view z80_to_x86.h @ 345:29d2ca563499

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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#ifndef Z80_TO_X86_H_
#define Z80_TO_X86_H_
#include "z80inst.h"
#include "x86_backend.h"

#define ZNUM_MEM_AREAS 4
#define ZMAX_NATIVE_SIZE 128

enum {
	ZF_C = 0,
	ZF_N,
	ZF_PV,
	ZF_H,
	ZF_Z,
	ZF_S,
	ZF_NUM
};

typedef struct {
	uint8_t *       cur_code;
	uint8_t *       code_end;
	uint8_t         *ram_inst_sizes;
	deferred_addr * deferred;
	uint32_t        flags;
	int8_t          regs[Z80_UNUSED];
} x86_z80_options;

typedef struct {
	void *            native_pc;
	uint16_t          sp;
	uint8_t           flags[ZF_NUM];
	uint16_t          bank_reg;
	uint8_t           regs[Z80_A+1];
	uint8_t           im;
	uint8_t           alt_regs[Z80_A+1];
	uint32_t          target_cycle;
	uint32_t          current_cycle;
	uint8_t           alt_flags[ZF_NUM];
	uint8_t *         mem_pointers[ZNUM_MEM_AREAS];
	uint8_t           iff1;
	uint8_t           iff2;
	uint16_t          scratch1;
	uint16_t          scratch2;
	void *            extra_pc;
	uint32_t          sync_cycle;
	uint32_t          int_cycle;
	native_map_slot * static_code_map;
	native_map_slot * banked_code_map;
	void *            options;
	void *            system;
	uint8_t           ram_code_flags[(8 * 1024)/128/8];
	uint32_t          int_enable_cycle;
} z80_context;

void translate_z80_stream(z80_context * context, uint32_t address);
void init_x86_z80_opts(x86_z80_options * options);
void init_z80_context(z80_context * context, x86_z80_options * options);
uint8_t * z80_get_native_address(z80_context * context, uint32_t address);
z80_context * z80_handle_code_write(uint32_t address, z80_context * context);
void z80_run(z80_context * context);
void z80_reset(z80_context * context);

#endif //Z80_TO_X86_H_