λ x x0 : word64 * word64 * word64 * word64 * word64 * word64 * word64,
Interp-η
(λ var : Syntax.base_type → Type,
 λ '(x14, x15, x13, x11, x9, x7, x5, (x26, x27, x25, x23, x21, x19, x17))%core,
 (((0x1fffffffffffe + x14) - x26), ((0x1fffffffffffe + x15) - x27), ((0x1fffffffffffe + x13) - x25), ((0x3fffffffffffe + x11) - x23), ((0x1fffffffffffe + x9) - x21), ((0x1fffffffffffe + x7) - x19), ((0x3ffffffffffe2 + x5) - x17)))
(x, x0)%core
     : word64 * word64 * word64 * word64 * word64 * word64 * word64 → word64 * word64 * word64 * word64 * word64 * word64 * word64 → ReturnType (uint64_t * uint64_t * uint64_t * uint64_t * uint64_t * uint64_t * uint64_t)