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import winsup-2000-02-17 snapshot

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This commit is contained in:
Christopher Faylor
2000-02-17 19:38:33 +00:00
parent 369d8a8fd5
commit 1fd5e000ac
582 changed files with 146593 additions and 0 deletions
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93
winsup/cygwin/include/asm/byteorder.h Normal file
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#ifndef _I386_BYTEORDER_H
#define _I386_BYTEORDER_H
#ifdef __cplusplus
extern "C" {
#endif
#if 0
#undef ntohl
#undef ntohs
#undef htonl
#undef htons
#endif
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN 1234
#endif
#ifndef __LITTLE_ENDIAN_BITFIELD
#define __LITTLE_ENDIAN_BITFIELD
#endif
#if 1
extern unsigned long int ntohl(unsigned long int);
extern unsigned short int ntohs(unsigned short int);
extern unsigned long int htonl(unsigned long int);
extern unsigned short int htons(unsigned short int);
extern __inline__ unsigned long int __ntohl(unsigned long int);
extern __inline__ unsigned short int __ntohs(unsigned short int);
extern __inline__ unsigned long int __constant_ntohl(unsigned long int);
extern __inline__ unsigned short int __constant_ntohs(unsigned short int);
extern __inline__ unsigned long int
__ntohl(unsigned long int x)
{
__asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
"rorl $16,%0\n\t" /* swap words */
"xchgb %b0,%h0" /* swap higher bytes */
:"=q" (x)
: "0" (x));
return x;
}
#define __constant_ntohl(x) \
((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \
(((unsigned long int)(x) & 0x0000ff00U) << 8) | \
(((unsigned long int)(x) & 0x00ff0000U) >> 8) | \
(((unsigned long int)(x) & 0xff000000U) >> 24)))
extern __inline__ unsigned short int
__ntohs(unsigned short int x)
{
__asm__("xchgb %b0,%h0" /* swap bytes */
: "=q" (x)
: "0" (x));
return x;
}
#define __constant_ntohs(x) \
((unsigned short int)((((unsigned short int)(x) & 0x00ff) << 8) | \
(((unsigned short int)(x) & 0xff00) >> 8))) \
#define __htonl(x) __ntohl(x)
#define __htons(x) __ntohs(x)
#define __constant_htonl(x) __constant_ntohl(x)
#define __constant_htons(x) __constant_ntohs(x)
#ifdef __OPTIMIZE__
# define ntohl(x) \
(__builtin_constant_p((long)(x)) ? \
__constant_ntohl((x)) : \
__ntohl((x)))
# define ntohs(x) \
(__builtin_constant_p((short)(x)) ? \
__constant_ntohs((x)) : \
__ntohs((x)))
# define htonl(x) \
(__builtin_constant_p((long)(x)) ? \
__constant_htonl((x)) : \
__htonl((x)))
# define htons(x) \
(__builtin_constant_p((short)(x)) ? \
__constant_htons((x)) : \
__htons((x)))
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif