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-
-
- DEFINING the RUN/STOP and RESTORE KEYS
- by
- John Kottler
-
-
- COMMODORE MICROCOMPUTERS MAGAZINE
- July/August, 1986
- p. 96
-
- **************************************
- NOTE: Because of the nature of this
- program, it cannot be run from the
- Loadstar operating system. To run
- this program, exit Loadstar and type:
-
- LOAD"R/S RESTORE",8 [RETURN]
-
- RUN [RETURN]
-
- **************************************
-
-
- A good feature to have in many
-
- kinds of programs is a "pause"
-
- feature-- one that allows the user to
-
- stop the program by pressing the
-
- RUN/STOP key and then continue by
-
- pressing RUN/STOP a second time.
-
-
- As you might expect, this is easier
-
- said than done-- after all, how can
-
- the computer test to see if the
-
- RUN/STOP key has been activated when
-
- that key automatically stops the
-
- program? The first step is to disable
-
- the RUN/STOP key using POKE 808,234.
-
-
- With the STOP key disabled, we can
-
- check for someone pressing it with:
-
-
- IF PEEK(197)=63 THEN (PAUSE).
-
-
- John Kottler's "Program 1"
-
- does the necessary programming work
-
- for you-- it POKEs a machine language
-
- program disabling the RUN/STOP key and
-
- then automatically runs a second demo
-
- program. When you run the second
-
- program, you will see that pressing
-
- the RUN/STOP key will cause the
-
- program to "pause".
-
-
- To run "Program 1" with your own
-
- programs you must first delete Line
-
- 35. (To delete the line, load
-
- "Program 1", type "35" --no quotes--
-
- and press RETURN.
-
-
- If you want to learn more about the
-
- ins and outs of adding pause features
-
- to your programs, be sure to check out
-
- Kottler's article in the
-
- MICROCOMPUTERS magazine cited at the
-
- beginning of this article.
-
-
- DISK FILES USED:
-
- R/S RESTORE
-
- -----------< end of text >------------
-