mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
100 lines
3.9 KiB
C#
100 lines
3.9 KiB
C#
using System;
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using CPUx86 = Cosmos.IL2CPU.X86;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode( ILOpCode.Code.Conv_R4 )]
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public class Conv_R4 : ILOp
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{
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public Conv_R4( Cosmos.IL2CPU.Assembler aAsmblr )
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: base( aAsmblr )
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{
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}
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public override void Execute( MethodInfo aMethod, ILOpCode aOpCode )
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{
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var xSource = Assembler.Stack.Peek();
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if (!xSource.IsFloat)
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{
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new CPUx86.Move { SourceReg = CPUx86.Registers.ESP, DestinationReg = CPUx86.Registers.EAX, SourceIsIndirect = true };
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new CPUx86.SSE.ConvertSI2SS { SourceReg = CPUx86.Registers.EAX, DestinationReg = CPUx86.Registers.XMM0};
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new CPUx86.SSE.MoveSS { SourceReg = CPUx86.Registers.XMM0, DestinationReg = CPUx86.Registers.ESP, DestinationIsIndirect = true };
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}
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Assembler.Stack.Pop();
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switch (xSource.Size)
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{
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case 1:
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case 2:
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{
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new CPUx86.Noop();
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break;
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}
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case 8:
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{
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new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
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new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
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break;
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}
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case 4:
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{
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break;
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}
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default:
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//EmitNotImplementedException( Assembler, GetServiceProvider(), "Conv_U4: SourceSize " + xStackItem.Size + " not supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel );
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throw new NotImplementedException();
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}
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Assembler.Stack.Push(4, typeof(uint));
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Assembler.Stack.Push(4, true, true, true);
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}
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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 = Cosmos.IL2CPU.X86;
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//
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// namespace Cosmos.IL2CPU.IL.X86 {
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// [OpCode(OpCodeEnum.Conv_R4)]
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// public class Conv_R4: Op {
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// private string mNextLabel;
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// private string mCurLabel;
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// private uint mCurOffset;
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// private MethodInformation mMethodInformation;
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// public Conv_R4(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// mMethodInformation = aMethodInfo;
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// mCurOffset = aReader.Position;
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// mCurLabel = IL.Op.GetInstructionLabel(aReader);
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// mNextLabel = IL.Op.GetInstructionLabel(aReader.NextPosition);
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// }
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// public override void DoAssemble() {
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// EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_R4: Floats not yet supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
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// return;
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// //int xSource = Assembler.Stack.Pop();
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// //switch (xSource) {
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// // case 1:
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// // case 2: {
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// // break;
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// // }
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// // case 8: {
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// // new CPUx86.Pop(CPUx86.Registers_Old.EAX);
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// // new CPUx86.Pop(CPUx86.Registers_Old.ECX);
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// // new CPUx86.Pushd(CPUx86.Registers_Old.EAX);
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// // Assembler.Stack.Push(4);
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// // break;
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// // }
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// // case 4: {
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// // break;
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// // }
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// // default:
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// // throw new Exception("SourceSize " + xSource + " not supported!");
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// //}
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// }
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// }
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// }
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}
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}
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