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kolibrios/programs/develop/ktcc/libc.obj/source/string/strchr.c
Andrew 4f450aa637
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develop/ktcc: Post-SVN tidy
- Move source code from `trunk` into program root directory.
- Update build files and include paths.
- Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.
2025-05-24 11:58:48 +01:00

21 lines
473 B
C

#include "unconst.h"
#include <string.h>
char* strchr(const char* s, int c)
{
int d0;
register char* __res;
__asm__ __volatile__(
"movb %%al,%%ah\n"
"1:\tlodsb\n\t"
"cmpb %%ah,%%al\n\t"
"je 2f\n\t"
"testb %%al,%%al\n\t"
"jne 1b\n\t"
"movl $1,%1\n"
"2:\tmovl %1,%0\n\t"
"decl %0"
: "=a"(__res), "=&S"(d0)
: "1"((unsigned)s), "0"(c));
return __res;
}