public static unsafe DecodedInstruction Format(CodeInfo nci, DecomposedInstruction ndi)
{
var input = new DecomposedInstructionStruct();
CodeInfoStruct * ci = null;
var gch = new GCHandle();
DecodedInstruction di;
try
{
ci = AcquireCodeInfoStruct(nci, out gch);
if (ci == null)
{
throw new OutOfMemoryException();
}
input.Address = ndi.Address;
input.Flags = ndi.Flags;
input.Size = (byte)ndi.Size;
input.segment = (byte)ndi._segment;
input.ibase = (byte)ndi.Base;
input.scale = (byte)ndi.Scale;
input.Opcode = ndi.Opcode;
/* unusedPrefixesMask is unused indeed, lol. */
input.meta = (byte)ndi.Meta;
/* Nor usedRegistersMask. */
int opsCount = ndi.Operands.Length;
for (var i = 0; i < opsCount; i++)
{
var op = ndi.Operands[i];
if (op == null)
{
continue;
}
input.Operands[i].index = (byte)op.Index;
input.Operands[i].Type = op.Type;
input.Operands[i].Size = (ushort)op.Size;
}
if (ndi.ImmediateValue != null)
{
input.ImmediateValue = ndi.ImmediateValue.ImmediateValue;
}
if (ndi.Displacement != null)
{
input.Displacement = ndi.Displacement.Displacement;
input.dispSize = (byte)ndi.Displacement.Size;
}
DecodedInstructionStruct output;
distorm_format64(ci, &input, &output);
di = DecodedInstruction.FromUnsafe(&output);
}
finally
{
if (gch.IsAllocated)
{
gch.Free();
}
if (ci != null)
{
Free(ci);
}
}
return(di);
}
public static unsafe DecomposedInstruction FromUnsafe(DecomposedInstructionStruct* srcInst)
{
var di = new DecomposedInstruction {
Address = srcInst->Address,
Flags = srcInst->Flags,
Size = srcInst->Size,
_segment = srcInst->segment,
Base = srcInst->ibase,
Scale = srcInst->scale,
Opcode = srcInst->Opcode,
UnusedPrefixesMask = srcInst->UnusedPrefixesMask,
Meta = srcInst->meta,
RegistersMask = srcInst->UsedRegistersMask,
ModifiedFlagsMask = srcInst->modifiedFlagsMask,
TestedFlagsMask = srcInst->testedFlagsMask,
UndefinedFlagsMask = srcInst->undefinedFlagsMask
};
/* Simple fields: */
/* Immediate variant. */
var immVariant = new ImmVariant {
ImmediateValue = srcInst->ImmediateValue,
Size = 0
};
/* The size of the immediate is in one of the operands, if at all. Look for it below. Zero by default. */
/* Count operands. */
var operandsNo = 0;
for (operandsNo = 0; operandsNo < DecomposedInstructionStruct.OPERANDS_NO; operandsNo++)
{
if (srcInst->Operands[operandsNo].Type == OperandType.None)
break;
}
var ops = new Operand[operandsNo];
for (var j = 0; j < operandsNo; j++)
{
var srcOp = srcInst->Operands[j];
if (srcOp.Type == OperandType.Immediate)
{
/* Set the size of the immediate operand. */
immVariant.Size = srcInst->Operands[j].Size;
}
var op = new Operand
{
Type = srcOp.Type,
Index = srcOp.index,
Size = srcOp.Size
};
ops[j] = op;
}
di.Operands = ops;
/* Attach the immediate variant. */
di.ImmediateValue = immVariant;
/* Displacement variant. */
var disp = new DispVariant
{
Displacement = srcInst->Displacement,
Size = srcInst->dispSize
};
di.Displacement = disp;
return di;
}
public static unsafe DecodedInstruction Format(CodeInfo nci, DecomposedInstruction ndi)
{
var input = new DecomposedInstructionStruct();
CodeInfoStruct *ci = null;
var gch = new GCHandle();
DecodedInstruction di;
try
{
ci = AcquireCodeInfoStruct(nci, out gch);
if (ci == null)
throw new OutOfMemoryException();
input.Address = ndi.Address;
input.Flags = ndi.Flags;
input.Size = (byte) ndi.Size;
input.segment = (byte) ndi._segment;
input.ibase = (byte) ndi.Base;
input.scale = (byte) ndi.Scale;
input.Opcode = ndi.Opcode;
/* unusedPrefixesMask is unused indeed, lol. */
input.meta = (byte) ndi.Meta;
/* Nor usedRegistersMask. */
int opsCount = ndi.Operands.Length;
for (var i = 0; i < opsCount; i++) {
var op = ndi.Operands[i];
if (op == null) continue;
input.Operands[i].index = (byte) op.Index;
input.Operands[i].Type = op.Type;
input.Operands[i].Size = (ushort) op.Size;
}
if (ndi.ImmediateValue != null)
input.ImmediateValue = ndi.ImmediateValue.ImmediateValue;
if (ndi.Displacement != null)
{
input.Displacement = ndi.Displacement.Displacement;
input.dispSize = (byte) ndi.Displacement.Size;
}
DecodedInstructionStruct output;
distorm_format64(ci, &input, &output);
di = DecodedInstruction.FromUnsafe(&output);
}
finally
{
if (gch.IsAllocated)
gch.Free();
if (ci != null)
Free(ci);
}
return di;
}
