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                          Agnus/
                  Read/   Denise/
Register Address  Write   Paula         Function
-------- -------  -----   -------       --------
AUDxVOL    0A8      W       P      Audio channel x volume

                 This register contains the volume setting for
                 audio channel x.  Bits 6,5,4,3,2,1,0 specify 65
                 linear volume levels as shown below.

                 Bit#    Use
                 ----    --------------------------
                  15-07  Not used
                  06     Forces volume to max (64 ones, no zeros)
                  05-00  Sets one of 64 levels (000000=no output
                         (111111=63 1s, one 0)