void WriteMov(IrInstruction instruction)
{
WriteIndent();
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write(" = ");
Context.OperandWriter.WriteOperand(instruction.Operands[1]);
Write(";");
WriteLineFormat(" // {0}", instruction.AsmDebug);
}
void WriteBinaryOp(IrInstruction instruction)
{
var name = instruction.Opcode.GetDescription();
WriteIndent();
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write(" = ");
Context.OperandWriter.WriteOperand(instruction.Operands[1]);
WriteFormat(" {0} ", name);
Context.OperandWriter.WriteOperand(instruction.Operands[2]);
Write(";");
WriteLineFormat(" // {0}", instruction.AsmDebug);
}
void WriteCallInstructionNoDest(IrInstruction instruction)
{
var name = instruction.Opcode.GetDescription();
WriteIndent();
WriteFormat("{0}(", name);
for (int i = 0; i < instruction.Operands.Count; i++)
{
Context.OperandWriter.WriteOperand(instruction.Operands[i]);
if (i < instruction.Operands.Count - 1)
{
Write(", ");
}
}
Write(");");
WriteLineFormat(" // {0}", instruction.AsmDebug);
}
static IrInstruction ParseInstruction(InstructionToken instruction)
{
var result = new IrInstruction()
{
AsmDebug = instruction.ToString(),
Operands = new List <IrOperand>(
instruction.Operands.Select(OperandParser.Parse)),
Opcode = (IrInstructionOpcode)instruction.Header.OpcodeType,
};
switch (instruction.Header.OpcodeType)
{
case OpcodeType.Ld:
Swap(result.Operands, 1, 2);
break;
}
return(result);
}
void WriteSampleCall(IrInstruction instruction)
{
var name = instruction.Opcode.GetDescription();
WriteIndent();
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write(" = ");
Context.OperandWriter.WriteOperand(instruction.Operands[2]);
WriteFormat(".{0}(", name);
for (int i = 3; i < instruction.Operands.Count; i++)
{
Context.OperandWriter.WriteOperand(instruction.Operands[i]);
Write(", ");
}
Context.OperandWriter.WriteOperand(instruction.Operands[1]);
Write(");");
WriteLineFormat(" // {0}", instruction.AsmDebug);
}
void WriteControlFlow(IrInstruction instruction)
{
switch (instruction.Opcode)
{
case IrInstructionOpcode.EndIf:
case IrInstructionOpcode.EndLoop:
case IrInstructionOpcode.EndSwitch:
DecreaseIndent();
break;
}
WriteIndent();
switch (instruction.Opcode)
{
case IrInstructionOpcode.MovC:
case IrInstructionOpcode.BreakC:
Write("if(");
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write(") ");
break;
}
switch (instruction.Opcode)
{
case IrInstructionOpcode.MovC:
Context.OperandWriter.WriteOperand(instruction.Operands[2]);
Write(" = ");
Context.OperandWriter.WriteOperand(instruction.Operands[3]);
Write(";");
break;
case IrInstructionOpcode.Loop:
Write("while(true){");
IncreaseIndent();
break;
case IrInstructionOpcode.If:
Write("if(?){");
IncreaseIndent();
break;
case IrInstructionOpcode.Switch:
Write("switch(");
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write("){");
IncreaseIndent();
break;
case IrInstructionOpcode.Case:
Write("case ");
Context.OperandWriter.WriteOperand(instruction.Operands[0]);
Write(":");
break;
case IrInstructionOpcode.Default:
Write("default:");
break;
case IrInstructionOpcode.BreakC:
case IrInstructionOpcode.Break:
Write("break;");
break;
case IrInstructionOpcode.EndIf:
case IrInstructionOpcode.EndLoop:
case IrInstructionOpcode.EndSwitch:
Write("}");
break;
case IrInstructionOpcode.Ret:
Write("return;");
break;
default:
WriteLineFormat("// Not Implemented {0}", instruction.AsmDebug);
return;
}
WriteLineFormat(" // {0}", instruction.AsmDebug);
}
public void WriteInstruction(IrInstruction instruction)
{
switch (instruction.Opcode.GetInstructionType())
{
case IrInstructionType.IntrinsicCall:
WriteCallInstruction(instruction);
break;
case IrInstructionType.IntrinsicCallNoDest:
WriteCallInstructionNoDest(instruction);
break;
case IrInstructionType.BinaryOp:
WriteBinaryOp(instruction);
break;
case IrInstructionType.SampleCall:
WriteSampleCall(instruction);
break;
case IrInstructionType.ObjectCall:
WriteObjectCall(instruction);
break;
case IrInstructionType.ObjectCallNoDest:
WriteObjectCallNoDest(instruction);
break;
case IrInstructionType.ControlFlow:
WriteControlFlow(instruction);
break;
default:
switch (instruction.Opcode)
{
case IrInstructionOpcode.Comment:
WriteIndent();
WriteLineFormat("// Comment: {0}", instruction.AsmDebug);
break;
case IrInstructionOpcode.NotImplemented:
WriteIndent();
WriteLineFormat("// Not Implemented: {0}", instruction.AsmDebug);
break;
case IrInstructionOpcode.Dfma:
case IrInstructionOpcode.IMad:
case IrInstructionOpcode.Mad:
WriteMad(instruction);
break;
case IrInstructionOpcode.Mov:
WriteMov(instruction);
break;
default:
WriteIndent();
WriteLineFormat("// Not Implemented [{0}]: {1}", instruction.Opcode, instruction.AsmDebug);
break;
}
break;
}
}
