Mac Rom Debugger (was: Re: Apple II for into to microprocessors)

From: tim lindner <tlindner_at_ix.netcom.com>
Date: Sat Jul 14 09:47:00 2001

>>the early macs at least also have a built in ROM-Monitor :)
>>probably the later ones too, although I think that they stopped
>>including in the powermac series.
>
> My B/W G3 still has the programmer's switch on the front
> panel and I believe that the G4's we have at work still do as well.
> I don't recall if the iMac's do or not. When pressed, it still drops
> you to the '>' prompt but none of the manuals that ship with the
> machines tell you anything about it. I've never been able to exit
> back out of it without rebooting, nor have I actually gotten it to
> show any of the info one generally does from a monitor program.
>
> Jeff

http://developer.apple.com/technotes/tn/tn1136.html

Quote:

About MicroBug

MicroBug was first introduced with the Mac Plus and has been a standard
component in the ROM of all Mac OS computers since then. MicroBug is invoked
when the system takes a Non-Maskable Interrupt (NMI) and there is no other
debugger (e.g., MacsBug) installed.

**

I have been lurking here for about a month and am so excited I can finally
contribute!

:)

--
tim lindner                         tlindner_at_ix.netcom.com
"Life. Don't talk to me about life." - Marvin, the android
Received on Sat Jul 14 2001 - 09:47:00 BST

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