def cr.vm.last64
import bend-osdev-crypto@0.1.0.0/vmac.bend as Vmacimport Base
import bend-osdev-word64@0.1.0.0/word64.bend as W
272def cr.vm.last64(x: CrU128) -> W.W64:
273 match x:
274 case CrU128{h, +l}:
275 +y = W.W64.add(l, W.W64.mul(h, cr.vm.w(257)))
276 cr.vm.sub64.pick(W.W64.is_ge(y, cr.vm.p64()), y)