Basic Operation
2-15
Storing and Naming Prorams
After you have made the changes you want to a
program's parameters, you can store the changed
version in a register:
When you store a register, the edited program still has
the same name as the original program. To avoid
confusion, you can assign names to registers. To
rename a register:
1. Press CTRL to enter the control mode.
2. Press PAGE, then press 3 to go to page three.
3. Press the key under the slider marked SEL to
activate the select function. The current name of the
program appears in the lower display.
4. Move the SEL slider. Note that different charac-
ters within the name are selected by a pair of brackets
< > as you move the slider. Select the first character in
the program name.
5. Use the CHG slider to change the character. Note
that a blank space is available at the bottom of the
slider's range, as are several symbols.
6. Repeat steps 4 and 5 until all the characters in the
new name have been entered successfully.
To store your newly-named program in a register:
1. Press REG once to exit Control mode, and enter
the register mode.
2. Press BANK repeatedly to locate the bank you
wish to store the register in. Banks 1 through 5 are
internal registers, and banks 6 through 10 are stored in
the nonvolatile memory cartridge.
Note: If you have difficulty using a cartridge, it
may not have been formatted. Also, cartridges
formatted with earlier versions of software
may not work with later versions until they are
reformatted. See Appendix B for instructions
on how to format the cartridge.
3. Press REG repeatedly to locate an "Unused"
register, or a register you don't mind erasing.
4. With the register number that you want to use
flashing on the display, hold down STO and press
REG. The LARC display flashes
SETUP STORED
This lets you know that the program was stored cor-
rectly.
Loading Registers
Registers are organized into banks, selected and
loaded in exactly the same manner as programs.
However, you press REG to switch from program to
register mode, and press REG instead of PROG when
selecting, storing, and loading registers.
Protecting Against
Loss of Register Contents
Setting up a large number of registers to meet your
personal requirements can represent a considerable
investment of time and effort. To reduce the possibility
of accidental loss of the contents of these registers, the
480L has a memory protection feature. When memory
protection is on, the 480L does not allow anyone to
erase the contents of a register by overwriting it.
However, unused registers can be written to.
The 480L has four protection levels:
• PROTECT INT AND CART
• PROTECT CART
• PROTECT INT
• PROTECT OFF
PROTECT INT protects just the internal registers, but
allows registers stored in the cartridge to be over-
written. PROTECT CART protects the cartridge, but
allows internal registers to be overwritten. PROTECT
INT AND CART protects both internal and cartridge
registers. To activate memory protection:
1. Press CTRL to enter the control mode.
2. Press PAGE, 2 to go to page 2.
3. Move slider six to select one of the four protection
modes.
4. Press CTRL to exit the control mode.
Once activated, memory protection remains in effect
until it is turned off again.
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