16_if1_b100w_bit_7.c

来自「linux下编程用 编译软件」· C语言 代码 · 共 32 行

/* { dg-options { -nostartfiles below100.o -Tbelow100.ld -O2 } } */
/* { dg-final { scan-assembler "b\[np\] B100A,#7," } } */
/* { dg-final { scan-assembler "b\[np\] B100B,#7," } } */

char acDummy[0xf0] __attribute__ ((__BELOW100__));
unsigned short B100A __attribute__ ((__BELOW100__));
unsigned short *pA = &B100A;
unsigned short B100B __attribute__ ((__BELOW100__));
unsigned short *pB = &B100B;

char *
Do (void)
{
  if (B100A & 0x0080)
    {
      if (B100B & 0x0080)
	return "Fail";
      else
	return "Success";
    }
  else
    return "Fail";
}

int
main (void)
{
  *pA = 0xedcb;
  *pB = 0x1234;
  return Do ()[0] == 'F';
}