mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
102 lines
4.1 KiB
C#
102 lines
4.1 KiB
C#
using System;
|
|
using CPUx86 = Cosmos.IL2CPU.X86;
|
|
namespace Cosmos.IL2CPU.X86.IL
|
|
{
|
|
[Cosmos.IL2CPU.OpCode( ILOpCode.Code.Conv_U4 )]
|
|
public class Conv_U4 : ILOp
|
|
{
|
|
public Conv_U4( Cosmos.IL2CPU.Assembler aAsmblr )
|
|
: base( aAsmblr )
|
|
{
|
|
}
|
|
|
|
public override void Execute( MethodInfo aMethod, ILOpCode aOpCode )
|
|
{
|
|
// todo: WARNING: not implemented correctly!
|
|
var xStackItem = Assembler.Stack.Pop();
|
|
if( xStackItem.IsFloat )
|
|
{
|
|
//EmitNotImplementedException( Assembler, GetServiceProvider(), "Conv_U4: Floats not yet supported", mCurLabel, mMethodInformation, mCurOffset, mNextLabel );
|
|
throw new NotImplementedException();
|
|
}
|
|
switch( xStackItem.Size )
|
|
{
|
|
case 1:
|
|
case 2:
|
|
{
|
|
new CPUx86.Noop();
|
|
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 4:
|
|
{
|
|
new CPUx86.Noop();
|
|
break;
|
|
}
|
|
default:
|
|
//EmitNotImplementedException( Assembler, GetServiceProvider(), "Conv_U4: SourceSize " + xStackItem.Size + " not supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel );
|
|
throw new NotImplementedException();
|
|
}
|
|
Assembler.Stack.Push(4, typeof( uint ) ) ;
|
|
}
|
|
|
|
|
|
// using System;
|
|
//
|
|
// using CPUx86 = Cosmos.IL2CPU.X86;
|
|
// using Cosmos.IL2CPU.X86;
|
|
//
|
|
// namespace Cosmos.IL2CPU.IL.X86 {
|
|
// [OpCode(OpCodeEnum.Conv_U4)]
|
|
// public class Conv_U4: Op {
|
|
// private string mNextLabel;
|
|
// private string mCurLabel;
|
|
// private uint mCurOffset;
|
|
// private MethodInformation mMethodInformation;
|
|
// public Conv_U4(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() {
|
|
// // todo: WARNING: not implemented correctly!
|
|
// var xStackItem = Assembler.Stack.Pop();
|
|
// if (xStackItem.IsFloat) {
|
|
// EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_U4: Floats not yet supported", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// switch (xStackItem.Size) {
|
|
// case 1:
|
|
// case 2: {
|
|
// new CPUx86.Noop();
|
|
// 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 4: {
|
|
// new CPUx86.Noop();
|
|
// break;
|
|
// }
|
|
// default:
|
|
// EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_U4: SourceSize " + xStackItem.Size + " not supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
|
|
// return;
|
|
// }
|
|
// Assembler.Stack.Push(new StackContent(4, typeof(uint)));
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
}
|
|
}
|