85 lines
1.9 KiB
C++
85 lines
1.9 KiB
C++
/***************************************************************************
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dgnalpha.h
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Dragon Alpha
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***************************************************************************/
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#pragma once
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#ifndef __DGNALPHA__
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#define __DGNALPHA__
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#include "includes/dragon.h"
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#include "sound/ay8910.h"
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#include "machine/wd17xx.h"
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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/* devices */
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#define PIA2_TAG "pia2"
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#define AY8912_TAG "ay8912"
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#define WD2797_TAG "wd2797"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class dragon_alpha_state : public dragon64_state
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{
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public:
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dragon_alpha_state(const machine_config &mconfig, device_type type, const char *tag)
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: dragon64_state(mconfig, type, tag),
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m_pia_2(*this, PIA2_TAG),
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m_ay8912(*this, AY8912_TAG),
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m_fdc(*this, WD2797_TAG)
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{
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}
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required_device<pia6821_device> m_pia_2;
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required_device<ay8912_device> m_ay8912;
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required_device<wd2797_device> m_fdc;
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/* pia2 */
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DECLARE_WRITE8_MEMBER( pia2_pa_w );
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DECLARE_WRITE_LINE_MEMBER( pia2_firq_a );
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DECLARE_WRITE_LINE_MEMBER( pia2_firq_b );
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/* psg */
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DECLARE_READ8_MEMBER( psg_porta_read );
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DECLARE_WRITE8_MEMBER( psg_porta_write );
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/* fdc */
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DECLARE_WRITE_LINE_MEMBER( fdc_intrq_w );
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DECLARE_WRITE_LINE_MEMBER( fdc_drq_w );
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protected:
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/* driver overrides */
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virtual void device_start(void);
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virtual void device_reset(void);
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/* interrupts */
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virtual bool firq_get_line(void);
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/* PIA1 */
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virtual DECLARE_READ8_MEMBER( ff20_read );
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virtual DECLARE_WRITE8_MEMBER( ff20_write );
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private:
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UINT8 m_just_reset;
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/* modem */
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UINT8 modem_r(offs_t offset);
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void modem_w(offs_t offset, UINT8 data);
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};
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#endif /* __DGNALPHA__ */
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