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Basic float support in debug language
author Michael Pavone <pavone@retrodev.com>
date Tue, 07 Nov 2023 22:19:21 -0800
parents b6c5a0fa3dfc
children c822bb628fc3
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1 #ifndef DEBUG_H_
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2 #define DEBUG_H_
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3
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4 #include <stdint.h>
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5 #include "tern.h"
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6 #include "m68k_core.h"
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7 #ifdef NEW_CORE
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8 #include "z80.h"
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9 #else
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10 #include "z80_to_x86.h"
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11 #endif
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12 #include "disasm.h"
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13
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14 typedef enum {
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15 TOKEN_NONE,
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16 TOKEN_INT,
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17 TOKEN_DECIMAL,
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18 TOKEN_NAME,
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19 TOKEN_ARRAY,
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20 TOKEN_OPER,
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21 TOKEN_SIZE,
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22 TOKEN_LBRACKET,
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23 TOKEN_RBRACKET,
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24 TOKEN_LPAREN,
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25 TOKEN_RPAREN
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26 } token_type;
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27
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28 typedef struct {
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29 token_type type;
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30 union {
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31 char *str;
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32 char op[3];
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33 uint32_t num;
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34 float f;
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35 } v;
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36 } token;
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37
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38 typedef enum {
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39 EXPR_NONE,
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40 EXPR_SCALAR,
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41 EXPR_UNARY,
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42 EXPR_BINARY,
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43 EXPR_SIZE,
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44 EXPR_MEM,
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45 EXPR_NAMESPACE
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46 } expr_type;
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47
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48 typedef struct expr expr;
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49
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50 struct expr {
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51 expr_type type;
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52 expr *left;
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53 expr *right;
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54 token op;
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55 };
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56
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57 enum {
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58 DBG_VAL_U32,
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59 DBG_VAL_F32,
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60 DBG_VAL_ARRAY,
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61 DBG_VAL_STRING,
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62 DBG_VAL_FUNC
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63 };
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64
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65 typedef struct {
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66 union {
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67 uint32_t u32;
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68 float f32;
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69 } v;
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70 uint32_t type;
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71 } debug_val;
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72
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73 typedef struct {
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74 char *raw;
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75 expr *parsed;
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76 debug_val value;
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77 } command_arg;
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78
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79 typedef struct debug_root debug_root;
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80 typedef struct parsed_command parsed_command;
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81 typedef uint8_t (*cmd_fun)(debug_root *root, parsed_command *cmd);
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82
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83 typedef struct {
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84 const char **names;
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85 const char *usage;
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86 const char *desc;
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87 cmd_fun impl;
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88 int min_args;
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89 int max_args;
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90 uint8_t skip_eval;
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91 uint8_t visited;
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92 uint8_t has_block;
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93 uint8_t accepts_else;
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94 uint8_t raw_args;
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95 } command_def;
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96
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97 typedef struct disp_def {
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98 struct disp_def *next;
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99 char *format;
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100 int num_args;
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101 command_arg *args;
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102 uint32_t index;
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103 } disp_def;
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104
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105 typedef struct {
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106 parsed_command *commands;
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107 int num_commands;
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108 } command_block;
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109
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110 struct parsed_command {
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111 command_def *def;
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112 char *format;
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113 char *raw;
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114 command_arg *args;
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115 int num_args;
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116 command_block block;
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117 command_block else_block;
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118 };
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119
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120 enum {
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121 BP_TYPE_CPU,
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122 BP_TYPE_VDPREG,
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123 BP_TYPE_VDPDMA,
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124 BP_TYPE_VDPDATA
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125 };
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126
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127 typedef struct bp_def {
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128 struct bp_def *next;
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129 parsed_command *commands;
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130 expr *condition;
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131 uint32_t num_commands;
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132 uint32_t address;
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133 uint32_t index;
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134 uint32_t mask;
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135 uint8_t type;
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136 } bp_def;
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137
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138 typedef struct debug_array debug_array;
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139 typedef debug_val (*debug_array_get)(debug_array *array, uint32_t index);
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140 typedef void (*debug_array_set)(debug_array *array, uint32_t index, debug_val value);
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141 typedef void (*debug_array_append)(debug_array *array, debug_val value);
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142
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143 struct debug_array{
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144 debug_array_get get;
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145 debug_array_set set;
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146 debug_array_append append;
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147 void *base;
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148 uint32_t size;
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149 uint32_t storage;
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150 };
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151
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152 typedef struct debug_var debug_var;
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153 typedef debug_val (*debug_var_get)(debug_var *var);
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154 typedef void (*debug_var_set)(debug_var *var, debug_val val);
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155
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156 struct debug_var {
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157 debug_var_get get;
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158 debug_var_set set;
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159 void *ptr;
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160 debug_val val;
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161 };
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162
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163 typedef debug_var *(*resolver)(debug_root *root, const char *name);
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164 typedef uint8_t (*reader)(debug_root *root, uint32_t *out, char size);
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165 typedef uint8_t (*writer)(debug_root *root, uint32_t address, uint32_t value, char size);
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166
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167 struct debug_root {
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168 void *cpu_context;
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169 bp_def *breakpoints;
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170 disp_def *displays;
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171 tern_node *commands;
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172 tern_node *variables;
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173 tern_node *symbols;
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174 tern_node *other_roots;
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175 disasm_context *disasm;
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176 reader read_mem;
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177 writer write_mem;
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178 parsed_command last_cmd;
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179 uint32_t bp_index;
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180 uint32_t disp_index;
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181 uint32_t branch_t;
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182 uint32_t branch_f;
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183 void *inst;
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184 uint32_t address;
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185 uint32_t after;
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186 };
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187
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188 debug_root *find_root(void *cpu);
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189 debug_root *find_m68k_root(m68k_context *context);
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190 debug_root *find_z80_root(z80_context *context);
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191 bp_def ** find_breakpoint(bp_def ** cur, uint32_t address, uint8_t type);
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192 bp_def ** find_breakpoint_idx(bp_def ** cur, uint32_t index);
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193 void add_display(disp_def ** head, uint32_t *index, char format_char, char * param);
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194 void remove_display(disp_def ** head, uint32_t index);
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195 void debugger(m68k_context * context, uint32_t address);
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196 z80_context * zdebugger(z80_context * context, uint16_t address);
1921
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197 void print_m68k_help();
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198 void print_z80_help();
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199
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200 #endif //DEBUG_H_