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annotate m68k_to_x86.h @ 193:c66e4636f991

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Implement support for self-modifying code
author Mike Pavone <pavone@retrodev.com>
date Tue, 15 Jan 2013 00:14:36 -0800
parents 1db07e112bf7
children 7c227a8ec53d
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1 #include <stdint.h>
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2 #include "68kinst.h"
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4 #define NUM_MEM_AREAS 4
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5 #define NATIVE_MAP_CHUNKS (64*1024)
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6 #define NATIVE_CHUNK_SIZE ((16 * 1024 * 1024 / NATIVE_MAP_CHUNKS)/2)
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7 #define INVALID_OFFSET 0xFFFFFFFF
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8 #define EXTENSION_WORD 0xFFFFFFFE
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9 #define MAX_NATIVE_SIZE 255
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11 #define OPT_NATIVE_CALL_STACK 0x1
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13 typedef struct {
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14 uint8_t *base;
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15 int32_t *offsets;
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16 } native_map_slot;
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18 typedef struct deferred_addr {
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19 struct deferred_addr *next;
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20 uint8_t *dest;
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21 uint32_t address;
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22 } deferred_addr;
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24 typedef struct {
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25 uint32_t flags;
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26 int8_t dregs[8];
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27 int8_t aregs[8];
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28 native_map_slot *native_code_map;
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29 deferred_addr *deferred;
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30 uint8_t *cur_code;
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31 uint8_t *code_end;
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32 uint8_t **ram_inst_sizes;
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33 } x86_68k_options;
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35 typedef struct {
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36 uint8_t flags[5];
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37 uint8_t status;
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38 uint16_t reserved;
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39 uint32_t dregs[8];
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40 uint32_t aregs[9];
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41 uint32_t target_cycle; //cycle at which the next synchronization or interrupt occurs
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42 uint32_t current_cycle;
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43 uint32_t sync_cycle;
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44 uint32_t int_cycle;
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45 uint32_t int_num;
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46 uint16_t *mem_pointers[NUM_MEM_AREAS];
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47 void *next_context;
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48 uint16_t value;
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50 native_map_slot *native_code_map;
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51 void *options;
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52 uint8_t ram_code_flags[32/8];
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53 } m68k_context;
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55 uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts);
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56 uint8_t * translate_m68k_stream(uint32_t address, m68k_context * context);
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57 void start_68k_context(m68k_context * context, uint32_t address);
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58 void init_x86_68k_opts(x86_68k_options * opts);
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59 void init_68k_context(m68k_context * context, native_map_slot * native_code_map, void * opts);
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60 void m68k_reset(m68k_context * context);
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61 void insert_breakpoint(m68k_context * context, uint32_t address, uint8_t * bp_handler);
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62 void remove_breakpoint(m68k_context * context, uint32_t address);
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