> On Wednesday, August 20, 2003, at 03:28  PM, Gamba wrote:
>
> >> The LC/LCII/ClassicII-type Macs had some special mojo put in the
> >> memory
> >> controller/ROM setup to enable them to see 10 MB, rather than the
> >> usual 8
> >> that most System 6-capable Macs see under 24-bit addressing.
> >> Jutso
> >
> > If 7.1 was installed on LC/LCII/ClassicII-type Macs, and if memory
> > control
> > panel was set to 24 bit addressing, would that yield 8MB or 10MB of
> > RAM?
> >
>
> Hey Gamba, I tried it last night. On a Classic II, you get exactly the
> same amount of available memory (10MB, according to the "about this
> Mac" panel) for both 24bit and 32bit addressing.
>
> As these machines don't have any NuBus slots, perhaps the ROM uses the
> 68030 MMU to add the extra RAM into that space. I sure would like to
> see a memory map of these machines.
>
> OS 6.0.8L will not install on a IIci.
>
> John

<http://developer.apple.com/documentation/Hardware/Developer_Notes/Macintos
h_CPUs-68K_Desktop/Mac_Classic_II.pdf> has some interesting remarks, see
particularly pp. 10 - 12.

--
Over,

        Jutso

        http://pages.ripco.net/~jutso/


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