[B2-devel] Re: basilisk-devel digest, Vol 1 #72 - 4 msgs

[<ni...@in...>]

> >    Is there a complete list of the Gestalts which B2 implements?
> 
> B2 itself doesn't implement any. There are some flags and LM globals by
> which MacOS determines the Gestalt. The fact that no MMU is present is
> enforced in M68K_EMUL_OP_PATCH_BOOT_GLOBS.

	Thanks. I will look into that.


...
> If a program checks for the presence of an MMU it will also want to use it.

	Usually, yes. This is a bizarre case, though. The program is
the NetBSD/Mac68k Booter, which basically checks for appropriate HW,
sets some environment variables, loads a Unix kernel and executes it.
I am the maintainer of the program, and being able to test it in B2
is a real time saver.

	The MacOS program checks for the presence of an MMU because
the Unix kernel needs an MMU. The MacOS program itself doesn't use
the MMU though - it actually fails if MacOS VM is on.


> Unless the MMU is implemented, B2 should report it as missing.

	Agreed. I just want to hack it in to my own copy of B2,
for this one program I am testing.

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