_DMASRC_L] & (CRAM_SIZE-1)]; | |
| 264 break; | |
| 265 case VSRAM_WRITE: | |
| 266 if ((context->regs[REG_DMASRC_L] & 63) < VSRAM_SIZE) { | |
| 267 context->dma_val = context->vsram[context->regs[REG_DMASRC_L] & 63]; | |
| 268 } else { | |
| 269 context->dma_val = 0; | |
| 270 } | |
| 271 break; | |
| 272 } | |
| 273 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
|
274 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
275 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
276 } |
| 75 | 277 if (!(context->flags & FLAG_DMA_PROG)) { |
| 278 context->address += context->regs[REG_AUTOINC]; | |
| 279 context->regs[REG_DMASRC_L] += 1; | |
| 135 | 280 if (!context->regs[REG_DMASRC_L]) { |
| 281 context->regs[REG_DMASRC_M] += 1; | |
| 282 } | |
| 75 | 283 dma_len = ((context->regs[REG_DMALEN_H] << 8) | context->regs[REG_DMALEN_L]) - 1; |
| 284 context->regs[REG_DMALEN_H] = dma_len >> 8; | |
| 285 context->regs[REG_DMALEN_L] = dma_len; | |
| 286 if (!dma_len) { | |
| 287 context->flags &= ~FLAG_DMA_RUN; | |
| 288 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
289 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
290 } else { |
| 75 | 291 fifo_entry * start = (context->fifo_end - FIFO_SIZE); |
| 292 if (context->fifo_cur != start && start->cycle <= context->cycles) { | |
| 293 if ((context->regs[REG_MODE_2] & BIT_DMA_ENABLE) && (context->cd & DMA_START)) { | |
| 294 context->flags |= FLAG_DMA_RUN; | |
| 295 context->dma_val = start->value; | |
| 138 | 296 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
|
297 context->dma_cd = context->cd; |
| 75 | 298 } else { |
| 138 | 299 switch (start->cd & 0xF) |
| 75 | 300 { |
| 301 case VRAM_WRITE: | |
| 302 if (start->partial) { | |
| 303 //printf("VRAM Write: %X to %X\n", start->value, context->address ^ 1); | |
| 138 | 304 context->vdpmem[start->address ^ 1] = start->value; |
| 75 | 305 } else { |
| 306 //printf("VRAM Write High: %X to %X\n", start->value >> 8, context->address); | |
| 138 | 307 context->vdpmem[start->address] = start->value >> 8; |
| 75 | 308 start->partial = 1; |
| 309 //skip auto-increment and removal of entry from fifo | |
| 310 return; | |
| 311 } | |
| 312 break; | |
| 313 case CRAM_WRITE: | |
|
151
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
314 //printf("CRAM Write | %X to %X\n", start->value, (start->address/2) & (CRAM_SIZE-1)); |
| 138 | 315 context->cram[(start->address/2) & (CRAM_SIZE-1)] = start->value; |
| 75 | 316 break; |
| 317 case VSRAM_WRITE: | |
| 138 | 318 if (((start->address/2) & 63) < VSRAM_SIZE) { |
| 75 | 319 //printf("VSRAM Write: %X to %X\n", start->value, context->address); |
| 138 | 320 context->vsram[(start->address/2) & 63] = start->value; |
| 75 | 321 } |
| 322 break; | |
| 323 } | |
| 138 | 324 //context->address += context->regs[REG_AUTOINC]; |
| 75 | 325 } |
| 326 fifo_entry * cur = start+1; | |
| 327 if (cur < context->fifo_cur) { | |
| 328 memmove(start, cur, sizeof(fifo_entry) * (context->fifo_cur - cur)); | |
| 329 } | |
| 330 context->fifo_cur -= 1; | |
| 331 } else { | |
| 332 context->flags |= FLAG_UNUSED_SLOT; | |
| 333 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
334 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
335 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
336 |
| 40 | 337 #define WINDOW_RIGHT 0x80 |
| 338 #define WINDOW_DOWN 0x80 | |
| 339 | |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
340 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
|
341 { |
| 40 | 342 if (!vsram_off) { |
| 343 uint16_t left_col, right_col; | |
| 344 if (context->regs[REG_WINDOW_H] & WINDOW_RIGHT) { | |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
345 left_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
346 right_col = 42; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
347 } else { |
| 40 | 348 left_col = 0; |
| 349 right_col = (context->regs[REG_WINDOW_H] & 0x1F) * 2; | |
| 350 if (right_col) { | |
| 351 right_col += 2; | |
| 352 } | |
| 353 } | |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
354 uint16_t top_line, bottom_line; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
355 if (context->regs[REG_WINDOW_V] & WINDOW_DOWN) { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
356 top_line = (context->regs[REG_WINDOW_V] & 0x1F) * 8; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
357 bottom_line = 241; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
358 } else { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
359 top_line = 0; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
360 bottom_line = (context->regs[REG_WINDOW_V] & 0x1F) * 8; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
361 } |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
362 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
|
363 uint16_t address = context->regs[REG_WINDOW] << 10; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
364 uint16_t line_offset, offset, mask; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
365 if (context->latched_mode & BIT_H40) { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
366 address &= 0xF000; |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
367 line_offset = (((line) / 8) * 64 * 2) & 0xFFF; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
368 mask = 0x7F; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
369 |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
370 } else { |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
371 address &= 0xF800; |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
372 line_offset = (((line) / 8) * 32 * 2) & 0xFFF; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
373 mask = 0x3F; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
374 } |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
375 offset = address + line_offset + (((column - 2) * 2) & mask); |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
376 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
|
377 //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
|
378 offset = address + line_offset + (((column - 1) * 2) & mask); |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
379 context->col_2 = (context->vdpmem[offset] << 8) | context->vdpmem[offset+1]; |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
380 context->v_offset = (line) & 0x7; |
|
41
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
381 context->flags |= FLAG_WINDOW; |
|
e591004487bc
More correct window support, maybe
Mike Pavone <pavone@retrodev.com>
parents:
40
diff
changeset
|
382 return; |
| 40 | 383 } |
| 384 context->flags &= ~FLAG_WINDOW; | |
| 385 } | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
386 uint16_t vscroll; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
387 switch(context->regs[REG_SCROLL] & 0x30) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
388 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
389 case 0: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
390 vscroll = 0xFF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
391 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
392 case 0x10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
393 vscroll = 0x1FF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
394 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
395 case 0x20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
396 //TODO: Verify this behavior |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
397 vscroll = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
398 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
399 case 0x30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
400 vscroll = 0x3FF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
401 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
402 } |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
403 vscroll &= (context->vsram[(context->regs[REG_MODE_3] & 0x4 ? column : 0) + vsram_off] + line); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
404 context->v_offset = vscroll & 0x7; |
|
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
|
405 //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); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
406 vscroll /= 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
407 uint16_t hscroll_mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
408 uint16_t v_mul; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
409 switch(context->regs[REG_SCROLL] & 0x3) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
410 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
411 case 0: |
|
108
1a551a85cb06
Fix horizontal mask values for scroll plane map address calculation
Mike Pavone <pavone@retrodev.com>
parents:
87
diff
changeset
|
412 hscroll_mask = 0x1F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
413 v_mul = 64; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
414 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
415 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
|
416 hscroll_mask = 0x3F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
417 v_mul = 128; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
418 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
419 case 0x2: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
420 //TODO: Verify this behavior |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
421 hscroll_mask = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
422 v_mul = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
423 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
424 case 0x3: |
|
108
1a551a85cb06
Fix horizontal mask values for scroll plane map address calculation
Mike Pavone <pavone@retrodev.com>
parents:
87
diff
changeset
|
425 hscroll_mask = 0x7F; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
426 v_mul = 256; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
427 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
428 } |
| 28 | 429 uint16_t hscroll, offset; |
| 430 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
|
431 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
|
432 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
|
433 //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 | 434 uint16_t col_val = (context->vdpmem[offset] << 8) | context->vdpmem[offset+1]; |
| 435 if (i) { | |
| 436 context->col_2 = col_val; | |
| 437 } else { | |
| 438 context->col_1 = col_val; | |
| 439 } | |
| 440 } | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
441 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
442 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
443 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
|
444 { |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
445 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
|
446 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
447 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
448 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
|
449 { |
|
25
4d0c20ad815a
Fix vertical scroll value for plane B
Mike Pavone <pavone@retrodev.com>
parents:
24
diff
changeset
|
450 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
|
451 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
452 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
453 void render_map(uint16_t col, uint8_t * tmp_buf, vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
454 { |
|
42
6653e67a6811
Fix bug in tile address masking. Remove some debug code from window plane.
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
455 uint16_t address = ((col & 0x7FF) << 5); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
456 if (col & MAP_BIT_V_FLIP) { |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
457 address += 28 - 4 * context->v_offset; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
458 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
459 address += 4 * context->v_offset; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
460 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
461 uint16_t pal_priority = (col >> 9) & 0x70; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
462 int32_t dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
463 if (col & MAP_BIT_H_FLIP) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
464 tmp_buf += 7; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
465 dir = -1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
466 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
467 dir = 1; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
468 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
469 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
|
470 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
471 *tmp_buf = pal_priority | (context->vdpmem[address] >> 4); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
472 tmp_buf += dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
473 *tmp_buf = pal_priority | (context->vdpmem[address] & 0xF); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
474 tmp_buf += dir; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
475 } |
|
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 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
478 void render_map_1(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
479 { |
|
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
|
480 render_map(context->col_1, context->tmp_buf_a+SCROLL_BUFFER_DRAW, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
481 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
482 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
483 void render_map_2(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
484 { |
|
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
|
485 render_map(context->col_2, context->tmp_buf_a+SCROLL_BUFFER_DRAW+8, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
486 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
487 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
488 void render_map_3(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
489 { |
|
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
|
490 render_map(context->col_1, context->tmp_buf_b+SCROLL_BUFFER_DRAW, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
491 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
492 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
493 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
|
494 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
495 if (line >= 240) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
496 return; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
497 } |
|
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
|
498 render_map(context->col_2, context->tmp_buf_b+SCROLL_BUFFER_DRAW+8, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
499 uint16_t *dst, *end; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
500 uint8_t *sprite_buf, *plane_a, *plane_b; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
501 if (col) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
502 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
503 col-=2; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
504 dst = context->framebuf + line * 320 + col * 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
505 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
|
506 uint16_t a_src; |
| 40 | 507 if (context->flags & FLAG_WINDOW) { |
| 508 plane_a = context->tmp_buf_a + SCROLL_BUFFER_DRAW; | |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
509 a_src = FBUF_SRC_W; |
| 40 | 510 } else { |
| 511 plane_a = context->tmp_buf_a + SCROLL_BUFFER_DRAW - (context->hscroll_a & 0xF); | |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
512 a_src = FBUF_SRC_A; |
| 40 | 513 } |
|
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
|
514 plane_b = context->tmp_buf_b + SCROLL_BUFFER_DRAW - (context->hscroll_b & 0xF); |
| 30 | 515 end = dst + 16; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
516 uint16_t src; |
| 30 | 517 //printf("A | tmp_buf offset: %d\n", 8 - (context->hscroll_a & 0x7)); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
518 for (; dst < end; ++plane_a, ++plane_b, ++sprite_buf, ++dst) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
519 uint8_t pixel; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
520 if (*sprite_buf & BUF_BIT_PRIORITY && *sprite_buf & 0xF) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
521 pixel = *sprite_buf; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
522 src = FBUF_SRC_S; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
523 } else if (*plane_a & BUF_BIT_PRIORITY && *plane_a & 0xF) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
524 pixel = *plane_a; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
525 src = a_src; |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
526 } else if (*plane_b & BUF_BIT_PRIORITY && *plane_b & 0xF) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
527 pixel = *plane_b; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
528 src = FBUF_SRC_B; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
529 } else if (*sprite_buf & 0xF) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
530 pixel = *sprite_buf; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
531 src = FBUF_SRC_S; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
532 } else if (*plane_a & 0xF) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
533 pixel = *plane_a; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
534 src = a_src; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
535 } else if (*plane_b & 0xF){ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
536 pixel = *plane_b; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
537 src = FBUF_SRC_B; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
538 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
539 pixel = context->regs[REG_BG_COLOR] & 0x3F; |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
540 src = FBUF_SRC_BG; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
541 } |
|
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
42
diff
changeset
|
542 *dst = context->cram[pixel & 0x3F] | ((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
|
543 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
544 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
545 //dst = context->framebuf + line * 320; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
546 //sprite_buf = context->linebuf + col * 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
547 //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
|
548 //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
|
549 //end = dst + 8; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
550 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
551 |
| 40 | 552 uint16_t remaining; |
| 553 if (!(context->flags & FLAG_WINDOW)) { | |
| 554 remaining = context->hscroll_a & 0xF; | |
| 555 memcpy(context->tmp_buf_a + SCROLL_BUFFER_DRAW - remaining, context->tmp_buf_a + SCROLL_BUFFER_SIZE - remaining, remaining); | |
| 556 } | |
|
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
|
557 remaining = context->hscroll_b & 0xF; |
|
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
|
558 memcpy(context->tmp_buf_b + SCROLL_BUFFER_DRAW - remaining, context->tmp_buf_b + SCROLL_BUFFER_SIZE - remaining, remaining); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
559 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
560 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
561 #define COLUMN_RENDER_BLOCK(column, startcyc) \ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
562 case startcyc:\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
563 read_map_scroll_a(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
564 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
565 case (startcyc+1):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
566 external_slot(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
567 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
568 case (startcyc+2):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
569 render_map_1(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
570 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
571 case (startcyc+3):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
572 render_map_2(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
573 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
574 case (startcyc+4):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
575 read_map_scroll_b(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
576 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
577 case (startcyc+5):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
578 read_sprite_x(line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
579 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
580 case (startcyc+6):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
581 render_map_3(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
582 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
583 case (startcyc+7):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
584 render_map_output(line, column, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
585 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
586 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
587 #define COLUMN_RENDER_BLOCK_REFRESH(column, startcyc) \ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
588 case startcyc:\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
589 read_map_scroll_a(column, line, context);\ |
|
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 case (startcyc+1):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
592 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
593 case (startcyc+2):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
594 render_map_1(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
595 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
596 case (startcyc+3):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
597 render_map_2(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
598 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
599 case (startcyc+4):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
600 read_map_scroll_b(column, line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
601 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
602 case (startcyc+5):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
603 read_sprite_x(line, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
604 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
605 case (startcyc+6):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
606 render_map_3(context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
607 break;\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
608 case (startcyc+7):\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
609 render_map_output(line, column, context);\ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
610 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
611 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
612 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
|
613 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
614 uint16_t address; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
615 uint32_t mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
616 switch(linecyc) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
617 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
618 //sprite render to line buffer starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
619 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
|
620 context->cur_slot = MAX_DRAWS-1; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
621 memset(context->linebuf, 0, LINEBUF_SIZE); |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
622 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
623 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
624 case 1: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
625 case 2: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
626 case 3: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
627 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
628 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
629 //sprite attribute table scan starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
630 case 4: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
631 render_sprite_cells( context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
632 context->sprite_index = 0x80; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
633 context->slot_counter = MAX_SPRITES_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
634 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
635 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
636 case 5: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
637 case 6: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
638 case 7: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
639 case 8: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
640 case 9: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
641 case 10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
642 case 11: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
643 case 12: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
644 case 13: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
645 case 14: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
646 case 15: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
647 case 16: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
648 case 17: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
649 case 18: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
650 case 19: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
651 case 20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
652 //!HSYNC asserted |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
653 case 21: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
654 case 22: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
655 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
656 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
657 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
658 case 23: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
659 external_slot(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
660 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
661 case 24: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
662 case 25: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
663 case 26: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
664 case 27: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
665 case 28: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
666 case 29: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
667 case 30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
668 case 31: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
669 case 32: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
670 case 33: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
671 case 34: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
672 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
673 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
674 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
675 case 35: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
676 address = (context->regs[REG_HSCROLL] & 0x3F) << 10; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
677 mask = 0; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
678 if (context->regs[REG_MODE_3] & 0x2) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
679 mask |= 0xF8; |
|
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 if (context->regs[REG_MODE_3] & 0x1) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
682 mask |= 0x7; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
683 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
684 line &= mask; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
685 address += line * 4; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
686 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
|
687 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
|
688 //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
|
689 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
690 case 36: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
691 //!HSYNC high |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
692 case 37: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
693 case 38: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
694 case 39: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
695 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
696 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
697 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
698 case 40: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
699 read_map_scroll_a(0, line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
700 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
701 case 41: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
702 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
703 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
704 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
705 case 42: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
706 render_map_1(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
707 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
708 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
709 case 43: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
710 render_map_2(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
711 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
712 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
713 case 44: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
714 read_map_scroll_b(0, line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
715 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
716 case 45: |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
717 render_sprite_cells(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
718 scan_sprite_table(line, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
719 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
720 case 46: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
721 render_map_3(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
722 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
723 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
724 case 47: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
725 render_map_output(line, 0, context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
726 scan_sprite_table(line, context);//Just a guess |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
727 //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
|
728 //filled rather than the number of available slots |
|
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
729 //context->slot_counter = MAX_SPRITES_LINE - context->slot_counter; |
|
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
730 context->cur_slot = MAX_SPRITES_LINE-1; |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
731 context->sprite_draws = MAX_DRAWS; |
|
36
04672c060062
Pass all sprite masking tests
Mike Pavone <pavone@retrodev.com>
parents:
35
diff
changeset
|
732 context->flags &= (~FLAG_CAN_MASK & ~FLAG_MASKED); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
733 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
734 COLUMN_RENDER_BLOCK(2, 48) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
735 COLUMN_RENDER_BLOCK(4, 56) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
736 COLUMN_RENDER_BLOCK(6, 64) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
737 COLUMN_RENDER_BLOCK_REFRESH(8, 72) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
738 COLUMN_RENDER_BLOCK(10, 80) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
739 COLUMN_RENDER_BLOCK(12, 88) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
740 COLUMN_RENDER_BLOCK(14, 96) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
741 COLUMN_RENDER_BLOCK_REFRESH(16, 104) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
742 COLUMN_RENDER_BLOCK(18, 112) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
743 COLUMN_RENDER_BLOCK(20, 120) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
744 COLUMN_RENDER_BLOCK(22, 128) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
745 COLUMN_RENDER_BLOCK_REFRESH(24, 136) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
746 COLUMN_RENDER_BLOCK(26, 144) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
747 COLUMN_RENDER_BLOCK(28, 152) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
748 COLUMN_RENDER_BLOCK(30, 160) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
749 COLUMN_RENDER_BLOCK_REFRESH(32, 168) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
750 COLUMN_RENDER_BLOCK(34, 176) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
751 COLUMN_RENDER_BLOCK(36, 184) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
752 COLUMN_RENDER_BLOCK(38, 192) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
753 COLUMN_RENDER_BLOCK_REFRESH(40, 200) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
754 case 208: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
755 case 209: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
756 external_slot(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
757 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
758 default: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
759 //leftovers from HSYNC clock change nonsense |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
760 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
761 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
762 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
763 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
764 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
|
765 { |
| 37 | 766 uint16_t address; |
| 767 uint32_t mask; | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
768 switch(linecyc) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
769 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
770 //sprite render to line buffer starts |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
771 case 0: |
| 37 | 772 context->cur_slot = MAX_DRAWS_H32-1; |
| 773 memset(context->linebuf, 0, LINEBUF_SIZE); | |
| 774 render_sprite_cells(context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
775 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
776 case 1: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
777 case 2: |
| 37 | 778 case 3: |
| 779 render_sprite_cells(context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
780 break; |
| 37 | 781 //sprite attribute table scan starts |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
782 case 4: |
| 37 | 783 render_sprite_cells( context); |
| 784 context->sprite_index = 0x80; | |
| 785 context->slot_counter = MAX_SPRITES_LINE_H32; | |
| 786 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
787 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
788 case 5: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
789 case 6: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
790 case 7: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
791 case 8: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
792 case 9: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
793 case 10: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
794 case 11: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
795 case 12: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
796 case 13: |
| 37 | 797 render_sprite_cells(context); |
| 798 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
799 case 14: |
| 37 | 800 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
801 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
802 case 15: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
803 case 16: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
804 case 17: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
805 case 18: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
806 case 19: |
| 37 | 807 //HSYNC start |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
808 case 20: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
809 case 21: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
810 case 22: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
811 case 23: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
812 case 24: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
813 case 25: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
814 case 26: |
| 37 | 815 render_sprite_cells(context); |
| 816 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
817 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
818 case 27: |
| 37 | 819 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
820 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
821 case 28: |
| 37 | 822 address = (context->regs[REG_HSCROLL] & 0x3F) << 10; |
| 823 mask = 0; | |
| 824 if (context->regs[REG_MODE_3] & 0x2) { | |
| 825 mask |= 0xF8; | |
| 826 } | |
| 827 if (context->regs[REG_MODE_3] & 0x1) { | |
| 828 mask |= 0x7; | |
| 829 } | |
| 830 line &= mask; | |
| 831 address += line * 4; | |
| 832 context->hscroll_a = context->vdpmem[address] << 8 | context->vdpmem[address+1]; | |
| 833 context->hscroll_b = context->vdpmem[address+2] << 8 | context->vdpmem[address+3]; | |
| 834 //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
|
835 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
836 case 29: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
837 case 30: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
838 case 31: |
| 37 | 839 case 32: |
| 840 render_sprite_cells(context); | |
| 841 scan_sprite_table(line, context); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
842 break; |
| 37 | 843 //!HSYNC high |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
844 case 33: |
| 37 | 845 read_map_scroll_a(0, line, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
846 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
847 case 34: |
| 37 | 848 render_sprite_cells(context); |
| 849 scan_sprite_table(line, context); | |
|
20
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 35: |
| 37 | 852 render_map_1(context); |
| 853 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
|
854 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
855 case 36: |
| 37 | 856 render_map_2(context); |
| 857 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
|
858 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
859 case 37: |
| 37 | 860 read_map_scroll_b(0, line, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
861 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
862 case 38: |
| 37 | 863 render_sprite_cells(context); |
| 864 scan_sprite_table(line, context); | |
|
20
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 39: |
| 37 | 867 render_map_3(context); |
| 868 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
|
869 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
870 case 40: |
| 37 | 871 render_map_output(line, 0, context); |
| 872 scan_sprite_table(line, context);//Just a guess | |
| 873 //reverse context slot counter so it counts the number of sprite slots | |
| 874 //filled rather than the number of available slots | |
| 875 //context->slot_counter = MAX_SPRITES_LINE - context->slot_counter; | |
| 876 context->cur_slot = MAX_SPRITES_LINE_H32-1; | |
| 877 context->sprite_draws = MAX_DRAWS_H32; | |
| 878 context->flags &= (~FLAG_CAN_MASK & ~FLAG_MASKED); | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
879 break; |
| 37 | 880 COLUMN_RENDER_BLOCK(2, 41) |
| 881 COLUMN_RENDER_BLOCK(4, 49) | |
| 882 COLUMN_RENDER_BLOCK(6, 57) | |
| 883 COLUMN_RENDER_BLOCK_REFRESH(8, 65) | |
| 884 COLUMN_RENDER_BLOCK(10, 73) | |
| 885 COLUMN_RENDER_BLOCK(12, 81) | |
| 886 COLUMN_RENDER_BLOCK(14, 89) | |
| 887 COLUMN_RENDER_BLOCK_REFRESH(16, 97) | |
| 888 COLUMN_RENDER_BLOCK(18, 105) | |
| 889 COLUMN_RENDER_BLOCK(20, 113) | |
| 890 COLUMN_RENDER_BLOCK(22, 121) | |
| 891 COLUMN_RENDER_BLOCK_REFRESH(24, 129) | |
| 892 COLUMN_RENDER_BLOCK(26, 137) | |
| 893 COLUMN_RENDER_BLOCK(28, 145) | |
| 894 COLUMN_RENDER_BLOCK(30, 153) | |
| 895 COLUMN_RENDER_BLOCK_REFRESH(32, 161) | |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
896 case 169: |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
897 case 170: |
| 37 | 898 external_slot(context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
899 break; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
900 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
901 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
902 void latch_mode(vdp_context * context) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
903 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
904 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
|
905 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
906 |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
907 int is_refresh(vdp_context * context) |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
908 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
909 uint32_t linecyc = context->cycles % MCLKS_LINE; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
910 if (context->latched_mode & BIT_H40) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
911 linecyc = linecyc/16; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
912 return (linecyc == 73 || linecyc == 105 || linecyc == 137 || linecyc == 169 || linecyc == 201); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
913 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
914 linecyc = linecyc/20; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
915 return (linecyc == 66 || linecyc == 98 || linecyc == 130 || linecyc == 162); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
916 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
917 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
918 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
919 void check_render_bg(vdp_context * context, int32_t line) |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
920 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
921 if (line > 0) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
922 line -= 1; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
923 uint16_t * start = NULL, *end = NULL; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
924 uint32_t linecyc = (context->cycles % MCLKS_LINE); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
925 if (context->latched_mode & BIT_H40) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
926 linecyc /= 16; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
927 if (linecyc >= 55 && linecyc <= 207 && !((linecyc-55) % 8)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
928 uint32_t x = ((linecyc-55)&(~0xF))*2; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
929 start = context->framebuf + line * 320 + x; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
930 end = start + 16; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
931 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
932 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
933 linecyc /= 20; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
934 if (linecyc >= 48 && linecyc <= 168 && !((linecyc-48) % 8)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
935 uint32_t x = ((linecyc-48)&(~0xF))*2; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
936 start = context->framebuf + line * 256 + x; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
937 end = start + 16; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
938 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
939 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
940 while (start != end) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
941 *start = context->regs[REG_BG_COLOR] & 0x3F; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
942 ++start; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
943 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
944 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
945 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
946 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
947 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
|
948 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
949 while(context->cycles < target_cycles) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
950 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
951 uint32_t line = context->cycles / MCLKS_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
952 uint32_t active_lines = context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
953 if (!line) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
954 latch_mode(context); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
955 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
956 if (line < active_lines && context->regs[REG_MODE_2] & DISPLAY_ENABLE) { |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
957 //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
|
958 //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
|
959 line = (line - 1) & 0xFF; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
960 uint32_t linecyc = context->cycles % MCLKS_LINE; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
961 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
962 //Convert to slot number |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
963 if (context->latched_mode & BIT_H40){ |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
964 //TODO: Deal with nasty clock switching during HBLANK |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
965 linecyc = linecyc/16; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
966 vdp_h40(line, linecyc, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
967 context->cycles += 16; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
968 } else { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
969 linecyc = linecyc/20; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
970 vdp_h32(line, linecyc, context); |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
971 context->cycles += 20; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
972 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
973 } else { |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
974 if (!is_refresh(context)) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
975 external_slot(context); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
976 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
977 if (line < active_lines) { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
978 check_render_bg(context, line); |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
979 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
980 if (context->latched_mode & BIT_H40){ |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
981 //TODO: Deal with nasty clock switching during HBLANK |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
982 context->cycles += 16; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
983 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
984 context->cycles += 20; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
985 } |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
986 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
987 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
988 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
989 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
990 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
|
991 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
992 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
|
993 vdp_run_context(context, target_cycles); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
994 return context->cycles; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
995 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
996 |
| 75 | 997 void vdp_run_dma_done(vdp_context * context, uint32_t target_cycles) |
| 998 { | |
| 999 for(;;) { | |
| 1000 uint32_t dmalen = (context->regs[REG_DMALEN_H] << 8) | context->regs[REG_DMALEN_L]; | |
| 1001 if (!dmalen) { | |
| 1002 dmalen = 0x10000; | |
| 1003 } | |
| 1004 uint32_t min_dma_complete = dmalen * (context->latched_mode & BIT_H40 ? 16 : 20); | |
| 1005 if ((context->regs[REG_DMASRC_H] & 0xC0) == 0xC0 || (context->cd & 0xF) == VRAM_WRITE) { | |
| 1006 //DMA copies take twice as long to complete since they require a read and a write | |
| 1007 //DMA Fills and transfers to VRAM also take twice as long as it requires 2 writes for a single word | |
| 1008 min_dma_complete *= 2; | |
| 1009 } | |
| 1010 min_dma_complete += context->cycles; | |
| 1011 if (target_cycles < min_dma_complete) { | |
| 1012 vdp_run_context(context, target_cycles); | |
| 1013 return; | |
| 1014 } else { | |
| 1015 vdp_run_context(context, min_dma_complete); | |
| 1016 if (!(context->flags & FLAG_DMA_RUN)) { | |
| 1017 return; | |
| 1018 } | |
| 1019 } | |
| 1020 } | |
| 1021 } | |
| 1022 | |
| 1023 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
|
1024 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
1025 //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
|
1026 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
|
1027 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
|
1028 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1029 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
|
1030 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
|
1031 context->cd = (context->cd & 0x3) | ((value >> 2) & 0x3C); |
| 75 | 1032 context->flags &= ~FLAG_PENDING; |
|
87
60b5c9e2f4e0
vertical interrupts now work
Mike Pavone <pavone@retrodev.com>
parents:
84
diff
changeset
|
1033 //printf("New Address: %X, New CD: %X\n", context->address, context->cd); |
| 75 | 1034 if (context->cd & 0x20) { |
| 1035 if((context->regs[REG_DMASRC_H] & 0xC0) != 0x80) { | |
| 1036 //DMA copy or 68K -> VDP, transfer starts immediately | |
| 1037 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
|
1038 context->dma_cd = context->cd; |
| 75 | 1039 if (!(context->regs[REG_DMASRC_H] & 0x80)) { |
| 1040 return 1; | |
| 1041 } | |
| 1042 } | |
|
63
a6dd5b7a971b
Add FPS counter to console output
Mike Pavone <pavone@retrodev.com>
parents:
58
diff
changeset
|
1043 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1044 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1045 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
|
1046 //Register write |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1047 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
|
1048 if (reg < VDP_REGS) { |
|
87
60b5c9e2f4e0
vertical interrupts now work
Mike Pavone <pavone@retrodev.com>
parents:
84
diff
changeset
|
1049 //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
|
1050 context->regs[reg] = value; |
|
151
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
1051 if (reg == REG_MODE_2) { |
|
6b593ea0ed90
Implement MULU/MULS and DIVU/DIVS
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
1052 //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
|
1053 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1054 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1055 } else { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1056 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
|
1057 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
|
1058 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
|
1059 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1060 } |
| 75 | 1061 return 0; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1062 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1063 |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1064 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
|
1065 { |
|
58
a6a19c45d358
Properly zero-init all VDP buffers. Comment out some debug printfs.
Mike Pavone <pavone@retrodev.com>
parents:
56
diff
changeset
|
1066 //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
|
1067 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
|
1068 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
|
1069 } |
|
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1070 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
|
1071 //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
|
1072 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
|
1073 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1074 context->flags &= ~FLAG_PENDING; |
|
109
004dd46e0a97
COmment out fifo full debug printf
Mike Pavone <pavone@retrodev.com>
parents:
108
diff
changeset
|
1075 /*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
|
1076 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
|
1077 }*/ |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1078 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
|
1079 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
|
1080 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1081 context->fifo_cur->cycle = context->cycles; |
| 138 | 1082 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
|
1083 context->fifo_cur->value = value; |
| 138 | 1084 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
|
1085 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
|
1086 context->fifo_cur++; |
| 138 | 1087 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
|
1088 return 0; |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1089 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1090 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1091 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
|
1092 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1093 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
|
1094 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
|
1095 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
|
1096 value |= 0x200; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1097 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1098 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
|
1099 value |= 0x100; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1100 } |
|
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
143
diff
changeset
|
1101 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
|
1102 value |= 0x2; |
| 75 | 1103 } |
| 137 | 1104 uint32_t line= context->cycles / MCLKS_LINE; |
| 1105 if (line >= (context->latched_mode & BIT_PAL ? PAL_ACTIVE : NTSC_ACTIVE)) { | |
| 1106 value |= 0x8; | |
| 1107 } | |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1108 //TODO: Lots of other bits in status port |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1109 return value; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1110 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1111 |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1112 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
|
1113 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1114 context->flags &= ~FLAG_PENDING; |
| 138 | 1115 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
|
1116 return 0; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1117 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1118 //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
|
1119 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
|
1120 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
|
1121 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
|
1122 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1123 uint16_t value = 0; |
| 138 | 1124 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
|
1125 { |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1126 case VRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1127 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
|
1128 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
|
1129 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
|
1130 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
|
1131 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1132 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
|
1133 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1134 case CRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1135 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
|
1136 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1137 case VSRAM_READ: |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1138 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
|
1139 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
|
1140 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1141 break; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1142 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1143 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
|
1144 return value; |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1145 } |
|
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1146 |
| 137 | 1147 uint16_t vdp_hv_counter_read(vdp_context * context) |
| 1148 { | |
| 1149 uint32_t line= context->cycles / MCLKS_LINE; | |
| 1150 if (!line) { | |
| 1151 line = 0xFF; | |
| 1152 } else { | |
| 1153 line--; | |
| 1154 if (line > 0xEA) { | |
| 1155 line = (line + 0xFA) & 0xFF; | |
| 1156 } | |
| 1157 } | |
| 1158 uint32_t linecyc = context->cycles % MCLKS_LINE; | |
| 1159 if (context->latched_mode & BIT_H40) { | |
| 1160 linecyc /= 8; | |
| 1161 if (linecyc >= 86) { | |
| 1162 linecyc -= 86; | |
| 1163 } else { | |
| 1164 linecyc += 334; | |
| 1165 } | |
| 1166 if (linecyc > 0x16C) { | |
| 1167 linecyc += 92; | |
| 1168 } | |
| 1169 } else { | |
| 1170 linecyc /= 10; | |
| 1171 if (linecyc >= 74) { | |
| 1172 linecyc -= 74; | |
| 1173 } else { | |
| 1174 linecyc += 268; | |
| 1175 } | |
| 1176 if (linecyc > 0x127) { | |
| 1177 linecyc += 170; | |
| 1178 } | |
| 1179 } | |
| 1180 linecyc &= 0xFF; | |
| 1181 return (line << 8) | linecyc; | |
| 1182 } | |
| 1183 | |
|
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
|
1184 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
|
1185 { |
|
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
|
1186 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
|
1187 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
|
1188 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
|
1189 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
|
1190 } 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
|
1191 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
|
1192 } |
|
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
|
1193 } |
|
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
|
1194 } |
|
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
|
1195 |
|
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1196 #define GST_VDP_REGS 0xFA |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1197 #define GST_VDP_MEM 0x12478 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1198 |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1199 void vdp_load_savestate(vdp_context * context, FILE * state_file) |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1200 { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1201 uint8_t tmp_buf[CRAM_SIZE*2]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1202 fseek(state_file, GST_VDP_REGS, SEEK_SET); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1203 fread(context->regs, 1, VDP_REGS, state_file); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1204 latch_mode(context); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1205 fread(tmp_buf, 1, sizeof(tmp_buf), state_file); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1206 for (int i = 0; i < CRAM_SIZE; i++) { |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1207 context->cram[i] = (tmp_buf[i*2+1] << 8) | tmp_buf[i*2]; |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1208 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1209 fread(tmp_buf, 2, VSRAM_SIZE, state_file); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1210 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
|
1211 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
|
1212 } |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1213 fseek(state_file, GST_VDP_MEM, SEEK_SET); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1214 fread(context->vdpmem, 1, VRAM_SIZE, state_file); |
|
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1215 } |
|
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
1216 |
|
56
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1217 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
|
1218 { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1219 uint8_t tmp_buf[CRAM_SIZE*2]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1220 fseek(outfile, GST_VDP_REGS, SEEK_SET); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1221 fwrite(context->regs, 1, VDP_REGS, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1222 for (int i = 0; i < CRAM_SIZE; i++) { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1223 tmp_buf[i*2] = context->cram[i]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1224 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
|
1225 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1226 fwrite(tmp_buf, 1, sizeof(tmp_buf), outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1227 for (int i = 0; i < VSRAM_SIZE; i++) { |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1228 tmp_buf[i*2] = context->vsram[i]; |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1229 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
|
1230 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1231 fwrite(tmp_buf, 2, VSRAM_SIZE, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1232 fseek(outfile, GST_VDP_MEM, SEEK_SET); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1233 fwrite(context->vdpmem, 1, VRAM_SIZE, outfile); |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1234 } |
|
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
1235 |