snes9x/srtc.cpp

74 lines
1.5 KiB
C++

/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
/*****
* S-RTC emulation code
* Copyright (c) byuu
*****/
#include <limits>
#include "snes9x.h"
#include "memmap.h"
#include "srtc.h"
#include "display.h"
#define memory_cartrtc_read(a) RTCData.reg[(a)]
#define memory_cartrtc_write(a, b) { RTCData.reg[(a)] = (b); }
#define cpu_regs_mdr OpenBus
static inline unsigned max (unsigned a, unsigned b)
{
return ((a > b) ? a : b);
}
static inline unsigned min (unsigned a, unsigned b)
{
return ((a < b) ? a : b);
}
#include "srtcemu.h"
#include "srtcemu.cpp"
static SRTC srtcemu;
void S9xInitSRTC (void)
{
srtcemu.power();
memset(RTCData.reg, 0, 20);
}
void S9xResetSRTC (void)
{
srtcemu.reset();
}
void S9xSetSRTC (uint8 data, uint16 address)
{
srtcemu.mmio_write(address, data);
}
uint8 S9xGetSRTC (uint16 address)
{
return (srtcemu.mmio_read(address));
}
void S9xSRTCPreSaveState (void)
{
srtcsnap.rtc_mode = (int32) srtcemu.rtc_mode;
srtcsnap.rtc_index = (int32) srtcemu.rtc_index;
}
void S9xSRTCPostLoadState (int)
{
srtcemu.rtc_mode = (SRTC::RTC_Mode) srtcsnap.rtc_mode;
srtcemu.rtc_index = (signed) srtcsnap.rtc_index;
srtcemu.update_time();
}