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diff --git a/src/mame/includes/tiki100.h b/src/mame/includes/tiki100.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+#pragma once
+
+#ifndef __TIKI100__
+#define __TIKI100__
+
+
+#include "emu.h"
+#include "bus/centronics/ctronics.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "formats/tiki100_dsk.h"
+#include "imagedev/cassette.h"
+#include "machine/ram.h"
+#include "machine/z80ctc.h"
+#include "machine/z80dart.h"
+#include "machine/z80pio.h"
+#include "machine/wd_fdc.h"
+#include "sound/ay8910.h"
+
+#define Z80_TAG "z80"
+#define Z80DART_TAG "z80dart"
+#define Z80PIO_TAG "z80pio"
+#define Z80CTC_TAG "z80ctc"
+#define FD1797_TAG "fd1797"
+#define AY8912_TAG "ay8912"
+#define RS232_A_TAG "rs232a"
+#define RS232_B_TAG "rs232b"
+#define CASSETTE_TAG "cassette"
+#define CENTRONICS_TAG "centronics"
+#define SCREEN_TAG "screen"
+
+#define TIKI100_VIDEORAM_SIZE 0x8000
+#define TIKI100_VIDEORAM_MASK 0x7fff
+
+#define BANK_ROM 0
+#define BANK_RAM 1
+#define BANK_VIDEO_RAM 2
+
+class tiki100_state : public driver_device
+{
+public:
+ tiki100_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, Z80_TAG),
+ m_ctc(*this, Z80CTC_TAG),
+ m_fdc(*this, FD1797_TAG),
+ m_pio(*this, Z80PIO_TAG),
+ m_dart(*this, Z80DART_TAG),
+ m_ram(*this, RAM_TAG),
+ m_floppy0(*this, FD1797_TAG":0"),
+ m_floppy1(*this, FD1797_TAG":1"),
+ m_cassette(*this, CASSETTE_TAG),
+ m_centronics(*this, CENTRONICS_TAG),
+ m_rom(*this, Z80_TAG),
+ m_video_ram(*this, "video_ram"),
+ m_y1(*this, "Y1"),
+ m_y2(*this, "Y2"),
+ m_y3(*this, "Y3"),
+ m_y4(*this, "Y4"),
+ m_y5(*this, "Y5"),
+ m_y6(*this, "Y6"),
+ m_y7(*this, "Y7"),
+ m_y8(*this, "Y8"),
+ m_y9(*this, "Y9"),
+ m_y10(*this, "Y10"),
+ m_y11(*this, "Y11"),
+ m_y12(*this, "Y12"),
+ m_palette(*this, "palette")
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<z80ctc_device> m_ctc;
+ required_device<fd1797_t> m_fdc;
+ required_device<z80pio_device> m_pio;
+ required_device<z80dart_device> m_dart;
+ required_device<ram_device> m_ram;
+ required_device<floppy_connector> m_floppy0;
+ required_device<floppy_connector> m_floppy1;
+ required_device<cassette_image_device> m_cassette;
+ required_device<centronics_device> m_centronics;
+ required_memory_region m_rom;
+ optional_shared_ptr<UINT8> m_video_ram;
+ required_ioport m_y1;
+ required_ioport m_y2;
+ required_ioport m_y3;
+ required_ioport m_y4;
+ required_ioport m_y5;
+ required_ioport m_y6;
+ required_ioport m_y7;
+ required_ioport m_y8;
+ required_ioport m_y9;
+ required_ioport m_y10;
+ required_ioport m_y11;
+ required_ioport m_y12;
+ required_device<palette_device> m_palette;
+
+ virtual void machine_start();
+ virtual void machine_reset();
+
+ UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+ DECLARE_READ8_MEMBER( gfxram_r );
+ DECLARE_WRITE8_MEMBER( gfxram_w );
+ DECLARE_READ8_MEMBER( keyboard_r );
+ DECLARE_WRITE8_MEMBER( keyboard_w );
+ DECLARE_WRITE8_MEMBER( video_mode_w );
+ DECLARE_WRITE8_MEMBER( palette_w );
+ DECLARE_WRITE8_MEMBER( system_w );
+ DECLARE_WRITE_LINE_MEMBER( ctc_z0_w );
+ DECLARE_WRITE_LINE_MEMBER( ctc_z2_w );
+ DECLARE_WRITE8_MEMBER( video_scroll_w );
+
+ DECLARE_READ8_MEMBER( pio_pb_r );
+ DECLARE_WRITE8_MEMBER( pio_pb_w );
+
+ DECLARE_FLOPPY_FORMATS( floppy_formats );
+
+ void bankswitch();
+
+ /* memory state */
+ int m_rome;
+ int m_vire;
+
+ /* video state */
+ UINT8 m_scroll;
+ UINT8 m_mode;
+ UINT8 m_palette_val;
+
+ /* keyboard state */
+ int m_keylatch;
+
+ TIMER_DEVICE_CALLBACK_MEMBER( ctc_tick );
+ TIMER_DEVICE_CALLBACK_MEMBER( tape_tick );
+
+ DECLARE_WRITE_LINE_MEMBER(write_centronics_ack);
+ DECLARE_WRITE_LINE_MEMBER(write_centronics_busy);
+ DECLARE_WRITE_LINE_MEMBER(write_centronics_perror);
+
+ int m_centronics_ack;
+ int m_centronics_busy;
+ int m_centronics_perror;
+};
+
+#endif