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refractionpcsx2
566ea8ea9b
EE/IOP Timers: improve clock sync, disable v/h sync when SINT enabled. Some changes based on tests from PS2 [SAVEVERSION+]
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
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// SPDX-License-Identifier: LGPL-3.0+
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#pragma once
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#include "common/Pcsx2Defs.h"
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struct CounterIRQBehaviour
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{
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bool repeatInterrupt;
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bool toggleInterrupt;
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};
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union psxCounterMode
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{
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struct
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{
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u32 gateEnable : 1;
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u32 gateMode : 2;
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u32 zeroReturn : 1;
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u32 targetIntr : 1;
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u32 overflIntr : 1;
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u32 repeatIntr : 1;
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u32 toggleIntr : 1;
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u32 extSignal : 1;
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u32 t2Prescale : 1;
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u32 intrEnable : 1;
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u32 targetFlag : 1;
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u32 overflowFlag : 1;
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u32 t4_5Prescale : 2;
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u32 stopped : 1;
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};
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u32 modeval;
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};
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struct psxCounter {
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u64 count, target;
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u32 rate, interrupt;
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u32 startCycle;
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s32 deltaCycles;
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psxCounterMode mode;
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CounterIRQBehaviour currentIrqMode;
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};
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#define NUM_COUNTERS 8
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extern psxCounter psxCounters[NUM_COUNTERS];
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extern void psxRcntInit();
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extern void psxRcntUpdate();
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extern void psxRcntWcount16(int index, u16 value);
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extern void psxRcntWcount32(int index, u32 value);
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extern void psxRcntWmode16(int index, u32 value);
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extern void psxRcntWmode32(int index, u32 value);
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extern void psxRcntWtarget16(int index, u32 value);
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extern void psxRcntWtarget32(int index, u32 value);
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extern void psxRcntSetNewIntrMode(int index);
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extern u16 psxRcntRcount16(int index);
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extern u32 psxRcntRcount32(int index);
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extern u64 psxRcntCycles(int index);
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extern void psxHBlankStart();
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extern void psxHBlankEnd();
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extern void psxVBlankStart();
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extern void psxVBlankEnd();
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