lisa1 emulation

[gilles]

Hello,

to help someone trying to resurect a lisa1 I added twiggy drive support to my emulator (IDLE).

Since some twiggy floppy were imaged by bitsavers.org there is some content to test.

Emulation is not perfect because clamping/unclamping is not fully tested (& I do not have a lisa1 system to test) but LOS 1.00 can be installed.

Source code only, tested on linux (a binary exists for windows but my compilation environment is a bit broken for vista and above...).

http://sourceforge.net/p/idle-lisa-emu/code/HEAD/tree/

(now with svn since cvs support was dropped by sourceforge).

You will need rev C cpu roms to test a lisa 1. They are somewhere on the net in intel hex form (need to convert to plain binary).

 

[gilles]

Currently converting the emulator to use SDL1.2 and not Allegro4 that is now a bit outdated. SDL1.x is also outdated but SDL2 is not supported on every old platform yet.

Port is nearly complete, finding a suitable menu system was not an easy task, the hatari/aranym/Previous minimal menus were used to have forms and fileselector (sdl-widgets1.x was tested but does not give full access to SDL).

 

[snuci]

Hi Gilles,

I just wanted to add a comment since there are none at the moment but like me, there are probably others who feel that this is important work and are watching with interest.

Thanks for taking the time to do this for the vintage computing community.

 

[gilles]

I know that this kind of post is mostly "read only"