C++ (Cpp) SET_FLAGS_OSZAPC_RESULT_16 예제들

예제 #1

파일: bit.cpp 프로젝트: ralvaradoc/libsf

void BX_CPU_C::BSR_GwEw(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16;

  /* op2_16 is a register or memory reference */
  if (i->modC0()) {
    op2_16 = BX_READ_16BIT_REG(i->rm());
  }
  else {
    /* pointer, segment address pair */
    read_virtual_word(i->seg(), RMAddr(i), &op2_16);
  }

  if (op2_16 == 0) {
    assert_ZF(); /* op1_16 undefined */
    return;
  }

  op1_16 = 15;
  while ( (op2_16 & 0x8000) == 0 ) {
    op1_16--;
    op2_16 <<= 1;
  }

  SET_FLAGS_OSZAPC_RESULT_16(op1_16, BX_INSTR_BITSCAN16);

  /* now write result back to destination */
  BX_WRITE_16BIT_REG(i->nnn(), op1_16);
}

예제 #2

파일: arith16.cpp 프로젝트: hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::NEG_EwR(bxInstruction_c *i)
{
  Bit16u op1_16 = BX_READ_16BIT_REG(i->rm());
  op1_16 = - (Bit16s)(op1_16);
  BX_WRITE_16BIT_REG(i->rm(), op1_16);

  SET_FLAGS_OSZAPC_RESULT_16(op1_16, BX_LF_INSTR_NEG16);
}

예제 #3

파일: arith16.cpp 프로젝트: hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::NEG_EwM(bxInstruction_c *i)
{
  Bit16u op1_16;

  BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

  op1_16 = read_RMW_virtual_word(i->seg(), RMAddr(i));
  op1_16 = - (Bit16s)(op1_16);
  write_RMW_virtual_word(op1_16);

  SET_FLAGS_OSZAPC_RESULT_16(op1_16, BX_LF_INSTR_NEG16);
}