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// license:BSD-3-Clause
// copyright-holders:Brad Oliver,Fabio Priuli
/*****************************************************************************
nes.h
Nintendo Entertainment System / Famicom
****************************************************************************/
#ifndef NES_H_
#define NES_H_
#include "video/ppu2c0x.h"
#include "bus/nes/nes_slot.h"
#include "bus/nes/nes_carts.h"
#include "bus/nes_ctrl/ctrl.h"
#include "sound/nes_apu.h"
/***************************************************************************
CONSTANTS
***************************************************************************/
#define NTSC_CLOCK N2A03_DEFAULTCLOCK /* 1.789772 MHz */
#define PAL_CLOCK (26601712.0/16) /* 1.662607 MHz */
#define NES_BATTERY_SIZE 0x2000
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/*PPU fast banking constants and structures */
#define CHRROM 0
#define CHRRAM 1
/*PPU nametable fast banking constants and structures */
#define CIRAM 0
#define ROM 1
#define EXRAM 2
#define MMC5FILL 3
#define CART_NTRAM 4
#define NES_BATTERY 0
#define NES_WRAM 1
class nes_state : public driver_device
{
public:
nes_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ppu(*this, "ppu"),
m_sound(*this, "nessound"),
m_ctrl1(*this, "ctrl1"),
m_ctrl2(*this, "ctrl2"),
m_exp(*this, "exp"),
m_cartslot(*this, "nes_slot"),
m_disk(*this, "disk")
{ }
/* video-related */
int m_last_frame_flip;
/* misc */
ioport_port *m_io_disksel;
UINT8 *m_vram;
UINT8 *m_ciram; //PPU nametable RAM - external to PPU!
required_device<cpu_device> m_maincpu;
required_device<ppu2c0x_device> m_ppu;
required_device<nesapu_device> m_sound;
required_device<nes_control_port_device> m_ctrl1;
required_device<nes_control_port_device> m_ctrl2;
optional_device<nes_control_port_device> m_exp;
optional_device<nes_cart_slot_device> m_cartslot;
optional_device<nes_disksys_device> m_disk;
int nes_ppu_vidaccess(int address, int data);
void ppu_nmi(int *ppu_regs);
DECLARE_READ8_MEMBER(nes_in0_r);
DECLARE_READ8_MEMBER(nes_in1_r);
DECLARE_WRITE8_MEMBER(nes_in0_w);
DECLARE_READ8_MEMBER(fc_in0_r);
DECLARE_READ8_MEMBER(fc_in1_r);
DECLARE_WRITE8_MEMBER(fc_in0_w);
DECLARE_WRITE8_MEMBER(nes_vh_sprite_dma_w);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
virtual void video_reset();
DECLARE_PALETTE_INIT(nes);
UINT32 screen_update_nes(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_READ8_MEMBER(psg_4015_r);
DECLARE_WRITE8_MEMBER(psg_4015_w);
DECLARE_WRITE8_MEMBER(psg_4017_w);
NESCTRL_BRIGHTPIXEL_CB(bright_pixel);
DECLARE_DRIVER_INIT(famicom);
// these are needed until we modernize the FDS controller
DECLARE_MACHINE_START(fds);
DECLARE_MACHINE_START(famitwin);
DECLARE_MACHINE_RESET(fds);
DECLARE_MACHINE_RESET(famitwin);
void setup_disk(nes_disksys_device *slot);
private:
memory_bank *m_prg_bank_mem[5];
};
#endif /* NES_H_ */
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