ALSA: emu10k1: fix+optimize E-MU stereo capture DSP code

Browse source

Presumably, JDC added the seemingly superfluous indirection over the
temporary register because without it he'd get only zero readings.
However, switching the X and Y operands (or using EMU32 as the A
operand in the temporary load) works just fine. Presumably a DSP bug?

The original code was also actually buggy, though: both channels used
the left volume control.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230510173917.3073107-4-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

...

This commit is contained in:

Oswald Buddenhagen 2023-05-10 19:39:06 +02:00 • committed by Takashi Iwai

parent 8cabf83c7a

commit 4102ac2975

1 changed files with 3 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

sound/pci/emu10k1/emufx.c

View file