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annotate m68k_to_x86.h @ 208:3457dc6fd558

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Tweaks to make blastem compatible with m68k-tester
author Mike Pavone <pavone@retrodev.com>
date Sat, 26 Jan 2013 01:33:32 -0800
parents 209a37eed3e7
children 464513050c85
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1 #ifndef M68K_TO_X86_H_
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2 #define M68K_TO_X86_H_
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3 #include <stdint.h>
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4 #include <stdio.h>
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5 //#include "68kinst.h"
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6 struct m68kinst;
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7
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8 #define NUM_MEM_AREAS 4
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9 #define NATIVE_MAP_CHUNKS (64*1024)
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10 #define NATIVE_CHUNK_SIZE ((16 * 1024 * 1024 / NATIVE_MAP_CHUNKS)/2)
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11 #define INVALID_OFFSET 0xFFFFFFFF
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12 #define EXTENSION_WORD 0xFFFFFFFE
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13 #define MAX_NATIVE_SIZE 255
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15 #define OPT_NATIVE_CALL_STACK 0x1
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17 typedef struct {
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18 uint8_t *base;
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19 int32_t *offsets;
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20 } native_map_slot;
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22 typedef struct deferred_addr {
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23 struct deferred_addr *next;
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24 uint8_t *dest;
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25 uint32_t address;
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26 } deferred_addr;
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28 typedef struct {
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29 uint32_t flags;
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30 int8_t dregs[8];
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31 int8_t aregs[8];
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32 native_map_slot *native_code_map;
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33 deferred_addr *deferred;
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34 uint8_t *cur_code;
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35 uint8_t *code_end;
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36 uint8_t **ram_inst_sizes;
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37 FILE *address_log;
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38 } x86_68k_options;
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40 typedef struct {
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41 uint8_t flags[5];
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42 uint8_t status;
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43 uint16_t reserved;
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44 uint32_t dregs[8];
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45 uint32_t aregs[9];
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46 uint32_t target_cycle; //cycle at which the next synchronization or interrupt occurs
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47 uint32_t current_cycle;
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48 uint32_t sync_cycle;
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49 uint32_t int_cycle;
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50 uint32_t int_num;
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51 uint16_t *mem_pointers[NUM_MEM_AREAS];
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52 void *next_context;
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53 uint16_t value;
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55 native_map_slot *native_code_map;
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56 void *options;
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57 uint8_t ram_code_flags[32/8];
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58 } m68k_context;
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60 uint8_t * translate_m68k(uint8_t * dst, struct m68kinst * inst, x86_68k_options * opts);
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61 uint8_t * translate_m68k_stream(uint32_t address, m68k_context * context);
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62 void start_68k_context(m68k_context * context, uint32_t address);
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63 void init_x86_68k_opts(x86_68k_options * opts);
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64 void init_68k_context(m68k_context * context, native_map_slot * native_code_map, void * opts);
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65 void m68k_reset(m68k_context * context);
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66 void insert_breakpoint(m68k_context * context, uint32_t address, uint8_t * bp_handler);
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67 void remove_breakpoint(m68k_context * context, uint32_t address);
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68 m68k_context * m68k_handle_code_write(uint32_t address, m68k_context * context);
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70 #endif //M68K_TO_X86_H_
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