vec_srab: Vector Shift Right Arithmetic by Byte

d = vec_srab(a, b)

Performs an algebraic right shift for a vector by a given number of bytes. Each element of the result is obtained by shifting the corresponding element of a right by the number of bytes specified by bits 1-4 of byte element seven of b. The bits that are shifted out are replaced by copies of the most significant bit of the element of a.

Table 1. Vector Shift Right Arithmetic by Byte
d	a	b
vector unsigned char	vector unsigned char	vector unsigned char
vector unsigned char	vector unsigned char	vector signed char
vector signed char	vector signed char	vector unsigned char
vector signed char	vector signed char	vector signed char
vector unsigned short	vector unsigned short	vector unsigned short
vector unsigned short	vector unsigned short	vector signed short
vector signed short	vector signed short	vector unsigned short
vector signed short	vector signed short	vector signed short
vector unsigned int	vector unsigned int	vector unsigned int
vector unsigned int	vector unsigned int	vector signed int
vector signed int	vector signed int	vector unsigned int
vector signed int	vector signed int	vector signed int
vector unsigned long long	vector unsigned long long	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 signed long long	vector signed long long	vector signed long long
vector double	vector double	vector unsigned long long
vector double	vector double	vector signed long long