C++ (Cpp) PPCEmuAssembler::allocGpTmp Examples

Example #1

File: jit_float.cpp Project: achurch/decaf-emu

static void
absXmmSd(PPCEmuAssembler& a,
         const PPCEmuAssembler::XmmRegister& reg)
{
   auto maskGp = a.allocGpTmp();
   auto maskXmm = a.allocXmmTmp();
   a.mov(maskGp, UINT64_C(0x7FFFFFFFFFFFFFFF));
   a.movq(maskXmm, maskGp);
   a.pand(reg, maskXmm);
}

Example #2

File: jit_float.cpp Project: achurch/decaf-emu

static void
negateXmmSd(PPCEmuAssembler& a,
            const PPCEmuAssembler::XmmRegister& reg)
{
   auto maskGp = a.allocGpTmp();
   auto maskXmm = a.allocXmmTmp();
   a.mov(maskGp, UINT64_C(0x8000000000000000));
   a.movq(maskXmm, maskGp);
   a.pxor(reg, maskXmm);
}

Example #3

File: jit_float.cpp Project: achurch/decaf-emu

void
truncateToSingleSd(PPCEmuAssembler& a,
                   const PPCEmuAssembler::XmmRegister& dst,
                   const PPCEmuAssembler::XmmRegister& src)
{
   auto maskGp = a.allocGpTmp();
   a.mov(maskGp, UINT64_C(0xFFFFFFFFE0000000));
   if (&dst == &src) {
      auto tmp = a.allocXmmTmp();
      a.movq(tmp, maskGp);
      a.pand(dst, tmp);
   } else {
      a.movq(dst, maskGp);
      a.pand(dst, src);
   }
}

Example #4

File: jit_float.cpp Project: achurch/decaf-emu

static void
roundTo24BitSd(PPCEmuAssembler& a,
               const PPCEmuAssembler::XmmRegister& reg)
{
   auto maskGp = a.allocGpTmp();
   auto maskXmm = a.allocXmmTmp();
   auto tmp = a.allocXmmTmp();
   a.movq(tmp, reg);

   a.mov(maskGp, UINT64_C(0x8000000));
   a.movq(maskXmm, maskGp);
   a.pand(tmp, maskXmm);

   a.mov(maskGp, UINT64_C(0xFFFFFFFFF8000000));
   a.movq(maskXmm, maskGp);
   a.pand(reg, maskXmm);

   a.paddq(reg, tmp);
}

Example #5

File: jit_system.cpp Project: achurch/decaf-emu

// Data Cache Block Zero
static bool
dcbz(PPCEmuAssembler& a, Instruction instr)
{
   auto src = a.allocGpTmp().r32();

   if (instr.rA == 0) {
      a.mov(src, 0);
   } else {
      a.mov(src, a.loadRegisterRead(a.gpr[instr.rA]));
   }

   a.add(src, a.loadRegisterRead(a.gpr[instr.rB]));

   // Align down
   a.and_(src, ~static_cast<uint32_t>(31));

   // Write 32 bytes of zero's there
   a.mov(asmjit::X86Mem(a.membaseReg, src, 0, 0, 8), 0);
   a.mov(asmjit::X86Mem(a.membaseReg, src, 0, 8, 8), 0);
   a.mov(asmjit::X86Mem(a.membaseReg, src, 0, 16, 8), 0);
   a.mov(asmjit::X86Mem(a.membaseReg, src, 0, 24, 8), 0);

   return true;
}