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gilles

Gemdos + GEM for lisa

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I found lisa gem binaries years ago (somewhere in old digital research archive that went public from Caldera here for example http://www.deltasoft.com/downloads-gemworld.htm).

The gemport file contains lisa binaries.

Reading sources I found the way to pack this as a bootable lisa floppy image (tested under emulator for now).

Lisa + gemdos was the first devkit for atari ST TOS development http://www.dadhacker.com/blog/?p=1000

Capture du 2018-02-01 22-56-37.png

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tested on real hardware (lisa 2/10 + Xprofile) ... until command boot (my lisa keyboard is faulty with lots of partial pads inside :) )

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disc image (for 400k floppy only) is on my page (and binary for Idle emulator on sourceforge are now r23 release (needed for gemdos because I was throwing an unexpected bus error on some condition)).

 

http://www.alternative-system.com/?page=gemdos_lisa&lang=EN

http://www.alternative-system.com/files/gemdos_lisa/binary/gemdos.dc

 

(fixed) tool will be put on github later

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Hello,

I tried to create a 400K Lisa floppy with both Dart and DiskCopy 4.2

Floppy creation doesn't report any error, but when I boot the Lisa with that floppy, it stops with the hourglass after 10-20 seconds.
I have a Lisa 2/10 with 400K floppy, 2MB Ram, X/Profile and SCSI disk (tried with both switched off).

Do you have any idea why it doesn't boot?

Thank you!

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it appears that the gemdos part is unfinished, but I posted a new image that should work for 1.5 and 2Mb ramsize.

The problem with more than 1mb is that video base address is not where the coders from DRI hardcoded it. I added a builtin command "MAGIC" in command.prg to force the normal value of 1Mb lisa.

gemdos.dc

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