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-rw-r--r--src/mess/includes/bw12.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/mess/includes/bw12.h b/src/mess/includes/bw12.h
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+++ b/src/mess/includes/bw12.h
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+#ifndef __BW12__
+#define __BW12__
+
+#include "machine/ram.h"
+
+#define SCREEN_TAG "screen"
+#define Z80_TAG "ic35"
+#define MC6845_TAG "ic14"
+#define UPD765_TAG "ic45"
+#define Z80SIO_TAG "ic15"
+#define PIT8253_TAG "ic34"
+#define PIA6821_TAG "ic16"
+#define MC1408_TAG "ic4"
+#define AY3600PRO002_TAG "ic74"
+#define CENTRONICS_TAG "centronics"
+#define FLOPPY_TIMER_TAG "motor_off"
+
+#define BW12_VIDEORAM_MASK 0x7ff
+#define BW12_CHARROM_MASK 0xfff
+
+class bw12_state : public driver_device
+{
+public:
+ bw12_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, Z80_TAG),
+ m_pia(*this, PIA6821_TAG),
+ m_fdc(*this, UPD765_TAG),
+ m_kbc(*this, AY3600PRO002_TAG),
+ m_crtc(*this, MC6845_TAG),
+ m_centronics(*this, CENTRONICS_TAG),
+ m_ram(*this, RAM_TAG),
+ m_floppy0(*this, FLOPPY_0),
+ m_floppy1(*this, FLOPPY_1),
+ m_floppy_timer(*this, FLOPPY_TIMER_TAG)
+ ,
+ m_video_ram(*this, "video_ram"){ }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<pia6821_device> m_pia;
+ required_device<device_t> m_fdc;
+ required_device<ay3600_device> m_kbc;
+ required_device<mc6845_device> m_crtc;
+ required_device<centronics_device> m_centronics;
+ required_device<ram_device> m_ram;
+ required_device<device_t> m_floppy0;
+ required_device<device_t> m_floppy1;
+ required_device<timer_device> m_floppy_timer;
+
+ virtual void machine_start();
+ virtual void machine_reset();
+
+ virtual void video_start();
+
+ void bankswitch();
+ void floppy_motor_off();
+ void set_floppy_motor_off_timer();
+ void ls259_w(int address, int data);
+
+ DECLARE_READ8_MEMBER( ls259_r );
+ DECLARE_WRITE8_MEMBER( ls259_w );
+ DECLARE_WRITE_LINE_MEMBER( fdc_intrq_w );
+ DECLARE_READ8_MEMBER( pia_pa_r );
+ DECLARE_READ_LINE_MEMBER( pia_cb1_r );
+ DECLARE_WRITE_LINE_MEMBER( pia_cb2_w );
+ DECLARE_WRITE_LINE_MEMBER( pit_out2_w );
+ DECLARE_READ_LINE_MEMBER( ay3600_shift_r );
+ DECLARE_READ_LINE_MEMBER( ay3600_control_r );
+ DECLARE_WRITE_LINE_MEMBER( ay3600_data_ready_w );
+
+ /* memory state */
+ int m_bank;
+
+ /* video state */
+ required_shared_ptr<UINT8> m_video_ram;
+ UINT8 *m_char_rom;
+
+ /* PIT state */
+ int m_pit_out2;
+
+ /* keyboard state */
+ int m_key_data[9];
+ int m_key_sin;
+ int m_key_stb;
+ int m_key_shift;
+
+ /* floppy state */
+ int m_fdc_int;
+ int m_motor_on;
+ int m_motor0;
+ int m_motor1;
+};
+
+#endif