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[AArch64] Implement a couple of emitter instructions.

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These will be used with the vertex loader JIT recompiler.
This commit is contained in:
Ryan Houdek
2015-02-12 18:47:06 -06:00
parent 0252bbb33f
commit 814aaaf538
2 changed files with 60 additions and 2 deletions
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52
Source/Core/Common/Arm64Emitter.cpp
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@ -1006,6 +1006,10 @@ void ARM64XEmitter::SMADDL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
{
EncodeData3SrcInst(2, Rd, Rn, Rm, Ra);
}
void ARM64XEmitter::SMULL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
{
SMADDL(Rd, Rn, Rm, SP);
}
void ARM64XEmitter::SMSUBL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
{
EncodeData3SrcInst(3, Rd, Rn, Rm, Ra);
@ -1850,6 +1854,18 @@ void ARM64FloatEmitter::EmitScalar1Source(bool M, bool S, u32 type, u32 opcode,
(opcode << 15) | (1 << 14) | (Rn << 5) | Rd);
}
void ARM64FloatEmitter::EmitVectorxElement(bool U, u32 size, bool L, u32 opcode, bool H, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
{
bool quad = IsQuad(Rd);
Rd = DecodeReg(Rd);
Rn = DecodeReg(Rn);
Rm = DecodeReg(Rm);
Write32((quad << 30) | (U << 29) | (0b01111 << 24) | (size << 22) | (L << 21) | \
(Rm << 16) | (opcode << 12) | (H << 11) | (Rn << 5) | Rd);
}
void ARM64FloatEmitter::LDR(u8 size, IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
{
EmitLoadStoreImmediate(size, 1, type, Rt, Rn, imm);
@ -2092,6 +2108,21 @@ void ARM64FloatEmitter::LD1(u8 size, u8 count, ARM64Reg Rt, ARM64Reg Rn)
opcode = 0b0010;
EmitLoadStoreMultipleStructure(size, 1, opcode, Rt, Rn);
}
void ARM64FloatEmitter::ST1(u8 size, u8 count, ARM64Reg Rt, ARM64Reg Rn)
{
_assert_msg_(DYNA_REC, !(count == 0 || count > 4), "%s must have a count of 1 to 4 registers!", __FUNCTION__);
u32 opcode = 0;
if (count == 1)
opcode = 0b111;
else if (count == 2)
opcode = 0b1010;
else if (count == 3)
opcode = 0b0110;
else if (count == 4)
opcode = 0b0010;
EmitLoadStoreMultipleStructure(size, 0, opcode, Rt, Rn);
}
// Scalar - 1 Source
void ARM64FloatEmitter::FABS(ARM64Reg Rd, ARM64Reg Rn)
{
@ -2581,6 +2612,27 @@ void ARM64FloatEmitter::UXTL(u8 src_size, ARM64Reg Rd, ARM64Reg Rn)
USHLL(src_size, Rd, Rn, 0);
}
// vector x indexed element
void ARM64FloatEmitter::FMUL(u8 size, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, u8 index)
{
_assert_msg_(DYNA_REC, size == 32 || size == 64, "%s only supports 32bit or 64bit size!", __FUNCTION__);
bool L = false;
bool H = false;
if (size == 32)
{
L = index & 1;
H = (index >> 1) & 1;
}
else if (size == 64)
{
H = index == 1;
}
EmitVectorxElement(0, 2 | (size >> 6), L, 0b1001, H, Rd, Rn, Rm);
}
void ARM64FloatEmitter::ABI_PushRegisters(BitSet32 registers)
{
for (auto it : registers)