value_bits
uint64_t field_mask = value_bits((unsigned)width) << lsb;
&& cmp.value & ~value_bits((unsigned)ck->field_width))
(uintmax_t)value_bits((unsigned)ck->field_width));
uint64_t vbits = value_bits(bits);
uint64_t mask = value_bits(size_in_bits(t));
return value_bits(width_in_bits(tp));
uint64_t vbits = value_bits(width);
uint64_t nmask = value_bits(width_in_bits(tp));
xmask = value_bits(nbitsz) ^ value_bits(obitsz);
xmsk1 = value_bits(nbitsz) ^ value_bits(obitsz - 1);
if (new_unsigned && (~value_bits(new_width) & ~a.bclr) == 0)