# -------------------------------------------------------------------
# TOM                                   (c) Copyright 1996 Nat! & KKP
# -------------------------------------------------------------------
# These are some of the results/guesses that Klaus and Nat! found
# out about the Jaguar with a few helpful hints by other people, 
# who'd prefer to remain anonymous. 
#
# Since we are not under NDA or anything from Atari we feel free to 
# give this to you for educational purposes only.
#
# Please note, that this is not official documentation from Atari
# or derived work thereof (both of us have never seen the Atari docs)
# and Atari isn't connected with this in any way.
#
# Please use this informationphile as a starting point for your own
# exploration and not as a reference. If you find anything innacurate,
# missing, needing more explanation etc. by all means please write
# to us:
#	  nat@zumdick.rhein-main.de
# or
#	  kkp@gamma.dou.dk
#
# If you could do us a small favor, don't use this information for
# those lame flamewars on r.g.v.a or the mailing list.
#
# HTML soon ?
# -------------------------------------------------------------------
# $Id: tom.txt,v 1.2 1996/01/28 20:35:58 nat Exp $
# -------------------------------------------------------------------
Here are the leftovers of TOM that aren't described in the OP, Blitter
or RISC dox.


INTERRUPT CONTROL:
=================

INT1:
=-=-=
   
  16        12         8         4         0
   +---------^---------+---------^---------+
   |       latches     |       enable      | 
   +-------------------+-------------------+
           15...8              7...0

   enable:
      bit 0:   LEVEL 0 IRQ enable  (VBLANK)
      bit 1:   LEVEL 1 IRQ enable      
      bit 2:   LEVEL 2 IRQ enable      
      bit 3:   LEVEL 3 IRQ enable      
      bit 4:   LEVEL 4 IRQ enable      
      bit 5:   unused      
      bit 6:   unused

   Enable by setting the bit

   latches:
      bit 8:   LEVEL 0 IRQ enable  (VBLANK)
      bit 9:   LEVEL 1 IRQ enable      
      bit10:   LEVEL 2 IRQ enable      
      bit11:   LEVEL 3 IRQ enable      
      bit12:   LEVEL 4 IRQ enable      
      bit13:   unused      
      bit14:   unused

   Clear the latch by setting the appropriate bit.