HP HP-67 - Page 163

Program Editing 159
You now have one more [} instruction to add to the Pythagorean
Theorem program. The £} instruction should be added after the
[h] instruction, keycode 35 52, that is now loaded in step 004
of program memory. If you have just completed loading a [}
instruction in step 008 as described above, the calculator is set at
step 008 of program memory. You can use to back the calculator
up to step 004, then insert the [} instruction in step 005. To
begin:
Ensure that the Program Mode switch werm [[[[IlllRuN is set to
W/PRGM.
Press Display
008
32
84]
Calculator
initially
set
to
step 008.
0
007
37
54|
Pressing(BST)
once
moves
the calculator back one
step in program memory.
When you press (3 , the calculator backs up one step in program
memory. No instructions are executed when you use the key.
Continue using the key to move backward through program
memory until the calculator displays step 004.
Press Display
0 006 61
Q 005 32 54
Q) Bst 004 35 52
Since you wish to insert the [l instruction after the (3
instruction now loaded in step 004, you move the calculator to step
904 first. As always, when you key in an instruction, it is loaded
into the next step after the step being displayed. Thus, if you press
o now, that instruction will be loaded into step 005 of program
memory, and all subsequent instructions will be moved down, or
‘‘bumped,’’ one step.