vec_genmasks_64: Vector Generate Mask (Doubleword)
d = vec_genmasks_64(a, b)
Generates
bit masks for elements in the return vector. For each doubleword element
in d, a bit mask is generated. The mask consists
of bits set to one starting at the bit position specified by a and
ending with the bit position specified by b. All
other bit positions are set to zero.
Notes:
- If a or b is greater than 64, the operation is performed as if the value gets modulo by 64.
- If a is greater than b, the operation is perform as if b equals 63.
d | a | b |
---|---|---|
vector unsigned long long | 0-255 | 0-255 |