Cosmos/source/Compiler/Indy.IL2CPU.X86/IL/x86/Brtrue.cs
mterwoord_cp acaa8e0a89
2009-10-17 13:45:47 +00:00

37 lines
No EOL
1.7 KiB
C#

//using System;
//using System.IO;
//using CPUx86 = Indy.IL2CPU.Assembler.X86;
//namespace Indy.IL2CPU.IL.X86 {
// [OpCode(OpCodeEnum.Brtrue)]
// public class Brtrue: Op {
// public readonly string TargetLabel;
// public Brtrue(ILReader aReader, MethodInformation aMethodInfo)
// : base(aReader, aMethodInfo) {
// TargetLabel = GetInstructionLabel(aReader.OperandValueBranchPosition);
// }
// public override void DoAssemble() {
// int xSize = Assembler.StackContents.Pop().Size;
// if (xSize > 8) {
// throw new Exception("StackSize>8 not supported");
// }
// if (xSize > 4)
// {
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
// new CPUx86.Xor { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.EAX };
// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotZero, DestinationLabel = TargetLabel };
// new CPUx86.Xor { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.EBX };
// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotZero, DestinationLabel = TargetLabel };
// } else
// {
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceValue = 0 };
// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotEqual, DestinationLabel = TargetLabel };
// }
// }
// }
//}