mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
103 lines
4.4 KiB
C#
103 lines
4.4 KiB
C#
using System;
|
|
using CPUx86 = Cosmos.IL2CPU.X86;
|
|
namespace Cosmos.IL2CPU.X86.IL
|
|
{
|
|
[Cosmos.IL2CPU.OpCode( ILOpCode.Code.Conv_U1 )]
|
|
public class Conv_U1 : ILOp
|
|
{
|
|
public Conv_U1( Cosmos.IL2CPU.Assembler aAsmblr )
|
|
: base( aAsmblr )
|
|
{
|
|
}
|
|
|
|
public override void Execute( MethodInfo aMethod, ILOpCode aOpCode )
|
|
{
|
|
var xSource = Assembler.Stack.Peek();
|
|
if (xSource.IsFloat)
|
|
{
|
|
new CPUx86.SSE.MoveSS { SourceReg = CPUx86.Registers.ESP, DestinationReg = CPUx86.Registers.XMM0, SourceIsIndirect = true };
|
|
new CPUx86.SSE.ConvertSS2SI { SourceReg = CPUx86.Registers.XMM0, DestinationReg = CPUx86.Registers.EAX };
|
|
new CPUx86.Move { DestinationReg = CPUx86.Registers.ESP, SourceReg = CPUx86.Registers.EAX, DestinationIsIndirect = true };
|
|
}
|
|
Assembler.Stack.Pop();
|
|
switch( xSource.Size )
|
|
{
|
|
case 2:
|
|
case 4:
|
|
{
|
|
new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
|
|
new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
|
|
new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
|
|
new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
|
|
break;
|
|
}
|
|
case 1:
|
|
{
|
|
break;
|
|
}
|
|
default:
|
|
//EmitNotImplementedException( Assembler, GetServiceProvider(), "Conv_I1: SourceSize " + xSource + " not supported", mCurLabel, mMethodInformation, mCurOffset, mNextLabel );
|
|
throw new NotImplementedException();
|
|
}
|
|
Assembler.Stack.Push(1, typeof(byte));
|
|
}
|
|
|
|
|
|
// using System;
|
|
//
|
|
// using CPUx86 = Cosmos.IL2CPU.X86;
|
|
// using Cosmos.IL2CPU.X86;
|
|
//
|
|
// namespace Cosmos.IL2CPU.IL.X86 {
|
|
// [OpCode(OpCodeEnum.Conv_U1)]
|
|
// public class Conv_U1: Op {
|
|
// private string mNextLabel;
|
|
// private string mCurLabel;
|
|
// private uint mCurOffset;
|
|
// private MethodInformation mMethodInformation;
|
|
// public Conv_U1(ILReader aReader, MethodInformation aMethodInfo)
|
|
// : base(aReader, aMethodInfo) {
|
|
// mMethodInformation = aMethodInfo;
|
|
// mCurOffset = aReader.Position;
|
|
// mCurLabel = IL.Op.GetInstructionLabel(aReader);
|
|
// mNextLabel = IL.Op.GetInstructionLabel(aReader.NextPosition);
|
|
// }
|
|
// public override void DoAssemble() {
|
|
// if (Assembler.Stack.Peek().IsFloat) {
|
|
// EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_I1: Floats not yet implemented!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// int xSource = Assembler.Stack.Pop().Size;
|
|
// switch (xSource) {
|
|
// case 2:
|
|
// case 4: {
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
|
|
// new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
|
|
// break;
|
|
// }
|
|
// case 8: {
|
|
// new CPUx86.Pop{DestinationReg = CPUx86.Registers.EAX};
|
|
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
|
|
// new CPUx86.Push{DestinationReg=CPUx86.Registers.EAX};
|
|
// break;
|
|
// }
|
|
// case 1: {
|
|
// new CPUx86.Noop();
|
|
// break;
|
|
// }
|
|
// default:
|
|
// EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_I1: SourceSize " + xSource + " not supported", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// Assembler.Stack.Push(new StackContent(1, typeof(byte)));
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
}
|
|
}
|