view blastem.h @ 437:afbea09d7fb4

Restore one of the VDP debugging modes
author Mike Pavone <pavone@retrodev.com>
date Mon, 15 Jul 2013 23:07:45 -0700
parents 7f84090ab1cd
children b7c3b2d22858
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#ifndef BLASTEM_H_
#define BLASTEM_H_

#include <stdint.h>
#include "m68k_to_x86.h"
#include "z80_to_x86.h"
#include "ym2612.h"
#include "vdp.h"
#include "psg.h"
#include "io.h"
#include "config.h"

#define RAM_FLAG_ODD  0x1800
#define RAM_FLAG_EVEN 0x1000
#define RAM_FLAG_BOTH 0x0000

#define CYCLE_NEVER 0xFFFFFFFF

typedef struct {
	m68k_context   *m68k;
	z80_context    *z80;
	vdp_context    *vdp;
	ym2612_context *ym;
	psg_context    *psg;
	uint8_t        *save_ram;
	uint32_t       save_ram_mask;
	uint32_t       save_flags;
	uint8_t        bank_regs[8];
	io_port        ports[3];
} genesis_context;

extern genesis_context * genesis;
extern int break_on_sync;
extern tern_node * config;

uint16_t read_dma_value(uint32_t address);
m68k_context * debugger(m68k_context * context, uint32_t address);

#endif //BLASTEM_H_