mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-30 21:00:30 +00:00
64 lines
No EOL
3.5 KiB
C#
64 lines
No EOL
3.5 KiB
C#
//using System;
|
|
//using System.IO;
|
|
|
|
|
|
//using CPU = Indy.IL2CPU.Assembler;
|
|
//using CPUx86 = Indy.IL2CPU.Assembler.X86;
|
|
|
|
//namespace Indy.IL2CPU.IL.X86 {
|
|
// [OpCode(OpCodeEnum.Bge_Un)]
|
|
// public class Bge_Un: Op {
|
|
// public readonly string TargetLabel;
|
|
// public readonly string CurInstructionLabel;
|
|
// private string mNextLabel;
|
|
// private string mCurLabel;
|
|
// private uint mCurOffset;
|
|
// private MethodInformation mMethodInformation;
|
|
// public Bge_Un(ILReader aReader, MethodInformation aMethodInfo)
|
|
// : base(aReader, aMethodInfo) {
|
|
// TargetLabel = GetInstructionLabel(aReader.OperandValueBranchPosition);
|
|
// CurInstructionLabel = GetInstructionLabel(aReader);
|
|
// mMethodInformation = aMethodInfo;
|
|
// mCurOffset = aReader.Position;
|
|
// mCurLabel = IL.Op.GetInstructionLabel(aReader);
|
|
// mNextLabel = IL.Op.GetInstructionLabel(aReader.NextPosition);
|
|
// }
|
|
// public override void DoAssemble() {
|
|
// if (Assembler.StackContents.Peek().IsFloat) {
|
|
// EmitNotSupportedException(Assembler, GetServiceProvider(), "Floats are not yet supported (Bge)", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// int xSize = Math.Max(Assembler.StackContents.Pop().Size, Assembler.StackContents.Pop().Size);
|
|
// if (xSize > 8) {
|
|
// EmitNotSupportedException(Assembler, GetServiceProvider(), "StackSize>8 not supported (Bge)", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// string BaseLabel = CurInstructionLabel + "__";
|
|
// string LabelTrue = BaseLabel + "True";
|
|
// string LabelFalse = BaseLabel + "False";
|
|
// if (xSize > 4)
|
|
// {
|
|
// new CPUx86.Pop{DestinationReg = CPUx86.Registers.EAX};
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EDX };
|
|
// //value2: EDX:EAX
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
|
|
// //value1: ECX:EBX
|
|
// new CPUx86.Sub { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.EAX };
|
|
// new CPUx86.SubWithCarry { DestinationReg = CPUx86.Registers.ECX, SourceReg = CPUx86.Registers.EDX };
|
|
// //result = value1 - value2
|
|
// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.GreaterThanOrEqualTo, DestinationLabel = TargetLabel };
|
|
// } else {
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
|
|
// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceReg=CPUx86.Registers.ESP, SourceIsIndirect=true};
|
|
// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.GreaterThanOrEqualTo, DestinationLabel = LabelFalse };
|
|
// new CPUx86.Jump { DestinationLabel = LabelTrue };
|
|
// new CPU.Label(LabelTrue);
|
|
// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
|
|
// new CPUx86.Jump { DestinationLabel = TargetLabel };
|
|
// new CPU.Label(LabelFalse);
|
|
// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
|
|
// }
|
|
// }
|
|
// }
|
|
//} |