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Add IADD3 shader instruction

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This commit is contained in:
ReinUsesLisp 2018-07-12 01:10:18 -03:00
parent f75c3091fe
commit afae5265fe
2 changed files with 78 additions and 0 deletions
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75
Ryujinx.Graphics/Gal/Shader/ShaderDecodeAlu.cs
View file

@ -173,6 +173,21 @@ namespace Ryujinx.Graphics.Gal.Shader
EmitIadd(Block, OpCode, ShaderOper.RR);
}
public static void Iadd3_C(ShaderIrBlock Block, long OpCode)
{
EmitIadd3(Block, OpCode, ShaderOper.CR);
}
public static void Iadd3_I(ShaderIrBlock Block, long OpCode)
{
EmitIadd3(Block, OpCode, ShaderOper.Imm);
}
public static void Iadd3_R(ShaderIrBlock Block, long OpCode)
{
EmitIadd3(Block, OpCode, ShaderOper.RR);
}
public static void Imnmx_C(ShaderIrBlock Block, long OpCode)
{
EmitImnmx(Block, OpCode, ShaderOper.CR);
@ -617,6 +632,66 @@ namespace Ryujinx.Graphics.Gal.Shader
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), Op), OpCode));
}
private static void EmitIadd3(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
int Mode = (int)((OpCode >> 37) & 3);
bool Neg1 = ((OpCode >> 51) & 1) != 0;
bool Neg2 = ((OpCode >> 50) & 1) != 0;
bool Neg3 = ((OpCode >> 49) & 1) != 0;
int Height1 = (int)((OpCode >> 35) & 3);
int Height2 = (int)((OpCode >> 33) & 3);
int Height3 = (int)((OpCode >> 31) & 3);
ShaderIrNode OperB;
switch (Oper)
{
case ShaderOper.CR: OperB = GetOperCbuf34 (OpCode); break;
case ShaderOper.Imm: OperB = GetOperImm19_20(OpCode); break;
case ShaderOper.RR: OperB = GetOperGpr20 (OpCode); break;
default: throw new ArgumentException(nameof(Oper));
}
ShaderIrNode ApplyHeight(ShaderIrNode Src, int Height)
{
if (Oper != ShaderOper.RR)
{
return Src;
}
switch (Height)
{
case 0: return Src;
case 1: return new ShaderIrOp(ShaderIrInst.And, Src, new ShaderIrOperImm(0xffff));
case 2: return new ShaderIrOp(ShaderIrInst.Lsr, Src, new ShaderIrOperImm(16));
default: throw new InvalidOperationException();
}
}
ShaderIrNode Src1 = GetAluIneg(ApplyHeight(GetOperGpr8(OpCode), Height1), Neg1);
ShaderIrNode Src2 = GetAluIneg(ApplyHeight(OperB, Height2), Neg2);
ShaderIrNode Src3 = GetAluIneg(ApplyHeight(GetOperGpr39(OpCode), Height3), Neg3);
ShaderIrOp Sum = new ShaderIrOp(ShaderIrInst.Add, Src1, Src2);
if (Oper == ShaderOper.RR)
{
switch (Mode)
{
case 1: Sum = new ShaderIrOp(ShaderIrInst.Lsr, Sum, new ShaderIrOperImm(16)); break;
case 2: Sum = new ShaderIrOp(ShaderIrInst.Lsl, Sum, new ShaderIrOperImm(16)); break;
}
}
//TODO: What would "add_with_carry" mean in this context? Just add Sum to Src3 for now
Block.AddNode(GetPredNode(new ShaderIrAsg(GetOperGpr0(OpCode), new ShaderIrOp(ShaderIrInst.Add, Sum, Src3)), OpCode));
}
private static void EmitIscadd(ShaderIrBlock Block, long OpCode, ShaderOper Oper)
{
bool NegB = ((OpCode >> 48) & 1) != 0;

3
Ryujinx.Graphics/Gal/Shader/ShaderOpCodeTable.cs
View file

@ -68,6 +68,9 @@ namespace Ryujinx.Graphics.Gal.Shader
Set("0100110000010x", ShaderDecode.Iadd_C);
Set("0011100000010x", ShaderDecode.Iadd_I);
Set("0101110000010x", ShaderDecode.Iadd_R);
Set("010011001100xx", ShaderDecode.Iadd3_C);
Set("001110001100xx", ShaderDecode.Iadd3_I);
Set("010111001100xx", ShaderDecode.Iadd3_R);
Set("0100110000100x", ShaderDecode.Imnmx_C);
Set("0011100x00100x", ShaderDecode.Imnmx_I);
Set("0101110000100x", ShaderDecode.Imnmx_R);