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annotate vdp.h @ 1702:73ac2e59fa3f

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Implemented sbc instruction in CPU DSL
author Michael Pavone <pavone@retrodev.com>
date Sun, 27 Jan 2019 14:37:37 -0800
parents d0a69348add8
children 4f3443ecb6d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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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.
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5 */
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6 #ifndef VDP_H_
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7 #define VDP_H_
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8
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9 #include <stdint.h>
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10 #include <stdio.h>
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11 #include "system.h"
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12 #include "serialize.h"
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13
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14 #define VDP_REGS 24
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15 #define CRAM_SIZE 64
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16 #define SHADOW_OFFSET CRAM_SIZE
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17 #define HIGHLIGHT_OFFSET (SHADOW_OFFSET+CRAM_SIZE)
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18 #define MODE4_OFFSET (HIGHLIGHT_OFFSET+CRAM_SIZE)
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19 #define VSRAM_SIZE 40
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20 #define VRAM_SIZE (64*1024)
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21 #define BORDER_LEFT 13
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22 #define BORDER_RIGHT 14
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23 #define HORIZ_BORDER (BORDER_LEFT+BORDER_RIGHT)
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24 #define LINEBUF_SIZE (320+HORIZ_BORDER) //H40 + full border
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25 #define SCROLL_BUFFER_SIZE 32
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26 #define BORDER_BOTTOM 13 //TODO: Replace with actual value
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27 #define MAX_DRAWS 40
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28 #define MAX_DRAWS_H32 32
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29 #define MAX_DRAWS_H32_MODE4 8
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30 #define MAX_SPRITES_LINE 20
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31 #define MAX_SPRITES_LINE_H32 16
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32 #define MAX_SPRITES_FRAME 80
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33 #define MAX_SPRITES_FRAME_H32 64
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34 #define SAT_CACHE_SIZE (MAX_SPRITES_FRAME * 4)
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35
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36 #define FBUF_SHADOW 0x0001
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37 #define FBUF_HILIGHT 0x0010
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38 #define FBUF_MODE4 0x0100
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39 #define DBG_SHADOW 0x10
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40 #define DBG_HILIGHT 0x20
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41 #define DBG_PRIORITY 0x8
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42 #define DBG_SRC_MASK 0x7
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43 #define DBG_SRC_A 0x1
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44 #define DBG_SRC_W 0x2
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45 #define DBG_SRC_B 0x3
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46 #define DBG_SRC_S 0x4
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47 #define DBG_SRC_BG 0x0
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48
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49 #define MCLKS_LINE 3420
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50
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51 #define FLAG_DOT_OFLOW 0x01
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52 #define FLAG_CAN_MASK 0x02
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53 #define FLAG_MASKED 0x04
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54 #define FLAG_WINDOW 0x08
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55 #define FLAG_PENDING 0x10
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56 #define FLAG_READ_FETCHED 0x20
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57 #define FLAG_DMA_RUN 0x40
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58 #define FLAG_DMA_PROG 0x80
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59
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60 #define FLAG2_VINT_PENDING 0x01
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61 #define FLAG2_HINT_PENDING 0x02
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62 #define FLAG2_READ_PENDING 0x04
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63 #define FLAG2_SPRITE_COLLIDE 0x08
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64 #define FLAG2_REGION_PAL 0x10
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65 #define FLAG2_EVEN_FIELD 0x20
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66 #define FLAG2_BYTE_PENDING 0x40
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67 #define FLAG2_PAUSE 0x80
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68
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69 #define DISPLAY_ENABLE 0x40
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70
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71 enum {
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72 REG_MODE_1=0,
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73 REG_MODE_2,
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74 REG_SCROLL_A,
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75 REG_WINDOW,
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76 REG_SCROLL_B,
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77 REG_SAT,
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78 REG_STILE_BASE,
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79 REG_BG_COLOR,
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80 REG_X_SCROLL,
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81 REG_Y_SCROLL,
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82 REG_HINT,
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83 REG_MODE_3,
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84 REG_MODE_4,
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85 REG_HSCROLL,
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86 REG_BGTILE_BASE,
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87 REG_AUTOINC,
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88 REG_SCROLL,
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89 REG_WINDOW_H,
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90 REG_WINDOW_V,
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91 REG_DMALEN_L,
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92 REG_DMALEN_H,
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93 REG_DMASRC_L,
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94 REG_DMASRC_M,
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95 REG_DMASRC_H
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96 } vdp_regs;
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97
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98 //Mode reg 1
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99 #define BIT_VSCRL_LOCK 0x80
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100 #define BIT_HSCRL_LOCK 0x40
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101 #define BIT_COL0_MASK 0x20
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102 #define BIT_HINT_EN 0x10
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103 #define BIT_SPRITE_8PX 0x08
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104 #define BIT_PAL_SEL 0x04
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105 #define BIT_MODE_4 BIT_PAL_SEL
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106 #define BIT_HVC_LATCH 0x02
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107 #define BIT_DISP_DIS 0x01
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108
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109 //Mode reg 2
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110 #define BIT_128K_VRAM 0x80
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111 #define BIT_DISP_EN 0x40
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112 #define BIT_VINT_EN 0x20
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113 #define BIT_DMA_ENABLE 0x10
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114 #define BIT_PAL 0x08
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115 #define BIT_MODE_5 0x04
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116 #define BIT_SPRITE_SZ 0x02
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117
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118 //Mode reg 3
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119 #define BIT_EINT_EN 0x10
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120 #define BIT_VSCROLL 0x04
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121
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122 //Mode reg 4
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123 #define BIT_H40 0x01
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124 #define BIT_HILIGHT 0x8
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125 #define BIT_DOUBLE_RES 0x4
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126 #define BIT_INTERLACE 0x2
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127
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128 //Test register
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129 #define TEST_BIT_DISABLE 0x40
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130
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131 typedef struct {
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132 uint16_t address;
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133 int16_t x_pos;
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134 uint8_t pal_priority;
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parents:
diff changeset
135 uint8_t h_flip;
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parents:
diff changeset
136 } sprite_draw;
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parents:
diff changeset
137
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parents:
diff changeset
138 typedef struct {
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parents:
diff changeset
139 uint8_t size;
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parents:
diff changeset
140 uint8_t index;
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parents:
diff changeset
141 int16_t y;
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parents:
diff changeset
142 } sprite_info;
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parents:
diff changeset
143
471
f065769836e8 Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
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parents: 470
diff changeset
144 #define FIFO_SIZE 4
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parents: 470
diff changeset
145
20
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diff changeset
146 typedef struct {
54
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working
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parents: 43
diff changeset
147 uint32_t cycle;
1318
bfdd450e7dea Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
Michael Pavone <pavone@retrodev.com>
parents: 1267
diff changeset
148 uint32_t address;
54
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working
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parents: 43
diff changeset
149 uint16_t value;
138
aa3e1bb338c9 Fix VDP reads
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parents: 137
diff changeset
150 uint8_t cd;
54
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working
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parents: 43
diff changeset
151 uint8_t partial;
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parents: 43
diff changeset
152 } fifo_entry;
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parents: 43
diff changeset
153
1631
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diff changeset
154 enum {
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diff changeset
155 VDP_DEBUG_PLANE,
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diff changeset
156 VDP_DEBUG_VRAM,
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diff changeset
157 VDP_DEBUG_CRAM,
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diff changeset
158 VDP_DEBUG_COMPOSITE,
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diff changeset
159 VDP_NUM_DEBUG_TYPES
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diff changeset
160 };
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parents: 1629
diff changeset
161
54
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diff changeset
162 typedef struct {
1640
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diff changeset
163 system_header *system;
1077
1a66d5165ea7 Cleanup the separation of render backend and VDP code in preparation for having extra debug windows. Make determination of H40/H32 based on number of lines in each mode.
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parents: 1019
diff changeset
164 //pointer to current line in framebuffer
1640
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165 uint32_t *output;
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diff changeset
166 uint32_t *done_output;
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diff changeset
167 //pointer to current framebuffer
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diff changeset
168 uint32_t *fb;
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parents: 1638
diff changeset
169 uint32_t *debug_fbs[VDP_NUM_DEBUG_TYPES];
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diff changeset
170 uint32_t output_pitch;
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parents: 1638
diff changeset
171 uint32_t debug_fb_pitch[VDP_NUM_DEBUG_TYPES];
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diff changeset
172 fifo_entry fifo[FIFO_SIZE];
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parents: 1638
diff changeset
173 int32_t fifo_write;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
174 int32_t fifo_read;
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parents: 1638
diff changeset
175 uint32_t address;
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parents: 1638
diff changeset
176 uint32_t serial_address;
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parents: 1638
diff changeset
177 uint32_t colors[CRAM_SIZE*4];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
178 uint32_t debugcolors[1 << (3 + 1 + 1 + 1)];//3 bits for source, 1 bit for priority, 1 bit for shadow, 1 bit for hilight
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
179 uint16_t cram[CRAM_SIZE];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
180 uint32_t frame;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
181 uint8_t cd;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
182 uint8_t flags;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
183 uint8_t regs[VDP_REGS];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
184 //cycle count in MCLKs
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parents: 1638
diff changeset
185 uint32_t cycles;
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parents: 1638
diff changeset
186 uint32_t pending_vint_start;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
187 uint32_t pending_hint_start;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
188 uint16_t vsram[VSRAM_SIZE];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
189 uint16_t vscroll_latch[2];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
190 uint16_t vcounter;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
191 uint16_t inactive_start;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
192 uint16_t border_top;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
193 uint16_t border_bot;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
194 uint16_t hscroll_a;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
195 uint16_t hscroll_b;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
196 uint16_t h40_lines;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
197 uint16_t output_lines;
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parents: 1638
diff changeset
198 sprite_draw sprite_draw_list[MAX_DRAWS];
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parents: 1638
diff changeset
199 sprite_info sprite_info_list[MAX_SPRITES_LINE];
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parents: 1638
diff changeset
200 uint8_t sat_cache[SAT_CACHE_SIZE];
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parents: 1638
diff changeset
201 uint16_t col_1;
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parents: 1638
diff changeset
202 uint16_t col_2;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
203 uint16_t hv_latch;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
204 uint16_t prefetch;
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parents: 1638
diff changeset
205 uint16_t test_port;
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parents: 1638
diff changeset
206 //stores 2-bit palette + 4-bit palette index + priority for current sprite line
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parents: 1638
diff changeset
207 uint8_t linebuf[LINEBUF_SIZE];
1641
bc9bb4e5856f Basic version of layer compositing debug view in a separate window
Michael Pavone <pavone@retrodev.com>
parents: 1640
diff changeset
208 uint8_t layer_debug_buf[LINEBUF_SIZE];
1640
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
209 uint8_t hslot; //hcounter/2
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parents: 1638
diff changeset
210 uint8_t sprite_index;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
211 uint8_t sprite_draws;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
212 int8_t slot_counter;
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Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
213 int8_t cur_slot;
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parents: 1638
diff changeset
214 uint8_t max_sprites_frame;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
215 uint8_t max_sprites_line;
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parents: 1638
diff changeset
216 uint8_t fetch_tmp[2];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
217 uint8_t v_offset;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
218 uint8_t hint_counter;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
219 uint8_t flags2;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
220 uint8_t double_res;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
221 uint8_t buf_a_off;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
222 uint8_t buf_b_off;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
223 uint8_t pending_byte;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
224 uint8_t state;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
225 uint8_t cur_buffer;
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parents: 1638
diff changeset
226 uint8_t tmp_buf_a[SCROLL_BUFFER_SIZE];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
227 uint8_t tmp_buf_b[SCROLL_BUFFER_SIZE];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
Michael Pavone <pavone@retrodev.com>
parents: 1638
diff changeset
228 uint8_t enabled_debuggers;
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
229 uint8_t debug_fb_indices[VDP_NUM_DEBUG_TYPES];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
230 uint8_t debug_modes[VDP_NUM_DEBUG_TYPES];
3602f3b20072 Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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parents: 1638
diff changeset
231 uint8_t vdpmem[];
20
f664eeb55cb4 Mostly broken VDP core and savestate viewer
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parents:
diff changeset
232 } vdp_context;
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parents:
diff changeset
233
1631
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parents: 1629
diff changeset
234
c4ba3177b72d WIP new VDP plane debug view and support for detached VDP debug views generally
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parents: 1629
diff changeset
235
1640
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parents: 1638
diff changeset
236 vdp_context *init_vdp_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
237 void vdp_free(vdp_context *context);
1371
5b20840711c1 Remove HINT_FUDGE and make a small adjustment to how VDP syncs with rest of system instead. Worse results on CRAM dot issue, but much less of a hack
Michael Pavone <pavone@retrodev.com>
parents: 1343
diff changeset
238 void vdp_run_context_full(vdp_context * context, uint32_t target_cycles);
20
f664eeb55cb4 Mostly broken VDP core and savestate viewer
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parents:
diff changeset
239 void vdp_run_context(vdp_context * context, uint32_t target_cycles);
f664eeb55cb4 Mostly broken VDP core and savestate viewer
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parents:
diff changeset
240 //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
241 uint32_t vdp_run_to_vblank(vdp_context * context);
75
108e587165c0 Implement DMA (untested)
Mike Pavone <pavone@retrodev.com>
parents: 65
diff changeset
242 //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
243 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
244 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
245 uint8_t vdp_save_gst(vdp_context * context, FILE * outfile);
75
108e587165c0 Implement DMA (untested)
Mike Pavone <pavone@retrodev.com>
parents: 65
diff changeset
246 int vdp_control_port_write(vdp_context * context, uint16_t value);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1102
diff changeset
247 void vdp_control_port_write_pbc(vdp_context * context, uint8_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
248 int vdp_data_port_write(vdp_context * context, uint16_t value);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1102
diff changeset
249 void vdp_data_port_write_pbc(vdp_context * context, uint8_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
250 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
251 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
252 uint16_t vdp_data_port_read(vdp_context * context);
1149
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1135
diff changeset
253 uint8_t vdp_data_port_read_pbc(vdp_context * context);
1154
c83ec07ddbac Implemented Mode 4 H conter latching
Michael Pavone <pavone@retrodev.com>
parents: 1149
diff changeset
254 void vdp_latch_hv(vdp_context *context);
137
0e7e1ccc0a81 Implemented HV counter
Mike Pavone <pavone@retrodev.com>
parents: 131
diff changeset
255 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
256 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
257 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
258 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
259 uint32_t vdp_next_vint(vdp_context * context);
333
f16136a3835d Update Z80 vint timing
Mike Pavone <pavone@retrodev.com>
parents: 327
diff changeset
260 uint32_t vdp_next_vint_z80(vdp_context * context);
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
261 uint32_t vdp_next_nmi(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
262 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
263 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
264 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
265 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
266 uint32_t vdp_cycles_to_frame_end(vdp_context * context);
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
267 void write_cram_internal(vdp_context * context, uint16_t addr, uint16_t value);
1333
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1325
diff changeset
268 void vdp_check_update_sat_byte(vdp_context *context, uint32_t address, uint8_t value);
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
269 void vdp_pbc_pause(vdp_context *context);
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
270 void vdp_release_framebuffer(vdp_context *context);
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
271 void vdp_reacquire_framebuffer(vdp_context *context);
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
272 void vdp_serialize(vdp_context *context, serialize_buffer *buf);
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
273 void vdp_deserialize(deserialize_buffer *buf, void *vcontext);
1629
079e5b9d59ce Forcefully update the display when entering the 68K debugger so you can see it update in realtime as you step through the code
Michael Pavone <pavone@retrodev.com>
parents: 1436
diff changeset
274 void vdp_force_update_framebuffer(vdp_context *context);
1631
c4ba3177b72d WIP new VDP plane debug view and support for detached VDP debug views generally
Michael Pavone <pavone@retrodev.com>
parents: 1629
diff changeset
275 void vdp_toggle_debug_view(vdp_context *context, uint8_t debug_type);
c4ba3177b72d WIP new VDP plane debug view and support for detached VDP debug views generally
Michael Pavone <pavone@retrodev.com>
parents: 1629
diff changeset
276 void vdp_inc_debug_mode(vdp_context *context);
1649
b500e971da75 Allow closing VDP debug windows with the close button in the window title bar
Michael Pavone <pavone@retrodev.com>
parents: 1643
diff changeset
277 //to be implemented by the host system
b500e971da75 Allow closing VDP debug windows with the close button in the window title bar
Michael Pavone <pavone@retrodev.com>
parents: 1643
diff changeset
278 uint16_t read_dma_value(uint32_t address);
451
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents: 437
diff changeset
279
20
f664eeb55cb4 Mostly broken VDP core and savestate viewer
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280 #endif //VDP_H_