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37 lines
965 B
C
37 lines
965 B
C
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/* Copyright (c) 2013-2016 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GBA_TIMER_H
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#define GBA_TIMER_H
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#include <mgba-util/common.h>
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CXX_GUARD_START
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#include <mgba/core/timing.h>
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DECL_BITFIELD(GBATimerFlags, uint32_t);
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DECL_BITS(GBATimerFlags, PrescaleBits, 0, 4);
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DECL_BIT(GBATimerFlags, CountUp, 4);
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DECL_BIT(GBATimerFlags, DoIrq, 5);
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DECL_BIT(GBATimerFlags, Enable, 6);
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struct GBA;
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struct GBATimer {
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uint16_t reload;
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int32_t lastEvent;
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struct mTimingEvent event;
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GBATimerFlags flags;
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};
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void GBATimerInit(struct GBA* gba);
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void GBATimerUpdateRegister(struct GBA* gba, int timer, int32_t cyclesLate);
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void GBATimerWriteTMCNT_LO(struct GBA* gba, int timer, uint16_t value);
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void GBATimerWriteTMCNT_HI(struct GBA* gba, int timer, uint16_t value);
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CXX_GUARD_END
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#endif
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