70 Section 5: Programming Basics
display. Either of these conditions signifies that the program itself probably
contains an error.
To determine at which program line execution has halted (in order to locate the
error), press any key to clear the Error display, then press ¥ to set the
calculator to Program mode and display that program line.
You may also want to display the current program line (by pressing ¥) if
your program has halted at one of several ¦ instructions in your program
and you want to determine which one that is. To continue executing the program
afterward:
1. Press ¥ to set the calculator back to Run mode. This also sets the
program back to line 00.
2. If you want to resume execution from the program line at which
execution halted rather than from line 00, press t followed by the
two-digit program line number desired.
3. Press ¦ to resume execution.
Stopping Program Execution Manually
Pressing any key while a program is running halts program execution. You may
want to do this if the calculated results displayed by a running program appear
to be incorrect (indicating that the program itself is incorrect).
To halt program execution during a pause in a running program (that is, when
© is executed), press any key.
After stopping program execution manually, you can determine at which
program line execution has halted and/or resume program execution as
described above.
Nonprogrammable Functions
When the calculator is in Program mode (PRGM annunciator displayed), almost
every function on the keyboard can be recorded as an instruction in program
memory. The following functions cannot be stored as instructions in program
memory:
´CLEARM
¥ Â
´CLEARu
´W ´‚
t.nn ./=
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