core::arch::s390x

Function vec_subc_u128

Source 
pub unsafe fn vec_subc_u128(
    a: vector_unsigned_char,
    b: vector_unsigned_char,
) -> vector_unsigned_char
🔬This is a nightly-only experimental API. (stdarch_s390x #135681)
Available on s390x and target feature vector only.
Expand description

Gets the carry bit of the 128-bit subtraction of two quadword values. This function operates on the vectors as 128-bit unsigned integers. It returns a vector containing the borrow produced by subtracting b from a, as unsigned 128-bits integers. If no borrow occurred, the bit 127 of d is 1; otherwise it is set to 0. All other bits of d are 0.