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PPU: implement VNMSUBFP (precise variant)

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This commit is contained in:
Nekotekina 2020-06-07 22:43:22 +03:00
parent 3b8e7d0967
commit 5d27f1c732
2 changed files with 14 additions and 2 deletions
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13
rpcs3/Emu/Cell/PPUInterpreter.cpp
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@ -1458,7 +1458,7 @@ bool ppu_interpreter::VMULOUH(ppu_thread& ppu, ppu_opcode_t op)
return true;
}
bool ppu_interpreter::VNMSUBFP(ppu_thread& ppu, ppu_opcode_t op)
bool ppu_interpreter_fast::VNMSUBFP(ppu_thread& ppu, ppu_opcode_t op)
{
const auto a = _mm_sub_ps(_mm_mul_ps(ppu.vr[op.va].vf, ppu.vr[op.vc].vf), ppu.vr[op.vb].vf);
const auto b = _mm_set1_ps(-0.0f);
@ -1467,6 +1467,17 @@ bool ppu_interpreter::VNMSUBFP(ppu_thread& ppu, ppu_opcode_t op)
return true;
}
bool ppu_interpreter_precise::VNMSUBFP(ppu_thread& ppu, ppu_opcode_t op)
{
const auto m = _mm_set1_ps(-0.0f);
const auto a = ppu.vr[op.va];
const auto c = ppu.vr[op.vc];
const auto b = v128::fromF(_mm_xor_ps(ppu.vr[op.vb].vf, m));
const auto r = v128::fromF(_mm_xor_ps(v128::fma32f(a, c, b).vf, m));
ppu.vr[op.rd] = vec_handle_nan(r, a, b, c);
return true;
}
bool ppu_interpreter::VNOR(ppu_thread& ppu, ppu_opcode_t op)
{
ppu.vr[op.vd] = ~(ppu.vr[op.va] | ppu.vr[op.vb]);

3
rpcs3/Emu/Cell/PPUInterpreter.h
View File

@ -73,7 +73,6 @@ struct ppu_interpreter
static bool VMULOSH(ppu_thread&, ppu_opcode_t);
static bool VMULOUB(ppu_thread&, ppu_opcode_t);
static bool VMULOUH(ppu_thread&, ppu_opcode_t);
static bool VNMSUBFP(ppu_thread&, ppu_opcode_t);
static bool VNOR(ppu_thread&, ppu_opcode_t);
static bool VOR(ppu_thread&, ppu_opcode_t);
static bool VPERM(ppu_thread&, ppu_opcode_t);
@ -373,6 +372,7 @@ struct ppu_interpreter_precise final : ppu_interpreter
static bool VCTSXS(ppu_thread&, ppu_opcode_t);
static bool VCTUXS(ppu_thread&, ppu_opcode_t);
static bool VMADDFP(ppu_thread&, ppu_opcode_t);
static bool VNMSUBFP(ppu_thread&, ppu_opcode_t);
static bool FDIVS(ppu_thread&, ppu_opcode_t);
static bool FSUBS(ppu_thread&, ppu_opcode_t);
@ -430,6 +430,7 @@ struct ppu_interpreter_fast final : ppu_interpreter
static bool VCTSXS(ppu_thread&, ppu_opcode_t);
static bool VCTUXS(ppu_thread&, ppu_opcode_t);
static bool VMADDFP(ppu_thread&, ppu_opcode_t);
static bool VNMSUBFP(ppu_thread&, ppu_opcode_t);
static bool FDIVS(ppu_thread&, ppu_opcode_t);
static bool FSUBS(ppu_thread&, ppu_opcode_t);