Files
kolibrios/programs/develop/ktcc/libc.obj/source/string/strncmp.c
T
ace-dentandBurer a4f3f3545a develop/ktcc: Post-SVN tidy (#425)
- Move source code from `trunk` into root directory.
- Update build files and ASM include paths. Add SPDX license header where appropriate.
- These changes also update the CI build files in `.gitea/workflows/`.
- Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.

(Work towards [#75](KolibriOS/kolibrios#75), point 3)

---------

Co-authored-by: Burer <burer@kolibrios.org>
Reviewed-on: KolibriOS/kolibrios#425
Reviewed-by: Mikhail Frolov <mixa.frolov2003@gmail.com>
Reviewed-by: Burer <burer@kolibrios.org>
Co-authored-by: Andrew <dent.ace@gmail.com>
Co-committed-by: Andrew <dent.ace@gmail.com>
2026-04-19 16:41:37 +00:00

25 lines
629 B
C

/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <string.h>
int strncmp(const char* s1, const char* s2, size_t n)
{
register int __res;
int d0, d1, d2;
__asm__ __volatile__(
"1:\tdecl %3\n\t"
"js 2f\n\t"
"lodsb\n\t"
"scasb\n\t"
"jne 3f\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n"
"2:\txorl %%eax,%%eax\n\t"
"jmp 4f\n"
"3:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
: "=a"(__res), "=&S"(d0), "=&D"(d1), "=&c"(d2)
: "1"(s1), "2"(s2), "3"(n));
return __res;
}