beetle-pce-fast-libretro/mednafen/gba/RTC.h

63 lines
1.4 KiB
C++

// -*- C++ -*-
// VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
// Copyright (C) 1999-2003 Forgotten
// Copyright (C) 2004 Forgotten and the VBA development team
// This program 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 2, or(at your option)
// any later version.
//
// This program 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 this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef VBA_RTC_H
#define VBA_RTC_H
namespace MDFN_IEN_GBA
{
class RTC
{
public:
RTC();
~RTC();
void InitTime(void);
uint16 Read(uint32 address);
void Write(uint32 address, uint16 value);
void Reset(void);
void AddTime(int32 amount);
int StateAction(StateMem *sm, int load, int data_only);
private:
enum RTCSTATE { IDLE, COMMAND, DATA, READDATA };
uint8 byte0;
uint8 byte1;
uint8 byte2;
uint8 command;
int dataLen;
int bits;
RTCSTATE state;
uint8 data[12];
int64 curtime; // GBA CPU cycles since the Epoch, in local time.
};
}
#endif