mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
89 lines
4.4 KiB
C#
89 lines
4.4 KiB
C#
using System;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode(ILOpCode.Code.Clt_Un)]
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public class Clt_Un: ILOpX86
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{
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public Clt_Un(ILOpCode aOpCode):base(aOpCode)
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{
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}
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#region Old code
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// using System;
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// using System.IO;
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//
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//
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// using CPUx86 = Indy.IL2CPU.Assembler.X86;
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// using CPU = Indy.IL2CPU.Assembler;
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// using Indy.IL2CPU.Assembler;
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// using Indy.IL2CPU.Assembler.X86;
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//
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// namespace Indy.IL2CPU.IL.X86 {
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// [OpCode(OpCodeEnum.Clt_Un)]
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// public class Clt_Un: Op {
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// private readonly string NextInstructionLabel;
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// private readonly string CurInstructionLabel;
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// private uint mCurrentOffset;
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// private MethodInformation mMethodInfo;
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// public Clt_Un(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// NextInstructionLabel = GetInstructionLabel(aReader.NextPosition);
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// CurInstructionLabel = GetInstructionLabel(aReader);
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// mMethodInfo = aMethodInfo;
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// mCurrentOffset = aReader.Position;
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// }
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// public override void DoAssemble() {
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// var xStackItem= Assembler.StackContents.Pop();
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// if (xStackItem.IsFloat) {
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// EmitNotImplementedException(Assembler, GetServiceProvider(), "Clt_Un: Floats not yet supported", CurInstructionLabel, mMethodInfo, mCurrentOffset, NextInstructionLabel);
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// return;
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// }
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// if (xStackItem.Size > 8) {
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// EmitNotImplementedException(Assembler, GetServiceProvider(), "Clt_Un: StackSizes>8 not supported", CurInstructionLabel, mMethodInfo, mCurrentOffset, NextInstructionLabel);
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// return;
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// }
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// Assembler.StackContents.Push(new StackContent(4, typeof(bool)));
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// string BaseLabel = CurInstructionLabel + "__";
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// string LabelTrue = BaseLabel + "True";
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// string LabelFalse = BaseLabel + "False";
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// if (xStackItem.Size > 4)
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// {
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// new CPUx86.Xor { DestinationReg = CPUx86.Registers.ESI, SourceReg = CPUx86.Registers.ESI };
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// new CPUx86.Add { DestinationReg = Registers.ESI, SourceValue = 1 };
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// new CPUx86.Xor { DestinationReg = CPUx86.Registers.EDI, SourceReg = CPUx86.Registers.EDI };
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// //esi = 1
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// new CPUx86.Pop{DestinationReg = CPUx86.Registers.EAX};
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EDX };
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// //value2: EDX:EAX
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
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// //value1: ECX:EBX
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// new CPUx86.Sub { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.EAX };
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// new CPUx86.SubWithCarry { DestinationReg = CPUx86.Registers.ECX, SourceReg = CPUx86.Registers.EDX };
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// //result = value1 - value2
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// new CPUx86.ConditionalMove{ Condition=ConditionalTestEnum.Below, DestinationReg = CPUx86.Registers.EDI, SourceReg = CPUx86.Registers.ESI };
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// new CPUx86.Push { DestinationReg = Registers.EDI };
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// } else
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// {
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.ECX };
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// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true };
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// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.LessThan, DestinationLabel = LabelTrue };
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// new CPUx86.Jump { DestinationLabel = LabelFalse };
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// new CPU.Label(LabelTrue);
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// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
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// new CPUx86.Push { DestinationValue = 1 };
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// new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
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// new CPU.Label(LabelFalse);
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// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
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// new CPUx86.Push { DestinationValue = 0 };
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// new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
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// }
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// }
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// }
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// }
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#endregion Old code
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}
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}
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