void DisassemblyDialog::stepOver()
{
if (!r5900Debug.isAlive() || !r5900Debug.isCpuPaused() || currentCpu == NULL)
return;
// todo: breakpoints for iop
if (currentCpu != eeTab)
return;
CtrlDisassemblyView* disassembly = currentCpu->getDisassembly();
// If the current PC is on a breakpoint, the user doesn't want to do nothing.
CBreakPoints::SetSkipFirst(r5900Debug.getPC());
u32 currentPc = r5900Debug.getPC();
MIPSAnalyst::MipsOpcodeInfo info = MIPSAnalyst::GetOpcodeInfo(&r5900Debug,r5900Debug.getPC());
u32 breakpointAddress = currentPc+disassembly->getInstructionSizeAt(currentPc);
if (info.isBranch)
{
if (info.isConditional == false)
{
if (info.isLinkedBranch) // jal, jalr
{
// it's a function call with a delay slot - skip that too
breakpointAddress += 4;
} else { // j, ...
// in case of absolute branches, set the breakpoint at the branch target
breakpointAddress = info.branchTarget;
}
} else { // beq, ...
if (info.conditionMet)
{
breakpointAddress = info.branchTarget;
} else {
breakpointAddress = currentPc+2*4;
disassembly->scrollStepping(breakpointAddress);
}
}
} else {
disassembly->scrollStepping(breakpointAddress);
}
CBreakPoints::AddBreakPoint(breakpointAddress,true);
r5900Debug.resumeCpu();
}
void DisassemblyDialog::stepInto()
{
if (!r5900Debug.isAlive() || !r5900Debug.isCpuPaused() || currentCpu == NULL)
return;
// todo: breakpoints for iop
if (currentCpu != eeTab)
return;
CtrlDisassemblyView* disassembly = currentCpu->getDisassembly();
// If the current PC is on a breakpoint, the user doesn't want to do nothing.
CBreakPoints::SetSkipFirst(r5900Debug.getPC());
u32 currentPc = r5900Debug.getPC();
MIPSAnalyst::MipsOpcodeInfo info = MIPSAnalyst::GetOpcodeInfo(&r5900Debug,r5900Debug.getPC());
u32 breakpointAddress = currentPc+disassembly->getInstructionSizeAt(currentPc);
if (info.isBranch)
{
if (info.isConditional == false)
{
breakpointAddress = info.branchTarget;
} else {
if (info.conditionMet)
{
breakpointAddress = info.branchTarget;
} else {
breakpointAddress = currentPc+2*4;
disassembly->scrollStepping(breakpointAddress);
}
}
}
if (info.isSyscall)
breakpointAddress = info.branchTarget;
CBreakPoints::AddBreakPoint(breakpointAddress,true);
r5900Debug.resumeCpu();
}