mirror of
https://github.com/italicsjenga/agb.git
synced 2024-12-27 02:01:32 +11:00
46 lines
1 KiB
C
46 lines
1 KiB
C
|
/* Copyright (c) 2013-2016 Jeffrey Pfau
|
||
|
|
*
|
||
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||
|
|
#ifndef GB_TIMER_H
|
||
|
|
#define GB_TIMER_H
|
||
|
|
|
||
|
|
#include <mgba-util/common.h>
|
||
|
|
|
||
|
|
CXX_GUARD_START
|
||
|
|
|
||
|
|
#include <mgba/core/timing.h>
|
||
|
|
|
||
|
|
DECL_BITFIELD(GBRegisterTAC, uint8_t);
|
||
|
|
DECL_BITS(GBRegisterTAC, Clock, 0, 2);
|
||
|
|
DECL_BIT(GBRegisterTAC, Run, 2);
|
||
|
|
|
||
|
|
enum {
|
||
|
|
GB_DMG_DIV_PERIOD = 16
|
||
|
|
};
|
||
|
|
|
||
|
|
struct GB;
|
||
|
|
struct GBTimer {
|
||
|
|
struct GB* p;
|
||
|
|
|
||
|
|
struct mTimingEvent event;
|
||
|
|
struct mTimingEvent irq;
|
||
|
|
|
||
|
|
uint32_t internalDiv;
|
||
|
|
int32_t nextDiv;
|
||
|
|
uint32_t timaPeriod;
|
||
|
|
};
|
||
|
|
|
||
|
|
void GBTimerReset(struct GBTimer*);
|
||
|
|
void GBTimerDivReset(struct GBTimer*);
|
||
|
|
uint8_t GBTimerUpdateTAC(struct GBTimer*, GBRegisterTAC tac);
|
||
|
|
|
||
|
|
struct GBSerializedState;
|
||
|
|
void GBTimerSerialize(const struct GBTimer* timer, struct GBSerializedState* state);
|
||
|
|
void GBTimerDeserialize(struct GBTimer* timer, const struct GBSerializedState* state);
|
||
|
|
|
||
|
|
CXX_GUARD_END
|
||
|
|
|
||
|
|
#endif
|