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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/**********************************************************************
NEC uPD65031 'BLINK' emulation
**********************************************************************/
#ifndef MAME_MACHINE_UPD65031_H
#define MAME_MACHINE_UPD65031_H
#pragma once
#include "diserial.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
#define UPD65031_SCREEN_UPDATE(_name) void _name(bitmap_ind16 &bitmap, uint16_t sbf, uint16_t hires0, uint16_t hires1, uint16_t lores0, uint16_t lores1, int flash)
#define UPD65031_MEMORY_UPDATE(_name) void _name(int bank, uint16_t page, int rams)
// ======================> upd65031_device
class upd65031_device : public device_t,
public device_serial_interface
{
public:
typedef device_delegate<void (bitmap_ind16 &bitmap, uint16_t sbf, uint16_t hires0, uint16_t hires1, uint16_t lores0, uint16_t lores1, int flash)> screen_update_delegate;
typedef device_delegate<void (int bank, uint16_t page, int rams)> memory_update_delegate;
// construction/destruction
upd65031_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto kb_rd_callback() { return m_read_kb.bind(); }
auto int_wr_callback() { return m_write_int.bind(); }
auto nmi_wr_callback() { return m_write_nmi.bind(); }
auto spkr_wr_callback() { return m_write_spkr.bind(); }
auto txd_wr_callback() { return m_write_txd.bind(); }
auto rts_wr_callback() { return m_write_rts.bind(); }
auto dtr_wr_callback() { return m_write_dtr.bind(); }
auto vpp_wr_callback() { return m_write_vpp.bind(); }
template <typename... T> void set_screen_update_callback(T &&... args) { m_screen_update_cb.set(std::forward<T>(args)...); }
template <typename... T> void set_memory_update_callback(T &&... args) { m_out_mem_cb.set(std::forward<T>(args)...); }
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
DECLARE_WRITE_LINE_MEMBER( flp_w );
DECLARE_WRITE_LINE_MEMBER( btl_w );
DECLARE_WRITE_LINE_MEMBER( rxd_w ) { rx_w(state); }
DECLARE_WRITE_LINE_MEMBER( cts_w );
DECLARE_WRITE_LINE_MEMBER( dcd_w );
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
TIMER_CALLBACK_MEMBER(rtc_tick);
TIMER_CALLBACK_MEMBER(flash_tick);
TIMER_CALLBACK_MEMBER(speaker_tick);
virtual void tra_callback() override;
virtual void tra_complete() override;
virtual void rcv_complete() override;
private:
inline void interrupt_refresh();
inline void update_rtc_interrupt();
inline void update_uart_interrupt();
inline void update_tx(int state);
inline void set_mode(int mode);
devcb_read8 m_read_kb;
devcb_write_line m_write_int;
devcb_write_line m_write_nmi;
devcb_write_line m_write_spkr;
devcb_write_line m_write_txd;
devcb_write_line m_write_rts;
devcb_write_line m_write_dtr;
devcb_write_line m_write_vpp;
screen_update_delegate m_screen_update_cb; // callback for update the LCD
memory_update_delegate m_out_mem_cb; // callback for update bankswitch
int m_mode;
uint16_t m_lcd_regs[5]; // LCD registers
uint8_t m_tim[5]; // RTC registers
uint8_t m_sr[4]; // segment registers
uint8_t m_sta; // interrupt status
uint8_t m_int; // interrupts mask
uint8_t m_ack; // interrupts acknowledge
uint8_t m_tsta; // timer interrupt status
uint8_t m_tmk; // timer interrupt mask
uint8_t m_tack; // timer interrupts acknowledge
uint8_t m_com; // command register
uint8_t m_uit; // UART interrupt status
uint8_t m_umk; // UART interrupt mask
uint8_t m_txc; // UART transmit control register
uint8_t m_rxc; // UART receive control register
uint8_t m_rxe; // UART extended receive data register
int m_txd_line; // TXD line
int m_flash; // cursor flash
int m_speaker_state; // spkr line
// timers
emu_timer *m_rtc_timer;
emu_timer *m_flash_timer;
emu_timer *m_speaker_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(UPD65031, upd65031_device)
#endif // MAME_MACHINE_UPD65031_H
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