HP 3000 Manuals HP 3000 Manuals
SHIFT
The SHIFT function moves each bit of a number a specified number of
places. If the number of places is positive, the bits move to the right,
and if negative, to the left. If a bit is shifted out of the number, it
is dropped.
Syntax
SHIFT(N1,N2)
Parameters
N1 Binary representation of the value of a numeric
expression. This is a short integer. This is the
number whose bits are to be shifted.
N2 Binary representation of the value of a numeric
expression, a short integer. This is the number that
specifies how many places to shift the bits. N2 must be
in the range [-32767, 32767].
Examples
The following shows the bit layout for N1, and several examples of the
SHIFT function. Each example uses a different value for N2.
Bit Number: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
N1 0 1 1 0 0 0 1 1 0 1 0 1 1 0 1 0
SHIFT(N1,-1) 1 1 0 0 0 1 1 0 1 0 1 1 0 1 0 0
SHIFT(N1,1) 0 0 1 1 0 0 0 1 1 0 1 0 1 1 0 1
SHIFT(N1,-3) 0 0 0 1 1 0 1 0 1 1 0 1 0 0 0 0
SHIFT(N1,4) 0 0 0 0 0 1 1 0 0 0 1 1 0 1 0 1