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fix masking

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This commit is contained in:
Logan McNaughton
2023-10-10 20:38:11 -06:00
parent c75c1e780c
commit 819f5a7d8b
1 changed files with 7 additions and 2 deletions
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src/device/cop0.rs
+7 -2
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@@ -185,9 +185,9 @@ pub fn get_control_registers(device: &mut device::Device, index: u32) -> u64 {
pub fn set_control_registers(device: &mut device::Device, index: u32, mut data: u64) {
device.cpu.cop0.reg_latch = data;
data &= device.cpu.cop0.reg_write_masks[index as usize];
match index {
COP0_COUNT_REG => {
data &= 0xFFFFFFFF;
data <<= 1;
device::events::translate_events(
device,
@@ -197,6 +197,7 @@ pub fn set_control_registers(device: &mut device::Device, index: u32, mut data:
}
COP0_WIRED_REG => device.cpu.cop0.regs[COP0_RANDOM_REG as usize] = 31,
COP0_COMPARE_REG => {
data &= 0xFFFFFFFF;
let current_count = (device.cpu.cop0.regs[COP0_COUNT_REG as usize] >> 1) & 0xFFFFFFFF;
let mut compare_event_time =
(device.cpu.cop0.regs[COP0_COUNT_REG as usize] & 0xFFFFFFFF00000000) + (data << 1);
@@ -216,7 +217,11 @@ pub fn set_control_registers(device: &mut device::Device, index: u32, mut data:
}
_ => {}
}
device::memory::masked_write_64(&mut device.cpu.cop0.regs[index as usize], data, !0 as u64);
device::memory::masked_write_64(
&mut device.cpu.cop0.regs[index as usize],
data,
device.cpu.cop0.reg_write_masks[index as usize],
);
device::exceptions::check_pending_interrupts(device);
}