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annotate blastem.c @ 230:d3266cee02c9

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Implemented shadow hilight mode.
author Mike Pavone <pavone@retrodev.com>
date Mon, 22 Apr 2013 19:39:38 -0700
parents 2b1c2c28b261
children 625f8e4d5fd2
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1 #include "68kinst.h"
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2 #include "m68k_to_x86.h"
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3 #include "mem.h"
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4 #include "vdp.h"
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5 #include "render.h"
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6 #include "blastem.h"
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10
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11 #define CARTRIDGE_WORDS 0x200000
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12 #define RAM_WORDS 32 * 1024
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13 #define Z80_RAM_BYTES 8 * 1024
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14 #define MCLKS_PER_68K 7
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15 //TODO: Figure out the exact value for this
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16 #define MCLKS_PER_FRAME (MCLKS_LINE*262)
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17 #define CYCLE_NEVER 0xFFFFFFFF
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18
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19 uint16_t cart[CARTRIDGE_WORDS];
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20 uint16_t ram[RAM_WORDS];
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21 uint8_t z80_ram[Z80_RAM_BYTES];
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23 io_port gamepad_1;
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24 io_port gamepad_2;
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25
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26 int headless = 0;
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27
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28 #ifndef MIN
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29 #define MIN(a,b) ((a) < (b) ? (a) : (b))
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30 #endif
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31
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32 #define SMD_HEADER_SIZE 512
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33 #define SMD_MAGIC1 0x03
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34 #define SMD_MAGIC2 0xAA
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35 #define SMD_MAGIC3 0xBB
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36 #define SMD_BLOCK_SIZE 0x4000
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37
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38 int load_smd_rom(long filesize, FILE * f)
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39 {
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40 uint8_t block[SMD_BLOCK_SIZE];
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41 filesize -= SMD_HEADER_SIZE;
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42 fseek(f, SMD_HEADER_SIZE, SEEK_SET);
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43
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44 uint16_t * dst = cart;
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45 while (filesize > 0) {
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46 fread(block, 1, SMD_BLOCK_SIZE, f);
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47 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) {
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48 *(dst++) = *high << 8 | *low;
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49 }
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50 filesize -= SMD_BLOCK_SIZE;
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51 }
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52 return 1;
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53 }
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54
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55 int load_rom(char * filename)
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56 {
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57 uint8_t header[10];
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58 FILE * f = fopen(filename, "rb");
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59 if (!f) {
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60 return 0;
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61 }
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62 fread(header, 1, sizeof(header), f);
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63 fseek(f, 0, SEEK_END);
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64 long filesize = ftell(f);
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65 if (filesize/2 > CARTRIDGE_WORDS) {
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66 //carts bigger than 4MB not currently supported
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67 filesize = CARTRIDGE_WORDS*2;
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68 }
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69 fseek(f, 0, SEEK_SET);
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70 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) {
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71 int i;
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72 for (i = 3; i < 8; i++) {
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73 if (header[i] != 0) {
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74 break;
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75 }
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76 }
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77 if (i == 8) {
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78 if (header[2]) {
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79 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename);
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80 exit(1);
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81 }
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82 return load_smd_rom(filesize, f);
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83 }
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84 }
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85 fread(cart, 2, filesize/2, f);
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86 fclose(f);
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87 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur)
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88 {
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89 *cur = (*cur >> 8) | (*cur << 8);
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90 }
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91 //TODO: Mirror ROM
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92 return 1;
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93 }
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94
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95 uint16_t read_dma_value(uint32_t address)
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96 {
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97 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2
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98 if (address < 0x200000) {
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99 return cart[address];
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100 } else if(address >= 0x700000) {
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101 return ram[address & 0x7FFF];
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102 }
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103 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
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104 return 0;
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105 }
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106
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107 #define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K)
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108
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109 void adjust_int_cycle(m68k_context * context, vdp_context * v_context)
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110 {
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111 if (!(v_context->regs[REG_MODE_2] & 0x20 && ((context->status & 0x7) < 6)) || context->current_cycle >= VINT_CYCLE) {
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112 context->int_cycle = CYCLE_NEVER;
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113 context->target_cycle = context->sync_cycle;
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114 } else if (context->int_cycle > VINT_CYCLE) {
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115 context->int_cycle = VINT_CYCLE;
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116 context->int_num = 6;
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117 if (context->int_cycle < context->sync_cycle) {
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118 context->target_cycle = context->int_cycle;
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119 }
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120 }
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121 }
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122
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123 int break_on_sync = 0;
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124
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125 m68k_context * sync_components(m68k_context * context, uint32_t address)
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126 {
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127 //TODO: Handle sync targets smaller than a single frame
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128 vdp_context * v_context = context->next_context;
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129 uint32_t mclks = context->current_cycle * MCLKS_PER_68K;
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130 if (mclks >= MCLKS_PER_FRAME) {
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131 //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks);
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132 vdp_run_context(v_context, MCLKS_PER_FRAME);
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133 if (!headless) {
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134 break_on_sync |= wait_render_frame(v_context);
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135 }
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136 mclks -= MCLKS_PER_FRAME;
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137 vdp_adjust_cycles(v_context, MCLKS_PER_FRAME);
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138 io_adjust_cycles(&gamepad_1, context->current_cycle, MCLKS_PER_FRAME/MCLKS_PER_68K);
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parents:
diff changeset
139 io_adjust_cycles(&gamepad_2, context->current_cycle, MCLKS_PER_FRAME/MCLKS_PER_68K);
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parents:
diff changeset
140 context->current_cycle -= MCLKS_PER_FRAME/MCLKS_PER_68K;
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parents:
diff changeset
141 if (mclks) {
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parents:
diff changeset
142 vdp_run_context(v_context, mclks);
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parents:
diff changeset
143 }
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parents:
diff changeset
144 } else {
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parents:
diff changeset
145 //printf("running VDP for %d cycles\n", mclks - v_context->cycles);
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parents:
diff changeset
146 vdp_run_context(v_context, mclks);
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parents:
diff changeset
147 }
186
02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Mike Pavone <pavone@retrodev.com>
parents: 185
diff changeset
148 adjust_int_cycle(context, v_context);
198
209a37eed3e7 Add support for breaking into the debugger while game is running
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parents: 197
diff changeset
149 if (break_on_sync && address) {
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parents: 197
diff changeset
150 break_on_sync = 0;
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parents: 197
diff changeset
151 debugger(context, address);
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parents: 197
diff changeset
152 }
88
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diff changeset
153 return context;
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parents:
diff changeset
154 }
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diff changeset
155
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diff changeset
156 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value)
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diff changeset
157 {
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diff changeset
158 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle);
198
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parents: 197
diff changeset
159 sync_components(context, 0);
88
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diff changeset
160 vdp_context * v_context = context->next_context;
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parents:
diff changeset
161 if (vdp_port < 0x10) {
149
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
162 int blocked;
88
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diff changeset
163 if (vdp_port < 4) {
149
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
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parents: 144
diff changeset
164 while (vdp_data_port_write(v_context, value) < 0) {
88
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diff changeset
165 while(v_context->flags & FLAG_DMA_RUN) {
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parents:
diff changeset
166 vdp_run_dma_done(v_context, MCLKS_PER_FRAME);
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parents:
diff changeset
167 if (v_context->cycles >= MCLKS_PER_FRAME) {
215
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
168 if (!headless) {
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
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parents: 211
diff changeset
169 wait_render_frame(v_context);
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
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parents: 211
diff changeset
170 }
88
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diff changeset
171 vdp_adjust_cycles(v_context, MCLKS_PER_FRAME);
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172 io_adjust_cycles(&gamepad_1, v_context->cycles/MCLKS_PER_68K, MCLKS_PER_FRAME/MCLKS_PER_68K);
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diff changeset
173 io_adjust_cycles(&gamepad_2, v_context->cycles/MCLKS_PER_68K, MCLKS_PER_FRAME/MCLKS_PER_68K);
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parents:
diff changeset
174 }
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parents:
diff changeset
175 }
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parents:
diff changeset
176 context->current_cycle = v_context->cycles / MCLKS_PER_68K;
149
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
177 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
178 } else if(vdp_port < 8) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
179 blocked = vdp_control_port_write(v_context, value);
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parents: 144
diff changeset
180 if (blocked) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
181 while (blocked) {
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Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
182 while(v_context->flags & FLAG_DMA_RUN) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
183 vdp_run_dma_done(v_context, MCLKS_PER_FRAME);
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
184 if (v_context->cycles >= MCLKS_PER_FRAME) {
215
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
185 if (!headless) {
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
186 wait_render_frame(v_context);
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
187 }
149
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
188 vdp_adjust_cycles(v_context, MCLKS_PER_FRAME);
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
189 io_adjust_cycles(&gamepad_1, v_context->cycles/MCLKS_PER_68K, MCLKS_PER_FRAME/MCLKS_PER_68K);
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parents: 144
diff changeset
190 io_adjust_cycles(&gamepad_2, v_context->cycles/MCLKS_PER_68K, MCLKS_PER_FRAME/MCLKS_PER_68K);
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Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
191 }
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Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
192 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
193 if (blocked < 0) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
194 blocked = vdp_control_port_write(v_context, value);
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Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
195 } else {
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parents: 144
diff changeset
196 blocked = 0;
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
197 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
198 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
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parents: 144
diff changeset
199 context->current_cycle = v_context->cycles / MCLKS_PER_68K;
88
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parents:
diff changeset
200 } else {
186
02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Mike Pavone <pavone@retrodev.com>
parents: 185
diff changeset
201 adjust_int_cycle(context, v_context);
88
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parents:
diff changeset
202 }
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parents:
diff changeset
203 } else {
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diff changeset
204 printf("Illegal write to HV Counter port %X\n", vdp_port);
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parents:
diff changeset
205 exit(1);
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parents:
diff changeset
206 }
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diff changeset
207 context->current_cycle = v_context->cycles/MCLKS_PER_68K;
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parents:
diff changeset
208 } else if (vdp_port < 0x18) {
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parents:
diff changeset
209 //TODO: Implement PSG
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parents:
diff changeset
210 } else {
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parents:
diff changeset
211 //TODO: Implement undocumented test register(s)
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parents:
diff changeset
212 }
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parents:
diff changeset
213 return context;
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parents:
diff changeset
214 }
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parents:
diff changeset
215
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parents:
diff changeset
216 m68k_context * vdp_port_read(uint32_t vdp_port, m68k_context * context)
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parents:
diff changeset
217 {
198
209a37eed3e7 Add support for breaking into the debugger while game is running
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parents: 197
diff changeset
218 sync_components(context, 0);
88
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parents:
diff changeset
219 vdp_context * v_context = context->next_context;
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parents:
diff changeset
220 if (vdp_port < 0x10) {
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parents:
diff changeset
221 if (vdp_port < 4) {
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parents:
diff changeset
222 context->value = vdp_data_port_read(v_context);
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parents:
diff changeset
223 } else if(vdp_port < 8) {
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parents:
diff changeset
224 context->value = vdp_control_port_read(v_context);
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parents:
diff changeset
225 } else {
137
0e7e1ccc0a81 Implemented HV counter
Mike Pavone <pavone@retrodev.com>
parents: 130
diff changeset
226 context->value = vdp_hv_counter_read(v_context);
0e7e1ccc0a81 Implemented HV counter
Mike Pavone <pavone@retrodev.com>
parents: 130
diff changeset
227 //printf("HV Counter: %X at cycle %d\n", context->value, v_context->cycles);
88
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parents:
diff changeset
228 }
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parents:
diff changeset
229 context->current_cycle = v_context->cycles/MCLKS_PER_68K;
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parents:
diff changeset
230 } else {
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parents:
diff changeset
231 printf("Illegal read from PSG or test register port %X\n", vdp_port);
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parents:
diff changeset
232 exit(1);
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parents:
diff changeset
233 }
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parents:
diff changeset
234 return context;
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parents:
diff changeset
235 }
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parents:
diff changeset
236
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parents:
diff changeset
237 #define TH 0x40
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parents:
diff changeset
238 #define TH_TIMEOUT 8000
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parents:
diff changeset
239 #define Z80_ACK_DELAY 3 //TODO: Calculate this on the fly based on how synced up the Z80 and 68K clocks are
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parents:
diff changeset
240
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parents:
diff changeset
241 uint8_t reset = 1;
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parents:
diff changeset
242 uint8_t busreq = 0;
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parents:
diff changeset
243 uint8_t busack = 0;
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parents:
diff changeset
244 uint32_t busack_cycle = CYCLE_NEVER;
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Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
245 uint8_t new_busack = 0;
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parents:
diff changeset
246
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parents:
diff changeset
247 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction)
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parents:
diff changeset
248 {
89
9757b4c6c33f Minor joypad fix and commeount out some debug printfs
Mike Pavone <pavone@retrodev.com>
parents: 88
diff changeset
249 /*uint8_t control = pad->control | 0x80;
88
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parents:
diff changeset
250 uint8_t th = control & pad->output;
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parents:
diff changeset
251 if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) {
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parents:
diff changeset
252 printf("adjust_cycles | control: %X, TH: %X, GAMEPAD_TH0: %X, GAMEPAD_TH1: %X, TH Counter: %d, Timeout: %d, Cycle: %d\n", control, th, pad->input[GAMEPAD_TH0], pad->input[GAMEPAD_TH1], pad->th_counter,pad->timeout_cycle, current_cycle);
89
9757b4c6c33f Minor joypad fix and commeount out some debug printfs
Mike Pavone <pavone@retrodev.com>
parents: 88
diff changeset
253 }*/
88
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parents:
diff changeset
254 if (current_cycle >= pad->timeout_cycle) {
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parents:
diff changeset
255 pad->th_counter = 0;
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parents:
diff changeset
256 } else {
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parents:
diff changeset
257 pad->timeout_cycle -= deduction;
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parents:
diff changeset
258 }
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parents:
diff changeset
259 if (busack_cycle < CYCLE_NEVER && current_cycle < busack_cycle) {
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parents:
diff changeset
260 busack_cycle -= deduction;
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parents:
diff changeset
261 }
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parents:
diff changeset
262 }
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parents:
diff changeset
263
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parents:
diff changeset
264 void io_data_write(io_port * pad, m68k_context * context, uint8_t value)
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parents:
diff changeset
265 {
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parents:
diff changeset
266 if (pad->control & TH) {
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parents:
diff changeset
267 //check if TH has changed
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parents:
diff changeset
268 if ((pad->output & TH) ^ (value & TH)) {
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parents:
diff changeset
269 if (context->current_cycle >= pad->timeout_cycle) {
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parents:
diff changeset
270 pad->th_counter = 0;
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Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
271 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
272 if (!(value & TH)) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
273 pad->th_counter++;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
274 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
275 pad->timeout_cycle = context->current_cycle + TH_TIMEOUT;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
276 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
277 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
278 pad->output = value;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
279 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
281 void io_data_read(io_port * pad, m68k_context * context)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
282 {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
283 uint8_t control = pad->control | 0x80;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
284 uint8_t th = control & pad->output;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
285 uint8_t input;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
286 if (context->current_cycle >= pad->timeout_cycle) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
287 pad->th_counter = 0;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
288 }
89
9757b4c6c33f Minor joypad fix and commeount out some debug printfs
Mike Pavone <pavone@retrodev.com>
parents: 88
diff changeset
289 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) {
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
290 printf("io_data_read | control: %X, TH: %X, GAMEPAD_TH0: %X, GAMEPAD_TH1: %X, TH Counter: %d, Timeout: %d, Cycle: %d\n", control, th, pad->input[GAMEPAD_TH0], pad->input[GAMEPAD_TH1], pad->th_counter,pad->timeout_cycle, context->current_cycle);
89
9757b4c6c33f Minor joypad fix and commeount out some debug printfs
Mike Pavone <pavone@retrodev.com>
parents: 88
diff changeset
291 }*/
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
292 if (th) {
195
c615061f7914 Fix 6-button controller emulation
Mike Pavone <pavone@retrodev.com>
parents: 186
diff changeset
293 if (pad->th_counter == 3) {
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
294 input = pad->input[GAMEPAD_EXTRA];
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
295 } else {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
296 input = pad->input[GAMEPAD_TH1];
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
297 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
298 } else {
195
c615061f7914 Fix 6-button controller emulation
Mike Pavone <pavone@retrodev.com>
parents: 186
diff changeset
299 if (pad->th_counter == 3) {
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
300 input = pad->input[GAMEPAD_TH0] | 0xF;
195
c615061f7914 Fix 6-button controller emulation
Mike Pavone <pavone@retrodev.com>
parents: 186
diff changeset
301 } else if(pad->th_counter == 4) {
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
302 input = pad->input[GAMEPAD_TH0] & 0x30;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
303 } else {
89
9757b4c6c33f Minor joypad fix and commeount out some debug printfs
Mike Pavone <pavone@retrodev.com>
parents: 88
diff changeset
304 input = pad->input[GAMEPAD_TH0] | 0xC;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
305 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
306 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
307 context->value = ((~input) & (~control)) | (pad->output & control);
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
308 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
309 printf ("value: %X\n", context->value);
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
310 }*/
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
311 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
312
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
313 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
314 {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
315 if (location < 0x10000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
316 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
317 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
318 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
319 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
320 if (!(busack || reset)) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
321 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
322 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
323 z80_ram[location & 0x1FFF] = value;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
324 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
325 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
326 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
327 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
328 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
329 switch(location/2)
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
330 {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
331 case 0x1:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
332 io_data_write(&gamepad_1, context, value);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
333 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
334 case 0x2:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
335 io_data_write(&gamepad_2, context, value);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
336 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
337 case 0x3://PORT C Data
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
338 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
339 case 0x4:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
340 gamepad_1.control = value;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
341 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
342 case 0x5:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
343 gamepad_2.control = value;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
344 break;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
345 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
346 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
347 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
348 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
349 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
350 busack_cycle = CYCLE_NEVER;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
351 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
352 if (value & 1) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
353 busreq = 1;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
354 if(!reset) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
355 busack_cycle = context->current_cycle + Z80_ACK_DELAY;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
356 new_busack = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
357 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
358 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
359 busreq = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
360 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
361 busack = 1;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
362 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
363 } else if (location == 0x1200) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
364 if (value & 1) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
365 if (reset && busreq) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
366 new_busack = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
367 busack_cycle = context->current_cycle + Z80_ACK_DELAY;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
368 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
369 reset = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
370 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
371 reset = 1;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
372 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
373 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
374 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
375 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
376 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
377 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
378
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
379 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
380 {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
381 if (location < 0x10000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
382 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
383 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
384 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
385 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
386 if (!(busack || reset)) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
387 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
388 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
389 z80_ram[location & 0x1FFE] = value >> 8;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
390 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
391 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
392 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
393 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
394 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
395 switch(location/2)
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
396 {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
397 case 0x1:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
398 io_data_write(&gamepad_1, context, value);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
399 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
400 case 0x2:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
401 io_data_write(&gamepad_2, context, value);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
402 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
403 case 0x3://PORT C Data
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
404 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
405 case 0x4:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
406 gamepad_1.control = value;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
407 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
408 case 0x5:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
409 gamepad_2.control = value;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
410 break;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
411 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
412 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
413 //printf("IO Write of %X to %X @ %d\n", value, location, context->current_cycle);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
414 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
415 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
416 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
417 busack_cycle = CYCLE_NEVER;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
418 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
419 if (value & 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
420 busreq = 1;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
421 if(!reset) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
422 busack_cycle = context->current_cycle + Z80_ACK_DELAY;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
423 new_busack = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
424 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
425 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
426 busreq = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
427 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
428 busack = 1;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
429 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
430 } else if (location == 0x1200) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
431 if (value & 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
432 if (reset && busreq) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
433 new_busack = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
434 busack_cycle = context->current_cycle + Z80_ACK_DELAY;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
435 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
436 reset = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
437 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
438 reset = 1;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
439 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
440 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
441 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
442 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
443 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
444 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
445
130
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
446 #define USA 0x80
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
447 #define JAP 0x00
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
448 #define EUR 0xC0
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
449 #define NO_DISK 0x20
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
450 uint8_t version_reg = NO_DISK | USA;
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
451
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
452 m68k_context * io_read(uint32_t location, m68k_context * context)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
453 {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
454 if (location < 0x10000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
455 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
456 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
457 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
458 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
459 if (!(busack || reset)) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
460 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
461 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
462 context->value = z80_ram[location & 0x1FFF];
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
463 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
464 context->value = 0xFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
465 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
466 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
467 context->value = 0xFF;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
468 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
469 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
470 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
471 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
472 switch(location/2)
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
473 {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
474 case 0x0:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
475 //version bits should be 0 for now since we're not emulating TMSS
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
476 //Not sure about the other bits
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
477 context->value = version_reg;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
478 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
479 case 0x1:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
480 io_data_read(&gamepad_1, context);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
481 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
482 case 0x2:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
483 io_data_read(&gamepad_2, context);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
484 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
485 case 0x3://PORT C Data
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
486 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
487 case 0x4:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
488 context->value = gamepad_1.control;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
489 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
490 case 0x5:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
491 context->value = gamepad_2.control;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
492 break;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
493 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
494 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
495 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
496 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
497 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
498 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
499 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
500 context->value = reset || busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
501 //printf("Byte read of BUSREQ returned %d @ %d (reset: %d, busack: %d)\n", context->value, context->current_cycle, reset, busack);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
502 } else if (location == 0x1200) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
503 context->value = !reset;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
504 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
505 printf("Byte read of unknown IO location: %X\n", location);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
506 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
507 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
508 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
509 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
510 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
511
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
512 m68k_context * io_read_w(uint32_t location, m68k_context * context)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
513 {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
514 if (location < 0x10000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
515 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
516 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
517 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
518 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
519 if (!(busack || reset)) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
520 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
521 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
522 context->value = z80_ram[location & 0x1FFE];
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
523 context->value |= context->value << 8;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
524 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
525 context->value = 0xFFFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
526 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
527 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
528 context->value = 0xFFFF;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
529 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
530 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
531 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
532 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
533 switch(location/2)
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
534 {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
535 case 0x0:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
536 //version bits should be 0 for now since we're not emulating TMSS
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
537 //Not sure about the other bits
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
538 context->value = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
539 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
540 case 0x1:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
541 io_data_read(&gamepad_1, context);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
542 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
543 case 0x2:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
544 io_data_read(&gamepad_2, context);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
545 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
546 case 0x3://PORT C Data
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
547 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
548 case 0x4:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
549 context->value = gamepad_1.control;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
550 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
551 case 0x5:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
552 context->value = gamepad_2.control;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
553 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
554 case 0x6:
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
555 //PORT C Control
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
556 context->value = 0;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
557 break;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
558 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
559 context->value = context->value | (context->value << 8);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
560 //printf("Word read to %X returned %d\n", location, context->value);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
561 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
562 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
563 if (busack_cycle > context->current_cycle) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
564 busack = new_busack;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
565 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
566 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
567 context->value = (reset || busack) << 8;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
568 //printf("Word read of BUSREQ returned %d\n", context->value);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
569 } else if (location == 0x1200) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
570 context->value = (!reset) << 8;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
571 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
572 printf("Word read of unknown IO location: %X\n", location);
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
573 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
574 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
575 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
576 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
577 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
578
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
579 typedef struct bp_def {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
580 struct bp_def * next;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
581 uint32_t address;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
582 uint32_t index;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
583 } bp_def;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
584
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
585 bp_def * breakpoints = NULL;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
586 uint32_t bp_index = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
587
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
588 bp_def ** find_breakpoint(bp_def ** cur, uint32_t address)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
589 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
590 while (*cur) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
591 if ((*cur)->address == address) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
592 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
593 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
594 cur = &((*cur)->next);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
595 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
596 return cur;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
597 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
598
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
599 bp_def ** find_breakpoint_idx(bp_def ** cur, uint32_t index)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
600 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
601 while (*cur) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
602 if ((*cur)->index == index) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
603 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
604 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
605 cur = &((*cur)->next);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
606 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
607 return cur;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
608 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
609
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
610 char * find_param(char * buf)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
611 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
612 for (; *buf; buf++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
613 if (*buf == ' ') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
614 if (*(buf+1)) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
615 return buf+1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
616 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
617 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
618 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
619 return NULL;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
620 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
621
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
622 void strip_nl(char * buf)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
623 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
624 for(; *buf; buf++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
625 if (*buf == '\n') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
626 *buf = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
627 return;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
628 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
629 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
630 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
631
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
632 m68k_context * debugger(m68k_context * context, uint32_t address)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
633 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
634 static char last_cmd[1024];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
635 char input_buf[1024];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
636 static uint32_t branch_t;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
637 static uint32_t branch_f;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
638 m68kinst inst;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
639 //probably not necessary, but let's play it safe
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
640 address &= 0xFFFFFF;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
641 if (address == branch_t) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
642 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
643 if (!*f_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
644 remove_breakpoint(context, branch_f);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
645 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
646 branch_t = branch_f = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
647 } else if(address == branch_f) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
648 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
649 if (!*t_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
650 remove_breakpoint(context, branch_t);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
651 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
652 branch_t = branch_f = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
653 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
654 //Check if this is a user set breakpoint, or just a temporary one
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
655 bp_def ** this_bp = find_breakpoint(&breakpoints, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
656 if (*this_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
657 printf("Breakpoint %d hit\n", (*this_bp)->index);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
658 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
659 remove_breakpoint(context, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
660 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
661 uint16_t * pc;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
662 if (address < 0x400000) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
663 pc = cart + address/2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
664 } else if(address > 0xE00000) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
665 pc = ram + (address & 0xFFFF)/2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
666 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
667 fprintf(stderr, "Entered debugger at address %X\n", address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
668 exit(1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
669 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
670 uint16_t * after_pc = m68k_decode(pc, &inst, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
671 m68k_disasm(&inst, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
672 printf("%X: %s\n", address, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
673 uint32_t after = address + (after_pc-pc)*2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
674 int debugging = 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
675 while (debugging) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
676 fputs(">", stdout);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
677 if (!fgets(input_buf, sizeof(input_buf), stdin)) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
678 fputs("fgets failed", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
679 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
680 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
681 strip_nl(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
682 //hitting enter repeats last command
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
683 if (input_buf[0]) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
684 strcpy(last_cmd, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
685 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
686 strcpy(input_buf, last_cmd);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
687 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
688 char * param;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
689 char format[8];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
690 uint32_t value;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
691 bp_def * new_bp;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
692 switch(input_buf[0])
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
693 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
694 case 'c':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
695 puts("Continuing");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
696 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
697 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
698 case 'b':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
699 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
700 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
701 fputs("b command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
702 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
703 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
704 value = strtol(param, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
705 insert_breakpoint(context, value, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
706 new_bp = malloc(sizeof(bp_def));
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
707 new_bp->next = breakpoints;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
708 new_bp->address = value;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
709 new_bp->index = bp_index++;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
710 breakpoints = new_bp;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
711 printf("Breakpoint %d set at %X\n", new_bp->index, value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
712 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
713 case 'a':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
714 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
715 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
716 fputs("a command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
717 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
718 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
719 value = strtol(param, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
720 insert_breakpoint(context, value, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
721 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
722 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
723 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
724 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
725 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
726 fputs("b command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
727 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
728 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
729 value = atoi(param);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
730 this_bp = find_breakpoint_idx(&breakpoints, value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
731 if (!*this_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
732 fprintf(stderr, "Breakpoint %d does not exist\n", value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
733 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
734 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
735 new_bp = *this_bp;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
736 *this_bp = (*this_bp)->next;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
737 free(new_bp);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
738 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
739 case 'p':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
740 strcpy(format, "%s: %d\n");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
741 if (input_buf[1] == '/') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
742 switch (input_buf[2])
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
743 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
744 case 'x':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
745 case 'X':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
746 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
747 case 'c':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
748 format[5] = input_buf[2];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
749 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
750 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
751 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
752 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
753 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
754 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
755 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
756 fputs("p command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
757 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
758 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
759 if (param[0] == 'd' && param[1] >= '0' && param[1] <= '7') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
760 value = context->dregs[param[1]-'0'];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
761 } else if (param[0] == 'a' && param[1] >= '0' && param[1] <= '7') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
762 value = context->aregs[param[1]-'0'];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
763 } else if (param[0] == 'S' && param[1] == 'R') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
764 value = (context->status << 8);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
765 for (int flag = 0; flag < 5; flag++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
766 value |= context->flags[flag] << (4-flag);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
767 }
185
b204fbed4efe Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents: 184
diff changeset
768 } else if(param[0] == 'c') {
b204fbed4efe Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents: 184
diff changeset
769 value = context->current_cycle;
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
770 } else if (param[0] == '0' && param[1] == 'x') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
771 uint32_t p_addr = strtol(param+2, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
772 value = read_dma_value(p_addr/2);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
773 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
774 fprintf(stderr, "Unrecognized parameter to p: %s\n", param);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
775 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
776 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
777 printf(format, param, value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
778 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
779 case 'n':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
780 //TODO: Deal with jmp, dbcc, rtr and rte
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
781 if (inst.op == M68K_RTS) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
782 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
783 } else if(inst.op == M68K_BCC && inst.extra.cond != COND_FALSE) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
784 if (inst.extra.cond = COND_TRUE) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
785 after = inst.address + 2 + inst.src.params.immed;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
786 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
787 branch_f = after;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
788 branch_t = inst.address + 2 + inst.src.params.immed;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
789 insert_breakpoint(context, branch_t, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
790 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
791 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
792 insert_breakpoint(context, after, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
793 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
794 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
795 case 'q':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
796 puts("Quitting");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
797 exit(0);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
798 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
799 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
800 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
801 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
802 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
803 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
804 return context;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
805 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
806
211
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
807 void init_run_cpu(vdp_context * vcontext, int debug, FILE * address_log)
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
808 {
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
809 m68k_context context;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
810 x86_68k_options opts;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
811 init_x86_68k_opts(&opts);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
812 opts.address_log = address_log;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
813 init_68k_context(&context, opts.native_code_map, &opts);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
814
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
815 context.next_context = vcontext;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
816 //cartridge ROM
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
817 context.mem_pointers[0] = cart;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
818 context.target_cycle = context.sync_cycle = MCLKS_PER_FRAME/MCLKS_PER_68K;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
819 //work RAM
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
820 context.mem_pointers[1] = ram;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
821 uint32_t address;
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
822 /*address = cart[0x68/2] << 16 | cart[0x6A/2];
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
823 translate_m68k_stream(address, &context);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
824 address = cart[0x70/2] << 16 | cart[0x72/2];
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
825 translate_m68k_stream(address, &context);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
826 address = cart[0x78/2] << 16 | cart[0x7A/2];
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
827 translate_m68k_stream(address, &context);*/
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
828 address = cart[2] << 16 | cart[3];
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
829 translate_m68k_stream(address, &context);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
830 if (debug) {
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
831 insert_breakpoint(&context, address, (uint8_t *)debugger);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
832 }
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
833 m68k_reset(&context);
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
834 }
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
835
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
836 int main(int argc, char ** argv)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
837 {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
838 if (argc < 2) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
839 fputs("Usage: blastem FILENAME\n", stderr);
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
840 return 1;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
841 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
842 if(!load_rom(argv[1])) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
843 fprintf(stderr, "Failed to open %s for reading\n", argv[1]);
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
844 return 1;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
845 }
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
846 int width = -1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
847 int height = -1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
848 int debug = 0;
197
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents: 195
diff changeset
849 FILE *address_log = NULL;
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
850 for (int i = 2; i < argc; i++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
851 if (argv[i][0] == '-') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
852 switch(argv[i][1]) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
853 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
854 debug = 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
855 break;
197
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents: 195
diff changeset
856 case 'l':
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents: 195
diff changeset
857 address_log = fopen("address.log", "w");
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents: 195
diff changeset
858 break;
215
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
859 case 'v':
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
860 headless = 1;
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
861 break;
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
862 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
863 fprintf(stderr, "Unrecognized switch %s\n", argv[i]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
864 return 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
865 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
866 } else if (width < 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
867 width = atoi(argv[i]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
868 } else if (height < 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
869 height = atoi(argv[i]);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
870 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
871 }
184
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
872 width = width < 320 ? 320 : width;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents: 166
diff changeset
873 height = height < 240 ? (width/320) * 240 : height;
215
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
874 if (!headless) {
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
875 render_init(width, height);
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents: 211
diff changeset
876 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
877 vdp_context v_context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
878
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
879 init_vdp_context(&v_context);
211
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
880 init_run_cpu(&v_context, debug, address_log);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
881 return 0;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
882 }