[Coco] Clock "Timing".

L. Curtis Boyle curtisboyle at sasktel.net
Tue Apr 4 18:08:30 EDT 2017


That's what I know of too... although there two versions of the first one. Early versions of it were missing he last, more technical, sections. 

Sent from my iPhone

> On Apr 4, 2017, at 4:06 PM, Bruce W. Calkins <brucewcalkins at charter.net> wrote:
> 
> I am aware of 4 different "Basic" books.  Getting Started With Color Basic, Going Ahead With Extended Color Basic, Getting Started With Extended Color Basic, and the version that came with the CoCo 3.
> 
> Bruce W.
> 
> 
> 
>> On 04/04/2017 03:21 PM, Arthur Flexser wrote:
>> It wouldn't have been in the Getting Started book, which does not cover
>> Extended Basic, where the TIMER function exists.  It would be in Going
>> Ahead With Extended Basic.  (Maybe later editions combined the two.)
>> 
>> Art
>> 
>> On Tue, Apr 4, 2017 at 3:05 PM, John Lochey via Coco <coco at maltedmedia.com>
>> wrote:
>> 
>>> Hi Art,
>>> I totally missed TIMER function.
>>> I had read through "Getting Started...Basic" awhile ago, and was actually
>>> doing a search through the PDF and completely missed that Function.
>>> 
>>> I will incorporate that into my program.
>>> Thanks a lot!  :)
>>> 
>>> 
>>> Johnny
>>> 
>>> 
>>>       From: Arthur Flexser <flexser at fiu.edu>
>>>  To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>>>  Sent: Tuesday, April 4, 2017 3:00 PM
>>>  Subject: Re: [Coco] Clock "Timing".
>>> 
>>> There's a TIMER function in Extended Basic that is a 60th of a second
>>> counter.
>>> An example of the syntax would be Y=TIMER to read the timer.  You can also
>>> zero it with TIMER=0. This is all interrupt driven, so your program can be
>>> doing other things as the count increases.
>>> 
>>> I believe it's accurate to something like a 10th of a percent or
>>> thereabouts.
>>> 
>>> Art
>>> 
>>> On Tue, Apr 4, 2017 at 2:50 PM, John Lochey via Coco <coco at maltedmedia.com
>>> wrote:
>>> 
>>>> Hi all,
>>>> I'm making a binary clock for the CoCo2 via emulation (XRoar at the
>>>> moment).
>>>> 
>>>> As far as I know (from reading "Getting Started...Color Basic"), the way
>>>> to time an actual second of time on a Color Computer 2 is to use a
>>>> For...Next loop that corresponds as closely to an "actual" second as
>>>> possible.
>>>> Is there a better way using just the Extended BASIC command set?
>>>> Also, provided that the emulator has the same settings as the original
>>>> CoCo2, will the same timing loop work via emulation and hardware?
>>>> 
>>>> Or am I a dreamer!  ;)
>>>> 
>>>> Johnny
>>>> 
>>>> 
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