On 22 March 2010 00:54, Ray Arachelian <ray@arachelian.com> wrote:

Des Hay wrote:
> Hi
>
> are there any known easter eggs, hidden messages, pictures, or
> otherwise in the Lisa System 7/7 or within the ROM etc?

Hi Des,

I think I remember your Lisa website was one of the earliest out there.
I think I might have a mirror of it still, yup, I think this was yours,
right? http://lisa.sunder.net/mirrors/desieh/HISTORY.HTM
I ran across it when I first got interested in building the emulator and
was gathering all the info I could.

For sure, there are no easter eggs in the ROM, at least not in the H
ROM, as the source code to the H ROM is out there. There is a partially
hidden test mode program in the monitor, but it's well known at this
point, and it's visible in the source code. It's used to read/write
memory in hex and display test patterns so as to calibrate the screen. I
first learned of it on Tom Stepleton's website, but this appears to no
longer be on the web, but archive.org has parts of it:
http://web.archive.org/web/*/http://galena.tjs.org/~tom/

There's also a similarly hidden service mode in the LisaTest program
that lets you run more through tests. Both of these were meant for
Apple Service folks to use and not the end user.

I haven't seen anything hidden in 7/7 as I disassembled pieces of it via
the emulator, but it's possible it's well hidden, after all I would have
only looked at stuff that I could run inside of LOS.

>
> Used to be a list somewhere of all the different once within the mac
> OS, never seen any mention of any hidden features or otherwise within
> Lisa.
>

Of course any easter eggs in early MacOS would probably be visible under
MacWorks. I think the Finder's about box that has the mountains is
visible there, though wetware memory is a bit unreliable, I think I saw
that that logo in Mac System 1.0 which did run under MacWorks on my Lisa.

It's possible the icon "Stolen From Apple" might be in the modified ROM
image that's in MacWorks.
http://www.folklore.org/StoryView.py?story=Stolen_From_Apple.txt

It might have been removed though as that "ROM" isn't a ROM, but rather
loaded from the first MacWorks disk.

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