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a64 emitter: fix Scalar Saturating Instructions

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SachinVin 2019-07-27 09:56:24 +05:30 committed by xperia64
parent 1a03e361c3
commit 7b6cc4ec70
2 changed files with 32 additions and 13 deletions
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37
src/backend/A64/emitter/a64_emitter.cpp
View File

@ -1998,8 +1998,27 @@ void ARM64FloatEmitter::EmitScalarThreeSame(bool U, u32 size, u32 opcode, ARM64R
Rd = DecodeReg(Rd);
Rn = DecodeReg(Rn);
Rm = DecodeReg(Rm);
int esize = 0;
switch (size) {
case 8:
esize = 0;
break;
case 16:
esize = 1;
break;
case 32:
esize = 2;
break;
case 64:
esize = 3;
break;
default:
ASSERT_MSG(false, "Size must be 8, 16, 32, or 64");
break;
}
Write32((U << 29) | (0b1011110001 << 21) | (size << 22) | (Rm << 16) |
Write32((U << 29) | (0b1011110001 << 21) | (esize << 22) | (Rm << 16) |
(opcode << 11) | (1 << 10) | (Rn << 5) | Rd);
}
@ -2799,17 +2818,17 @@ void ARM64FloatEmitter::EmitScalar3Source(bool isDouble, ARM64Reg Rd, ARM64Reg R
}
// Scalar three same
void ARM64FloatEmitter::SQADD(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(0, static_cast<u32>(esize), 0b000011, Rd, Rn, Rm);
void ARM64FloatEmitter::SQADD(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(0, size, 0b00001, Rd, Rn, Rm);
}
void ARM64FloatEmitter::SQSUB(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(0, static_cast<u32>(esize), 0b001011, Rd, Rn, Rm);
void ARM64FloatEmitter::SQSUB(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(0, size, 0b00101, Rd, Rn, Rm);
}
void ARM64FloatEmitter::UQADD(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(1, static_cast<u32>(esize), 0b000011, Rd, Rn, Rm);
void ARM64FloatEmitter::UQADD(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(1, size, 0b00001, Rd, Rn, Rm);
}
void ARM64FloatEmitter::UQSUB(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(1, static_cast<u32>(esize), 0b001011, Rd, Rn, Rm);
void ARM64FloatEmitter::UQSUB(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm) {
EmitScalarThreeSame(1, size, 0b00101, Rd, Rn, Rm);
}
// Scalar floating point immediate

8
src/backend/A64/emitter/a64_emitter.h
View File

@ -954,10 +954,10 @@ public:
void FNMSUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
// Scalar three same
void SQADD(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void UQADD(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SQSUB(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void UQSUB(ESize esize, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SQADD(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void UQADD(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SQSUB(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void UQSUB(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
// Scalar floating point immediate
void FMOV(ARM64Reg Rd, uint8_t imm8);