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annotate z80_to_x86.h @ 345:29d2ca563499

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Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
author Mike Pavone <pavone@retrodev.com>
date Sun, 19 May 2013 13:47:47 -0700
parents 14a937097c2b
children 836585d389b8
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4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
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1 #ifndef Z80_TO_X86_H_
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2 #define Z80_TO_X86_H_
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3 #include "z80inst.h"
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4 #include "x86_backend.h"
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5
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6 #define ZNUM_MEM_AREAS 4
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7 #define ZMAX_NATIVE_SIZE 128
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8
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9 enum {
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10 ZF_C = 0,
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11 ZF_N,
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12 ZF_PV,
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13 ZF_H,
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14 ZF_Z,
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15 ZF_S,
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16 ZF_NUM
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17 };
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19 typedef struct {
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20 uint8_t * cur_code;
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21 uint8_t * code_end;
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22 uint8_t *ram_inst_sizes;
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23 deferred_addr * deferred;
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24 uint32_t flags;
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25 int8_t regs[Z80_UNUSED];
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26 } x86_z80_options;
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28 typedef struct {
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29 void * native_pc;
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30 uint16_t sp;
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31 uint8_t flags[ZF_NUM];
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32 uint16_t bank_reg;
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33 uint8_t regs[Z80_A+1];
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34 uint8_t im;
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35 uint8_t alt_regs[Z80_A+1];
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36 uint32_t target_cycle;
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37 uint32_t current_cycle;
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38 uint8_t alt_flags[ZF_NUM];
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39 uint8_t * mem_pointers[ZNUM_MEM_AREAS];
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40 uint8_t iff1;
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41 uint8_t iff2;
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42 uint16_t scratch1;
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43 uint16_t scratch2;
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44 void * extra_pc;
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45 uint32_t sync_cycle;
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46 uint32_t int_cycle;
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47 native_map_slot * static_code_map;
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48 native_map_slot * banked_code_map;
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49 void * options;
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50 void * system;
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51 uint8_t ram_code_flags[(8 * 1024)/128/8];
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52 uint32_t int_enable_cycle;
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53 } z80_context;
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54
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55 void translate_z80_stream(z80_context * context, uint32_t address);
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56 void init_x86_z80_opts(x86_z80_options * options);
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57 void init_z80_context(z80_context * context, x86_z80_options * options);
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58 uint8_t * z80_get_native_address(z80_context * context, uint32_t address);
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59 z80_context * z80_handle_code_write(uint32_t address, z80_context * context);
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60 void z80_run(z80_context * context);
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61 void z80_reset(z80_context * context);
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63 #endif //Z80_TO_X86_H_
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