rockbox/apps/codecs/demac/libdemac/vector_math16_armv6.h, branch master

Add codecs to librbcodec.

2012-04-25T20:13:20+00:00

Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius 
Tested-by: Nils Wallménius

Correction to clobber lists of several codec's inline assembly.

2010-05-29T15:00:10+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26376 a1c6a512-1295-4272-9138-f99709370657

Get rid of .rept in inline asm() blocks where possible. Using .rept causes gcc to wrongly estimate the size of the asm(), leading to (potential) compilation problems. This is necessary for the upcoming restructuring, and should fix ARMv6+ sim builds as well. No functional change.

2010-03-03T20:52:02+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25004 a1c6a512-1295-4272-9138-f99709370657

APE: Fused vector math for the filters on ARMv6. Speedup is ~2.5% for -c2000, ~7% for -c3000 and higher.

2010-02-08T21:59:24+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24569 a1c6a512-1295-4272-9138-f99709370657

Tweak the ARMv6 filter assembly a bit further.

2008-11-24T18:40:43+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19198 a1c6a512-1295-4272-9138-f99709370657

Several tweaks and cleanups: * Use .rept instead of repeated macros for repeating blocks. * Use MUL (variant) instead of MLA (variant) in the first step of the ARM scalarproduct() if there's no loop. * Unroll ARM assembler functions to 32 where not already done, plus the generic scalarproduct().

2008-11-19T21:31:33+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19144 a1c6a512-1295-4272-9138-f99709370657

Another minor improvement: better pipelining and one less register used in vector addition/ subtraction.

2008-10-07T20:52:42+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18739 a1c6a512-1295-4272-9138-f99709370657

APE: Further ARMv6 filter optimisations: Save 4 'ror's per round by utilising the shift feature of the 'pack halfword' instructions in the unaligned vector addition/ subtraction, better pipelining in the aligned scalarproduct(), and a new method to calculate the unaligned scalarproduct().

2008-10-07T19:40:17+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18736 a1c6a512-1295-4272-9138-f99709370657

Further speedup for ARMv6 by better pipelining in scalarproduct().

2008-10-03T12:30:18+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18697 a1c6a512-1295-4272-9138-f99709370657

Fix static noise on armv6.

2008-10-03T10:09:57+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18694 a1c6a512-1295-4272-9138-f99709370657