TI-99 Viditel Cartridge

[atrax27407]

Since the dumped code works on a Finalgrom99 and can be programmed into a 2764, the dump must be the result of passing the original code through the adapter pictured in the article. 

[RickyDean]

8 minutes ago, atrax27407 said:

Since the dumped code works on a Finalgrom99 and can be programmed into a 2764, the dump must be the result of passing the original code through the adapter pictured in the article. 

Also the dumped code works in Js99er, I tried it last night.

[hofster]

1 hour ago, atrax27407 said:

Since the dumped code works on a Finalgrom99 and can be programmed into a 2764, the dump must be the result of passing the original code through the adapter pictured in the article. 

No, it doesn't have to be done that way. If I had a programmer that could read 2364/2564 EPROMs, I could have used that. The data would still work in a 2764 later because data is just data and the data doesn't know where it's been or where it's going.

But yes, I did extract it using the adapter in the article.

[Colin]

To add to the comments about my "Instant Teletext" board, I have uploaded the circuit diagram here:

 https://www.blunham.com/Radar/Teletext/PDFs/IText.pdf

and the source listing to here:

https://www.blunham.com/Radar/Teletext/Documents/ItextMAINCPY.txt

(There were a heap of iterations of this code).

The board was connected to a TV via the scart socket and functioned as an external teletext decoder, being capable of storing all the pages being transmitted on any one channel and so giving instant access to any page after all the cycle had been transmitted.

See my Teletext page for further info.

https://www.blunham.com/Radar/Teletext

Colin.

[Gary from OPA]

1 hour ago, Colin said:

To add to the comments about my "Instant Teletext" board, I have uploaded the circuit diagram here:

 https://www.blunham.com/Radar/Teletext/PDFs/IText.pdf

and the source listing to here:

https://www.blunham.com/Radar/Teletext/Documents/ItextMAINCPY.txt

(There were a heap of iterations of this code).

The board was connected to a TV via the scart socket and functioned as an external teletext decoder, being capable of storing all the pages being transmitted on any one channel and so giving instant access to any page after all the cycle had been transmitted.

See my Teletext page for further info.

https://www.blunham.com/Radar/Teletext

Colin.

Many thanks for your reply and sharing the info. Greatly appreciated.