Re: [hatari-devel] Falcon tests

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Many demos suffers sound speed, glitches or unsynchro between sound and effects.

It seems that the effects run too fast, or the Falcon DMA sound too slow, I don't know.

Until now, I haven't seen other problems.

I continue to test.



Le 01/06/2022 à 22:18, Nicolas Pomarède a écrit :
Le 01/06/2022 à 21:08, Laurent Sallafranque a écrit :

I've encountered something bad after the first demo I tested : 4musiK by ... me ;)

The sound is really bad.

I've bissected hatari and it seems to be related to :

650979aa06c0ba9e4ef6f7978ada0dce1c687594 is the first bad commit
commit 650979aa06c0ba9e4ef6f7978ada0dce1c687594
Author: Nicolas Pomarede <npomarede@xxxxxxxxxxxx>
Date:   Wed Mar 9 15:02:44 2022 +0100

     Use Cycles_GetClockCounterImmediate() instead of CyclesGlobalClockCounter to handle MFP updates      This will take into account the current cycles already processed when MFP is updated
     during the processing of an instruction in Cycle Exact mode

  src/cycInt.c          | 29 +++++++++++++++--------------
  src/cycles.c          | 17 +++++++++++++++++
  src/includes/cycles.h |  1 +
  src/m68000.c          |  3 ++-
  src/mfp.c             |  9 +++++++++
  5 files changed, 44 insertions(+), 15 deletions(-)

Any idea ?


thanks for bissecting, I will have a look, maybe some clocks ratios are not correct after those changes I made.


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