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A64 emitter: Support for 64bit FMOV

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This commit is contained in:
SachinVin 2019-07-14 20:48:54 +05:30
parent 1bd416aefb
commit b92195f2ae
1 changed files with 14 additions and 4 deletions
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14
src/backend/A64/emitter/a64_emitter.cpp
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@ -1140,7 +1140,7 @@ void ARM64XEmitter::MRS(ARM64Reg Rt, PStateField field) {
EncodeSystemInst(o0 | 4, op1, CRn, CRm, op2, DecodeReg(Rt)); EncodeSystemInst(o0 | 4, op1, CRn, CRm, op2, DecodeReg(Rt));
} }
void ARM64XEmitter::CNTVCT(Arm64Gen::ARM64Reg Rt) { void ARM64XEmitter::CNTVCT(ARM64Reg Rt) {
ASSERT_MSG(Is64Bit(Rt), "CNTVCT: Rt must be 64-bit"); ASSERT_MSG(Is64Bit(Rt), "CNTVCT: Rt must be 64-bit");
// MRS <Xt>, CNTVCT_EL0 ; Read CNTVCT_EL0 into Xt // MRS <Xt>, CNTVCT_EL0 ; Read CNTVCT_EL0 into Xt
@ -2677,19 +2677,29 @@ void ARM64FloatEmitter::FMOV(ARM64Reg Rd, ARM64Reg Rn, bool top) {
ASSERT_MSG(!IsQuad(Rd) && !IsQuad(Rn), "FMOV can't move to/from quads"); ASSERT_MSG(!IsQuad(Rd) && !IsQuad(Rn), "FMOV can't move to/from quads");
int rmode = 0; int rmode = 0;
int opcode = 6; int opcode = 6;
int encoded_size = 0;
int sf = 0; int sf = 0;
if (IsSingle(Rd) && !Is64Bit(Rn) && !top) { if (IsSingle(Rd) && !Is64Bit(Rn) && !top) {
// GPR to scalar single // GPR to scalar single
opcode |= 1; opcode |= 1;
} else if (!Is64Bit(Rd) && IsSingle(Rn) && !top) { } else if (!Is64Bit(Rd) && IsSingle(Rn) && !top) {
// Scalar single to GPR - defaults are correct // Scalar single to GPR - defaults are correct
} else if (Is64Bit(Rd) && IsDouble(Rn) && !top) {
// Scalar double to GPR
sf = 1;
encoded_size = 1;
} else if (IsDouble(Rd) && Is64Bit(Rn) && !top) {
// GPR to Scalar double
sf = 1;
encoded_size = 1;
opcode |= 1;
} else { } else {
// TODO // TODO
ASSERT_MSG(0, "FMOV: Unhandled case"); ASSERT_MSG(0, "FMOV: Unhandled case");
} }
Rd = DecodeReg(Rd); Rd = DecodeReg(Rd);
Rn = DecodeReg(Rn); Rn = DecodeReg(Rn);
Write32((sf << 31) | (0x1e2 << 20) | (rmode << 19) | (opcode << 16) | (Rn << 5) | Rd); Write32((sf << 31) | (encoded_size << 22) | (0x1e2 << 20) | (rmode << 19) | (opcode << 16) | (Rn << 5) | Rd);
} }
} }