Re: Apple II Random Events?

[pg@sff.net (Paul Guertin)]

dalloff@freenet.columbus.oh.us (Dave Althoff) wrote:

> : > 50 REM GET A KEY (RETURNS ASCII CODE IN AC)
> : > 60 ZZ= RND(1): ZZ= PEEK(49152): IF ZZ<128 THEN 60
> : > 70 AC= ZZ-128: ZZ= PEEK(49168): RETURN
> 
> A quick trick for Applesoft programmers waiting for a keypress...

Nice trick, Dave. For a no-frills "wait for keypress", I usually
did something like this:

60 WAIT -16384,128: GET C$: RETURN

I've met many Applesoft programmers who, for some reason, had 
never heard of the WAIT instruction.

For extra credit, can you think of a situation where the optional
third argument to WAIT is useful?

Paul Guertin
pg@sff.net