Re: Adventures in Lasing ;)

[steve@dosius.zzn.com (Dosius)]

supertimer@aol.com (Supertimer) wrote in message news:<20030323180106.10326.00000321@mb-ci.aol.com>...
> steve@dosius.zzn.com (Dosius) wrote:
> 
> >I'm thinking of emulating a Laser 128 (Apple //c clone, 128K RAM,
> >5.25" drive).  Yeah, I know.
> >
> >Does anyone have any information, BIOS ROM code, etc. for this system?
> > And no, I don't mean the 128EX.  I am in the process of STFW (Search
> >The Fscking Web) ;) at this moment but I seem to be turning up a
> >blank. :\
> 
> Look up the SimSystem IIe emulator.  I can swear this is
> a rip-off of the Laser ROM.  SimSystem IIe claims to be
> the only emulator with reversed engineered compatible
> ROM.  Maybe that's true but I suspect it is the Laser
> ROM (which in fact was reversed engineered by Video
> Technology).

I believe you are correct.  Monitor looks the same, boot looks the
same, only thing missing is the Central Point Software (!) copyright.
(CPS -> merged into Symantec?)  Now if only I knew how to page (bank)
it...

> The ROM for the 128 and 128EX should be almost the
> same.  The 128EX/2 is the one with a lot of extra stuff
> because of the Universal Disk Controller built in.  The
> ROM has to be larger because it includes the ROM
> code for the integrated peripherals such as the UDC
> and the control panel.

Of course. ;)
 
> If you can find an actual Laser 128, the ROM is in a
> socket underneath the unit with a screwed on metal
> door covering the chip.  The chip is a standard
> EPROM chip with the UV erase/program window
> covered by tape.

:\ If only I knew how to read a ROM chip.  I always dump to disk ;)
(hmm, why aren't my //e SSC and my Laser 486SX/25 COM2 talking to each
other yet?)

-uso.