static void emitDump(asmjit::X86Assembler& a) {
a.push(asmjit::x86::r10);
a.push(asmjit::x86::r11);
a.mov(asmjit::x86::dil, REG_A);
a.mov(asmjit::x86::sil, REG_X);
a.mov(asmjit::x86::dl, REG_Y);
a.mov(asmjit::x86::cl, REG_S);
a.call((uint64_t)&dump);
a.pop(asmjit::x86::r11);
a.pop(asmjit::x86::r10);
}
bool BITZeroP::exp(asmjit::X86Assembler& a, MemoryMapper& m) {
m.emitLoad(a, operand, asmjit::x86::al);
// @COMPLETENESS: We should check and set the S_ flags here before the and
a.push(asmjit::x86::rax);
a.and_(asmjit::x86::al, REG_A);
auto Zero = a.newLabel();
auto Exit = a.newLabel();
a.jz(Zero);
//Not zero
a.btr(REG_S, S_ZERO);
a.jmp(Exit);
a.bind(Zero);
a.bts(REG_S, S_ZERO);
a.bind(Exit);
a.pop(asmjit::x86::rax);
{
a.btr(REG_S, S_OVERFLOW);
a.bt(asmjit::x86::al, 6);
auto End = a.newLabel();
a.jnc(End);
a.bts(REG_S, S_OVERFLOW);
a.bind(End);
}
{
a.btr(REG_S, S_NEGATIVE);
a.bt(asmjit::x86::al, 7);
auto End = a.newLabel();
a.jnc(End);
a.bts(REG_S, S_NEGATIVE);
a.bind(End);
}
return true;
}