EclaireXL

One for the coders, please can you check if these bugs are present?

From post on atariage...
http://atariage.com/forums/topic/256683-altirra-280-released/page-24#entry3760704
Let me report a couple of issues with POKEY chip in Altirra that I've found
1. Setting POKEY registers as follows
AUDF1=100
AUDC1=175
AUDF3=0
AUDC3=0
AUDCTL=5
SKCTL=3
should cause it to generate a narrow impulse train. It seems to work reliably
on a real hardware, however on Altirra it sometimes works correctly and
sometimes it doesn't. Sometimes the impulse train is generated but it is very
quiet. Most often no sound is produced at all.

2. Behavior of a low timer in a linked timers pair is incorrect when timers
are driven by 64 kHz or 15 kHz clock (it's OK with 1.79 MHz clock).
For example
AUDF1=33
AUDC1=170
AUDF2=1
AUDC2=0
AUDCTL=16
SKCTL=3
the generated sound is wrong and is disturbed by keystrokes. This happens only
when timer emulation is in deferred mode. Forcing it to go out of deferred
mode by enabling interrupts for timer 1 fixes the problem.

3. The pitch of a square wave generated with the following settings
AUDF1=99
AUDC1=170
AUDF2=199
AUDC2=0
AUDCTL=0
SKCTL=139
is one octave lower than it should be.

4. Altirra doesn't implement additional two-cycle delay when timers 1 and 2
are linked and two-tone mode is enabled at the same time.
For example, with the following settings:
AUDF1=10
AUDC1=0
AUDF2=0
AUDC2=136
AUDCTL=208
SKCTL=139
the pitch is too high by almost 2 semitones.