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Re: Apple II VGA Video Generator Card Project
- Subject: Re: Apple II VGA Video Generator Card Project
- From: bieling@terra.es
- Date: 20 Feb 2006 13:07:43 -0800
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> It can be forth try unless we have to find other way to add a new
>softswitch to support video mode for EGA and VGA. Apple II can't add new
>softswitches unless we should be able to modify softswitch logic on the
>motherboard.
You don't need to modify the motherboard.
The softswitches are in the vga card and only affect the video coming
out of the vga card.
>I have read if I understand, but I want to give you my thought. They
>claim to add incompatible video mode. Do you mean to add new softswitch for
>VGA? If it is the issue, I would suggest to have 256 colors at 320x200
>resolution. Total bytes are 64,000. You can divide it into 32,000. Main
>memory will have 32,000 bytes and aux memory will have 32,000 bytes. Both
>of them start at $2000 through $9D00...
Hmmm, we have to think carefully about this things.
Nowadays a common 17" LCD has 1280*1024 pixel, and this means 1.280
kilobytes @8bit screen depht... or 3 times as much for real color...
(did we mention color palletes yet ?)
Does an Apple II eat this ?