λ x : word64 * word64 * word64 * word64 * word64,
Interp-η
(λ var : Syntax.base_type → Type,
 λ '(x7, x8, x6, x4, x2)%core,
 uint64_t x10, uint8_t x11 = subborrow_u51(0x0, x2, 0x7fffffffffff7);
 uint64_t x13, uint8_t x14 = Op (Syntax.SubWithGetBorrow 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x11, Return x4, 0x3ffffffffffff);
 uint64_t x16, uint8_t x17 = Op (Syntax.SubWithGetBorrow 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x14, Return x6, 0x3ffffffffffff);
 uint64_t x19, uint8_t x20 = Op (Syntax.SubWithGetBorrow 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x17, Return x8, 0x3ffffffffffff);
 uint64_t x22, uint8_t x23 = Op (Syntax.SubWithGetBorrow 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x20, Return x7, 0x3ffffffffffff);
 uint64_t x24 = cmovznz64(x23, 0x0, 0xffffffffffffffffL);
 uint64_t x25 = (x24 & 0x7fffffffffff7);
 uint64_t x27, uint8_t x28 = addcarryx_u51(0x0, x10, x25);
 uint64_t x29 = (x24 & 0x3ffffffffffff);
 uint64_t x31, uint8_t x32 = Op (Syntax.AddWithGetCarry 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x28, Return x13, Return x29);
 uint64_t x33 = (x24 & 0x3ffffffffffff);
 uint64_t x35, uint8_t x36 = Op (Syntax.AddWithGetCarry 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x32, Return x16, Return x33);
 uint64_t x37 = (x24 & 0x3ffffffffffff);
 uint64_t x39, uint8_t x40 = Op (Syntax.AddWithGetCarry 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x36, Return x19, Return x37);
 uint64_t x41 = (x24 & 0x3ffffffffffff);
 uint64_t x43, uint8_t _ = Op (Syntax.AddWithGetCarry 50 (Syntax.TWord 3) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 6) (Syntax.TWord 3)) (Return x40, Return x22, Return x41);
 (Return x43, Return x39, Return x35, Return x31, Return x27))
x
     : word64 * word64 * word64 * word64 * word64 → ReturnType (uint64_t * uint64_t * uint64_t * uint64_t * uint64_t)