DATA 620/i SYSTEM REFERENCE MANUAL . - Al Kossow's Bitsavers

LLRL Long Logical Rotate Left Timing: 1 + 0.50 n
cycles (n =
number of
sh ifts)
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 0
~- T- ! 00 4 440 + n
L_..J..._ ......_____---L___-'"""'________--'
lIS-bit I
option
The contents of the A and B registers are rotated n positions to
the left (n = 0 to 37 8
). Bit position A 15
(A 17
) is shifted into
bit position BO.
Indexing: No
Indirect Address: No
Registers Altered: A, B
I ASRA I Arithmetic Shift A Right
Timing: 1 + 0.25 n
cycles (n =
number of
shifts)
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 0
r L _.J.. - T _- ..... !_____ 00 -'"""'___ 4 --'-________ 300 + n --'
I IS-bit I
option
The contents of the A register are shifted n positions to the
right (n = 0 to 37 8
), Bits shifted out of the low-order
positions of A are lost. The sign bit of A, A 15
(A 17
) is
extended n places to the right.
Indexing: No
Indirect Addressing: No
Registers Altered: A
3-20