view blastem.h @ 921:2be771c4dfbd

After reviewing the results of my test ROM again it seems pretty clear that the VBlank flag gets set at the same time as the vcounter changes
author Michael Pavone <pavone@retrodev.com>
date Tue, 26 Jan 2016 19:23:10 -0800
parents 9f149f0e98b7
children 5e4fb650de58
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/*
 Copyright 2013 Michael Pavone
 This file is part of BlastEm.
 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
*/
#ifndef BLASTEM_H_
#define BLASTEM_H_

#include <stdint.h>
#include "m68k_core.h"
#include "z80_to_x86.h"
#include "ym2612.h"
#include "vdp.h"
#include "psg.h"
#include "io.h"
#include "config.h"
#include "romdb.h"
#include "arena.h"

typedef struct {
	m68k_context   *m68k;
	z80_context    *z80;
	vdp_context    *vdp;
	ym2612_context *ym;
	psg_context    *psg;
	uint16_t       *cart;
	uint16_t       *work_ram;
	uint8_t        *zram;
	void           *extra;
	arena          *arena;
	char           *next_rom;
	uint8_t        *save_storage;
	eeprom_map     *eeprom_map;
	uint32_t       num_eeprom;
	uint32_t       save_size;
	uint32_t       save_ram_mask;
	uint32_t       master_clock; //Current master clock value
	uint32_t       normal_clock; //Normal master clock (used to restore master clock after turbo mode)
	uint32_t       frame_end;
	uint32_t       max_cycles;
	uint8_t        bank_regs[8];
	uint16_t       mapper_start_index;
	uint8_t        save_type;
	io_port        ports[3];
	uint8_t        bus_busy;
	eeprom_state   eeprom;
} genesis_context;

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

#define RAM_WORDS 32 * 1024
#define Z80_RAM_BYTES 8 * 1024

extern uint16_t *cart;
extern uint16_t *ram;
extern uint8_t z80_ram[Z80_RAM_BYTES];

uint16_t read_dma_value(uint32_t address);
m68k_context * sync_components(m68k_context *context, uint32_t address);
m68k_context * debugger(m68k_context * context, uint32_t address);
void set_speed_percent(genesis_context * context, uint32_t percent);

#endif //BLASTEM_H_