Mercurial > repos > blastem
annotate vdp.h @ 989:d70000fdff0b
Implemented IR and undefined bits of info word for address error exception frames
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Wed, 27 Apr 2016 21:39:17 -0700 |
parents | 928442068afe |
children | bf63cbf1d7bb |
rev | line source |
---|---|
467
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
460
diff
changeset
|
1 /* |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
460
diff
changeset
|
2 Copyright 2013 Michael Pavone |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
3 This file is part of BlastEm. |
467
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
460
diff
changeset
|
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
460
diff
changeset
|
5 */ |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
6 #ifndef VDP_H_ |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
7 #define VDP_H_ |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
9 #include <stdint.h> |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 #include <stdio.h> |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
12 #define VDP_REGS 24 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
13 #define CRAM_SIZE 64 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
14 #define VSRAM_SIZE 40 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
15 #define VRAM_SIZE (64*1024) |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
16 #define LINEBUF_SIZE 320 |
175
7504200cac86
Fix order of SR and PC saved in an exception stack frame
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
17 #define FRAMEBUF_ENTRIES (320+27)*(240+27) //PAL active display + full border |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
18 #define MAX_DRAWS 40 |
37 | 19 #define MAX_DRAWS_H32 32 |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
20 #define MAX_SPRITES_LINE 20 |
37 | 21 #define MAX_SPRITES_LINE_H32 16 |
38
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
22 #define MAX_SPRITES_FRAME 80 |
898e3d035f42
Implement sprite index >= sprite limit triggers sprite limit behavior
Mike Pavone <pavone@retrodev.com>
parents:
37
diff
changeset
|
23 #define MAX_SPRITES_FRAME_H32 64 |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
24 |
230
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
175
diff
changeset
|
25 #define FBUF_SHADOW 0x0001 |
d3266cee02c9
Implemented shadow hilight mode.
Mike Pavone <pavone@retrodev.com>
parents:
175
diff
changeset
|
26 #define FBUF_HILIGHT 0x0010 |
437
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
27 #define DBG_SHADOW 0x10 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
28 #define DBG_HILIGHT 0x20 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
29 #define DBG_PRIORITY 0x8 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
30 #define DBG_SRC_MASK 0x7 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
31 #define DBG_SRC_A 0x1 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
32 #define DBG_SRC_W 0x2 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
33 #define DBG_SRC_B 0x3 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
34 #define DBG_SRC_S 0x4 |
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
35 #define DBG_SRC_BG 0x0 |
43
3fc57e1a2c56
Add debug render mode and fix vertical flip bit for bg tiles
Mike Pavone <pavone@retrodev.com>
parents:
38
diff
changeset
|
36 |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
37 #define MCLKS_LINE 3420 |
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
38 |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
39 #define FLAG_DOT_OFLOW 0x01 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
40 #define FLAG_CAN_MASK 0x02 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
41 #define FLAG_MASKED 0x04 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
42 #define FLAG_WINDOW 0x08 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
43 #define FLAG_PENDING 0x10 |
980
928442068afe
Implemented VDP read prefetch and made DMA copy not use the FIFO any more. Now up to 114 out of 122 passing on VDP FIFO Test ROM
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
44 #define FLAG_READ_FETCHED 0x20 |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
45 #define FLAG_DMA_RUN 0x40 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
46 #define FLAG_DMA_PROG 0x80 |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
47 |
494
8ac0eb05642c
Initial implementation of sprite overflow and sprite collision status register flags
Mike Pavone <pavone@retrodev.com>
parents:
480
diff
changeset
|
48 #define FLAG2_VINT_PENDING 0x01 |
8ac0eb05642c
Initial implementation of sprite overflow and sprite collision status register flags
Mike Pavone <pavone@retrodev.com>
parents:
480
diff
changeset
|
49 #define FLAG2_HINT_PENDING 0x02 |
8ac0eb05642c
Initial implementation of sprite overflow and sprite collision status register flags
Mike Pavone <pavone@retrodev.com>
parents:
480
diff
changeset
|
50 #define FLAG2_READ_PENDING 0x04 |
8ac0eb05642c
Initial implementation of sprite overflow and sprite collision status register flags
Mike Pavone <pavone@retrodev.com>
parents:
480
diff
changeset
|
51 #define FLAG2_SPRITE_COLLIDE 0x08 |
623
66cc60215e5c
Fix most of the breakage caused by the vcounter/hcounter changes
Michael Pavone <pavone@retrodev.com>
parents:
622
diff
changeset
|
52 #define FLAG2_REGION_PAL 0x10 |
75 | 53 |
54 #define DISPLAY_ENABLE 0x40 | |
55 | |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
56 enum { |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
57 REG_MODE_1=0, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
58 REG_MODE_2, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
59 REG_SCROLL_A, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
60 REG_WINDOW, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
61 REG_SCROLL_B, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
62 REG_SAT, |
337
f8c6f8684cd6
Fix background color regsiter number
Mike Pavone <pavone@retrodev.com>
parents:
333
diff
changeset
|
63 REG_BG_COLOR=7, |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
64 REG_HINT=0xA, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
65 REG_MODE_3, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
66 REG_MODE_4, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
67 REG_HSCROLL, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
68 REG_AUTOINC=0xF, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
69 REG_SCROLL, |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
70 REG_WINDOW_H, |
75 | 71 REG_WINDOW_V, |
72 REG_DMALEN_L, | |
73 REG_DMALEN_H, | |
74 REG_DMASRC_L, | |
75 REG_DMASRC_M, | |
76 REG_DMASRC_H | |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
77 } vdp_regs; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
78 |
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
79 //Mode reg 1 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
80 #define BIT_HINT_EN 0x10 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
81 #define BIT_PAL_SEL 0x04 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
82 #define BIT_HVC_LATCH 0x02 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
83 #define BIT_DISP_DIS 0x01 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
84 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
85 //Mode reg 2 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
86 #define BIT_DISP_EN 0x40 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
87 #define BIT_VINT_EN 0x20 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
88 #define BIT_DMA_ENABLE 0x10 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
89 #define BIT_PAL 0x08 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
90 #define BIT_MODE_5 0x04 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
91 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
92 //Mode reg 3 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
93 #define BIT_EINT_EN 0x10 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
94 #define BIT_VSCROLL 0x04 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
95 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
96 //Mode reg 4 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
97 #define BIT_H40 0x01 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
98 #define BIT_HILIGHT 0x8 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
99 #define BIT_DOUBLE_RES 0x4 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
100 #define BIT_INTERLACE 0x2 |
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
101 |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
102 typedef struct { |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
103 uint16_t address; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
104 int16_t x_pos; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
105 uint8_t pal_priority; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
106 uint8_t h_flip; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
107 } sprite_draw; |
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 typedef struct { |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
110 uint8_t size; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
111 uint8_t index; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
112 int16_t y; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
113 } sprite_info; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
114 |
471
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
115 #define FIFO_SIZE 4 |
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
116 |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
117 typedef struct { |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
118 uint32_t cycle; |
138 | 119 uint16_t address; |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
120 uint16_t value; |
138 | 121 uint8_t cd; |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
122 uint8_t partial; |
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
123 } fifo_entry; |
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
124 |
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
125 typedef struct { |
471
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
126 fifo_entry fifo[FIFO_SIZE]; |
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
127 int32_t fifo_write; |
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
128 int32_t fifo_read; |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
129 uint16_t address; |
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
130 uint8_t cd; |
56
a28b1dfe1af2
Fix CRAM and possibly VSRAM writes
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
131 uint8_t flags; |
138 | 132 uint8_t regs[VDP_REGS]; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
133 //cycle count in MCLKs |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
134 uint32_t cycles; |
717
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents:
710
diff
changeset
|
135 uint32_t pending_vint_start; |
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents:
710
diff
changeset
|
136 uint32_t pending_hint_start; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
137 uint8_t *vdpmem; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
138 //stores 2-bit palette + 4-bit palette index + priority for current sprite line |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
139 uint8_t *linebuf; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
140 //stores 12-bit color + shadow/highlight bits |
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
141 void *framebuf; |
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
142 void *oddbuf; |
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
143 void *evenbuf; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
144 uint16_t cram[CRAM_SIZE]; |
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
145 uint32_t colors[CRAM_SIZE*3]; |
437
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
146 uint32_t debugcolors[1 << (3 + 1 + 1 + 1)];//3 bits for source, 1 bit for priority, 1 bit for shadow, 1 bit for hilight |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
147 uint16_t vsram[VSRAM_SIZE]; |
710
4cd8823f79e3
First pass at emulating a vscroll latch. Titan's Overdrive demo seems to depend on the scroll value being latched early in the line before the HINT gets a chance to change it
Michael Pavone <pavone@retrodev.com>
parents:
697
diff
changeset
|
148 uint16_t vscroll_latch[2]; |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
680
diff
changeset
|
149 uint32_t frame; |
622
b76d2a628ab9
Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
Michael Pavone <pavone@retrodev.com>
parents:
494
diff
changeset
|
150 uint16_t vcounter; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
151 uint16_t hscroll_a; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
152 uint16_t hscroll_b; |
922
913a6336ce20
Shift slot number to slot behavior mapping by six slots in H40 mode. This makes the line change slot align with the point at which the display turns on and off at the end of the active display area. Also fixed a regression in which an external slot got accidentally changed into a sprite draw slot
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
153 uint8_t hslot; //hcounter/2 |
622
b76d2a628ab9
Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
Michael Pavone <pavone@retrodev.com>
parents:
494
diff
changeset
|
154 uint8_t latched_mode; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
155 uint8_t sprite_index; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
156 uint8_t sprite_draws; |
21
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
157 int8_t slot_counter; |
72ce60cb1711
Sprites somewhat less broken
Mike Pavone <pavone@retrodev.com>
parents:
20
diff
changeset
|
158 int8_t cur_slot; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
159 sprite_draw sprite_draw_list[MAX_DRAWS]; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
160 sprite_info sprite_info_list[MAX_SPRITES_LINE]; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
161 uint16_t col_1; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
162 uint16_t col_2; |
480
0737953132ad
Implement HV counter latch
Mike Pavone <pavone@retrodev.com>
parents:
478
diff
changeset
|
163 uint16_t hv_latch; |
980
928442068afe
Implemented VDP read prefetch and made DMA copy not use the FIFO any more. Now up to 114 out of 122 passing on VDP FIFO Test ROM
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
164 uint16_t prefetch; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
165 uint8_t v_offset; |
131
8fc8e46be691
Fix bug that was causing DMA fills to lock up under certain circumstances
Mike Pavone <pavone@retrodev.com>
parents:
75
diff
changeset
|
166 uint8_t dma_cd; |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
167 uint8_t hint_counter; |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
168 uint8_t flags2; |
413
36fbbced25c2
Initial work on interlace
Mike Pavone <pavone@retrodev.com>
parents:
337
diff
changeset
|
169 uint8_t double_res; |
426
add9e2f5c0e3
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
170 uint8_t b32; |
436
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
171 uint8_t buf_a_off; |
e341fd5aa996
Implement the scroll ring buffer properly without memcpy
Mike Pavone <pavone@retrodev.com>
parents:
426
diff
changeset
|
172 uint8_t buf_b_off; |
437
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
parents:
436
diff
changeset
|
173 uint8_t debug; |
722
8f5339961903
Restore the other 2 debug display modes
Michael Pavone <pavone@retrodev.com>
parents:
717
diff
changeset
|
174 uint8_t debug_pal; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
175 uint8_t *tmp_buf_a; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
176 uint8_t *tmp_buf_b; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
177 } vdp_context; |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
178 |
623
66cc60215e5c
Fix most of the breakage caused by the vcounter/hcounter changes
Michael Pavone <pavone@retrodev.com>
parents:
622
diff
changeset
|
179 void init_vdp_context(vdp_context * context, uint8_t region_pal); |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
722
diff
changeset
|
180 void vdp_free(vdp_context *context); |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
181 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
|
182 //runs from current cycle count to VBLANK for the current mode, returns ending cycle count |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
183 uint32_t vdp_run_to_vblank(vdp_context * context); |
75 | 184 //runs until the target cycle is reached or the current DMA operation has completed, whicever comes first |
185 void vdp_run_dma_done(vdp_context * context, uint32_t target_cycles); | |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
413
diff
changeset
|
186 uint8_t vdp_load_gst(vdp_context * context, FILE * state_file); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
437
diff
changeset
|
187 uint8_t vdp_save_gst(vdp_context * context, FILE * outfile); |
75 | 188 int vdp_control_port_write(vdp_context * context, uint16_t value); |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
138
diff
changeset
|
189 int vdp_data_port_write(vdp_context * context, uint16_t value); |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
190 void vdp_test_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
|
191 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
|
192 uint16_t vdp_data_port_read(vdp_context * context); |
137 | 193 uint16_t vdp_hv_counter_read(vdp_context * context); |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
194 uint16_t vdp_test_port_read(vdp_context * context); |
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:
56
diff
changeset
|
195 void vdp_adjust_cycles(vdp_context * context, uint32_t deduction); |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
196 uint32_t vdp_next_hint(vdp_context * context); |
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
parents:
230
diff
changeset
|
197 uint32_t vdp_next_vint(vdp_context * context); |
333 | 198 uint32_t vdp_next_vint_z80(vdp_context * context); |
953
08346262990b
Remove the int number argument to vdp_int_ack since it is no longer used
Michael Pavone <pavone@retrodev.com>
parents:
922
diff
changeset
|
199 void vdp_int_ack(vdp_context * context); |
322
8e2fa485c0f2
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Mike Pavone <pavone@retrodev.com>
parents:
317
diff
changeset
|
200 void vdp_print_sprite_table(vdp_context * context); |
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
322
diff
changeset
|
201 void vdp_print_reg_explain(vdp_context * context); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
437
diff
changeset
|
202 void latch_mode(vdp_context * context); |
623
66cc60215e5c
Fix most of the breakage caused by the vcounter/hcounter changes
Michael Pavone <pavone@retrodev.com>
parents:
622
diff
changeset
|
203 uint32_t vdp_cycles_to_frame_end(vdp_context * context); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
680
diff
changeset
|
204 uint32_t vdp_frame_end_line(vdp_context *context); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
437
diff
changeset
|
205 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
437
diff
changeset
|
206 extern int32_t color_map[1 << 12]; |
20
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
207 |
f664eeb55cb4
Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
208 #endif //VDP_H_ |