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VFPv5: Implement VMAXNM

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This commit is contained in:
MerryMage 2020-06-19 19:29:23 +01:00
parent 4df3b2f97f
commit 6e7ea151a3
4 changed files with 21 additions and 1 deletions
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2
src/frontend/A32/decoder/vfp.inc
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@ -13,7 +13,7 @@ INST(vfp_VFNMA, "VFNMA", "cccc11101D01nnnndddd101zN
INST(vfp_VFMA, "VFMA", "cccc11101D10nnnndddd101zN0M0mmmm") // VFPv4
INST(vfp_VFMS, "VFMS", "cccc11101D10nnnndddd101zN1M0mmmm") // VFPv4
//INST(vfp_VSEL, "VSEL", "111111100Dccnnnndddd101zN0M0mmmm") // VFPv5
//INST(vfp_VMAXNM, "VMAXNNM", "111111101D00nnnndddd101zN0M0mmmm") // VFPv5
INST(vfp_VMAXNM, "VMAXNNM", "111111101D00nnnndddd101zN0M0mmmm") // VFPv5
//INST(vfp_VMINNM, "VMINNM", "111111101D00nnnndddd101zN1M0mmmm") // VFPv5
// Other floating-point data-processing instructions

4
src/frontend/A32/disassembler/disassembler_arm.cpp
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@ -1274,6 +1274,10 @@ public:
return fmt::format("vfma{}.{} {}, {}, {}", CondToString(cond), sz ? "f64" : "f32", FPRegStr(sz, Vd, D), FPRegStr(sz, Vn, N), FPRegStr(sz, Vm, M));
}
std::string vfp_VMAXNM(bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm) {
return fmt::format("vmaxnm.{} {}, {}, {}", sz ? "f64" : "f32", FPRegStr(sz, Vd, D), FPRegStr(sz, Vn, N), FPRegStr(sz, Vm, M));
}
std::string vfp_VMOV_imm(Cond cond, bool D, Imm<4> imm4H, size_t Vd, bool sz, Imm<4> imm4L) {
const auto imm8 = concatenate(imm4H, imm4L);

1
src/frontend/A32/translate/impl/translate_arm.h
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@ -392,6 +392,7 @@ struct ArmTranslatorVisitor final {
bool vfp_VFNMA(Cond cond, bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm);
bool vfp_VFMA(Cond cond, bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm);
bool vfp_VFMS(Cond cond, bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm);
bool vfp_VMAXNM(bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm);
// Floating-point move instructions
bool vfp_VMOV_imm(Cond cond, bool D, Imm<4> imm4H, size_t Vd, bool sz, Imm<4> imm4L);

15
src/frontend/A32/translate/impl/vfp.cpp
View file

@ -336,6 +336,21 @@ bool ArmTranslatorVisitor::vfp_VFMS(Cond cond, bool D, size_t Vn, size_t Vd, boo
});
}
// VMAXNM.F64 <Dd>, <Dn>, <Dm>
// VMAXNM.F32 <Sd>, <Sn>, <Sm>
bool ArmTranslatorVisitor::vfp_VMAXNM(bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm) {
const auto d = ToExtReg(sz, Vd, D);
const auto n = ToExtReg(sz, Vn, N);
const auto m = ToExtReg(sz, Vm, M);
return EmitVfpVectorOperation(sz, d, n, m, [this](ExtReg d, ExtReg n, ExtReg m) {
const auto reg_n = ir.GetExtendedRegister(n);
const auto reg_m = ir.GetExtendedRegister(m);
const auto result = ir.FPMaxNumeric(reg_n, reg_m, true);
ir.SetExtendedRegister(d, result);
});
}
// VMOV<c>.32 <Dd[0]>, <Rt>
bool ArmTranslatorVisitor::vfp_VMOV_u32_f64(Cond cond, size_t Vd, Reg t, bool D) {
if (t == Reg::PC) {