| #ifndef _S390_BYTEORDER_H |
| #define _S390_BYTEORDER_H |
| |
| /* |
| * include/asm-s390/byteorder.h |
| * |
| * S390 version |
| * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) |
| */ |
| |
| #include <asm/types.h> |
| |
| #ifdef __GNUC__ |
| |
| static __inline__ __const__ __u32 ___arch__swab32(__u32 x) |
| { |
| __u32 temp; |
| |
| __asm__ __volatile__ ( |
| " st %0,0(%1)\n" |
| " icm %0,8,3(%1)\n" |
| " icm %0,4,2(%1)\n" |
| " icm %0,2,1(%1)\n" |
| " ic %0,0(%1)" |
| : "+&d" (x) : "a" (&temp) : "cc" ); |
| return x; |
| } |
| |
| static __inline__ __const__ __u32 ___arch__swab32p(__u32 *x) |
| { |
| __u32 result; |
| |
| __asm__ __volatile__ ( |
| " icm %0,8,3(%1)\n" |
| " icm %0,4,2(%1)\n" |
| " icm %0,2,1(%1)\n" |
| " ic %0,0(%1)" |
| : "=&d" (result) : "a" (x) : "cc" ); |
| return result; |
| } |
| |
| static __inline__ void ___arch__swab32s(__u32 *x) |
| { |
| __asm__ __volatile__ ( |
| " icm 0,8,3(%0)\n" |
| " icm 0,4,2(%0)\n" |
| " icm 0,2,1(%0)\n" |
| " ic 0,0(%0)\n" |
| " st 0,0(%0)" |
| : : "a" (x) : "0", "memory", "cc"); |
| } |
| |
| static __inline__ __const__ __u16 ___arch__swab16(__u16 x) |
| { |
| __u16 temp; |
| |
| __asm__ __volatile__ ( |
| " sth %0,0(%1)\n" |
| " icm %0,2,1(%1)\n" |
| " ic %0,0(%1)\n" |
| : "+&d" (x) : "a" (&temp) : "memory", "cc" ); |
| return x; |
| } |
| |
| static __inline__ __const__ __u16 ___arch__swab16p(__u16 *x) |
| { |
| __u16 result; |
| |
| __asm__ __volatile__ ( |
| " sr %0,%0\n" |
| " icm %0,2,1(%1)\n" |
| " ic %0,0(%1)\n" |
| : "=&d" (result) : "a" (x) : "cc" ); |
| return result; |
| } |
| |
| static __inline__ void ___arch__swab16s(__u16 *x) |
| { |
| __asm__ __volatile__( |
| " icm 0,2,1(%0)\n" |
| " ic 0,0(%0)\n" |
| " sth 0,0(%0)" |
| : : "a" (x) : "0", "memory", "cc" ); |
| } |
| |
| #define __arch__swab32(x) ___arch__swab32(x) |
| #define __arch__swab16(x) ___arch__swab16(x) |
| #define __arch__swab32p(x) ___arch__swab32p(x) |
| #define __arch__swab16p(x) ___arch__swab16p(x) |
| #define __arch__swab32s(x) ___arch__swab32s(x) |
| #define __arch__swab16s(x) ___arch__swab16s(x) |
| |
| #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) |
| # define __BYTEORDER_HAS_U64__ |
| # define __SWAB_64_THRU_32__ |
| #endif |
| |
| #endif /* __GNUC__ */ |
| |
| #include <linux/byteorder/big_endian.h> |
| |
| #endif /* _S390_BYTEORDER_H */ |