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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [libiberty/] [ffs.c] - Rev 244
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/* ffs -- Find the first bit set in the parameter @deftypefn Supplemental int ffs (int @var{valu}) Find the first (least significant) bit set in @var{valu}. Bits are numbered from right to left, starting with bit 1 (corresponding to the value 1). If @var{valu} is zero, zero is returned. @end deftypefn */ int ffs (register int valu) { register int bit; if (valu == 0) return 0; for (bit = 1; !(valu & 1); bit++) valu >>= 1; return bit; }
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