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/*****************************************************************************
*
* includes/nascom1.h
*
****************************************************************************/
#ifndef NASCOM1_H_
#define NASCOM1_H_
#include "imagedev/snapquik.h"
#include "machine/wd17xx.h"
struct nascom1_portstat_t
{
UINT8 stat_flags;
UINT8 stat_count;
};
struct nascom2_fdc_t
{
UINT8 select;
UINT8 irq;
UINT8 drq;
};
class nascom1_state : public driver_device
{
public:
nascom1_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_videoram(*this, "videoram"){ }
required_shared_ptr<UINT8> m_videoram;
device_t *m_hd6402;
int m_tape_size;
UINT8 *m_tape_image;
int m_tape_index;
nascom1_portstat_t m_portstat;
nascom2_fdc_t m_nascom2_fdc;
DECLARE_READ8_MEMBER(nascom2_fdc_select_r);
DECLARE_WRITE8_MEMBER(nascom2_fdc_select_w);
DECLARE_READ8_MEMBER(nascom2_fdc_status_r);
DECLARE_READ8_MEMBER(nascom1_port_00_r);
DECLARE_WRITE8_MEMBER(nascom1_port_00_w);
DECLARE_READ8_MEMBER(nascom1_port_01_r);
DECLARE_WRITE8_MEMBER(nascom1_port_01_w);
DECLARE_READ8_MEMBER(nascom1_port_02_r);
DECLARE_DRIVER_INIT(nascom1);
virtual void machine_reset();
UINT32 screen_update_nascom1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
UINT32 screen_update_nascom2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE_LINE_MEMBER(nascom2_fdc_intrq_w);
DECLARE_WRITE_LINE_MEMBER(nascom2_fdc_drq_w);
DECLARE_READ8_MEMBER(nascom1_hd6402_si);
DECLARE_WRITE8_MEMBER(nascom1_hd6402_so);
DECLARE_DEVICE_IMAGE_LOAD_MEMBER( nascom1_cassette );
DECLARE_DEVICE_IMAGE_UNLOAD_MEMBER( nascom1_cassette );
};
/*----------- defined in machine/nascom1.c -----------*/
extern const wd17xx_interface nascom2_wd17xx_interface;
SNAPSHOT_LOAD( nascom1 );
#endif /* NASCOM1_H_ */
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