Date   : Thu, 22 Sep 1994 09:14:59 +0100 (BST)
From   : Mike Borcherds <borchrds.teaching@...>
Subject: booting up

On the subject of booting up, I found that I didn't need to emulate any
hardware - intercepting OSRDCH and OSWRCH was enough to get BASIC II
running.
You can also bypass the OS quite happily if you set A=1 and JMP &8000.

The only location in Sheila that makes much difference when booting up
is FE4E - I think 0 is the value you need to set it to.

To the person whose emulator wasn't enabling keyboard interrupts, I _think_
this is done on a timer 1 interrupt (!)
(well mine enabled them when I started doing a timer 1, and all the keyboard
stuff is heavily dependent on T1 anyway)

cheers,

Mike

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