Paul Goyette wrote:
> 
> On Mon, 25 Aug 1997, John P. Wittkoski wrote:
> 
> > Colin Wood wrote:
> > 
> > > Hmmm...yeah, I seem to remember someone else saying this at some point.
> > > There must be some low memory global that we don't quite have the right
> > > address for on the IIcx which we are touching.  The only problem with that
> > > idea is that I thought a reboot pretty much wiped everything in memory,
> > > but I guess maybe it doesn't.
> > 
> > How does MacOS determine a cold vs. warm startup?
> 
> Well, there's a longword called WarmStart (located at low-memory global
> location 0x0CFC) that is looked at by (at least) the Slot Manager.  From
> my admittedly low level of understanding of this code, WarmStart contains
> a value of 0x574C5343 (or, 'WLSC' in ASCII) to signal a restart.  I
> haven't a clue as to what the MacOS does differently between the Warm and
> Cold starts.

	I imagine that the main difference is a RAM test. Warm start
would be shorter because it may not need to test every byte in your
(up to) 128MB system RAM, and (up to) 2MB graphics RAM.

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