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Untested emulated stvlx/stvrx.

This commit is contained in:
Ben Vanik 2013-10-06 11:22:35 -07:00
parent e5ca996a08
commit debf21437e
1 changed files with 57 additions and 4 deletions
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61
src/xenia/cpu/x64/x64_emit_altivec.cc
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@ -345,9 +345,35 @@ XEEMITTER(lvrxl128, VX128_1(4, 1603), VX128_1)(X64Emitter& e, X86Compiler&
return InstrEmit_lvrx128(e, c, i);
}
static void __emulated_stvlx(uint64_t addr, __m128i vd) {
// addr here is the fully translated address.
const uint8_t eb = addr & 0xF;
const size_t size = 16 - eb;
uint8_t* p = (uint8_t*)addr;
for (size_t i = 0; i < size; i++) {
p[i] = vd.m128i_u8[size - eb - 1 - i];
}
}
int InstrEmit_stvlx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, uint32_t ra, uint32_t rb) {
XEINSTRNOTIMPLEMENTED();
return 1;
GpVar ea(c.newGpVar());
c.mov(ea, e.gpr_value(rb));
if (ra) {
c.add(ea, e.gpr_value(ra));
}
ea = e.TouchMemoryAddress(i.address, ea);
XmmVar tvd(c.newXmmVar());
c.movaps(tvd, e.vr_value(vd));
c.shufps(tvd, tvd, imm(0x1B));
c.save(tvd);
GpVar pvd(c.newGpVar());
c.lea(pvd, tvd.m128());
X86CompilerFuncCall* call = c.call(__emulated_stvlx);
uint32_t args[] = {kX86VarTypeGpq, kX86VarTypeGpq};
call->setPrototype(kX86FuncConvDefault, kX86VarTypeGpq, args, XECOUNT(args));
call->setArgument(0, ea);
call->setArgument(1, pvd);
e.TraceVR(vd);
return 0;
}
XEEMITTER(stvlx, 0x7C00050E, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
return InstrEmit_stvlx_(e, c, i, i.X.RT, i.X.RA, i.X.RB);
@ -362,9 +388,36 @@ XEEMITTER(stvlxl128, VX128_1(4, 1795), VX128_1)(X64Emitter& e, X86Compiler&
return InstrEmit_stvlx128(e, c, i);
}
static void __emulated_stvrx(uint64_t addr, __m128i vd) {
// addr here is the fully translated address.
const uint8_t eb = addr & 0xF;
const size_t size = eb;
addr &= ~0xF;
uint8_t* p = (uint8_t*)addr;
for (size_t i = 0; i < size; i++) {
p[i + (size - 1 - i)] = vd.m128i_u8[i];
}
}
int InstrEmit_stvrx_(X64Emitter& e, X86Compiler& c, InstrData& i, uint32_t vd, uint32_t ra, uint32_t rb) {
XEINSTRNOTIMPLEMENTED();
return 1;
GpVar ea(c.newGpVar());
c.mov(ea, e.gpr_value(rb));
if (ra) {
c.add(ea, e.gpr_value(ra));
}
ea = e.TouchMemoryAddress(i.address, ea);
XmmVar tvd(c.newXmmVar());
c.movaps(tvd, e.vr_value(vd));
c.shufps(tvd, tvd, imm(0x1B));
c.save(tvd);
GpVar pvd(c.newGpVar());
c.lea(pvd, tvd.m128());
X86CompilerFuncCall* call = c.call(__emulated_stvrx);
uint32_t args[] = {kX86VarTypeGpq, kX86VarTypeGpq};
call->setPrototype(kX86FuncConvDefault, kX86VarTypeGpq, args, XECOUNT(args));
call->setArgument(0, ea);
call->setArgument(1, pvd);
e.TraceVR(vd);
return 0;
}
XEEMITTER(stvrx, 0x7C00054E, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
return InstrEmit_stvrx_(e, c, i, i.X.RT, i.X.RA, i.X.RB);