Ryujinx/ChocolArm64/Instructions/InstEmitCsel.cs
Alex Barney 9cb57fb4bb Adjust naming conventions for Ryujinx and ChocolArm64 projects (#484)
* Change naming convention for Ryujinx project

* Change naming convention for ChocolArm64 project

* Fix NaN

* Remove unneeded this. from Ryujinx project

* Adjust naming from new PRs

* Name changes based on feedback

* How did this get removed?

* Rebasing fix

* Change FP enum case

* Remove prefix from ChocolArm64 classes - Part 1

* Remove prefix from ChocolArm64 classes - Part 2

* Fix alignment from last commit's renaming

* Rename namespaces

* Rename stragglers

* Fix alignment

* Rename OpCode class

* Missed a few

* Adjust alignment
2018-10-30 22:43:02 -03:00

58 lines
1.6 KiB
C#

using ChocolArm64.Decoders;
using ChocolArm64.Translation;
using System.Reflection.Emit;
namespace ChocolArm64.Instructions
{
static partial class InstEmit
{
private enum CselOperation
{
None,
Increment,
Invert,
Negate
}
public static void Csel(ILEmitterCtx context) => EmitCsel(context, CselOperation.None);
public static void Csinc(ILEmitterCtx context) => EmitCsel(context, CselOperation.Increment);
public static void Csinv(ILEmitterCtx context) => EmitCsel(context, CselOperation.Invert);
public static void Csneg(ILEmitterCtx context) => EmitCsel(context, CselOperation.Negate);
private static void EmitCsel(ILEmitterCtx context, CselOperation cselOp)
{
OpCodeCsel64 op = (OpCodeCsel64)context.CurrOp;
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.EmitCondBranch(lblTrue, op.Cond);
context.EmitLdintzr(op.Rm);
if (cselOp == CselOperation.Increment)
{
context.EmitLdc_I(1);
context.Emit(OpCodes.Add);
}
else if (cselOp == CselOperation.Invert)
{
context.Emit(OpCodes.Not);
}
else if (cselOp == CselOperation.Negate)
{
context.Emit(OpCodes.Neg);
}
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblTrue);
context.EmitLdintzr(op.Rn);
context.MarkLabel(lblEnd);
context.EmitStintzr(op.Rd);
}
}
}