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.

Table 1. Types of the returned value and function arguments
d a b
vector unsigned long long vector unsigned long long vector unsigned long long
vector signed long long vector signed long long vector signed long long
vector unsigned long long vector unsigned long long vector bool long long
vector signed long long vector signed long long vector bool long long
vector unsigned long long vector bool long long vector unsigned long long
vector signed long long vector bool long long vector signed long long
vector bool long long vector bool long long vector bool long long
vector unsigned int vector unsigned int vector unsigned int
vector signed int vector signed int vector signed int
vector unsigned int vector unsigned int vector bool int
vector signed int vector signed int vector bool int
vector unsigned int vector bool int vector unsigned int
vector signed int vector bool int vector signed int
vector bool int vector bool int vector bool int
vector unsigned short vector unsigned short vector unsigned short
vector signed short vector signed short vector signed short
vector unsigned short vector unsigned short vector bool short
vector signed short vector signed short vector bool short
vector unsigned short vector bool short vector unsigned short
vector signed short vector bool short vector signed short
vector bool short vector bool short vector bool short
vector unsigned char vector unsigned char vector unsigned char
vector signed char vector signed char vector signed char
vector unsigned char vector unsigned char vector bool char
vector signed char vector signed char vector bool char
vector unsigned char vector bool char vector unsigned char
vector signed char vector bool char vector signed char
vector bool char vector bool char vector bool char
vector float vector float vector float
vector float vector bool int vector float
vector float vector float vector bool int
vector double vector double vector double
vector double vector bool long long vector double
vector double vector double vector long long

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 bit of a and b are 1.



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