vec_nand
Purpose
Performs a bitwise negated-and operation on the input vectors.
This built-in function is valid only when -qarch is set to target POWER8® processors.
Syntax
d=vec_nand(a, b)Result and argument types
The
following table describes the types of the returned value and the
function arguments.
| d | a | b |
|---|---|---|
| vector signed char | vector signed char | vector signed char |
| vector bool char | ||
| vector unsigned char | vector unsigned char | vector unsigned char |
| vector bool char | ||
| vector signed char | vector bool char | vector signed char |
| vector unsigned char | vector unsigned char | |
| vector bool char | vector bool char | |
| vector signed short | vector signed short | vector signed short |
| vector bool short | ||
| vector unsigned short | vector unsigned short | vector unsigned short |
| vector bool short | ||
| vector signed short | vector bool short | vector signed short |
| vector unsigned short | vector unsigned short | |
| vector bool short | vector bool short | |
| vector signed int | vector signed int | vector signed int |
| vector bool int | ||
| vector unsigned int | vector unsigned int | vector unsigned int |
| vector bool int | ||
| vector signed int | vector bool int | vector signed int |
| vector unsigned int | vector unsigned int | |
| vector bool int | vector bool int | |
| vector float | vector float | |
| vector signed long long | vector signed long long | vector signed long long |
| vector bool long long | ||
| vector unsigned long long | vector unsigned long long | vector unsigned long long |
| vector bool long long | ||
| vector signed long long | vector bool long long | vector signed long long |
| vector unsigned long long | vector unsigned long long | |
| vector bool long long | vector bool long long | |
| vector double | vector double | |
| vector float | vector float | vector bool int |
| vector float | ||
| vector double | vector double | vector long long |
| vector double |
Result value
Each bit of the result is set to the result of the bitwise operation !(a & b) of the corresponding bits of a and b. For 0 <= i < 128, bit i of the result is set to 0 only if the ith bits of both a and b are 1.
