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[AArch64] Add ASIMD LDR/STR with register offset

This commit is contained in:
Ryan Houdek 2015-06-07 19:53:05 -05:00
parent 05b72c5d31
commit 8ae12d8005
2 changed files with 60 additions and 0 deletions
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55
Source/Core/Common/Arm64Emitter.cpp
View File

@ -2439,6 +2439,51 @@ void ARM64FloatEmitter::EncodeLoadStorePair(u32 size, bool load, IndexType type,
}
void ARM64FloatEmitter::EncodeLoadStoreRegisterOffset(u32 size, bool load, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm)
{
_assert_msg_(DYNA_REC, Rm.GetType() == ArithOption::TYPE_EXTENDEDREG, "%s must contain an extended reg as Rm!", __FUNCTION__);
u32 encoded_size = 0;
u32 encoded_op = 0;
bool shift = false;
if (size == 8)
{
encoded_size = 0;
encoded_op = 0;
}
else if (size == 16)
{
encoded_size = 1;
encoded_op = 0;
}
else if (size == 32)
{
encoded_size = 2;
encoded_op = 0;
}
else if (size == 64)
{
encoded_size = 3;
encoded_op = 0;
}
else if (size == 128)
{
encoded_size = 0;
encoded_op = 2;
}
if (load)
encoded_op |= 1;
Rt = DecodeReg(Rt);
Rn = DecodeReg(Rn);
ARM64Reg decoded_Rm = DecodeReg(Rm.GetReg());
Write32((encoded_size << 30) | (encoded_op << 22) | (0b111100001 << 21) | (decoded_Rm << 16) | \
Rm.GetData() | (1 << 11) | (Rn << 5) | Rt);
}
void ARM64FloatEmitter::LDR(u8 size, IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
{
EmitLoadStoreImmediate(size, 1, type, Rt, Rn, imm);
@ -2840,6 +2885,16 @@ void ARM64FloatEmitter::STP(u8 size, IndexType type, ARM64Reg Rt, ARM64Reg Rt2,
EncodeLoadStorePair(size, false, type, Rt, Rt2, Rn, imm);
}
// Loadstore register offset
void ARM64FloatEmitter::STR(u8 size, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm)
{
EncodeLoadStoreRegisterOffset(size, false, Rt, Rn, Rm);
}
void ARM64FloatEmitter::LDR(u8 size, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm)
{
EncodeLoadStoreRegisterOffset(size, true, Rt, Rn, Rm);
}
void ARM64FloatEmitter::FABS(ARM64Reg Rd, ARM64Reg Rn)
{
EmitScalar1Source(0, 0, IsDouble(Rd), 1, Rd, Rn);

5
Source/Core/Common/Arm64Emitter.h
View File

@ -763,6 +763,10 @@ public:
void LDP(u8 size, IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm);
void STP(u8 size, IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm);
// Loadstore register offset
void STR(u8 size, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm);
void LDR(u8 size, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm);
// Scalar - 1 Source
void FABS(ARM64Reg Rd, ARM64Reg Rn);
void FNEG(ARM64Reg Rd, ARM64Reg Rn);
@ -923,6 +927,7 @@ private:
void EmitConvertScalarToInt(ARM64Reg Rd, ARM64Reg Rn, RoundingMode round, bool sign);
void EmitScalar3Source(bool isDouble, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra, int opcode);
void EncodeLoadStorePair(u32 size, bool load, IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm);
void EncodeLoadStoreRegisterOffset(u32 size, bool load, ARM64Reg Rt, ARM64Reg Rn, ArithOption Rm);
void SSHLL(u8 src_size, ARM64Reg Rd, ARM64Reg Rn, u32 shift, bool upper);
void USHLL(u8 src_size, ARM64Reg Rd, ARM64Reg Rn, u32 shift, bool upper);