ryujinx/Ryujinx/Cpu/Instruction/AInstEmitScalar.cs

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2018-02-05 00:08:20 +01:00
using ChocolArm64.Decoder;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection;
using System.Reflection.Emit;
namespace ChocolArm64.Instruction
{
static partial class AInstEmit
{
public static void Addp_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvec(Op.Rn);
Context.EmitLdc_I4(Op.Size);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.Addp_S));
Context.EmitStvec(Op.Rd);
}
public static void Dup_S(AILEmitterCtx Context)
{
AOpCodeSimdIns Op = (AOpCodeSimdIns)Context.CurrOp;
Context.EmitLdvec(Op.Rn);
Context.EmitLdc_I4(Op.DstIndex);
Context.EmitLdc_I4(Op.Size);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.Dup_S));
Context.EmitStvec(Op.Rd);
}
public static void Fabs_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
MethodInfo MthdInfo;
if (Op.Size == 0)
{
MthdInfo = typeof(MathF).GetMethod(nameof(MathF.Abs), new Type[] { typeof(float) });
}
else if (Op.Size == 1)
{
MthdInfo = typeof(Math).GetMethod(nameof(Math.Abs), new Type[] { typeof(double) });
}
else
{
throw new InvalidOperationException();
}
Context.EmitCall(MthdInfo);
Context.EmitStvecsf(Op.Rd);
}
public static void Fadd_S(AILEmitterCtx Context) => EmitScalarOp(Context, OpCodes.Add);
public static void Fccmp_S(AILEmitterCtx Context)
{
AOpCodeSimdFcond Op = (AOpCodeSimdFcond)Context.CurrOp;
AILLabel LblTrue = new AILLabel();
AILLabel LblEnd = new AILLabel();
Context.EmitCondBranch(LblTrue, Op.Cond);
//TODO: Share this logic with Ccmp.
Context.EmitLdc_I4((Op.NZCV >> 0) & 1);
Context.EmitStflg((int)APState.VBit);
Context.EmitLdc_I4((Op.NZCV >> 1) & 1);
Context.EmitStflg((int)APState.CBit);
Context.EmitLdc_I4((Op.NZCV >> 2) & 1);
Context.EmitStflg((int)APState.ZBit);
Context.EmitLdc_I4((Op.NZCV >> 3) & 1);
Context.EmitStflg((int)APState.NBit);
Context.Emit(OpCodes.Br_S, LblEnd);
Context.MarkLabel(LblTrue);
Fcmp_S(Context);
Context.MarkLabel(LblEnd);
}
public static void Fcmp_S(AILEmitterCtx Context)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
bool CmpWithZero = !(Op is AOpCodeSimdFcond) ? Op.Bit3 : false;
//todo
//Context.TryMarkCondWithoutCmp();
void EmitLoadOpers()
{
Context.EmitLdvecsf(Op.Rn);
if (CmpWithZero)
{
EmitLdcImmF(Context, 0, Op.Size);
}
else
{
Context.EmitLdvecsf(Op.Rm);
}
}
//Z = Rn == Rm
EmitLoadOpers();
Context.Emit(OpCodes.Ceq);
Context.Emit(OpCodes.Dup);
Context.EmitStflg((int)APState.ZBit);
//C = Rn >= Rm
EmitLoadOpers();
Context.Emit(OpCodes.Cgt);
Context.Emit(OpCodes.Or);
Context.EmitStflg((int)APState.CBit);
//N = Rn < Rm
EmitLoadOpers();
Context.Emit(OpCodes.Clt);
Context.EmitStflg((int)APState.NBit);
//Handle NaN case. If any number is NaN, then NZCV = 0011.
AILLabel LblNotNaN = new AILLabel();
if (CmpWithZero)
{
EmitNaNCheck(Context, Op.Rn);
}
else
{
EmitNaNCheck(Context, Op.Rn);
EmitNaNCheck(Context, Op.Rm);
Context.Emit(OpCodes.Or);
}
Context.Emit(OpCodes.Brfalse_S, LblNotNaN);
Context.EmitLdc_I4(1);
Context.EmitLdc_I4(1);
Context.EmitStflg((int)APState.CBit);
Context.EmitStflg((int)APState.VBit);
Context.MarkLabel(LblNotNaN);
}
public static void Fcmpe_S(AILEmitterCtx Context)
{
//TODO: Raise exception if value is NaN, how to handle exceptions?
Fcmp_S(Context);
}
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public static void Fcsel_S(AILEmitterCtx Context)
{
AOpCodeSimdFcond Op = (AOpCodeSimdFcond)Context.CurrOp;
AILLabel LblTrue = new AILLabel();
AILLabel LblEnd = new AILLabel();
Context.EmitCondBranch(LblTrue, Op.Cond);
Context.EmitLdvecsf(Op.Rm);
Context.EmitStvecsf(Op.Rd);
Context.Emit(OpCodes.Br_S, LblEnd);
Context.MarkLabel(LblTrue);
Context.EmitLdvecsf(Op.Rn);
Context.EmitStvecsf(Op.Rd);
Context.MarkLabel(LblEnd);
}
public static void Fcvt_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
EmitFloatCast(Context, Op.Opc);
Context.EmitStvecsf(Op.Rd);
}
public static void Fcvtms_S(AILEmitterCtx Context) => EmitMathOpCvtToInt(Context, nameof(Math.Floor));
public static void Fcvtps_S(AILEmitterCtx Context) => EmitMathOpCvtToInt(Context, nameof(Math.Ceiling));
public static void Fcvtzs_S(AILEmitterCtx Context) => EmitFcvtz_(Context, true);
public static void Fcvtzu_S(AILEmitterCtx Context) => EmitFcvtz_(Context, false);
private static void EmitFcvtz_(AILEmitterCtx Context, bool Signed)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
if (Signed)
{
EmitCvtToInt(Context, Op.Size);
}
else
{
EmitCvtToUInt(Context, Op.Size);
}
Context.EmitStintzr(Op.Rd);
}
public static void Fcvtzs_Fix(AILEmitterCtx Context) => EmitFcvtz__Fix(Context, true);
public static void Fcvtzu_Fix(AILEmitterCtx Context) => EmitFcvtz__Fix(Context, false);
private static void EmitFcvtz__Fix(AILEmitterCtx Context, bool Signed)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
EmitLdcImmF(Context, 1L << Op.FBits, Op.Size);
Context.Emit(OpCodes.Mul);
if (Signed)
{
EmitCvtToInt(Context, Op.Size);
}
else
{
EmitCvtToUInt(Context, Op.Size);
}
Context.EmitStintzr(Op.Rd);
}
public static void Fdiv_S(AILEmitterCtx Context) => EmitScalarOp(Context, OpCodes.Div);
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public static void Fmadd_S(AILEmitterCtx Context)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsf(Op.Ra);
Context.EmitLdvecsf(Op.Rn);
Context.EmitLdvecsf(Op.Rm);
Context.Emit(OpCodes.Mul);
Context.Emit(OpCodes.Add);
Context.EmitStvecsf(Op.Rd);
}
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public static void Fmax_S(AILEmitterCtx Context) => EmitMathOp3(Context, nameof(Math.Max));
public static void Fmin_S(AILEmitterCtx Context) => EmitMathOp3(Context, nameof(Math.Min));
public static void Fmaxnm_S(AILEmitterCtx Context) => EmitMathOp3(Context, nameof(Math.Max));
public static void Fminnm_S(AILEmitterCtx Context) => EmitMathOp3(Context, nameof(Math.Min));
public static void Fmov_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
Context.EmitStvecsf(Op.Rd);
}
public static void Fmov_Si(AILEmitterCtx Context)
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{
AOpCodeSimdFmov Op = (AOpCodeSimdFmov)Context.CurrOp;
Context.EmitLdc_I8(Op.Imm);
Context.EmitLdc_I4(0);
Context.EmitLdc_I4(Op.Size + 2);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.Fmov_S));
Context.EmitStvec(Op.Rd);
}
public static void Fmov_Ftoi(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdvecsi(Op.Rn);
Context.EmitStintzr(Op.Rd);
}
public static void Fmov_Itof(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
Context.EmitStvecsi(Op.Rd);
}
public static void Fmov_Ftoi1(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdvec(Op.Rn);
Context.EmitLdc_I4(1);
Context.EmitLdc_I4(3);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.ExtractVec));
Context.EmitStintzr(Op.Rd);
}
public static void Fmov_Itof1(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
Context.EmitLdc_I4(1);
Context.EmitLdc_I4(3);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.Fmov_S));
Context.EmitStvec(Op.Rd);
}
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public static void Fmsub_S(AILEmitterCtx Context)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsf(Op.Ra);
Context.EmitLdvecsf(Op.Rn);
Context.Emit(OpCodes.Neg);
Context.EmitLdvecsf(Op.Rm);
Context.Emit(OpCodes.Mul);
Context.Emit(OpCodes.Sub);
Context.EmitStvecsf(Op.Rd);
}
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public static void Fmul_S(AILEmitterCtx Context) => EmitScalarOp(Context, OpCodes.Mul);
public static void Fneg_S(AILEmitterCtx Context) => EmitScalarOp(Context, OpCodes.Neg);
public static void Fnmul_S(AILEmitterCtx Context)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
Context.EmitLdvecsf(Op.Rm);
Context.Emit(OpCodes.Mul);
Context.Emit(OpCodes.Neg);
Context.EmitStvecsf(Op.Rd);
}
public static void Frinta_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
Context.EmitLdc_I4((int)MidpointRounding.AwayFromZero);
MethodInfo MthdInfo;
if (Op.Size == 0)
{
Type[] Types = new Type[] { typeof(float), typeof(MidpointRounding) };
MthdInfo = typeof(MathF).GetMethod(nameof(MathF.Round), Types);
}
else if (Op.Size == 1)
{
Type[] Types = new Type[] { typeof(double), typeof(MidpointRounding) };
MthdInfo = typeof(Math).GetMethod(nameof(Math.Round), Types);
}
else
{
throw new InvalidOperationException();
}
Context.EmitCall(MthdInfo);
Context.EmitStvecsf(Op.Rd);
}
public static void Frintm_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
MethodInfo MthdInfo;
if (Op.Size == 0)
{
MthdInfo = typeof(MathF).GetMethod(nameof(MathF.Floor), new Type[] { typeof(float) });
}
else if (Op.Size == 1)
{
MthdInfo = typeof(Math).GetMethod(nameof(Math.Floor), new Type[] { typeof(double) });
}
else
{
throw new InvalidOperationException();
}
Context.EmitCall(MthdInfo);
Context.EmitStvecsf(Op.Rd);
}
public static void Fsqrt_S(AILEmitterCtx Context) => EmitMathOp2(Context, nameof(Math.Sqrt));
public static void Fsub_S(AILEmitterCtx Context) => EmitScalarOp(Context, OpCodes.Sub);
public static void Scvtf_Gp(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
EmitFloatCast(Context, Op.Size);
Context.EmitStvecsf(Op.Rd);
}
public static void Scvtf_S(AILEmitterCtx Context)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsi(Op.Rn);
EmitFloatCast(Context, Op.Size);
Context.EmitStvecsf(Op.Rd);
}
public static void Shl_S(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
Context.EmitLdvecsi(Op.Rn);
Context.EmitLdc_I4(Op.Imm - (8 << Op.Size));
Context.Emit(OpCodes.Shl);
Context.EmitStvecsi(Op.Rd);
}
public static void Sshr_S(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
Context.EmitLdvecsi(Op.Rn);
Context.EmitLdc_I4((8 << (Op.Size + 1)) - Op.Imm);
Context.Emit(OpCodes.Shr);
Context.EmitStvecsi(Op.Rd);
}
public static void Sub_S(AILEmitterCtx Context)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsi(Op.Rn);
Context.EmitLdvecsi(Op.Rm);
Context.Emit(OpCodes.Sub);
Context.EmitStvecsi(Op.Rd);
}
public static void Ucvtf_Gp(AILEmitterCtx Context)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
Context.Emit(OpCodes.Conv_R_Un);
EmitFloatCast(Context, Op.Size);
Context.EmitStvecsf(Op.Rd);
}
private static void EmitScalarOp(AILEmitterCtx Context, OpCode ILOp)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
//Negate and Not are the only unary operations supported on IL.
//"Not" doesn't work with floats, so we don't need to compare it.
if (ILOp != OpCodes.Neg)
{
Context.EmitLdvecsf(Op.Rm);
}
Context.Emit(ILOp);
Context.EmitStvecsf(Op.Rd);
}
private static void EmitMathOp2(AILEmitterCtx Context, string Name)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
EmitMathOpCall(Context, Name);
Context.EmitStvecsf(Op.Rd);
}
private static void EmitMathOp3(AILEmitterCtx Context, string Name)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
Context.EmitLdvecsf(Op.Rm);
MethodInfo MthdInfo;
if (Op.Size == 0)
{
MthdInfo = typeof(MathF).GetMethod(Name, new Type[] { typeof(float), typeof(float) });
}
else if (Op.Size == 1)
{
MthdInfo = typeof(Math).GetMethod(Name, new Type[] { typeof(double), typeof(double) });
}
else
{
throw new InvalidOperationException();
}
Context.EmitCall(MthdInfo);
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Context.EmitStvecsf(Op.Rd);
}
public static void EmitMathOpCvtToInt(AILEmitterCtx Context, string Name)
{
AOpCodeSimdCvt Op = (AOpCodeSimdCvt)Context.CurrOp;
Context.EmitLdvecsf(Op.Rn);
EmitMathOpCall(Context, Name);
EmitCvtToInt(Context, Op.Size);
Context.EmitStintzr(Op.Rd);
}
private static void EmitMathOpCall(AILEmitterCtx Context, string Name)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
MethodInfo MthdInfo;
if (Op.Size == 0)
{
MthdInfo = typeof(MathF).GetMethod(Name);
}
else if (Op.Size == 1)
{
MthdInfo = typeof(Math).GetMethod(Name);
}
else
{
throw new InvalidOperationException();
}
Context.EmitCall(MthdInfo);
}
private static void EmitCvtToInt(AILEmitterCtx Context, int Size)
{
if (Size < 0 || Size > 1)
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
Context.EmitLdc_I4(0);
if (Context.CurrOp.RegisterSize == ARegisterSize.Int32)
{
if (Size == 0)
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatSingleToInt32));
}
else /* if (Size == 1) */
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatDoubleToInt32));
}
}
else
{
if (Size == 0)
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatSingleToInt64));
}
else /* if (Size == 1) */
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatDoubleToInt64));
}
}
}
private static void EmitCvtToUInt(AILEmitterCtx Context, int Size)
{
if (Size < 0 || Size > 1)
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
Context.EmitLdc_I4(0);
if (Context.CurrOp.RegisterSize == ARegisterSize.Int32)
{
if (Size == 0)
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatSingleToUInt32));
}
else /* if (Size == 1) */
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatDoubleToUInt32));
}
}
else
{
if (Size == 0)
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatSingleToUInt64));
}
else /* if (Size == 1) */
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.SatDoubleToUInt64));
}
}
}
private static void EmitFloatCast(AILEmitterCtx Context, int Size)
{
if (Size == 0)
{
Context.Emit(OpCodes.Conv_R4);
}
else if (Size == 1)
{
Context.Emit(OpCodes.Conv_R8);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
private static void EmitLdcImmF(AILEmitterCtx Context, double ImmF, int Size)
{
if (Size == 0)
{
Context.EmitLdc_R4((float)ImmF);
}
else if (Size == 1)
{
Context.EmitLdc_R8(ImmF);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
private static void EmitNaNCheck(AILEmitterCtx Context, int Index)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
Context.EmitLdvecsf(Index);
if (Op.Size == 0)
{
Context.EmitCall(typeof(float), nameof(float.IsNaN));
}
else if (Op.Size == 1)
{
Context.EmitCall(typeof(double), nameof(double.IsNaN));
}
else
{
throw new InvalidOperationException();
}
}
}
}