func borrowingSub(a, b: int32; borrowIn: bool): (int32, bool) {.inline, noinit,
    inline, noinit, ...raises: [], tags: [], forbids: [].}

func borrowingSub(a, b: int64; borrowIn: bool): (int64, bool) {.inline, noinit,
    ...raises: [], tags: [], forbids: [].}

func borrowingSub(a, b: uint32; borrowIn: bool): (uint32, bool) {.inline,
    noinit, inline, noinit, ...raises: [], tags: [], forbids: [].}

func borrowingSub(a, b: uint64; borrowIn: bool): (uint64, bool) {.inline,
    noinit, ...raises: [], tags: [], forbids: [].}

func carryingAdd(a, b: int32; carryIn: bool): (int32, bool) {.inline, noinit,
    inline, noinit, ...raises: [], tags: [], forbids: [].}

func carryingAdd(a, b: int64; carryIn: bool): (int64, bool) {.inline, noinit,
    ...raises: [], tags: [], forbids: [].}

func carryingAdd(a, b: uint32; carryIn: bool): (uint32, bool) {.inline, noinit,
    inline, noinit, ...raises: [], tags: [], forbids: [].}

func carryingAdd(a, b: uint64; carryIn: bool): (uint64, bool) {.inline, noinit,
    ...raises: [], tags: [], forbids: [].}

func narrowingDiv(uHi, uLo, v: uint64): (uint64, uint64) {.inline, noinit,
    ...raises: [], tags: [], forbids: [].}