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annotate z80_to_x86.h @ 573:29d99db6f55d

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author Michael Pavone <pavone@retrodev.com>
date Mon, 03 Mar 2014 22:16:41 -0800
parents acec5464fa1e
children 6b248602ab84 ea80559c67cb
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #ifndef Z80_TO_X86_H_
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7 #define Z80_TO_X86_H_
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8 #include "z80inst.h"
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9 #include "backend.h"
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11 #define ZNUM_MEM_AREAS 4
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12 #define ZMAX_NATIVE_SIZE 128
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14 enum {
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15 ZF_C = 0,
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16 ZF_N,
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17 ZF_PV,
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18 ZF_H,
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19 ZF_Z,
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20 ZF_S,
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21 ZF_NUM
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22 };
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24 typedef struct {
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25 uint8_t * cur_code;
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26 uint8_t * code_end;
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27 uint8_t *ram_inst_sizes;
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28 deferred_addr * deferred;
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29 uint32_t flags;
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30 int8_t regs[Z80_UNUSED];
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31 } x86_z80_options;
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33 typedef struct {
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34 void * native_pc;
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35 uint16_t sp;
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36 uint8_t flags[ZF_NUM];
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37 uint16_t bank_reg;
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38 uint8_t regs[Z80_A+1];
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39 uint8_t im;
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40 uint8_t alt_regs[Z80_A+1];
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41 uint32_t target_cycle;
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42 uint32_t current_cycle;
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43 uint8_t alt_flags[ZF_NUM];
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44 uint8_t * mem_pointers[ZNUM_MEM_AREAS];
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45 uint8_t iff1;
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46 uint8_t iff2;
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47 uint16_t scratch1;
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48 uint16_t scratch2;
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49 void * extra_pc;
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50 uint32_t sync_cycle;
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51 uint32_t int_cycle;
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52 native_map_slot * static_code_map;
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53 native_map_slot * banked_code_map;
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54 void * options;
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55 void * system;
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56 uint8_t ram_code_flags[(8 * 1024)/128/8];
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57 uint32_t int_enable_cycle;
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58 uint16_t pc;
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59 } z80_context;
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60
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61 void translate_z80_stream(z80_context * context, uint32_t address);
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62 void init_x86_z80_opts(x86_z80_options * options);
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63 void init_z80_context(z80_context * context, x86_z80_options * options);
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64 uint8_t * z80_get_native_address(z80_context * context, uint32_t address);
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65 uint8_t * z80_get_native_address_trans(z80_context * context, uint32_t address);
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66 z80_context * z80_handle_code_write(uint32_t address, z80_context * context);
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67 void z80_run(z80_context * context);
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68 void z80_reset(z80_context * context);
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69 void zinsert_breakpoint(z80_context * context, uint16_t address, uint8_t * bp_handler);
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70 void zremove_breakpoint(z80_context * context, uint16_t address);
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72 #endif //Z80_TO_X86_H_
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