[Coco] Coco3 arrow key peek from basic
rietveldh at hotmail.com
Fri Feb 9 23:16:43 EST 2018
I just solved my problem :
Up arrow. If peek(341)=247
Down arrow if peek(342)=247
Left arrow. If peek(343)=247
Right arrow. If peek(344)=247
I just polled the keyboard like u suggested and looked for a value change
Sent from my BlackBerry Passport Red Edition.
From: Robert Gault
Sent: Friday, February 9, 2018 9:50 PM
To: CoCoList for Color Computer Enthusiasts
Reply To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Coco3 arrow key peek from basic
rietveld rietveld wrote:
> I am still having trouble with PEEKING to check for an Arrow key press on the coco3 from a BASIC program
> Any suggestions?
> Sent from my BlackBerry Passport Red Edition.
You should look in the Coco3 service manual on page 40 to see how the keyboard is laid out. You
should look at the Spectral Associates "Color Basic Unravelled", page B 79, where there is a
disassembly of "Read the Keyboard" at $A238.
You could also check the contents of $152-$159 to see what if any data is placed there after an
arrow is pressed.
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