0xrsydn/gameboy-rust
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feat(cpu): account for source fetches in branch and IRQ refills

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0xrsydn 2026-10-06 16:27:45 +07:00
commit 2d7eb6e4eb
27 changed files with 638 additions and 87 deletions
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5
crates/gba-core/src/machine.rs
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@ -177,9 +177,8 @@ impl Machine {
self.last_timing = timing;
return Ok(StepKind::HaltIdle);
}
let (kind, timing) = if self.cpu.take_interrupt(self.memory.irq_pending(), false) {
self.cpu.refill_pipeline(&mut self.memory);
(StepKind::IrqEntry, self.cpu.exception_timing(&self.memory))
let (kind, timing) = if let Some(timing) = self.cpu.take_irq_timed(&mut self.memory) {
(StepKind::IrqEntry, timing)
} else {
(
StepKind::Instruction,