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CPU: Make interrupts actually edge-triggered

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Stenzek
2024-03-16 23:28:53 +10:00
parent 3702a533f2
commit fa6850902a
13 changed files with 145 additions and 98 deletions
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17
src/core/interrupt_controller.h
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@ -1,4 +1,4 @@
// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com>
// SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
#pragma once
@ -19,24 +19,19 @@ enum class IRQ : u32
TMR0 = 4, // IRQ4 - TMR0 - Sysclk or Dotclk
TMR1 = 5, // IRQ5 - TMR1 - Sysclk Hblank
TMR2 = 6, // IRQ6 - TMR2 - Sysclk or Sysclk / 8
IRQ7 = 7, // IRQ7 - Controller and Memory Card Byte Received
PAD = 7, // IRQ7 - Controller and Memory Card Byte Received
SIO = 8, // IRQ8 - SIO
SPU = 9, // IRQ9 - SPU
IRQ10 = 10 // IRQ10 - Lightpen interrupt, PIO
IRQ10 = 10, // IRQ10 - Lightpen interrupt, PIO
MaxCount
};
void Initialize();
void Shutdown();
void Reset();
bool DoState(StateWrapper& sw);
// Should mirror CPU state.
bool GetIRQLineState();
void SetLineState(IRQ irq, bool state);
// Interupts are edge-triggered, so if it is masked when TriggerInterrupt() is called, it will be lost.
void InterruptRequest(IRQ irq);
// I/O
u32 ReadRegister(u32 offset);
void WriteRegister(u32 offset, u32 value);