[Coco] Extended basic 1.1 command?

[Arthur Flexser]

Shouldn't $FF00's contents be ORed with $FC rather than $80, if the
intent is to set all but the lower 2 bits?  (ORing actually should be
unnecessary so long as the user isn't mashing down any keys at the
same time as the joystick button is being checked, I think.)

Art

On Tue, Nov 20, 2012 at 7:15 PM, Bill Pierce <ooogalapasooo at aol.com> wrote:
>
> Charlie,
> You have to use PEEKs in CB & CEB for the firebuttons.
> "BUT=PEEK(&HFF00) OR &H80"
> "IF BUT=&HFF"  = no button
> "IF BUT = &HFE" = right button
> "IF BUT = &HFD" = left button
>
> I think that's right,
> Hope it helps
> Bill P
>
> Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Bill Pierce
> ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Charlie <chazbeenhad at hotmail.com>
> To: coco list <coco at maltedmedia.com>
> Sent: Tue, Nov 20, 2012 6:42 pm
> Subject: [Coco] Extended basic 1.1 command?
>
>
> I am trying to edit one of my old programs written on the Coco3 to run on my
> Coco1.
>
> The program reads
>
> 120 IF BUTTON(0)=1 THEN 140
> 130 GOTO120
>
> This detects if Joystick 0 button is pressed, if so goto 140...
>
> I see that BUTTON is not a valid command in Extended Basic 1.1 in my coco1.
>
> Can someone give me a simple example how to do the equal of these two program
> lines in the older Extended Basic?
>
> Thanks.
>
> Charlie
>
>
>
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