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/*****************************************************************************
*
* includes/zx.h
*
****************************************************************************/
#ifndef ZX_H_
#define ZX_H_
#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/speaker.h"
#include "sound/wave.h"
#include "imagedev/cassette.h"
#include "formats/zx81_p.h"
#include "machine/ram.h"
class zx_state : public driver_device
{
public:
zx_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_ram(*this, RAM_TAG)
, m_screen(*this, "screen")
, m_cassette(*this, CASSETTE_TAG)
, m_speaker(*this, SPEAKER_TAG)
, m_region_maincpu(*this, "maincpu")
, m_region_gfx1(*this, "gfx1")
, m_io_row0(*this, "ROW0")
, m_io_row1(*this, "ROW1")
, m_io_row2(*this, "ROW2")
, m_io_row3(*this, "ROW3")
, m_io_row4(*this, "ROW4")
, m_io_row5(*this, "ROW5")
, m_io_row6(*this, "ROW6")
, m_io_row7(*this, "ROW7")
, m_io_config(*this, "CONFIG")
{ }
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
bitmap_ind16 m_bitmap;
DECLARE_READ8_MEMBER(zx_ram_r);
DECLARE_READ8_MEMBER(zx80_io_r);
DECLARE_READ8_MEMBER(zx81_io_r);
DECLARE_READ8_MEMBER(pc8300_io_r);
DECLARE_READ8_MEMBER(pow3000_io_r);
DECLARE_WRITE8_MEMBER(zx80_io_w);
DECLARE_WRITE8_MEMBER(zx81_io_w);
emu_timer *m_ula_nmi;
int m_ula_irq_active;
int m_ula_frame_vsync;
int m_ula_scanline_count;
UINT8 m_tape_bit;
UINT8 m_speaker_state;
int m_old_x;
int m_old_y;
UINT8 m_old_c;
UINT8 m_charline[32];
UINT8 m_charline_ptr;
int m_offs1;
void zx_ula_bkgnd(UINT8 color);
DECLARE_WRITE8_MEMBER(zx_ram_w);
DECLARE_DIRECT_UPDATE_MEMBER(zx_setdirect);
DECLARE_DIRECT_UPDATE_MEMBER(pc8300_setdirect);
DECLARE_DIRECT_UPDATE_MEMBER(pow3000_setdirect);
DECLARE_DRIVER_INIT(zx);
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
DECLARE_PALETTE_INIT(ts1000);
DECLARE_MACHINE_RESET(pc8300);
DECLARE_MACHINE_RESET(pow3000);
void screen_eof_zx(screen_device &screen, bool state);
TIMER_CALLBACK_MEMBER(zx_tape_pulse);
TIMER_CALLBACK_MEMBER(zx_ula_nmi);
TIMER_CALLBACK_MEMBER(zx_ula_irq);
protected:
required_device<cpu_device> m_maincpu;
required_device<ram_device> m_ram;
required_device<screen_device> m_screen;
required_device<cassette_image_device> m_cassette;
required_device<device_t> m_speaker;
required_memory_region m_region_maincpu;
optional_memory_region m_region_gfx1;
required_ioport m_io_row0;
required_ioport m_io_row1;
required_ioport m_io_row2;
required_ioport m_io_row3;
required_ioport m_io_row4;
required_ioport m_io_row5;
required_ioport m_io_row6;
required_ioport m_io_row7;
optional_ioport m_io_config;
void zx_ula_r(int offs, memory_region *region, const UINT8 param);
};
#endif /* ZX_H_ */
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