I see the Mega ST ET4000 Hack -- here's the updated URL http://atari4ever.free.fr/ It's a pretty impressive mod -- it's actually not a VME Mod but something that connects the ET4000 to a plain ST.. (so it could technically be wired into a regular 520/1040ST too). Here is a VME to iSA adapter intended for MEga STE/TT - http://freenet-homepage.de/68k/pdf/nova_adapter.pdf I used to also have an ET4000 - my first 'fast' graphics card for DOS. Would run up to a 16 mhz ISA Bus (20 mhz with artifacting)... On Wed, Jun 21, 2017 at 6:19 PM, Ethan <telmnstr@757.org> wrote:
Thanks - there were drivers written for several VME cards to work on the TT
or MegaSTE. ET4000 (Tseng 4000) chipset cards for example are supported already..
The ET4000 was my very first VGA card, ISA style. I remember having to Hex Edit deluxe paint II to get that sweet 800x600x16 color mode.
Woah: http://web.archive.org/web/20070202082609/http://atarihacks.cjb.net/
Under video. Looks like there is a hack to wire the ET4K ISA card into VME slot. Looks like there is a GAL file as well so it's more than just wires, some logic shifting. Perhaps the same thing as that NOVA adapter.
Fascinating!