[Coco] Disto SC add-ons
Darren A
mechacoco at gmail.com
Fri Jan 2 01:35:17 EST 2009
Try this link Roger:
<ftp://maltedmedia.com/coco/VARIOUS/TUTORIALS/HARDWARE/FULLTURN/SECTIONS/FullTurn_P125_134.pdf>
The article is called "Increasing Character Display".
Darren
---
On 1/1/09, Roger Taylor wrote:
> At 10:11 PM 1/1/2009, you wrote:
>>Roger, Tony did an article on this board for Rainbow, I think it was
>>called "Increasing Character Display" and if I'm not mistaken, it's
>>in "A Full Turn of The Screw" which I've found on the maltedmedia
>>ftp. It gives the CoCo's addresses for the register map - i think it
>>was mapped in such a way that you write the address to the chip via
>>a port, then you read or wrote the data to that location, and so on.
>>It worked with basic and OS-9 - the original C-DOS had the D80
>>ON/OFF commands. I think the one you have supported smooth scrolling
>>(by pixel rather than character). It should be simple enough, with
>>the turn of the screw article, to write a disk basic driver -
>>intercept the RAM Hook for video and route it to the driver. -J.eric
>
>
>
> I found the directory of Full Turn of the Screw article archives but
> can't find anything about the Disto SC or add-on cards. Can you
> point me to the directory or file you're referring to?
>
> Thanks
> Roger Taylor
>
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