1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
|
|
* include/asm-s390/ebcdic.h
|
|
* EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
|
|
*
|
|
* S390 version
|
|
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
|
|
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
*/
|
|
|
|
#ifndef _EBCDIC_H
|
|
#define _EBCDIC_H
|
|
|
|
#ifndef _S390_TYPES_H
|
|
#include <types.h>
|
|
#endif
|
|
|
|
extern __u8 _ascebc_500[]; /* ASCII -> EBCDIC 500 conversion table */
|
|
extern __u8 _ebcasc_500[]; /* EBCDIC 500 -> ASCII conversion table */
|
|
extern __u8 _ascebc[]; /* ASCII -> EBCDIC conversion table */
|
|
extern __u8 _ebcasc[]; /* EBCDIC -> ASCII conversion table */
|
|
extern __u8 _ebc_tolower[]; /* EBCDIC -> lowercase */
|
|
extern __u8 _ebc_toupper[]; /* EBCDIC -> uppercase */
|
|
|
|
extern __inline__ void
|
|
codepage_convert(const __u8 *codepage, volatile __u8 * addr, unsigned long nr)
|
|
{
|
|
if (nr-- <= 0)
|
|
return;
|
|
__asm__ __volatile__(
|
|
" bras 1,1f\n"
|
|
" tr 0(1,%0),0(%2)\n"
|
|
"0: tr 0(256,%0),0(%2)\n"
|
|
" la %0,256(%0)\n"
|
|
"1: ahi %1,-256\n"
|
|
" jnm 0b\n"
|
|
" ex %1,0(1)"
|
|
: "+&a" (addr), "+&a" (nr)
|
|
: "a" (codepage) : "cc", "memory", "1" );
|
|
}
|
|
|
|
#define ASCEBC(addr,nr) codepage_convert(_ascebc, addr, nr)
|
|
#define EBCASC(addr,nr) codepage_convert(_ebcasc, addr, nr)
|
|
#define ASCEBC_500(addr,nr) codepage_convert(_ascebc_500, addr, nr)
|
|
#define EBCASC_500(addr,nr) codepage_convert(_ebcasc_500, addr, nr)
|
|
#define EBC_TOLOWER(addr,nr) codepage_convert(_ebc_tolower, addr, nr)
|
|
#define EBC_TOUPPER(addr,nr) codepage_convert(_ebc_toupper, addr, nr)
|
|
|
|
#endif
|
|
|