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CPU: Fixed transfer instructions (based on CPUTRN test rom)

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This commit is contained in:
Sour 2019-02-13 23:41:00 -05:00
parent f0bd820264
commit 930f504861
1 changed files with 11 additions and 3 deletions
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14
Core/Cpu.Instructions.cpp
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@ -835,7 +835,7 @@ void Cpu::TAY()
void Cpu::TCD() void Cpu::TCD()
{ {
SetRegister(_state.DBR, (uint8_t)_state.A); SetRegister(_state.D, _state.A, false);
} }
void Cpu::TCS() void Cpu::TCS()
@ -845,7 +845,7 @@ void Cpu::TCS()
void Cpu::TDC() void Cpu::TDC()
{ {
SetRegister(_state.A, _state.DBR, CheckFlag(ProcFlags::MemoryMode8)); SetRegister(_state.A, _state.D, CheckFlag(ProcFlags::MemoryMode8));
} }
void Cpu::TSC() void Cpu::TSC()
@ -891,13 +891,21 @@ void Cpu::XBA()
void Cpu::XCE() void Cpu::XCE()
{ {
bool carry = (_state.PS & ProcFlags::Carry) != 0; bool carry = CheckFlag(ProcFlags::Carry);
if(_state.EmulationMode) { if(_state.EmulationMode) {
SetFlags(ProcFlags::Carry); SetFlags(ProcFlags::Carry);
} else { } else {
ClearFlags(ProcFlags::Carry); ClearFlags(ProcFlags::Carry);
} }
_state.EmulationMode = carry; _state.EmulationMode = carry;
if(_state.EmulationMode) {
SetFlags(ProcFlags::IndexMode8 | ProcFlags::MemoryMode8);
//_state.A &= 0xFF;
_state.Y &= 0xFF;
_state.X &= 0xFF;
_state.SP = 0x100 | (_state.SP & 0xFF);
}
} }
/***************** /*****************