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modify rsp sync points

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This commit is contained in:
Logan McNaughton 2025-09-16 11:39:23 +02:00
parent d6e6a16814
commit 0605967c28
1 changed files with 11 additions and 10 deletions
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21
src/device/rsp_interface.rs
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@ -219,6 +219,8 @@ fn fifo_push(device: &mut device::Device, dir: DmaDir) {
panic!("RSP DMA already full")
}
device.rsp.cpu.sync_point = true;
if device.rsp.regs[SP_DMA_BUSY_REG as usize] != 0 {
device.rsp.fifo[1].dir = dir;
if dir == DmaDir::Read {
@ -276,21 +278,20 @@ pub fn read_regs(
}
let reg = (address & 0xFFFF) >> 2;
match reg as u32 {
SP_DMA_BUSY_REG | SP_DMA_FULL_REG => {
if device.rsp.regs[reg as usize] != 0 {
device.rsp.cpu.sync_point = true;
}
device.rsp.regs[reg as usize]
}
SP_STATUS_REG => {
let value = device.rsp.regs[reg as usize]
& !(SP_STATUS_HALT | SP_STATUS_BROKE | SP_STATUS_INTR_BREAK);
& (SP_STATUS_SIG0
| SP_STATUS_SIG1
| SP_STATUS_SIG2
| SP_STATUS_SIG3
| SP_STATUS_SIG4
| SP_STATUS_SIG5
| SP_STATUS_SIG6
| SP_STATUS_SIG7);
if value == device.rsp.last_status_value && value != 0 {
device.rsp.cpu.sync_point = true;
}
if value & (SP_STATUS_DMA_BUSY | SP_STATUS_DMA_FULL) != 0 {
device.rsp.cpu.sync_point = true;
}
device.rsp.last_status_value = value;
device.rsp.regs[reg as usize]
}