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MacsBug Clocks...

iMac600

Well-known member
I have to wonder a little about this, because even though it seems pretty clear what the case is, i'm surprised that nobody i've run it past has heard of such a thing.

For some reason I decided to run MacsBug on my 512Ke floppies. Hell if I know why, just did. It didn't really seem to do anything, thankfully it wasn't really ever needed, but I kept it on board regardless.

So, I installed one of my favourite screensavers of all time (that's right, all time), which is Pyro. It runs like a dream on the 512k with System 4.1, which I was really happy with since I could let the Mac sit for hours on end just running Pyro. Maybe i'm just easily amused, i'd say that's pretty likely.

But... if I ever activated it by the hot corner, or even just waited a while, another little "clock" screensaver would jump in over the top every time. It's basically a little analog clock with a constantly changing time (that is, the hands appeared in random positions each time), jumping around the screen at 3 second intervals like the "Windows XP Logo" screensaver you occasionally see.

It annoyed the hell out of me. Even writing a perfectly clean floppy image downloaded from the web didn't get rid of the little clock. I gave up for a while, that is until tonight, when I discovered the source of the problem.

MacsBug.

When it was in the system folder, the clock would appear. When it's not, it doesn't appear. Now I don't know the story of MacsBug all that well, and i'd certainly never heard of it having a screensaver built in. Judging by the few others I asked, they hadn't seen this before either.

Needless to say, the boot disk with Pyro on it no longer has MacsBug installed.

So... anyone knowledgeable in MacsBug or really old Macintosh Systems care to give me a bit of a run down on just what MacsBug did and why it may have a screensaver in it? In addition, perhaps i'm running an odd version of it (I recall multiple versions of MacsBug over the years) that includes such a screensaver.

 

MarkS

Well-known member
I've used Macsbug, but not for more than a decade. I don't remember that. I vaguely remember some sort of easter egg associated with it, but I'm not sure what that was.

 

Kallikak

Well-known member
Macsbug code is all in the datafork of the macsbug "application". At least one version had a Mandelbrot drawing application in the resource fork (where 68k code and other resources live) so that it did something if you double clicked on it, but that was completely unrelated to the actual debugger functionality. Sounds like your macsbug has similarly been merged with some other application. You downloaded it from the internet? Give me the link and I'll have a look.

Ken

 

iMac600

Well-known member
It's copied from another floppy disk actually, and that second floppy was bought in a box of 10 random floppies from a market, so it's not online from what I can tell. I wouldn't be surprised if what you were saying is correct and that it *has* been merged with another application considering the discs it came from were home made and most likely modified.

I could try and make a dump of the disc (including MacsBug) but i'll need to drag the Beige G3 out of storage for that.

 
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