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author | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
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committer | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
commit | a6c1ed4716cf02626ea035beb6dd4a921642ba80 (patch) | |
tree | ef582c1b52819e27bdd16097ec03b69799d04ede /newlib/libc/machine/i386/strchr.S | |
parent | f6c9a624fa8a6878a7fb2b02f55e4990a20feb59 (diff) |
Use libc from agbcc instead of standalone newlib\nYou must have AGBCC commit 80d029caec189587f8b9294b6c8a5a489b8f5f88 in order to compile pmd_red.gbalibc
Diffstat (limited to 'newlib/libc/machine/i386/strchr.S')
-rw-r--r-- | newlib/libc/machine/i386/strchr.S | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/newlib/libc/machine/i386/strchr.S b/newlib/libc/machine/i386/strchr.S deleted file mode 100644 index 179c4a2..0000000 --- a/newlib/libc/machine/i386/strchr.S +++ /dev/null @@ -1,84 +0,0 @@ -/* - * ==================================================== - * Copyright (C) 1998 by Cygnus Solutions. All rights reserved. - * - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - - #include "i386mach.h" - - .global SYM (strchr) - -SYM (strchr): - - pushl ebp - movl esp,ebp - pushl edi - pushl ebx - xorl ebx,ebx - movl 8(ebp),edi - movb 12(ebp),bl - -#ifndef __OPTIMIZE_SIZE__ -/* check if string is aligned, if not do check one byte at a time */ - testb $3,al - jne L9 - -/* create 4 byte mask which is just the desired byte repeated 4 times */ - movl ebx,ecx - sall $8,ebx - subl $4,edi - orl ecx,ebx - movl ebx,edx - sall $16,ebx - orl edx,ebx - -/* loop performing 4 byte mask checking for 0 byte or desired byte */ - .p2align 4,,7 -L10: - addl $4,edi - movl (edi),ecx - leal -16843009(ecx),edx - movl ecx,eax - notl eax - andl eax,edx - testl $-2139062144,edx - jne L9 - - movl ebx,eax - xorl ecx,eax - leal -16843009(eax),edx - notl eax - andl eax,edx - testl $-2139062144,edx - je L10 -#endif /* not __OPTIMIZE_SIZE__ */ - -/* loop while (*s && *s++ != c) */ -L9: - leal -1(edi),eax - .p2align 4,,7 -L15: - incl eax - movb (eax),dl - testb dl,dl - je L14 - cmpb bl,dl - jne L15 - -L14: -/* if (*s == c) return address otherwise return NULL */ - cmpb bl,(eax) - je L19 - xorl eax,eax - -L19: - leal -8(ebp),esp - popl ebx - popl edi - leave - ret - |