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ApPENDIX
H
Programmers' Reference
This
chapter contains
technical information for
programmers
interested
in
programming
the digitizing
portion
of
Audio
Animator.
It
is not a
programming
tutorial.
If
you're
not
a programmer you
should
ignore
this
information. Don't look
at
it. Don't
even
think
about
iL
The
card
will
run fine
without
knowing
what's
under the hood.
Identity the Audio Animator
In
order
to identify the location of the
card,
all the
following
conditions must be true. Be careful to first check
for
disk
ports
and
the presence
of other
sensitive
slot cards before
accessing these locations
.
1.
$COn*r6+$80-$COn*r6+$87 are
shadowed
to
$COn*16+$88-$COn*16+$8F
2.
$COn*r6+$84
=
$COn*16+$85
3.
$COn*l6+$86
=
$COn'16+$87
4.
$COn*16+$80
and
#$2F
~
$04
5.
$COn'16+$81 and #$28
=
$28
Digitizer Communication
Part:
AID
670
Hi Speed
8
Bit
AID
Converter
Registers:
Left
Channel
$COn*16+$84
Right Channel
$COn*l6+$86
Conversion Time:
lOus
Method:
Store register, wait 10us, read
value.
AE Digitizer File Format
The AE File Format in AA's Digitizer software attaches an ID
header with the following
information to
the
sound
file.
Files
Binary
Notes
10
$4145504D
'AEPM'
ASCII 4 byte MSB
off
Type
2
bytes
O-AE
Format
1-2:1
2
-2.6
7:1
Channel
2 bytes
O-Mono
1-Stereo
100
App. H - Programmers' Reference
r
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