#ifndef __TANDY2K__
#define __TANDY2K__
#include "emu.h"
#include "cpu/i86/i86.h"
#include "cpu/mcs48/mcs48.h"
#include "imagedev/flopdrv.h"
#include "imagedev/harddriv.h"
#include "machine/ctronics.h"
#include "machine/i8255.h"
#include "machine/i8251.h"
#include "machine/pit8253.h"
#include "machine/pic8259.h"
#include "machine/ram.h"
#include "machine/tandy2kb.h"
#include "machine/upd765.h"
#include "sound/speaker.h"
#include "video/crt9007.h"
#include "video/crt9021.h"
#include "video/crt9212.h"
#define SCREEN_TAG "screen"
#define I80186_TAG "u76"
#define I8255A_TAG "u75"
#define I8251A_TAG "u41"
#define I8253_TAG "u40"
#define I8259A_0_TAG "u42"
#define I8259A_1_TAG "u43"
#define I8272A_TAG "u121"
#define CRT9007_TAG "u16"
#define CRT9212_0_TAG "u55"
#define CRT9212_1_TAG "u15"
#define CRT9021B_TAG "u14"
#define WD1010_TAG "u18"
#define WD1100_11_TAG "u12"
#define CENTRONICS_TAG "centronics"
class tandy2k_state : public driver_device
{
public:
tandy2k_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, I80186_TAG),
m_uart(*this, I8251A_TAG),
m_pit(*this, I8253_TAG),
m_fdc(*this, I8272A_TAG),
m_pic0(*this, I8259A_0_TAG),
m_pic1(*this, I8259A_1_TAG),
m_vpac(*this, CRT9007_TAG),
m_drb0(*this, CRT9212_0_TAG),
m_drb1(*this, CRT9212_1_TAG),
m_vac(*this, CRT9021B_TAG),
m_centronics(*this, CENTRONICS_TAG),
m_speaker(*this, SPEAKER_TAG),
m_ram(*this, RAM_TAG),
m_floppy0(*this, FLOPPY_0),
m_floppy1(*this, FLOPPY_1),
m_kb(*this, TANDY2K_KEYBOARD_TAG),
m_kbdclk(0)
,
m_hires_ram(*this, "hires_ram"),
m_char_ram(*this, "char_ram"){ }
required_device<cpu_device> m_maincpu;
required_device<i8251_device> m_uart;
required_device<device_t> m_pit;
required_device<device_t> m_fdc;
required_device<device_t> m_pic0;
required_device<device_t> m_pic1;
required_device<crt9007_device> m_vpac;
required_device<crt9212_device> m_drb0;
required_device<crt9212_device> m_drb1;
required_device<crt9021_device> m_vac;
required_device<centronics_device> m_centronics;
required_device<device_t> m_speaker;
required_device<ram_device> m_ram;
required_device<device_t> m_floppy0;
required_device<device_t> m_floppy1;
required_device<tandy2k_keyboard_device> m_kb;
virtual void machine_start();
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void speaker_update();
void dma_request(int line, int state);
DECLARE_READ8_MEMBER( videoram_r );
DECLARE_READ8_MEMBER( enable_r );
DECLARE_WRITE8_MEMBER( enable_w );
DECLARE_WRITE8_MEMBER( dma_mux_w );
DECLARE_READ8_MEMBER( kbint_clr_r );
DECLARE_READ16_MEMBER( vpac_r );
DECLARE_WRITE16_MEMBER( vpac_w );
DECLARE_WRITE8_MEMBER( addr_ctrl_w );
DECLARE_WRITE_LINE_MEMBER( busdmarq0_w );
DECLARE_WRITE_LINE_MEMBER( rxrdy_w );
DECLARE_WRITE_LINE_MEMBER( txrdy_w );
DECLARE_WRITE_LINE_MEMBER( outspkr_w );
DECLARE_WRITE_LINE_MEMBER( intbrclk_w );
DECLARE_WRITE_LINE_MEMBER( rfrqpulse_w );
DECLARE_READ8_MEMBER( ppi_pb_r );
DECLARE_WRITE8_MEMBER( ppi_pc_w );
DECLARE_WRITE_LINE_MEMBER( vpac_vlt_w );
DECLARE_WRITE_LINE_MEMBER( vpac_drb_w );
DECLARE_WRITE_LINE_MEMBER( vac_ld_ht_w );
DECLARE_WRITE_LINE_MEMBER( kbdclk_w );
DECLARE_WRITE_LINE_MEMBER( kbddat_w );
/* DMA state */
UINT8 m_dma_mux;
/* keyboard state */
int m_kbdclk;
int m_kbddat;
UINT8 m_kbdin;
/* serial state */
int m_extclk;
int m_rxrdy;
int m_txrdy;
/* PPI state */
int m_pb_sel;
/* video state */
required_shared_ptr<UINT16> m_hires_ram;
required_shared_ptr<UINT16> m_char_ram;
UINT16 m_palette[16];
UINT8 m_vram_base;
int m_vidouts;
int m_clkspd;
int m_clkcnt;
/* sound state */
int m_outspkr;
int m_spkrdata;
};
#endif