repos/blastem: vdp.h annotate

annotate vdp.h @ 424:7e8e179116af

Add support for loading GST format savestates

author	Mike Pavone <pavone@retrodev.com>
date	Sat, 29 Jun 2013 17:15:08 -0700
parents	36fbbced25c2
children	add9e2f5c0e3

rev	line source
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	1 #ifndef VDP_H_
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	2 #define VDP_H_
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	3
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	4 #include <stdint.h>
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	5 #include <stdio.h>
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	6
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	7 #define VDP_REGS 24
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	8 #define CRAM_SIZE 64
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	9 #define VSRAM_SIZE 40
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	10 #define VRAM_SIZE (64*1024)
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	11 #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	12 #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	13 #define FRAMEBUF_SIZE (FRAMEBUF_ENTRIES*sizeof(uint16_t))
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	14 #define MAX_DRAWS 40
37 cd59519b26d9 Initial H32 mode support Mike Pavone <pavone@retrodev.com> parents: 34 diff changeset	15 #define MAX_DRAWS_H32 32
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	16 #define MAX_SPRITES_LINE 20
37 cd59519b26d9 Initial H32 mode support Mike Pavone <pavone@retrodev.com> parents: 34 diff changeset	17 #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	18 #define MAX_SPRITES_FRAME 80
898e3d035f42 Implement sprite index >= sprite limit triggers sprite limit behavior Mike Pavone <pavone@retrodev.com> parents: 37 diff changeset	19 #define MAX_SPRITES_FRAME_H32 64
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	20
230 d3266cee02c9 Implemented shadow hilight mode. Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	21 #define FBUF_SHADOW 0x0001
d3266cee02c9 Implemented shadow hilight mode. Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	22 #define FBUF_HILIGHT 0x0010
43 3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	23 #define FBUF_BIT_PRIORITY 0x1000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	24 #define FBUF_SRC_MASK 0xE000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	25 #define FBUF_SRC_A 0x0000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	26 #define FBUF_SRC_W 0x2000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	27 #define FBUF_SRC_B 0x4000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	28 #define FBUF_SRC_S 0x6000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	29 #define FBUF_SRC_BG 0x8000
3fc57e1a2c56 Add debug render mode and fix vertical flip bit for bg tiles Mike Pavone <pavone@retrodev.com> parents: 38 diff changeset	30
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	31 #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	32
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	33 #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	34 #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	35 #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	36 #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	37 #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	38 #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	39 #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	40 #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	41
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 FLAG2_VINT_PENDING 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	43 #define FLAG2_HINT_PENDING 0x02
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	44
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	45 #define DISPLAY_ENABLE 0x40
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	46
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	47 enum {
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	48 REG_MODE_1=0,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	49 REG_MODE_2,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	50 REG_SCROLL_A,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	51 REG_WINDOW,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	52 REG_SCROLL_B,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	53 REG_SAT,
337 f8c6f8684cd6 Fix background color regsiter number Mike Pavone <pavone@retrodev.com> parents: 333 diff changeset	54 REG_BG_COLOR=7,
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	55 REG_HINT=0xA,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	56 REG_MODE_3,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	57 REG_MODE_4,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	58 REG_HSCROLL,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	59 REG_AUTOINC=0xF,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	60 REG_SCROLL,
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 REG_WINDOW_H,
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	62 REG_WINDOW_V,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	63 REG_DMALEN_L,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	64 REG_DMALEN_H,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	65 REG_DMASRC_L,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	66 REG_DMASRC_M,
108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	67 REG_DMASRC_H
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	68 } vdp_regs;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	69
413 36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	70 //Mode reg 1
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	71 #define BIT_HINT_EN 0x10
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	72 #define BIT_PAL_SEL 0x04
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	73 #define BIT_HVC_LATCH 0x02
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	74 #define BIT_DISP_DIS 0x01
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	75
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	76 //Mode reg 2
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	77 #define BIT_DISP_EN 0x40
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	78 #define BIT_VINT_EN 0x20
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	79 #define BIT_DMA_ENABLE 0x10
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	80 #define BIT_PAL 0x08
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	81 #define BIT_MODE_5 0x04
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	82
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	83 //Mode reg 3
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	84 #define BIT_EINT_EN 0x10
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	85 #define BIT_VSCROLL 0x04
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	86
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	87 //Mode reg 4
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	88 #define BIT_H40 0x01
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	89 #define BIT_HILIGHT 0x8
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	90 #define BIT_DOUBLE_RES 0x4
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	91 #define BIT_INTERLACE 0x2
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	92
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	93 typedef struct {
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	94 uint16_t address;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	95 int16_t x_pos;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	96 uint8_t pal_priority;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	97 uint8_t h_flip;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	98 } sprite_draw;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	99
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	100 typedef struct {
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	101 uint8_t size;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	102 uint8_t index;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	103 int16_t y;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	104 } sprite_info;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	105
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	106 typedef struct {
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	107 uint32_t cycle;
138 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	108 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	109 uint16_t value;
138 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	110 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	111 uint8_t partial;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	112 } fifo_entry;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	113
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	114 typedef struct {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	115 fifo_entry *fifo_cur;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	116 fifo_entry *fifo_end;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	117 uint16_t address;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 43 diff changeset	118 uint8_t cd;
56 a28b1dfe1af2 Fix CRAM and possibly VSRAM writes Mike Pavone <pavone@retrodev.com> parents: 54 diff changeset	119 uint8_t flags;
138 aa3e1bb338c9 Fix VDP reads Mike Pavone <pavone@retrodev.com> parents: 137 diff changeset	120 uint8_t regs[VDP_REGS];
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	121 //cycle count in MCLKs
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	122 uint32_t cycles;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	123 uint8_t *vdpmem;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	124 //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	125 uint8_t *linebuf;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	126 //stores 12-bit color + shadow/highlight bits
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	127 uint16_t *framebuf;
413 36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	128 uint16_t *oddbuf;
36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	129 uint16_t *evenbuf;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	130 uint16_t cram[CRAM_SIZE];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	131 uint16_t vsram[VSRAM_SIZE];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	132 uint8_t latched_mode;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	133 uint16_t hscroll_a;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	134 uint16_t hscroll_b;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	135 uint8_t sprite_index;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	136 uint8_t sprite_draws;
21 72ce60cb1711 Sprites somewhat less broken Mike Pavone <pavone@retrodev.com> parents: 20 diff changeset	137 int8_t slot_counter;
72ce60cb1711 Sprites somewhat less broken Mike Pavone <pavone@retrodev.com> parents: 20 diff changeset	138 int8_t cur_slot;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	139 sprite_draw sprite_draw_list[MAX_DRAWS];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	140 sprite_info sprite_info_list[MAX_SPRITES_LINE];
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	141 uint16_t col_1;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	142 uint16_t col_2;
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	143 uint16_t dma_val;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	144 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	145 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	146 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	147 uint8_t flags2;
413 36fbbced25c2 Initial work on interlace Mike Pavone <pavone@retrodev.com> parents: 337 diff changeset	148 uint8_t double_res;
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	149 uint8_t *tmp_buf_a;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	150 uint8_t *tmp_buf_b;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	151 } vdp_context;
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	152
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	153 void init_vdp_context(vdp_context * context);
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	154 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	155 //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	156 uint32_t vdp_run_to_vblank(vdp_context * context);
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	157 //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	158 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	159 uint8_t vdp_load_gst(vdp_context * context, FILE * state_file);
56 a28b1dfe1af2 Fix CRAM and possibly VSRAM writes Mike Pavone <pavone@retrodev.com> parents: 54 diff changeset	160 void vdp_save_state(vdp_context * context, FILE * outfile);
75 108e587165c0 Implement DMA (untested) Mike Pavone <pavone@retrodev.com> parents: 65 diff changeset	161 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	162 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	163 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	164 uint16_t vdp_data_port_read(vdp_context * context);
137 0e7e1ccc0a81 Implemented HV counter Mike Pavone <pavone@retrodev.com> parents: 131 diff changeset	165 uint16_t vdp_hv_counter_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	166 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	167 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	168 uint32_t vdp_next_vint(vdp_context * context);
333 f16136a3835d Update Z80 vint timing Mike Pavone <pavone@retrodev.com> parents: 327 diff changeset	169 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	170 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	171 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	172 void vdp_print_reg_explain(vdp_context * context);
20 f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	173
f664eeb55cb4 Mostly broken VDP core and savestate viewer Mike Pavone <pavone@retrodev.com> parents: diff changeset	174 #endif //VDP_H_

Mercurial > repos > blastem

annotate vdp.h @ 424:7e8e179116af