d = vec_subc(a, b)Returns a vector containing the borrow produced by subtracting each of corresponding elements of b from a.
On each resulting element, the value is 0 if a borrow occurred, or 1 if no borrow occurred.
| d | a | b |
|---|---|---|
| vector unsigned char | vector unsigned char | vector unsigned char |
| vector unsigned short | vector unsigned short | vector unsigned short |
| vector unsigned int | vector unsigned int | vector unsigned int |
| vector unsigned long long | vector unsigned long long | vector unsigned long long |