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authorkaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk>2003-03-12 00:15:31 +0000
committerkaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk>2003-03-12 00:15:31 +0000
commitee53d3b8685245febda44ac761877871ec4cd0f4 (patch)
tree67e5392c3f16c0716b3ca8356cd93cd244b58d4b /xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h
parent7c2ffc6c5043e0a49fbe1b81f9da465ec68a9e64 (diff)
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bitkeeper revision 1.122.1.5 (3e6e7c23wQxW8Ugs0UKsqigrHkcXQg)
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Diffstat (limited to 'xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h')
-rw-r--r--xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h617
1 files changed, 0 insertions, 617 deletions
diff --git a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h
deleted file mode 100644
index 51bfd051bc..0000000000
--- a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/string-486.h
+++ /dev/null
@@ -1,617 +0,0 @@
-#ifndef _I386_STRING_I486_H_
-#define _I386_STRING_I486_H_
-
-/*
- * This string-include defines all string functions as inline
- * functions. Use gcc. It also assumes ds=es=data space, this should be
- * normal. Most of the string-functions are rather heavily hand-optimized,
- * see especially strtok,strstr,str[c]spn. They should work, but are not
- * very easy to understand. Everything is done entirely within the register
- * set, making the functions fast and clean.
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Revised and optimized for i486/pentium
- * 1994/03/15 by Alberto Vignani/Davide Parodi @crf.it
- *
- * Split into 2 CPU specific files by Alan Cox to keep #ifdef noise down.
- *
- * 1999/10/5 Proper register args for newer GCCs and minor bugs
- * fixed - Petko Manolov (petkan@spct.net)
- * 1999/10/14 3DNow memscpy() added - Petkan
- * 2000/05/09 extern changed to static in function definitions
- * and a few cleanups - Petkan
- */
-
-#define __HAVE_ARCH_STRCPY
-static inline char * strcpy(char * dest,const char *src)
-{
-register char *tmp= (char *)dest;
-register char dummy;
-__asm__ __volatile__(
- "\n1:\t"
- "movb (%0),%2\n\t"
- "incl %0\n\t"
- "movb %2,(%1)\n\t"
- "incl %1\n\t"
- "testb %2,%2\n\t"
- "jne 1b"
- :"=r" (src), "=r" (tmp), "=q" (dummy)
- :"0" (src), "1" (tmp)
- :"memory");
-return dest;
-}
-
-#define __HAVE_ARCH_STRNCPY
-static inline char * strncpy(char * dest,const char *src,size_t count)
-{
-register char *tmp= (char *)dest;
-register char dummy;
-if (count) {
-__asm__ __volatile__(
- "\n1:\t"
- "movb (%0),%2\n\t"
- "incl %0\n\t"
- "movb %2,(%1)\n\t"
- "incl %1\n\t"
- "decl %3\n\t"
- "je 3f\n\t"
- "testb %2,%2\n\t"
- "jne 1b\n\t"
- "2:\tmovb %2,(%1)\n\t"
- "incl %1\n\t"
- "decl %3\n\t"
- "jne 2b\n\t"
- "3:"
- :"=r" (src), "=r" (tmp), "=q" (dummy), "=r" (count)
- :"0" (src), "1" (tmp), "3" (count)
- :"memory");
- } /* if (count) */
-return dest;
-}
-
-#define __HAVE_ARCH_STRCAT
-static inline char * strcat(char * dest,const char * src)
-{
-register char *tmp = (char *)(dest-1);
-register char dummy;
-__asm__ __volatile__(
- "\n1:\tincl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "jne 1b\n"
- "2:\tmovb (%2),%b0\n\t"
- "incl %2\n\t"
- "movb %b0,(%1)\n\t"
- "incl %1\n\t"
- "testb %b0,%b0\n\t"
- "jne 2b\n"
- :"=q" (dummy), "=r" (tmp), "=r" (src)
- :"1" (tmp), "2" (src)
- :"memory");
-return dest;
-}
-
-#define __HAVE_ARCH_STRNCAT
-static inline char * strncat(char * dest,const char * src,size_t count)
-{
-register char *tmp = (char *)(dest-1);
-register char dummy;
-__asm__ __volatile__(
- "\n1:\tincl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "jne 1b\n"
- "2:\tdecl %3\n\t"
- "js 3f\n\t"
- "movb (%2),%b0\n\t"
- "incl %2\n\t"
- "movb %b0,(%1)\n\t"
- "incl %1\n\t"
- "testb %b0,%b0\n\t"
- "jne 2b\n"
- "3:\txorb %0,%0\n\t"
- "movb %b0,(%1)\n\t"
- :"=q" (dummy), "=r" (tmp), "=r" (src), "=r" (count)
- :"1" (tmp), "2" (src), "3" (count)
- :"memory");
-return dest;
-}
-
-#define __HAVE_ARCH_STRCMP
-static inline int strcmp(const char * cs,const char * ct)
-{
-register int __res;
-__asm__ __volatile__(
- "\n1:\tmovb (%1),%b0\n\t"
- "incl %1\n\t"
- "cmpb %b0,(%2)\n\t"
- "jne 2f\n\t"
- "incl %2\n\t"
- "testb %b0,%b0\n\t"
- "jne 1b\n\t"
- "xorl %0,%0\n\t"
- "jmp 3f\n"
- "2:\tmovl $1,%0\n\t"
- "jb 3f\n\t"
- "negl %0\n"
- "3:"
- :"=q" (__res), "=r" (cs), "=r" (ct)
- :"1" (cs), "2" (ct)
- : "memory" );
-return __res;
-}
-
-#define __HAVE_ARCH_STRNCMP
-static inline int strncmp(const char * cs,const char * ct,size_t count)
-{
-register int __res;
-__asm__ __volatile__(
- "\n1:\tdecl %3\n\t"
- "js 2f\n\t"
- "movb (%1),%b0\n\t"
- "incl %1\n\t"
- "cmpb %b0,(%2)\n\t"
- "jne 3f\n\t"
- "incl %2\n\t"
- "testb %b0,%b0\n\t"
- "jne 1b\n"
- "2:\txorl %0,%0\n\t"
- "jmp 4f\n"
- "3:\tmovl $1,%0\n\t"
- "jb 4f\n\t"
- "negl %0\n"
- "4:"
- :"=q" (__res), "=r" (cs), "=r" (ct), "=r" (count)
- :"1" (cs), "2" (ct), "3" (count));
-return __res;
-}
-
-#define __HAVE_ARCH_STRCHR
-static inline char * strchr(const char * s, int c)
-{
-register char * __res;
-__asm__ __volatile__(
- "movb %%al,%%ah\n"
- "1:\tmovb (%1),%%al\n\t"
- "cmpb %%ah,%%al\n\t"
- "je 2f\n\t"
- "incl %1\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "xorl %1,%1\n"
- "2:\tmovl %1,%0\n\t"
- :"=a" (__res), "=r" (s)
- :"0" (c), "1" (s));
-return __res;
-}
-
-#define __HAVE_ARCH_STRRCHR
-static inline char * strrchr(const char * s, int c)
-{
-int d0, d1;
-register char * __res;
-__asm__ __volatile__(
- "movb %%al,%%ah\n"
- "1:\tlodsb\n\t"
- "cmpb %%ah,%%al\n\t"
- "jne 2f\n\t"
- "leal -1(%%esi),%0\n"
- "2:\ttestb %%al,%%al\n\t"
- "jne 1b"
- :"=d" (__res), "=&S" (d0), "=&a" (d1)
- :"0" (0), "1" (s), "2" (c));
-return __res;
-}
-
-
-#define __HAVE_ARCH_STRCSPN
-static inline size_t strcspn(const char * cs, const char * ct)
-{
-int d0, d1;
-register char * __res;
-__asm__ __volatile__(
- "movl %6,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %6,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 1b\n"
- "2:\tdecl %0"
- :"=S" (__res), "=&a" (d0), "=&c" (d1)
- :"0" (cs), "1" (0), "2" (0xffffffff), "g" (ct)
- :"dx", "di");
-return __res-cs;
-}
-
-
-#define __HAVE_ARCH_STRLEN
-static inline size_t strlen(const char * s)
-{
-/*
- * slightly slower on a 486, but with better chances of
- * register allocation
- */
-register char dummy, *tmp= (char *)s;
-__asm__ __volatile__(
- "\n1:\t"
- "movb\t(%0),%1\n\t"
- "incl\t%0\n\t"
- "testb\t%1,%1\n\t"
- "jne\t1b"
- :"=r" (tmp),"=q" (dummy)
- :"0" (s)
- : "memory" );
-return (tmp-s-1);
-}
-
-/* Added by Gertjan van Wingerde to make minix and sysv module work */
-#define __HAVE_ARCH_STRNLEN
-static inline size_t strnlen(const char * s, size_t count)
-{
-int d0;
-register int __res;
-__asm__ __volatile__(
- "movl %3,%0\n\t"
- "jmp 2f\n"
- "1:\tcmpb $0,(%0)\n\t"
- "je 3f\n\t"
- "incl %0\n"
- "2:\tdecl %2\n\t"
- "cmpl $-1,%2\n\t"
- "jne 1b\n"
- "3:\tsubl %3,%0"
- :"=a" (__res), "=&d" (d0)
- :"1" (count), "c" (s));
-return __res;
-}
-/* end of additional stuff */
-
-
-/*
- * These ought to get tweaked to do some cache priming.
- */
-
-static inline void * __memcpy_by4(void * to, const void * from, size_t n)
-{
-register void *tmp = (void *)to;
-register int dummy1,dummy2;
-__asm__ __volatile__ (
- "\n1:\tmovl (%2),%0\n\t"
- "addl $4,%2\n\t"
- "movl %0,(%1)\n\t"
- "addl $4,%1\n\t"
- "decl %3\n\t"
- "jnz 1b"
- :"=r" (dummy1), "=r" (tmp), "=r" (from), "=r" (dummy2)
- :"1" (tmp), "2" (from), "3" (n/4)
- :"memory");
-return (to);
-}
-
-static inline void * __memcpy_by2(void * to, const void * from, size_t n)
-{
-register void *tmp = (void *)to;
-register int dummy1,dummy2;
-__asm__ __volatile__ (
- "shrl $1,%3\n\t"
- "jz 2f\n" /* only a word */
- "1:\tmovl (%2),%0\n\t"
- "addl $4,%2\n\t"
- "movl %0,(%1)\n\t"
- "addl $4,%1\n\t"
- "decl %3\n\t"
- "jnz 1b\n"
- "2:\tmovw (%2),%w0\n\t"
- "movw %w0,(%1)"
- :"=r" (dummy1), "=r" (tmp), "=r" (from), "=r" (dummy2)
- :"1" (tmp), "2" (from), "3" (n/2)
- :"memory");
-return (to);
-}
-
-static inline void * __memcpy_g(void * to, const void * from, size_t n)
-{
-int d0, d1, d2;
-register void *tmp = (void *)to;
-__asm__ __volatile__ (
- "shrl $1,%%ecx\n\t"
- "jnc 1f\n\t"
- "movsb\n"
- "1:\tshrl $1,%%ecx\n\t"
- "jnc 2f\n\t"
- "movsw\n"
- "2:\trep\n\t"
- "movsl"
- :"=&c" (d0), "=&D" (d1), "=&S" (d2)
- :"0" (n), "1" ((long) tmp), "2" ((long) from)
- :"memory");
-return (to);
-}
-
-#define __memcpy_c(d,s,count) \
-((count%4==0) ? \
- __memcpy_by4((d),(s),(count)) : \
- ((count%2==0) ? \
- __memcpy_by2((d),(s),(count)) : \
- __memcpy_g((d),(s),(count))))
-
-#define __memcpy(d,s,count) \
-(__builtin_constant_p(count) ? \
- __memcpy_c((d),(s),(count)) : \
- __memcpy_g((d),(s),(count)))
-
-#define __HAVE_ARCH_MEMCPY
-
-#include <linux/config.h>
-
-#ifdef CONFIG_X86_USE_3DNOW
-
-#include <asm/mmx.h>
-
-/*
-** This CPU favours 3DNow strongly (eg AMD K6-II, K6-III, Athlon)
-*/
-
-static inline void * __constant_memcpy3d(void * to, const void * from, size_t len)
-{
- if (len < 512)
- return __memcpy_c(to, from, len);
- return _mmx_memcpy(to, from, len);
-}
-
-static inline void *__memcpy3d(void *to, const void *from, size_t len)
-{
- if(len < 512)
- return __memcpy_g(to, from, len);
- return _mmx_memcpy(to, from, len);
-}
-
-#define memcpy(d, s, count) \
-(__builtin_constant_p(count) ? \
- __constant_memcpy3d((d),(s),(count)) : \
- __memcpy3d((d),(s),(count)))
-
-#else /* CONFIG_X86_USE_3DNOW */
-
-/*
-** Generic routines
-*/
-
-
-#define memcpy(d, s, count) __memcpy(d, s, count)
-
-#endif /* CONFIG_X86_USE_3DNOW */
-
-
-extern void __struct_cpy_bug( void );
-
-#define struct_cpy(x,y) \
-({ \
- if (sizeof(*(x)) != sizeof(*(y))) \
- __struct_cpy_bug; \
- memcpy(x, y, sizeof(*(x))); \
-})
-
-
-#define __HAVE_ARCH_MEMMOVE
-static inline void * memmove(void * dest,const void * src, size_t n)
-{
-int d0, d1, d2;
-register void *tmp = (void *)dest;
-if (dest<src)
-__asm__ __volatile__ (
- "rep\n\t"
- "movsb"
- :"=&c" (d0), "=&S" (d1), "=&D" (d2)
- :"0" (n), "1" (src), "2" (tmp)
- :"memory");
-else
-__asm__ __volatile__ (
- "std\n\t"
- "rep\n\t"
- "movsb\n\t"
- "cld"
- :"=&c" (d0), "=&S" (d1), "=&D" (d2)
- :"0" (n), "1" (n-1+(const char *)src), "2" (n-1+(char *)tmp)
- :"memory");
-return dest;
-}
-
-
-#define __HAVE_ARCH_MEMCMP
-static inline int memcmp(const void * cs,const void * ct,size_t count)
-{
-int d0, d1, d2;
-register int __res;
-__asm__ __volatile__(
- "repe\n\t"
- "cmpsb\n\t"
- "je 1f\n\t"
- "sbbl %0,%0\n\t"
- "orb $1,%b0\n"
- "1:"
- :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
- :"0" (0), "1" (cs), "2" (ct), "3" (count));
-return __res;
-}
-
-
-#define __HAVE_ARCH_MEMCHR
-static inline void * memchr(const void * cs,int c,size_t count)
-{
-int d0;
-register void * __res;
-if (!count)
- return NULL;
-__asm__ __volatile__(
- "repne\n\t"
- "scasb\n\t"
- "je 1f\n\t"
- "movl $1,%0\n"
- "1:\tdecl %0"
- :"=D" (__res), "=&c" (d0)
- :"a" (c), "0" (cs), "1" (count));
-return __res;
-}
-
-#define __memset_cc(s,c,count) \
-((count%4==0) ? \
- __memset_cc_by4((s),(c),(count)) : \
- ((count%2==0) ? \
- __memset_cc_by2((s),(c),(count)) : \
- __memset_cg((s),(c),(count))))
-
-#define __memset_gc(s,c,count) \
-((count%4==0) ? \
- __memset_gc_by4((s),(c),(count)) : \
- ((count%2==0) ? \
- __memset_gc_by2((s),(c),(count)) : \
- __memset_gg((s),(c),(count))))
-
-#define __HAVE_ARCH_MEMSET
-#define memset(s,c,count) \
-(__builtin_constant_p(c) ? \
- (__builtin_constant_p(count) ? \
- __memset_cc((s),(c),(count)) : \
- __memset_cg((s),(c),(count))) : \
- (__builtin_constant_p(count) ? \
- __memset_gc((s),(c),(count)) : \
- __memset_gg((s),(c),(count))))
-
-static inline void * __memset_cc_by4(void * s, char c, size_t count)
-{
-/*
- * register char *tmp = s;
- */
-register char *tmp = (char *)s;
-register int dummy;
-__asm__ __volatile__ (
- "\n1:\tmovl %2,(%0)\n\t"
- "addl $4,%0\n\t"
- "decl %1\n\t"
- "jnz 1b"
- :"=r" (tmp), "=r" (dummy)
- :"q" (0x01010101UL * (unsigned char) c), "0" (tmp), "1" (count/4)
- :"memory");
-return s;
-}
-
-static inline void * __memset_cc_by2(void * s, char c, size_t count)
-{
-register void *tmp = (void *)s;
-register int dummy;
-__asm__ __volatile__ (
- "shrl $1,%1\n\t" /* may be divisible also by 4 */
- "jz 2f\n"
- "\n1:\tmovl %2,(%0)\n\t"
- "addl $4,%0\n\t"
- "decl %1\n\t"
- "jnz 1b\n"
- "2:\tmovw %w2,(%0)"
- :"=r" (tmp), "=r" (dummy)
- :"q" (0x01010101UL * (unsigned char) c), "0" (tmp), "1" (count/2)
- :"memory");
-return s;
-}
-
-static inline void * __memset_gc_by4(void * s, char c, size_t count)
-{
-register void *tmp = (void *)s;
-register int dummy;
-__asm__ __volatile__ (
- "movb %b0,%h0\n"
- "pushw %w0\n\t"
- "shll $16,%0\n\t"
- "popw %w0\n"
- "1:\tmovl %0,(%1)\n\t"
- "addl $4,%1\n\t"
- "decl %2\n\t"
- "jnz 1b\n"
- :"=q" (c), "=r" (tmp), "=r" (dummy)
- :"0" ((unsigned) c), "1" (tmp), "2" (count/4)
- :"memory");
-return s;
-}
-
-static inline void * __memset_gc_by2(void * s, char c, size_t count)
-{
-register void *tmp = (void *)s;
-register int dummy1,dummy2;
-__asm__ __volatile__ (
- "movb %b0,%h0\n\t"
- "shrl $1,%2\n\t" /* may be divisible also by 4 */
- "jz 2f\n\t"
- "pushw %w0\n\t"
- "shll $16,%0\n\t"
- "popw %w0\n"
- "1:\tmovl %0,(%1)\n\t"
- "addl $4,%1\n\t"
- "decl %2\n\t"
- "jnz 1b\n"
- "2:\tmovw %w0,(%1)"
- :"=q" (dummy1), "=r" (tmp), "=r" (dummy2)
- :"0" ((unsigned) c), "1" (tmp), "2" (count/2)
- :"memory");
-return s;
-}
-
-static inline void * __memset_cg(void * s, char c, size_t count)
-{
-int d0, d1;
-register void *tmp = (void *)s;
-__asm__ __volatile__ (
- "shrl $1,%%ecx\n\t"
- "rep\n\t"
- "stosw\n\t"
- "jnc 1f\n\t"
- "movb %%al,(%%edi)\n"
- "1:"
- :"=&c" (d0), "=&D" (d1)
- :"a" (0x0101U * (unsigned char) c), "0" (count), "1" (tmp)
- :"memory");
-return s;
-}
-
-static inline void * __memset_gg(void * s,char c,size_t count)
-{
-int d0, d1, d2;
-register void *tmp = (void *)s;
-__asm__ __volatile__ (
- "movb %%al,%%ah\n\t"
- "shrl $1,%%ecx\n\t"
- "rep\n\t"
- "stosw\n\t"
- "jnc 1f\n\t"
- "movb %%al,(%%edi)\n"
- "1:"
- :"=&c" (d0), "=&D" (d1), "=&D" (d2)
- :"0" (count), "1" (tmp), "2" (c)
- :"memory");
-return s;
-}
-
-
-/*
- * find the first occurrence of byte 'c', or 1 past the area if none
- */
-#define __HAVE_ARCH_MEMSCAN
-static inline void * memscan(void * addr, int c, size_t size)
-{
- if (!size)
- return addr;
- __asm__("repnz; scasb
- jnz 1f
- dec %%edi
-1: "
- : "=D" (addr), "=c" (size)
- : "0" (addr), "1" (size), "a" (c));
- return addr;
-}
-
-#endif