k.c

int swit(int num)
{
    switch (num) {
    case 0xA1:
    case 0xA2:
    case 0xA3:
    case 0xA4:
    case 0xB2:
    case 0xB3:
    case 0xB4:
    case 0xC5:
        return 0;
    default:
        return -1;
    }
}

/*
 * 0000000000000000 <swit>:
 *    0:	55                   	push   %rbp
 *    1:	48 89 e5             	mov    %rsp,%rbp
 *    4:	89 7d fc             	mov    %edi,-0x4(%rbp)
 *    7:	8b 45 fc             	mov    -0x4(%rbp),%eax
 *    a:	2d a1 00 00 00       	sub    $0xa1,%eax
 *    f:	83 f8 24             	cmp    $0x24,%eax
 *   12:	77 13                	ja     27 <swit+0x27>
 *   14:	89 c0                	mov    %eax,%eax
 *   16:	48 8b 04 c5 00 00 00 	mov    0x0(,%rax,8),%rax
 *   1d:	00 
 *   1e:	ff e0                	jmpq   *%rax
 *   20:	b8 00 00 00 00       	mov    $0x0,%eax
 *   25:	eb 05                	jmp    2c <swit+0x2c>
 *   27:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
 *   2c:	5d                   	pop    %rbp
 *   2d:	c3                   	retq   
 */