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Added hack to return instructions to correctly adjust PC

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transistor
2022-09-18 16:28:14 -07:00
parent fa3e484288
commit 1a65f50ba0
1 changed files with 12 additions and 3 deletions
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src/cpus/m68k/execute.rs
+12 -3
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@@ -801,18 +801,27 @@ impl M68k {
}
self.set_sr(sr);
self.set_pc(addr)?;
if let Err(err) = self.set_pc(addr) {
self.state.pc -= 2;
return Err(err);
}
},
Instruction::RTR => {
let ccr = self.pop_word()?;
let addr = self.pop_long()?;
self.set_sr((self.state.sr & 0xFF00) | (ccr & 0x00FF));
self.set_pc(addr)?;
if let Err(err) = self.set_pc(addr) {
self.state.pc -= 2;
return Err(err);
}
},
Instruction::RTS => {
self.debugger.stack_tracer.pop_return();
let addr = self.pop_long()?;
self.set_pc(addr)?;
if let Err(err) = self.set_pc(addr) {
self.state.pc -= 2;
return Err(err);
}
},
//Instruction::RTD(i16) => {
//},