toaruos/libc/arch/x86_64/memset.c
2021-05-31 10:54:11 +09:00

11 lines
233 B
C

#include <stddef.h>
void * memset(void * dest, int c, size_t n) {
asm volatile("cld; rep stosb"
: "=c"((int){0})
: "rdi"(dest), "a"(c), "c"(n)
: "flags", "memory", "rdi");
return dest;
}