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Fixing vperm.

This commit is contained in:
Ben Vanik 2013-10-06 16:25:41 -07:00
parent b77403e754
commit 87481f5f4c
1 changed files with 22 additions and 11 deletions
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33
src/xenia/cpu/x64/x64_emit_altivec.cc
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@ -380,6 +380,7 @@ XEEMITTER(lvrxl128, VX128_1(4, 1603), VX128_1)(X64Emitter& e, X86Compiler&
return InstrEmit_lvrx128(e, c, i);
}
// TODO(benvanik): implement for real - this is in the memcpy path.
static void __emulated_stvlx(uint64_t addr, __m128i vd) {
// addr here is the fully translated address.
const uint8_t eb = addr & 0xF;
@ -423,6 +424,7 @@ XEEMITTER(stvlxl128, VX128_1(4, 1795), VX128_1)(X64Emitter& e, X86Compiler&
return InstrEmit_stvlx128(e, c, i);
}
// TODO(benvanik): implement for real - this is in the memcpy path.
static void __emulated_stvrx(uint64_t addr, __m128i vd) {
// addr here is the fully translated address.
const uint8_t eb = addr & 0xF;
@ -1263,23 +1265,32 @@ XEEMITTER(vor128, VX128(5, 720), VX128 )(X64Emitter& e, X86Compiler&
return InstrEmit_vor_(e, c, VX128_VD128, VX128_VA128, VX128_VB128);
}
// TODO(benvanik): implement this for real!
__m128i __emulated_vperm(__m128i va, __m128i vb, __m128i vc) {
__m128i result = _mm_setzero_si128();
// TODO(benvanik): implement this for real! this is in the memcpy path!
__m128i __emulated_vperm(uint8_t* va, uint8_t* vb, uint8_t* vc) {
XECACHEALIGN uint8_t result[16] = {0};
for (size_t i = 0; i < 16; i++) {
const size_t b = vc.m128i_u8[i] & 0x1F;
result.m128i_u8[i] = b < 16 ?
va.m128i_u8[15 - b] :
vb.m128i_u8[15 - (b - 16)];
#define SWAP_INLINE(x) (((x) & ~0x3) + (3 - ((x) % 4)))
size_t m = SWAP_INLINE(i);
size_t b = vc[m] & 0x1F;
result[m] = b < 16 ?
va[SWAP_INLINE(b)] :
vb[SWAP_INLINE(b - 16)];
}
return result;
return _mm_load_si128((__m128i*)result);
}
int InstrEmit_vperm_(X64Emitter& e, X86Compiler& c, uint32_t vd, uint32_t va, uint32_t vb, uint32_t vc) {
// Call emulation function.
XmmVar tva(c.newXmmVar()), tvb(c.newXmmVar()), tvc(c.newXmmVar());
GpVar pva(c.newGpVar()), pvb(c.newGpVar()), pvc(c.newGpVar());
c.lea(pva, e.vr_value(va).m128());
c.lea(pvb, e.vr_value(vb).m128());
c.lea(pvc, e.vr_value(vc).m128());
c.movaps(tva, e.vr_value(va));
c.movaps(tvb, e.vr_value(vb));
c.movaps(tvc, e.vr_value(vc));
c.save(tva);
c.save(tvb);
c.save(tvc);
c.lea(pva, tva.m128());
c.lea(pvb, tvb.m128());
c.lea(pvc, tvc.m128());
XmmVar v(c.newXmmVar());
X86CompilerFuncCall* call = c.call(__emulated_vperm);
uint32_t args[] = {kX86VarTypeGpq, kX86VarTypeGpq, kX86VarTypeGpq};