🚀 go-pugleaf

In article <14241@cbmvax.commodore.com> daveh@cbmvax (Dave Haynie) writes:
>SetCPU uses the MMU to relocate the system stack, if it finds the system
>stack in Chip memory.  It doesn't try to change VBR (Vector Base Register,
>which determines where the vector table used for interrupts and exceptions
>is located) or any Exec stuff.  If MOVESSP works without building an MMU
>table, it might be useful, and if you run it before SetCPU, you will avoid
>moving the system stack twice.  Assuming it works OK in the first place; I
>don't anything about MOVESSP except what you've told me.

MOVESSP doesn't use the MMU and should work even on a vanilla 68000.
It does free the Chip RAM used by the original stack (6K, wow) for re-use,
which doesn't sound possible when using the MMU.

Ed Hanway
uunet!sisd!jeh