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annotate m68k_to_x86.h @ 18:3e7bfde7606e

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M68K to x86 translation works for a limited subset of instructions and addressing modes
author Mike Pavone <pavone@retrodev.com>
date Tue, 04 Dec 2012 19:13:12 -0800
parents 2bdad0f52f42
children 3b79cbcf6846
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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 (32*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 0xFFFF
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9 typedef struct {
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10 uint8_t *base;
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11 uint16_t *offsets;
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12 } native_map_slot;
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14 typedef struct deferred_addr {
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15 struct deferred_addr *next;
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16 uint8_t *dest;
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17 uint32_t address;
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18 } deferred_addr;
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20 typedef struct {
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21 uint32_t flags;
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22 int8_t dregs[8];
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23 int8_t aregs[8];
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24 native_map_slot *native_code_map;
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25 deferred_addr *deferred;
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27 } x86_68k_options;
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29 typedef struct {
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30 uint8_t flags[5];
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31 uint8_t status;
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32 uint16_t reserved;
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33 uint32_t dregs[8];
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34 uint32_t aregs[8];
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35 uint32_t target_cycle;
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36 uint32_t current_cycle;
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37 uint16_t *mem_pointers[NUM_MEM_AREAS];
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38 native_map_slot *native_code_map;
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39 void *options;
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40 } m68k_context;
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42 uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts);
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43 uint8_t * translate_m68k_stream(uint8_t * dst, uint8_t * dst_end, uint32_t address, m68k_context * context);
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44 void start_68k_context(m68k_context * context, uint32_t address);
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45 void init_x86_68k_opts(x86_68k_options * opts);
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46 void init_68k_context(m68k_context * context, native_map_slot * native_code_map, void * opts);