mirror of
https://github.com/holub/mame
synced 2025-05-25 23:35:26 +03:00
113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
/**********************************************************************
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NEC uPD65031 'BLINK' emulation
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**********************************************************************/
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#pragma once
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#ifndef __UPD65031__
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#define __UPD65031__
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#include "emu.h"
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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#define MCFG_UPD65031_ADD(_tag, _clock, _config) \
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MCFG_DEVICE_ADD((_tag), UPD65031, _clock) \
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MCFG_DEVICE_CONFIG(_config)
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#define UPD65031_INTERFACE(name) \
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const upd65031_interface (name) =
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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typedef void (*upd65031_screen_update_func)(device_t &device, bitmap_ind16 &bitmap, UINT16 sbf, UINT16 hires0, UINT16 hires1, UINT16 lores0, UINT16 lores1, int flash);
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#define UPD65031_SCREEN_UPDATE(name) void name(device_t &device, bitmap_ind16 &bitmap, UINT16 sbf, UINT16 hires0, UINT16 hires1, UINT16 lores0, UINT16 lores1, int flash)
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typedef void (*upd65031_memory_update_func)(device_t &device, int bank, UINT16 page, int rams);
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#define UPD65031_MEMORY_UPDATE(name) void name(device_t &device, int bank, UINT16 page, int rams)
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// ======================> upd65031_interface
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struct upd65031_interface
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{
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upd65031_screen_update_func m_screen_update_cb; // callback for update the LCD
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upd65031_memory_update_func m_out_mem_cb; // callback for update bankswitch
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devcb_read8 m_in_kb_cb; // kb read input
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devcb_write_line m_out_int_cb; // INT line out
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devcb_write_line m_out_nmi_cb; // NMI line out
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devcb_write_line m_out_spkr_cb; // Speaker line out
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};
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// ======================> upd65031_device
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class upd65031_device : public device_t,
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public upd65031_interface
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{
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public:
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// construction/destruction
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upd65031_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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DECLARE_READ8_MEMBER( read );
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DECLARE_WRITE8_MEMBER( write );
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DECLARE_WRITE_LINE_MEMBER( flp_w );
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DECLARE_WRITE_LINE_MEMBER( btl_w );
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UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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protected:
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// device-level overrides
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virtual void device_config_complete();
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virtual void device_start();
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virtual void device_reset();
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
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private:
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inline void interrupt_refresh();
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inline void update_rtc_interrupt();
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inline void set_mode(int mode);
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static const device_timer_id TIMER_RTC = 0;
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static const device_timer_id TIMER_FLASH = 1;
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static const device_timer_id TIMER_SPEAKER = 2;
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devcb_resolved_write_line m_out_int_func;
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devcb_resolved_write_line m_out_nmi_func;
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devcb_resolved_write_line m_out_spkr_func;
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devcb_resolved_read8 m_int_kb_func;
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int m_mode;
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UINT16 m_lcd_regs[5]; // LCD registers
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UINT8 m_tim[5]; // RTC registers
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UINT8 m_sr[4]; // segment registers
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UINT8 m_sta; // interrupt status
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UINT8 m_int; // interrupts mask
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UINT8 m_ack; // interrupts acknowledge
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UINT8 m_tsta; // timer interrupt status
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UINT8 m_tmk; // timer interrupt mask
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UINT8 m_tack; // timer interrupts acknowledge
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UINT8 m_com; // command register
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int m_flash; // cursor flash
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int m_speaker_state; // spkr line
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// timers
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emu_timer *m_rtc_timer;
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emu_timer *m_flash_timer;
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emu_timer *m_speaker_timer;
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};
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// device type definition
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extern const device_type UPD65031;
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#endif
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