Commodore 128 System Manual page 29

together to add any necessary space. Then type in the
corrections. You can also type directly on top of undesired
characters, then use INST to add any needed space.
Control
The Control key is used with other keys to do special tasks called
control functions. To perform a control function, hold down the
Control key while you press some other key. A full list of control
sequences is given in Appendix I. Control functions are often
used in prepackaged software such as a word processing
system.
One control function that is used often is setting the character
and cursor color. To select a color, hold down the CTRL key
while you press a number key (1 through 8), on the top row of the
keyboard. There are eight more colors available to you; these can
be selected with the O key, as explained later.
Run /Stop
This is a dual function key. Under certain conditions you can use
the RUN function of this key by pressing the SHIFT and
RUN/STOP together. It is also possible to use the STOP function
of this key to halt a program or a printout by pressing this key
while the program is running. However, in most prepackaged
programs, the STOP function of the RUN/STOP key is
intentionally disabled (made unusable). This is done to prevent
the user from trying to stop a program that is running before it
reaches its normal end point. If the user were able to stop the
program, valuable data could be lost.
Restore
The RESTORE key is used with the RUN/STOP key to return the
computer to its standard condition.
Most prepackaged programs disable the RESTORE key for the
same reason they disable the STOP function of the RUN/STOP
key: to prevent losing valuable data.
CLR/Home
CLR stands for CLeaR. HOME refers to the upper-left corner of
the screen, which is called the HOME position. If you press this
3-9