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annotate debug.c @ 524:fb39534b6604

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Move debugging code outside of main source file
author Mike Pavone <pavone@retrodev.com>
date Tue, 11 Feb 2014 21:53:31 -0800
parents
children 62860044337d
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rev   line source
524
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1 #include "debug.h"
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2 #include "blastem.h"
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3 #include "68kinst.h"
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4 #include <stdlib.h>
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5 #include <string.h>
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6
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7 bp_def * breakpoints = NULL;
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8 bp_def * zbreakpoints = NULL;
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9 uint32_t bp_index = 0;
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10 uint32_t zbp_index = 0;
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11
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12 bp_def ** find_breakpoint(bp_def ** cur, uint32_t address)
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13 {
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14 while (*cur) {
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15 if ((*cur)->address == address) {
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16 break;
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17 }
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18 cur = &((*cur)->next);
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19 }
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20 return cur;
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21 }
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22
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23 bp_def ** find_breakpoint_idx(bp_def ** cur, uint32_t index)
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24 {
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25 while (*cur) {
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26 if ((*cur)->index == index) {
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27 break;
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28 }
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29 cur = &((*cur)->next);
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30 }
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31 return cur;
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32 }
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33
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34 disp_def * displays = NULL;
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35 disp_def * zdisplays = NULL;
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36 uint32_t disp_index = 0;
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37 uint32_t zdisp_index = 0;
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38
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39 void add_display(disp_def ** head, uint32_t *index, char format_char, char * param)
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40 {
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41 disp_def * ndisp = malloc(sizeof(*ndisp));
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42 ndisp->format_char = format_char;
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43 ndisp->param = strdup(param);
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44 ndisp->next = *head;
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45 ndisp->index = *index++;
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46 *head = ndisp;
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47 }
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48
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49 void remove_display(disp_def ** head, uint32_t index)
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50 {
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51 while (*head) {
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52 if ((*head)->index == index) {
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53 disp_def * del_disp = *head;
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54 *head = del_disp->next;
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55 free(del_disp->param);
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56 free(del_disp);
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57 } else {
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58 head = &(*head)->next;
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59 }
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60 }
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61 }
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62
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63 char * find_param(char * buf)
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64 {
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65 for (; *buf; buf++) {
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66 if (*buf == ' ') {
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67 if (*(buf+1)) {
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68 return buf+1;
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69 }
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70 }
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71 }
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72 return NULL;
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73 }
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74
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75 void strip_nl(char * buf)
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76 {
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77 for(; *buf; buf++) {
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78 if (*buf == '\n') {
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79 *buf = 0;
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80 return;
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81 }
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82 }
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83 }
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84
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85 void zdebugger_print(z80_context * context, char format_char, char * param)
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86 {
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87 uint32_t value;
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88 char format[8];
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89 strcpy(format, "%s: %d\n");
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90 switch (format_char)
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91 {
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92 case 'x':
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93 case 'X':
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94 case 'd':
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95 case 'c':
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96 format[5] = format_char;
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97 break;
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98 case '\0':
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99 break;
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100 default:
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101 fprintf(stderr, "Unrecognized format character: %c\n", format_char);
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102 }
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103 switch (param[0])
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104 {
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105 case 'a':
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106 if (param[1] == 'f') {
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107 if(param[2] == '\'') {
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108 value = context->alt_regs[Z80_A] << 8;
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109 value |= context->alt_flags[ZF_S] << 7;
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110 value |= context->alt_flags[ZF_Z] << 6;
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111 value |= context->alt_flags[ZF_H] << 4;
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112 value |= context->alt_flags[ZF_PV] << 2;
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113 value |= context->alt_flags[ZF_N] << 1;
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114 value |= context->alt_flags[ZF_C];
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115 } else {
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116 value = context->regs[Z80_A] << 8;
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117 value |= context->flags[ZF_S] << 7;
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118 value |= context->flags[ZF_Z] << 6;
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119 value |= context->flags[ZF_H] << 4;
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120 value |= context->flags[ZF_PV] << 2;
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121 value |= context->flags[ZF_N] << 1;
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122 value |= context->flags[ZF_C];
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123 }
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124 } else if(param[1] == '\'') {
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125 value = context->alt_regs[Z80_A];
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126 } else {
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127 value = context->regs[Z80_A];
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128 }
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129 break;
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130 case 'b':
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131 if (param[1] == 'c') {
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132 if(param[2] == '\'') {
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133 value = context->alt_regs[Z80_B] << 8;
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134 value |= context->alt_regs[Z80_C];
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135 } else {
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136 value = context->regs[Z80_B] << 8;
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137 value |= context->regs[Z80_C];
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138 }
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139 } else if(param[1] == '\'') {
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140 value = context->alt_regs[Z80_B];
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141 } else if(param[1] == 'a') {
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142 value = context->bank_reg << 15;
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143 } else {
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144 value = context->regs[Z80_B];
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145 }
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146 break;
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147 case 'c':
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148 if(param[1] == '\'') {
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149 value = context->alt_regs[Z80_C];
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150 } else if(param[1] == 'y') {
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151 value = context->current_cycle;
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152 } else {
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153 value = context->regs[Z80_C];
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154 }
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155 break;
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156 case 'd':
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157 if (param[1] == 'e') {
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parents:
diff changeset
158 if(param[2] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
159 value = context->alt_regs[Z80_D] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
160 value |= context->alt_regs[Z80_E];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
161 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
162 value = context->regs[Z80_D] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
163 value |= context->regs[Z80_E];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
164 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
165 } else if(param[1] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
166 value = context->alt_regs[Z80_D];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
167 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
168 value = context->regs[Z80_D];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
169 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
170 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
171 case 'e':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
172 if(param[1] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
173 value = context->alt_regs[Z80_E];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
174 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
175 value = context->regs[Z80_E];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
176 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
177 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
178 case 'f':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
179 if(param[2] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
180 value = context->alt_flags[ZF_S] << 7;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
181 value |= context->alt_flags[ZF_Z] << 6;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
182 value |= context->alt_flags[ZF_H] << 4;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
183 value |= context->alt_flags[ZF_PV] << 2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
184 value |= context->alt_flags[ZF_N] << 1;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
185 value |= context->alt_flags[ZF_C];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
186 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
187 value = context->flags[ZF_S] << 7;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
188 value |= context->flags[ZF_Z] << 6;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
189 value |= context->flags[ZF_H] << 4;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
190 value |= context->flags[ZF_PV] << 2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
191 value |= context->flags[ZF_N] << 1;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
192 value |= context->flags[ZF_C];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
193 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
194 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
195 case 'h':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
196 if (param[1] == 'l') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
197 if(param[2] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
198 value = context->alt_regs[Z80_H] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
199 value |= context->alt_regs[Z80_L];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
200 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
201 value = context->regs[Z80_H] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
202 value |= context->regs[Z80_L];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
203 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
204 } else if(param[1] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
205 value = context->alt_regs[Z80_H];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
206 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
207 value = context->regs[Z80_H];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
208 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
209 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
210 case 'l':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
211 if(param[1] == '\'') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
212 value = context->alt_regs[Z80_L];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
213 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
214 value = context->regs[Z80_L];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
215 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
216 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
217 case 'i':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
218 if(param[1] == 'x') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
219 if (param[2] == 'h') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
220 value = context->regs[Z80_IXH];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
221 } else if(param[2] == 'l') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
222 value = context->regs[Z80_IXL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
223 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
224 value = context->regs[Z80_IXH] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
225 value |= context->regs[Z80_IXL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
226 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
227 } else if(param[1] == 'y') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
228 if (param[2] == 'h') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
229 value = context->regs[Z80_IYH];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
230 } else if(param[2] == 'l') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
231 value = context->regs[Z80_IYL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
232 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
233 value = context->regs[Z80_IYH] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
234 value |= context->regs[Z80_IYL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
235 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
236 } else if(param[1] == 'n') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
237 value = context->int_cycle;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
238 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '1') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
239 value = context->iff1;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
240 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '2') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
241 value = context->iff2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
242 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
243 value = context->im;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
244 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
245 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
246 case 's':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
247 if (param[1] == 'p') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
248 value = context->sp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
249 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
250 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
251 case '0':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
252 if (param[1] == 'x') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
253 uint16_t p_addr = strtol(param+2, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
254 if (p_addr < 0x4000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
255 value = z80_ram[p_addr & 0x1FFF];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
256 } else if(p_addr >= 0x8000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
257 uint32_t v_addr = context->bank_reg << 15;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
258 v_addr += p_addr & 0x7FFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
259 if (v_addr < 0x400000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
260 value = cart[v_addr/2];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
261 } else if(v_addr > 0xE00000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
262 value = ram[(v_addr & 0xFFFF)/2];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
263 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
264 if (v_addr & 1) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
265 value &= 0xFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
266 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
267 value >>= 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
268 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
269 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
270 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
271 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
272 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
273 printf(format, param, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
274 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
275
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
276 z80_context * zdebugger(z80_context * context, uint16_t address)
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
277 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
278 static char last_cmd[1024];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
279 char input_buf[1024];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280 static uint16_t branch_t;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
281 static uint16_t branch_f;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
282 z80inst inst;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
283 //Check if this is a user set breakpoint, or just a temporary one
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
284 bp_def ** this_bp = find_breakpoint(&zbreakpoints, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
285 if (*this_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
286 printf("Z80 Breakpoint %d hit\n", (*this_bp)->index);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
287 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
288 zremove_breakpoint(context, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
289 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
290 uint8_t * pc;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
291 if (address < 0x4000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
292 pc = z80_ram + (address & 0x1FFF);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
293 } else if (address >= 0x8000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
294 if (context->bank_reg < (0x400000 >> 15)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
295 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, which is not yet supported\n", address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
296 exit(1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
297 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
298 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, but the bank is not pointed to a cartridge address\n", address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
299 exit(1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
300 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
301 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
302 fprintf(stderr, "Entered Z80 debugger at address %X\n", address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
303 exit(1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
304 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
305 for (disp_def * cur = zdisplays; cur; cur = cur->next) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
306 zdebugger_print(context, cur->format_char, cur->param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
307 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
308 uint8_t * after_pc = z80_decode(pc, &inst);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
309 z80_disasm(&inst, input_buf, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
310 printf("%X:\t%s\n", address, input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
311 uint16_t after = address + (after_pc-pc);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
312 int debugging = 1;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
313 while(debugging) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
314 fputs(">", stdout);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
315 if (!fgets(input_buf, sizeof(input_buf), stdin)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
316 fputs("fgets failed", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
317 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
318 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
319 strip_nl(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
320 //hitting enter repeats last command
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
321 if (input_buf[0]) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
322 strcpy(last_cmd, input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
323 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
324 strcpy(input_buf, last_cmd);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
325 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
326 char * param;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
327 char format[8];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
328 uint32_t value;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
329 bp_def * new_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
330 switch(input_buf[0])
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
331 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
332 case 'a':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
333 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
334 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
335 fputs("a command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
336 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
337 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
338 value = strtol(param, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
339 zinsert_breakpoint(context, value, (uint8_t *)zdebugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
340 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
341 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
342 case 'b':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
343 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
344 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
345 fputs("b command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
346 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
347 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
348 value = strtol(param, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
349 zinsert_breakpoint(context, value, (uint8_t *)zdebugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
350 new_bp = malloc(sizeof(bp_def));
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
351 new_bp->next = zbreakpoints;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
352 new_bp->address = value;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
353 new_bp->index = zbp_index++;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
354 zbreakpoints = new_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
355 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
356 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
357 case 'c':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
358 puts("Continuing");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
359 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
360 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
361 case 'd':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
362 if (input_buf[1] == 'i') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
363 char format_char = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
364 for(int i = 2; input_buf[i] != 0 && input_buf[i] != ' '; i++) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
365 if (input_buf[i] == '/') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
366 format_char = input_buf[i+1];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
367 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
368 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
369 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
370 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
371 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
372 fputs("display command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
373 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
374 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
375 zdebugger_print(context, format_char, param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
376 add_display(&zdisplays, &zdisp_index, format_char, param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
377 } else if (input_buf[1] == 'e' || input_buf[1] == ' ') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
378 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
379 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
380 fputs("delete command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
381 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
382 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
383 if (param[0] >= '0' && param[0] <= '9') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
384 value = atoi(param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
385 this_bp = find_breakpoint_idx(&zbreakpoints, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
386 if (!*this_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
387 fprintf(stderr, "Breakpoint %d does not exist\n", value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
388 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
389 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
390 new_bp = *this_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
391 zremove_breakpoint(context, new_bp->address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
392 *this_bp = new_bp->next;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
393 free(new_bp);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
394 } else if (param[0] == 'd') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
395 param = find_param(param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
396 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
397 fputs("delete display command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
398 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
399 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
400 remove_display(&zdisplays, atoi(param));
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
401 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
402 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
403 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
404 case 'n':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
405 //TODO: Handle conditional branch instructions
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
406 if (inst.op == Z80_JP) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
407 if (inst.addr_mode == Z80_IMMED) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
408 after = inst.immed;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
409 } else if (inst.ea_reg == Z80_HL) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
410 after = context->regs[Z80_H] << 8 | context->regs[Z80_L];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
411 } else if (inst.ea_reg == Z80_IX) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
412 after = context->regs[Z80_IXH] << 8 | context->regs[Z80_IXL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
413 } else if (inst.ea_reg == Z80_IY) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
414 after = context->regs[Z80_IYH] << 8 | context->regs[Z80_IYL];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
415 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
416 } else if(inst.op == Z80_JR) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
417 after += inst.immed;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
418 } else if(inst.op == Z80_RET) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
419 if (context->sp < 0x4000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
420 after = z80_ram[context->sp & 0x1FFF] | z80_ram[(context->sp+1) & 0x1FFF] << 8;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
421 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
422 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
423 zinsert_breakpoint(context, after, (uint8_t *)zdebugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
424 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
425 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
426 case 'p':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
427 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
428 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
429 fputs("p command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
430 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
431 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
432 zdebugger_print(context, input_buf[1] == '/' ? input_buf[2] : 0, param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
433 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
434 case 'q':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
435 puts("Quitting");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
436 exit(0);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
437 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
438 case 's': {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
439 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
440 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
441 fputs("s command requires a file name\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
442 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
443 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
444 FILE * f = fopen(param, "wb");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
445 if (f) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
446 if(fwrite(z80_ram, 1, sizeof(z80_ram), f) != sizeof(z80_ram)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
447 fputs("Error writing file\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
448 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
449 fclose(f);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
450 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
451 fprintf(stderr, "Could not open %s for writing\n", param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
452 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
453 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
454 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
455 default:
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
456 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
457 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
458 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
459 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
460 return context;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
461 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
462
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
463 m68k_context * debugger(m68k_context * context, uint32_t address)
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
464 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
465 static char last_cmd[1024];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
466 char input_buf[1024];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
467 static uint32_t branch_t;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
468 static uint32_t branch_f;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
469 m68kinst inst;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
470 //probably not necessary, but let's play it safe
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
471 address &= 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
472 if (address == branch_t) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
473 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
474 if (!*f_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
475 remove_breakpoint(context, branch_f);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
476 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
477 branch_t = branch_f = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
478 } else if(address == branch_f) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
479 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
480 if (!*t_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
481 remove_breakpoint(context, branch_t);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
482 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
483 branch_t = branch_f = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
484 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
485 //Check if this is a user set breakpoint, or just a temporary one
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
486 bp_def ** this_bp = find_breakpoint(&breakpoints, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
487 if (*this_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
488 printf("68K Breakpoint %d hit\n", (*this_bp)->index);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
489 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
490 remove_breakpoint(context, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
491 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
492 uint16_t * pc;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
493 if (address < 0x400000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
494 pc = cart + address/2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
495 } else if(address > 0xE00000) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
496 pc = ram + (address & 0xFFFF)/2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
497 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
498 fprintf(stderr, "Entered 68K debugger at address %X\n", address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
499 exit(1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
500 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
501 uint16_t * after_pc = m68k_decode(pc, &inst, address);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
502 m68k_disasm(&inst, input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
503 printf("%X: %s\n", address, input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
504 uint32_t after = address + (after_pc-pc)*2;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
505 int debugging = 1;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
506 while (debugging) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
507 fputs(">", stdout);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
508 if (!fgets(input_buf, sizeof(input_buf), stdin)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
509 fputs("fgets failed", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
510 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
511 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
512 strip_nl(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
513 //hitting enter repeats last command
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
514 if (input_buf[0]) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
515 strcpy(last_cmd, input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
516 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
517 strcpy(input_buf, last_cmd);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
518 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
519 char * param;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
520 char format[8];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
521 uint32_t value;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
522 bp_def * new_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
523 switch(input_buf[0])
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
524 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
525 case 'c':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
526 puts("Continuing");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
527 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
528 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
529 case 'b':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
530 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
531 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
532 fputs("b command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
533 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
534 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
535 value = strtol(param, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
536 insert_breakpoint(context, value, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
537 new_bp = malloc(sizeof(bp_def));
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
538 new_bp->next = breakpoints;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
539 new_bp->address = value;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
540 new_bp->index = bp_index++;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
541 breakpoints = new_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
542 printf("68K Breakpoint %d set at %X\n", new_bp->index, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
543 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
544 case 'a':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
545 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
546 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
547 fputs("a command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
548 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
549 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
550 value = strtol(param, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
551 insert_breakpoint(context, value, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
552 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
553 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
554 case 'd':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
555 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
556 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
557 fputs("d command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
558 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
559 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
560 value = atoi(param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
561 this_bp = find_breakpoint_idx(&breakpoints, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
562 if (!*this_bp) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
563 fprintf(stderr, "Breakpoint %d does not exist\n", value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
564 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
565 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
566 new_bp = *this_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
567 *this_bp = (*this_bp)->next;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
568 free(new_bp);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
569 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
570 case 'p':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
571 strcpy(format, "%s: %d\n");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
572 if (input_buf[1] == '/') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
573 switch (input_buf[2])
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
574 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
575 case 'x':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
576 case 'X':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
577 case 'd':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
578 case 'c':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
579 format[5] = input_buf[2];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
580 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
581 default:
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
582 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
583 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
584 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
585 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
586 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
587 fputs("p command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
588 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
589 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
590 if (param[0] == 'd' && param[1] >= '0' && param[1] <= '7') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
591 value = context->dregs[param[1]-'0'];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
592 } else if (param[0] == 'a' && param[1] >= '0' && param[1] <= '7') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
593 value = context->aregs[param[1]-'0'];
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
594 } else if (param[0] == 'S' && param[1] == 'R') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
595 value = (context->status << 8);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
596 for (int flag = 0; flag < 5; flag++) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
597 value |= context->flags[flag] << (4-flag);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
598 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
599 } else if(param[0] == 'c') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
600 value = context->current_cycle;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
601 } else if (param[0] == '0' && param[1] == 'x') {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
602 uint32_t p_addr = strtol(param+2, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
603 value = read_dma_value(p_addr/2);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
604 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
605 fprintf(stderr, "Unrecognized parameter to p: %s\n", param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
606 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
607 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
608 printf(format, param, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
609 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
610 case 'n':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
611 if (inst.op == M68K_RTS) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
612 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
613 } else if (inst.op == M68K_RTE || inst.op == M68K_RTR) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
614 after = (read_dma_value((context->aregs[7]+2)/2) << 16) | read_dma_value((context->aregs[7]+2)/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
615 } else if(m68k_is_noncall_branch(&inst)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
616 if (inst.op == M68K_BCC && inst.extra.cond != COND_TRUE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
617 branch_f = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
618 branch_t = m68k_branch_target(&inst, context->dregs, context->aregs);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
619 insert_breakpoint(context, branch_t, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
620 } else if(inst.op == M68K_DBCC) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
621 if ( inst.extra.cond == COND_FALSE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
622 if (context->dregs[inst.dst.params.regs.pri] & 0xFFFF) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
623 after = m68k_branch_target(&inst, context->dregs, context->aregs);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
624 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
625 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
626 branch_t = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
627 branch_f = m68k_branch_target(&inst, context->dregs, context->aregs);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
628 insert_breakpoint(context, branch_f, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
629 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
630 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
631 after = m68k_branch_target(&inst, context->dregs, context->aregs);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
632 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
633 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
634 insert_breakpoint(context, after, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
635 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
636 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
637 case 'o':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
638 if (inst.op == M68K_RTS) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
639 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
640 } else if (inst.op == M68K_RTE || inst.op == M68K_RTR) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
641 after = (read_dma_value((context->aregs[7]+2)/2) << 16) | read_dma_value((context->aregs[7]+2)/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
642 } else if(m68k_is_noncall_branch(&inst)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
643 if (inst.op == M68K_BCC && inst.extra.cond != COND_TRUE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
644 branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
645 if (branch_t < after) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
646 branch_t = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
647 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
648 branch_f = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
649 insert_breakpoint(context, branch_t, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
650 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
651 } else if(inst.op == M68K_DBCC) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
652 uint32_t target = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
653 if (target > after) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
654 if (inst.extra.cond == COND_FALSE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
655 after = target;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
656 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
657 branch_f = target;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
658 branch_t = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
659 insert_breakpoint(context, branch_f, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
660 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
661 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
662 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
663 after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
664 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
665 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
666 insert_breakpoint(context, after, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
667 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
668 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
669 case 's':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
670 if (inst.op == M68K_RTS) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
671 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
672 } else if (inst.op == M68K_RTE || inst.op == M68K_RTR) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
673 after = (read_dma_value((context->aregs[7]+2)/2) << 16) | read_dma_value((context->aregs[7]+2)/2 + 1);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
674 } else if(m68k_is_branch(&inst)) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
675 if (inst.op == M68K_BCC && inst.extra.cond != COND_TRUE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
676 branch_f = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
677 branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
678 insert_breakpoint(context, branch_t, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
679 } else if(inst.op == M68K_DBCC && inst.extra.cond != COND_FALSE) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
680 branch_t = after;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
681 branch_f = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
682 insert_breakpoint(context, branch_f, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
683 } else {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
684 after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
685 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
686 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
687 insert_breakpoint(context, after, (uint8_t *)debugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
688 debugging = 0;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
689 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
690 case 'v': {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
691 genesis_context * gen = context->system;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
692 //VDP debug commands
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
693 switch(input_buf[1])
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
694 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
695 case 's':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
696 vdp_print_sprite_table(gen->vdp);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
697 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
698 case 'r':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
699 vdp_print_reg_explain(gen->vdp);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
700 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
701 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
702 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
703 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
704 case 'z': {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
705 genesis_context * gen = context->system;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
706 //Z80 debug commands
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
707 switch(input_buf[1])
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
708 {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
709 case 'b':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
710 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
711 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
712 fputs("zb command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
713 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
714 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
715 value = strtol(param, NULL, 16);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
716 zinsert_breakpoint(gen->z80, value, (uint8_t *)zdebugger);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
717 new_bp = malloc(sizeof(bp_def));
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
718 new_bp->next = zbreakpoints;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
719 new_bp->address = value;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
720 new_bp->index = zbp_index++;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
721 zbreakpoints = new_bp;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
722 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
723 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
724 case 'p':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
725 param = find_param(input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
726 if (!param) {
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
727 fputs("zp command requires a parameter\n", stderr);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
728 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
729 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
730 zdebugger_print(gen->z80, input_buf[2] == '/' ? input_buf[3] : 0, param);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
731 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
732 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
733 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
734 case 'q':
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
735 puts("Quitting");
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
736 exit(0);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
737 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
738 default:
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
739 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf);
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
740 break;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
741 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
742 }
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
743 return context;
fb39534b6604 Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
744 }