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diff --git a/src/mame/includes/crvision.h b/src/mame/includes/crvision.h
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+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol, Curt Coder
+
+#ifndef __CRVISION__
+#define __CRVISION__
+
+
+#include "emu.h"
+#include "cpu/m6502/m6502.h"
+#include "imagedev/cassette.h"
+#include "machine/6821pia.h"
+#include "machine/buffer.h"
+#include "bus/centronics/ctronics.h"
+#include "bus/crvision/slot.h"
+#include "bus/crvision/rom.h"
+#include "machine/ram.h"
+#include "sound/sn76496.h"
+#include "sound/wave.h"
+#include "video/tms9928a.h"
+
+#define SCREEN_TAG "screen"
+#define M6502_TAG "u2"
+#define TMS9929_TAG "u3"
+#define PIA6821_TAG "u21"
+#define SN76489_TAG "u22"
+#define CENTRONICS_TAG "centronics"
+
+#define BANK_ROM1 "bank1"
+#define BANK_ROM2 "bank2"
+
+class crvision_state : public driver_device
+{
+public:
+ crvision_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, M6502_TAG),
+ m_pia(*this, PIA6821_TAG),
+ m_psg(*this, SN76489_TAG),
+ m_cassette(*this, "cassette"),
+ m_cart(*this, "cartslot"),
+ m_cent_data_out(*this, "cent_data_out"),
+ m_ram(*this, RAM_TAG),
+ m_inp_pa0(*this, "PA0"),
+ m_inp_pa1(*this, "PA1"),
+ m_inp_pa2(*this, "PA2"),
+ m_inp_pa3(*this, "PA3")
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<pia6821_device> m_pia;
+ required_device<sn76496_base_device> m_psg;
+ required_device<cassette_image_device> m_cassette;
+ required_device<crvision_cart_slot_device> m_cart;
+ required_device<output_latch_device> m_cent_data_out;
+ required_device<ram_device> m_ram;
+ optional_ioport_array<8> m_inp_pa0;
+ optional_ioport_array<8> m_inp_pa1;
+ optional_ioport_array<8> m_inp_pa2;
+ optional_ioport_array<8> m_inp_pa3;
+
+ UINT8 m_keylatch;
+ UINT8 read_keyboard(int pa);
+
+ DECLARE_WRITE8_MEMBER( pia_pa_w );
+ DECLARE_READ8_MEMBER( pia_pa_r );
+ DECLARE_READ8_MEMBER( pia_pb_r );
+ DECLARE_INPUT_CHANGED_MEMBER( trigger_nmi );
+
+protected:
+ virtual void machine_start();
+};
+
+class crvision_pal_state : public crvision_state
+{
+public:
+ crvision_pal_state(const machine_config &mconfig, device_type type, const char *tag)
+ : crvision_state(mconfig, type, tag)
+ { }
+};
+
+class laser2001_state : public crvision_state
+{
+public:
+ laser2001_state(const machine_config &mconfig, device_type type, const char *tag)
+ : crvision_state(mconfig, type, tag),
+ m_centronics(*this, CENTRONICS_TAG),
+ m_inp_y(*this, "Y"),
+ m_inp_joy(*this, "JOY")
+ { }
+
+ required_device<centronics_device> m_centronics;
+ required_ioport_array<8> m_inp_y;
+ required_ioport_array<4> m_inp_joy;
+
+ UINT8 m_joylatch;
+ int m_centronics_busy;
+ int m_psg_ready;
+
+ DECLARE_WRITE_LINE_MEMBER( write_centronics_busy );
+ DECLARE_WRITE_LINE_MEMBER( write_psg_ready );
+ DECLARE_READ8_MEMBER( pia_pa_r );
+ DECLARE_WRITE8_MEMBER( pia_pa_w );
+ DECLARE_READ8_MEMBER( pia_pb_r );
+ DECLARE_WRITE8_MEMBER( pia_pb_w );
+ DECLARE_READ_LINE_MEMBER( pia_ca1_r );
+ DECLARE_WRITE_LINE_MEMBER( pia_ca2_w );
+ DECLARE_READ_LINE_MEMBER( pia_cb1_r );
+ DECLARE_WRITE_LINE_MEMBER( pia_cb2_w );
+
+protected:
+ virtual void machine_start();
+};
+
+#endif // __CRVISION__