Release 4.14 arch/s390/include/asm/ebcdic.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *    EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
 *
 *  S390 version
 *    Copyright IBM Corp. 1999
 *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
 */

#ifndef _EBCDIC_H

#define _EBCDIC_H

#include <linux/types.h>

extern __u8 _ascebc_500[256];   /* ASCII -> EBCDIC 500 conversion table */
extern __u8 _ebcasc_500[256];   /* EBCDIC 500 -> ASCII conversion table */
extern __u8 _ascebc[256];   /* ASCII -> EBCDIC conversion table */
extern __u8 _ebcasc[256];   /* EBCDIC -> ASCII conversion table */
extern __u8 _ebc_tolower[256]; /* EBCDIC -> lowercase */
extern __u8 _ebc_toupper[256]; /* EBCDIC -> uppercase */


static 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");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
17
53.12%
1
16.67%
Linus Torvalds
7
21.88%
1
16.67%
Martin Schwidefsky
6
18.75%
3
50.00%
Adrian Bunk
2
6.25%
1
16.67%
Total
32
100.00%
6
100.00%


#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

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
83
56.46%
1
9.09%
Linus Torvalds
35
23.81%
2
18.18%
Peter Oberparleiter
18
12.24%
1
9.09%
Martin Schwidefsky
6
4.08%
3
27.27%
Adrian Bunk
2
1.36%
1
9.09%
Heiko Carstens
2
1.36%
2
18.18%
Greg Kroah-Hartman
1
0.68%
1
9.09%
Total
147
100.00%
11
100.00%
Directory: arch/s390/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.