mirror of
https://github.com/RetroDECK/Supermodel.git
synced 2024-11-24 22:55:40 +00:00
118 lines
3 KiB
C++
118 lines
3 KiB
C++
/**
|
|
** Supermodel
|
|
** A Sega Model 3 Arcade Emulator.
|
|
** Copyright 2011 Bart Trzynadlowski, Nik Henson
|
|
**
|
|
** This file is part of Supermodel.
|
|
**
|
|
** Supermodel is free software: you can redistribute it and/or modify it under
|
|
** the terms of the GNU General Public License as published by the Free
|
|
** Software Foundation, either version 3 of the License, or (at your option)
|
|
** any later version.
|
|
**
|
|
** Supermodel is distributed in the hope that it will be useful, but WITHOUT
|
|
** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
** more details.
|
|
**
|
|
** You should have received a copy of the GNU General Public License along
|
|
** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
|
|
**/
|
|
|
|
/*
|
|
* RTC72421.cpp
|
|
*
|
|
* Epson RTC-72421 implementation.
|
|
*
|
|
* TO-DO List:
|
|
* -----------
|
|
* - Rather than returning the host system time, should compute the "virtual"
|
|
* time inside the Model 3, which could differ.
|
|
* - Writes do nothing yet.
|
|
*/
|
|
|
|
#include <time.h>
|
|
#include "Supermodel.h"
|
|
|
|
|
|
/******************************************************************************
|
|
Emulation Functions
|
|
******************************************************************************/
|
|
|
|
UINT8 CRTC72421::ReadRegister(unsigned reg)
|
|
{
|
|
time_t currentTime;
|
|
struct tm *Time;
|
|
|
|
time(¤tTime);
|
|
Time = localtime(¤tTime);
|
|
|
|
switch (reg&0xF)
|
|
{
|
|
case 0: // 1-second digit
|
|
return (Time->tm_sec % 10) & 0xF;
|
|
case 1: // 10-seconds digit
|
|
return (Time->tm_sec / 10) & 0x7;
|
|
case 2: // 1-minute digit
|
|
return (Time->tm_min % 10) & 0xF;
|
|
case 3: // 10-minute digit
|
|
return (Time->tm_min / 10) & 0x7;
|
|
case 4: // 1-hour digit
|
|
return (Time->tm_hour % 10) & 0xF;
|
|
case 5: // 10-hours digit
|
|
return (Time->tm_hour / 10) & 0x7;
|
|
case 6: // 1-day digit (days in month)
|
|
return (Time->tm_mday % 10) & 0xF;
|
|
case 7: // 10-days digit
|
|
return (Time->tm_mday / 10) & 0x3;
|
|
case 8: // 1-month digit
|
|
return ((Time->tm_mon + 1) % 10) & 0xF;
|
|
case 9: // 10-months digit
|
|
return ((Time->tm_mon + 1) / 10) & 0x1;
|
|
case 10: // 1-year digit
|
|
return (Time->tm_year % 10) & 0xF;
|
|
case 11: // 10-years digit
|
|
return ((Time->tm_year % 100) / 10) & 0xF;
|
|
case 12: // day of the week
|
|
return Time->tm_wday & 0x7;
|
|
case 13:
|
|
break;
|
|
case 14:
|
|
break;
|
|
case 15:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void CRTC72421::WriteRegister(unsigned reg, UINT8 data)
|
|
{
|
|
// TO-DO: emulate me!
|
|
}
|
|
|
|
void CRTC72421::Reset(void)
|
|
{
|
|
// nothing to do
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
Initialization and Shutdown
|
|
******************************************************************************/
|
|
|
|
void CRTC72421::Init(void)
|
|
{
|
|
// this function really only exists for consistency with other device classes
|
|
}
|
|
|
|
CRTC72421::CRTC72421(void)
|
|
{
|
|
DebugLog("Built RTC-72421\n");
|
|
}
|
|
|
|
CRTC72421::~CRTC72421(void)
|
|
{
|
|
DebugLog("Destroyed RTC-72421\n");
|
|
}
|