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HP HP-15C User Manual

HP HP-15C
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Section 6: Programming Basics 77
Keystrokes
Display
1 ´ m %
1.0000
R
1
and R
0
allocated for data
storage; R
2
to R
65
available for
programming and advanced
functions.
19 ´ m%
19.0000
Original allocation: R
19
(R
.9
) and
below for data storage; R
20
, to
R
65
for programming and
advanced functions.
*
lm%
19.0000
Displays the current highest data
register.
The m and W (memory status) functions are described in detail in
appendix C.
Keep in mind that an error message will result (given the above memory
configuration) if
1.
You try to address a register higher than R
19
(R
.9
), which initially is
the highest register allocated to data storage (Error 3).
2.
You have 322 occupied program bytes and try to load more program
lines (Error 4).
3.
You try to run an advanced function with insufficient available
memory (Error 10).
Program Boundaries
End. Not every program needs to end with a n or ¦ instruction. If
you are at the end of occupied program memory, there is an automatic
n instruction, so you do not need to enter one. This can save you one
            
transferring execution to another routine using t (section 7).
Labels. Labels in a program (or subroutine) are markers telling the
calculator where to begin execution. Following an ´ label or G label
instruction, the calculator will search downward in program memory for the
*
For memory allocation and indirect addressing, registers R
.0
through R
.9
are referred to as R
10
through R
19
.

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HP HP-15C Specifications

General IconGeneral
BrandHP
ModelHP-15C
CategoryCalculator
LanguageEnglish

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