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216 Appendix C: Memory Allocation

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).

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

, and R

allocated for data storage. Sixty-

four registers are uncommitted;

none contain program instructions.

| W (hold)

1 64 0-0

19 ´ m

19.0000

) 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.

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HP 15C Manuale Utente Pagina 216