[Coco] replacing main rom

[William Astle]

jdaggett at gate.net wrote:
> Art
> 
> My search through the code has yielded no such usage of the timer 
> by the Super Extended Code at all. I also do not see where there is 
> any patch in the blink routines to allow for the GIME timer to control 
> the blink time. 
> 
> I maybe wrong and have not found any reference to the GIME timer 
> usage though.
> 
> This does seem to support the basic belief that the GIME timer was 
> for program development for games or other means.

Super extended basic initializes the timer to the maximum possible value 
(IIRC) in one of the "block transfer" initialization bits. There is no 
software setting to enable or disable the use of the timer to control 
the blink rate - the GIME just uses it to do so. If the timer is 
disabled, text doesn't blink.

> 
> james
> 
> 
> 
> On 11 May 2005 at 15:33, Arthur Flexser wrote:
> 
> Date sent:      	Wed, 11 May 2005 15:33:47 -0400 (EDT)
> From:           	Arthur Flexser <flexser at fiu.edu>
> To:             	CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
> Subject:        	Re: [Coco] replacing main rom
> Send reply to:  	CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
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> 
>>On Tue, 10 May 2005 jdaggett at gate.net wrote:
>>
>>
>>>To my knowledge I am not sure that the Coco 3 rom uses the timer for
>>>anything.
>>
>>I seem to recall that the timer is used by Super Extended Basic for
>>controlling the cursor blink rate on the 40/80 column screen.
>>
>>Art
>>
>>
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> 
> 
> 
> 


-- 
William Astle
finger lost at l-w.net for further information

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