Source to libkern/ffs.c
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#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid = "@(#)ffs.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
* ffs -- vax ffs instruction
register int mask;
register int bit;
if (mask == 0)
for (bit = 1; !(mask & 1); bit++)
mask >>= 1;