Re: A86: 86 backups


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Re: A86: 86 backups



> speaking of that i put oshell onto someones calc and with the
> messed up customs menu it crashed. i noticed that the menu
> was full of tan-1 cos, etc. i thought it was pretty interesting that
> these were in there do you think it cross-linked into those parts
> of the mem?

The custom menu is a bunch of absolute pointers to ROM. In
different ROM versions, the pointers are different, but the backup
doesn't chenck them. So, they point to incorrect places in ROM,
giving weird titles on the menu and crashing the calc when
selected. To solve the problem, just clear everything except F1
(the shell). The custom menu will then resume normal operation
(the shell's pointer is the same, so you don't have to clear it).