internal void ClearCalleeSaves()
{
EBX.ClearCalleeReg();
ESI.ClearCalleeReg();
EDI.ClearCalleeReg();
EBP.ClearCalleeReg();
}
void SetCalleeSaves(CalleeSaveRegistersX86 *calleeSaveRegisters)
{
EBX.SetCalleeReg(&calleeSaveRegisters->EBX);
EDI.SetCalleeReg(&calleeSaveRegisters->EDI);
ESI.SetCalleeReg(&calleeSaveRegisters->ESI);
EBP.SetCalleeReg(&calleeSaveRegisters->EBP);
}
internal void SetCalleeSaves(SpillContext *context)
{
EBX.SetCalleeReg(&context->ebx);
EDI.SetCalleeReg(&context->edi);
ESI.SetCalleeReg(&context->esi);
EBP.SetCalleeReg(&context->ebp);
}
internal void ClearFrame(UIntPtr calleeSaveMask,
bool framePointerOmitted)
{
if (!framePointerOmitted)
{
VTable.Assert((calleeSaveMask & 0x10) == 0,
"EBP should not be callee saved");
EBP.ClearFrameReg();
}
if ((calleeSaveMask & 0x1) != 0)
{
EBX.ClearFrameReg();
}
if ((calleeSaveMask & 0x8) != 0)
{
EBP.ClearFrameReg();
}
if ((calleeSaveMask & 0x4) != 0)
{
ESI.ClearFrameReg();
}
if ((calleeSaveMask & 0x2) != 0)
{
EDI.ClearFrameReg();
}
}
internal void ScanLiveRegs(UIntPtr mask,
NonNullReferenceVisitor referenceVisitor)
{
EDI.ScanLiveReg((mask >> 2) & 0x3, referenceVisitor);
ESI.ScanLiveReg((mask >> 4) & 0x3, referenceVisitor);
EBX.ScanLiveReg((mask >> 0) & 0x3, referenceVisitor);
EBP.ScanLiveReg((mask >> 6) & 0x3, referenceVisitor);
}
internal void PopFrame(UIntPtr *framePointer,
UIntPtr calleeSaveMask,
bool framePointerOmitted,
bool hasTransitionRecord)
{
UIntPtr *calleeSaveStart;
if (framePointerOmitted)
{
calleeSaveStart = framePointer - 1;
}
else
{
VTable.Assert((calleeSaveMask & 0x100) == 0,
"EBP should not be callee saved");
calleeSaveStart = framePointer;
EBP.PopFrameReg(ref calleeSaveStart);
}
if (hasTransitionRecord)
{
calleeSaveStart -=
sizeof(CallStack.TransitionRecord) / sizeof(UIntPtr);
}
// Note: the order in which these appear is important!
if ((calleeSaveMask & 0x1) != 0)
{
EBX.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x80) != 0)
{
EBP.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x4) != 0)
{
ESI.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x2) != 0)
{
EDI.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x8) != 0)
{
R12.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x10) != 0)
{
R13.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x20) != 0)
{
R14.PopFrameReg(ref calleeSaveStart);
}
if ((calleeSaveMask & 0x40) != 0)
{
R15.PopFrameReg(ref calleeSaveStart);
}
}
internal void ClearCalleeSaves()
{
EBX.ClearCalleeReg();
ESI.ClearCalleeReg();
EDI.ClearCalleeReg();
EBP.ClearCalleeReg();
R12.ClearCalleeReg();
R13.ClearCalleeReg();
R14.ClearCalleeReg();
R15.ClearCalleeReg();
}
void SetCalleeSaves(CalleeSaveRegistersX64 *calleeSaveRegisters)
{
EBX.SetCalleeReg(&calleeSaveRegisters->EBX);
EDI.SetCalleeReg(&calleeSaveRegisters->EDI);
ESI.SetCalleeReg(&calleeSaveRegisters->ESI);
EBP.SetCalleeReg(&calleeSaveRegisters->EBP);
R12.SetCalleeReg(&calleeSaveRegisters->R12);
R13.SetCalleeReg(&calleeSaveRegisters->R13);
R14.SetCalleeReg(&calleeSaveRegisters->R14);
R15.SetCalleeReg(&calleeSaveRegisters->R15);
}
internal void SetCalleeSaves(SpillContext *context)
{
EBX.SetCalleeReg(&context->bx);
EDI.SetCalleeReg(&context->di);
ESI.SetCalleeReg(&context->si);
EBP.SetCalleeReg(&context->bp);
R12.SetCalleeReg(&context->r12);
R13.SetCalleeReg(&context->r13);
R14.SetCalleeReg(&context->r14);
R15.SetCalleeReg(&context->r15);
}
