Function vec_subec_u128

#[target_feature(enable = "vector")]
pub unsafe fn vec_subec_u128(a: vector_unsigned_char, b: vector_unsigned_char, c: vector_unsigned_char) -> vector_unsigned_char

Vector Subtract with Carryout, Carryout

Gets the carry bit of the 128-bit subtraction of two quadword values with carry bit from the previous operation.

It returns a vector containing the carryout produced from the result of subtracting of b from a, and the carryout bit from a previous operation. If no borrow occurred, the 127-bit of d is 1, otherwise 0. All other bits of d are 0.

Note: Only the borrow indication bit (127-bit) of c is used, and the other bits are ignored.