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Re: help diagnosing an Apple IIe, please.
To: Michael J. Mahon
On Sat, 28 Feb 2009 22:01:53 -0800, Michael J. Mahon wrote:
> Jeff Blakeney wrote:
>> To: Michael J. Mahon
>> On Fri, 27 Feb 2009 15:32:30 -0800, Michael J. Mahon wrote:
>>
>>>You can also GET the key after determining that one has
>>>been pressed:
>>>
>>>40 IF PEEK(KB)>127 THEN GET A$
>>
>> Does the GET clear the keyboard strobe as well? If so, that is really
>> cool and is something I never knew. I'll have to remember that one.
>
> Yes, it does. (It would have to to avoid GETting the same keypress
> over and over.)
Yeah, after thinking about it a bit it made sense to me that it must be
clearing the strobe.
> The only way to sense the keyboard from Applesoft without clearing
> the strobe is to PEEK it. In this case, it is PEEKed to avoid waiting
> at the GET when no key has been pressed.
This is very cool. I've always used either PEEK/POKE or GET for single
keypresses depending on whether I needed to do anything while waiting.
Knowing I can use a hybrid of the two is really cool in that I don't
need to deal with ASCII codes (except with control characters) and can
continue to use strings all the time.