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| author | LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com> | 2020-12-07 10:37:07 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-07 10:37:07 +0100 |
| commit | 567ea726e173040ae931a37bc85fd6cd92b69363 (patch) | |
| tree | 5b6487d4821c978659732d5f34abf5aa69b0dafa /ARMeilleure/Instructions/InstEmitSimdHelper.cs | |
| parent | 668720b0883106fc1f44da70dddb8a3502ac7dbb (diff) | |
Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr) modes (fast paths). (#1630)
* Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr) modes (fast paths).
* Ptc.InternalVersion = 1630
* Nits.
* Address comments.
* Update Ptc.cs
* Address comment.
Diffstat (limited to 'ARMeilleure/Instructions/InstEmitSimdHelper.cs')
| -rw-r--r-- | ARMeilleure/Instructions/InstEmitSimdHelper.cs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/ARMeilleure/Instructions/InstEmitSimdHelper.cs b/ARMeilleure/Instructions/InstEmitSimdHelper.cs index 69e79a6d..eab891ec 100644 --- a/ARMeilleure/Instructions/InstEmitSimdHelper.cs +++ b/ARMeilleure/Instructions/InstEmitSimdHelper.cs @@ -1189,6 +1189,39 @@ namespace ARMeilleure.Instructions } } + [Flags] + public enum Mxcsr + { + Ftz = 1 << 15, // Flush To Zero. + Um = 1 << 11, // Underflow Mask. + Dm = 1 << 8, // Denormal Mask. + Daz = 1 << 6 // Denormals Are Zero. + } + + public static void EmitSseOrAvxEnterFtzAndDazModesOpF(ArmEmitterContext context, out Operand isTrue) + { + isTrue = context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz))); + + Operand lblTrue = Label(); + context.BranchIfFalse(lblTrue, isTrue); + + context.AddIntrinsicNoRet(Intrinsic.X86Mxcsrmb, Const((int)(Mxcsr.Ftz | Mxcsr.Um | Mxcsr.Dm | Mxcsr.Daz))); + + context.MarkLabel(lblTrue); + } + + public static void EmitSseOrAvxExitFtzAndDazModesOpF(ArmEmitterContext context, Operand isTrue = null) + { + isTrue ??= context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz))); + + Operand lblTrue = Label(); + context.BranchIfFalse(lblTrue, isTrue); + + context.AddIntrinsicNoRet(Intrinsic.X86Mxcsrub, Const((int)(Mxcsr.Ftz | Mxcsr.Daz))); + + context.MarkLabel(lblTrue); + } + public enum CmpCondition { // Legacy Sse. |