vec_addec_u128: Vector Add With Carry Compute Carry unsigned 128-bits

d = vec_addec_u128(a, b, c)

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

This function operates on the vectors as 128-bit unsigned integers. It returns the carry out of a + b + (c & 1).

If there is a carry on this addition, the 127-bit of d is 1, otherwise 0. All other bits of d are 0.

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

Table 1. Vector Add With Carry Compute Carry unsigned 128-bits
d	a	b	c
vector unsigned char	vector unsigned char	vector unsigned char	vector unsigned char