At my suggestion Piers at OneRom has added support for HM7641 PROMS.
Check out his site for details of what OneRom is but in short it's a RP2350 based replacement for many early ROMS/PROMS.
Adding support for HM7641s allowed my to add all the images for the WIlliams Video Decoders (1-6) into a single OneRom, set a jumper to select VD2 and then replace the original in my Defender. Seems to work perfectly.
You can buy OneRoms from Piers and others for less than £10 UKP. The whole project is open source so you can make your own if you want.
Cheers
Andy
Check out his site for details of what OneRom is but in short it's a RP2350 based replacement for many early ROMS/PROMS.
Adding support for HM7641s allowed my to add all the images for the WIlliams Video Decoders (1-6) into a single OneRom, set a jumper to select VD2 and then replace the original in my Defender. Seems to work perfectly.
You can buy OneRoms from Piers and others for less than £10 UKP. The whole project is open source so you can make your own if you want.
Cheers
Andy