repos/blastem: vdp.h annotate

annotate vdp.h @ 651:103d5cabbe14

Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.

author	Michael Pavone <pavone@retrodev.com>
date	Tue, 16 Dec 2014 01:10:54 -0800
parents	66cc60215e5c
children	4996369f1463

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 cd59519b26d9 Initial H32 mode support Mike Pavone <pavone@retrodev.com> parents: 34 diff changeset	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 cd59519b26d9 Initial H32 mode support Mike Pavone <pavone@retrodev.com> parents: 34 diff changeset	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
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	44 #define FLAG_UNUSED_SLOT 0x20
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 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	53
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	54 #define DISPLAY_ENABLE 0x40
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	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 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	71 REG_WINDOW_V,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	72 REG_DMALEN_L,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	73 REG_DMALEN_H,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	74 REG_DMASRC_L,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	75 REG_DMASRC_M,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	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 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	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 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	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 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	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;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	135 uint8_t *vdpmem;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	136 //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	137 uint8_t *linebuf;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	138 //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	139 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	140 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	141 void *evenbuf;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	142 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	143 uint32_t colors[CRAM_SIZE*3];
437 afbea09d7fb4 Restore one of the VDP debugging modes Mike Pavone <pavone@retrodev.com> parents: 436 diff changeset	144 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	145 uint16_t vsram[VSRAM_SIZE];
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	146 uint16_t vcounter;
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	147 uint16_t hslot; //hcounter/2
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	148 uint16_t hscroll_a;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	149 uint16_t hscroll_b;
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 uint8_t latched_mode;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	151 uint8_t sprite_index;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	152 uint8_t sprite_draws;
21 72ce60cb1711 Sprites somewhat less broken Mike Pavone <pavone@retrodev.com> parents: 20 diff changeset	153 int8_t slot_counter;
72ce60cb1711 Sprites somewhat less broken Mike Pavone <pavone@retrodev.com> parents: 20 diff changeset	154 int8_t cur_slot;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	155 sprite_draw sprite_draw_list[MAX_DRAWS];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	156 sprite_info sprite_info_list[MAX_SPRITES_LINE];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	157 uint16_t col_1;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	158 uint16_t col_2;
480 0737953132ad Implement HV counter latch Mike Pavone <pavone@retrodev.com> parents: 478 diff changeset	159 uint16_t hv_latch;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	160 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	161 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	162 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	163 uint8_t flags2;
413 36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	164 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	165 uint8_t b32;
436 e341fd5aa996 Implement the scroll ring buffer properly without memcpy Mike Pavone <pavone@retrodev.com> parents: 426 diff changeset	166 uint8_t buf_a_off;
e341fd5aa996 Implement the scroll ring buffer properly without memcpy Mike Pavone <pavone@retrodev.com> parents: 426 diff changeset	167 uint8_t buf_b_off;
437 afbea09d7fb4 Restore one of the VDP debugging modes Mike Pavone <pavone@retrodev.com> parents: 436 diff changeset	168 uint8_t debug;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	169 uint8_t *tmp_buf_a;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	170 uint8_t *tmp_buf_b;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	171 } vdp_context;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	172
623 66cc60215e5c Fix most of the breakage caused by the vcounter/hcounter changes Michael Pavone <pavone@retrodev.com> parents: 622 diff changeset	173 void init_vdp_context(vdp_context * context, uint8_t region_pal);
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	174 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	175 //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	176 uint32_t vdp_run_to_vblank(vdp_context * context);
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	177 //runs until the target cycle is reached or the current DMA operation has completed, whicever comes first
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	178 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	179 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	180 uint8_t vdp_save_gst(vdp_context * context, FILE * outfile);
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	181 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	182 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	183 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	184 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	185 uint16_t vdp_data_port_read(vdp_context * context);
137 0e7e1ccc0a81 Implemented HV counter Mike Pavone <pavone@retrodev.com> parents: 131 diff changeset	186 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	187 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	188 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	189 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	190 uint32_t vdp_next_vint(vdp_context * context);
333 f16136a3835d Update Z80 vint timing Mike Pavone <pavone@retrodev.com> parents: 327 diff changeset	191 uint32_t vdp_next_vint_z80(vdp_context * context);
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	192 void vdp_int_ack(vdp_context * context, uint16_t int_num);
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	193 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	194 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	195 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	196 uint32_t vdp_cycles_to_frame_end(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	197
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 437 diff changeset	198 extern int32_t color_map[1 << 12];
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	199
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	200 #endif //VDP_H_

Mercurial > repos > blastem

annotate vdp.h @ 651:103d5cabbe14