HP HP-15C, Owner'S Handbook Manual

Page: 216 / 288

216 Appendix C: Memory Allocation
1. Place dd , the number of the highest data storage register you want
allocated, into the display. 1

dd

65. The number of registers in the
uncommitted pool (and therefore potentially available for
programming) will be (65 –
dd
).
2. Press
´ m %
.
There are two ways to review your allocation:

Press
lm %
to recall into the stack the number of the
highest-allocated data storage register,
dd
. (Programmable.)

Press
| W
(as explained above) to view a more complete
memory status ( dd uu pp-b ).
Keystrokes Display
(assuming a cleared program memory )
*
1
´ m % 1.0000
R
1
, R
0
, and R
I
allocated for data storage. Sixty-
four registers are uncommitted;
none contain program instructions.
| W
(hold)
1 64 0-0
19
´ m
%
19.0000
R
19
(R
.9
) is the highest-numbered
data storage register. Forty-six
registers left in the common pool.
l m %
19.0000
Restrictions on Reallocation
Continuous Memory will maintain the configuration you allocate until a
new
m %
is executed or Continuous Memory is reset. If you try to
allocate a number less than 1,
dd
= 1. If you try to allocate a number greater
than 65, Error 10 results.
*
If program memory is not cleared, the number of uncommitted registers ( uu ) is less owing to allocation of
registers to program memory (
pp
). Therefore,
pp
would be >0 and b would vary.