__builtin_national2packed
Purpose
Transforms the national decimal value to packed decimal format.
This built-in function is valid only when -qarch(-mcpu) is set to utilize the POWER9™ technology and the altivec.h file is included.
Prototype
vector unsigned char __builtin_national2packed(vector unsigned char a, unsigned char b);
Usage
Transforms a from national decimal format to packed decimal format.
The value of b can only be 0 or 1.
The sign code of the result is set according to the following rules:
- If a is positive, the sign code is set according to the following rules:
- If b is 0, the sign code is set to 0xC.
- If b is 1, the sign code is set to 0xF.
- If a is negative, the sign code is set to 0xD.
