How to make Apple II+ video address linear?

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July 4, 2020 - 5:14am
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tylak
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How to make Apple II+ video address linear?

Hi,

I read some book that it only takes a TTL IC  to make the video addresses linear. No further details.

Anyone know how? Will it affect the refresh time? 

Just curtous about it.

 

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July 5, 2020 - 7:42pm
rittwage
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Not sure, but if you managed

Not sure, but if you managed to do it, wouldn't it become instantly incompatible with all software, including it's own ROMs?

 

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July 7, 2020 - 11:04pm
tylak
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Yeah, it would but if anyone

Yeah, it would but if anyone is into 'enhancing' the Apple II trough FPGA etc.. like the TMS9918A board.

Anyway I read that in the preface of one of the 3rd party technical book that I thought was interesting. 

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