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VFP: Implement VSUB

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This commit is contained in:
MerryMage 2016-08-07 01:41:25 +01:00
parent ce6b5f8210
commit 97b5fa173f
8 changed files with 81 additions and 1 deletions
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19
src/frontend/translate/translate_arm/vfp2.cpp
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@ -36,6 +36,25 @@ bool ArmTranslatorVisitor::vfp2_VADD(Cond cond, bool D, size_t Vn, size_t Vd, bo
return true;
}
bool ArmTranslatorVisitor::vfp2_VSUB(Cond cond, bool D, size_t Vn, size_t Vd, bool sz, bool N, bool M, size_t Vm) {
if (ir.current_location.FPSCR_Len() != 1 || ir.current_location.FPSCR_Stride() != 1)
return InterpretThisInstruction(); // TODO: Vectorised floating point instructions
ExtReg d = ToExtReg(sz, Vd, D);
ExtReg n = ToExtReg(sz, Vn, N);
ExtReg m = ToExtReg(sz, Vm, M);
// VSUB.{F32,F64} <{S,D}d>, <{S,D}n>, <{S,D}m>
if (ConditionPassed(cond)) {
auto a = ir.GetExtendedRegister(n);
auto b = ir.GetExtendedRegister(m);
auto result = sz
? ir.FPSub64(a, b, true)
: ir.FPSub32(a, b, true);
ir.SetExtendedRegister(d, result);
}
return true;
}
bool ArmTranslatorVisitor::vfp2_VABS(Cond cond, bool D, size_t Vd, bool sz, bool M, size_t Vm) {
if (ir.current_location.FPSCR_Len() != 1 || ir.current_location.FPSCR_Stride() != 1)
return InterpretThisInstruction(); // TODO: Vectorised floating point instructions