Jens Arnold
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66c0cf2eb1
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Tweak the ARMv6 filter assembly a bit further.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19198 a1c6a512-1295-4272-9138-f99709370657
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2008-11-24 18:40:43 +00:00 |
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Jens Arnold
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2a5053f58c
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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().
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19144 a1c6a512-1295-4272-9138-f99709370657
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2008-11-19 21:31:33 +00:00 |
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Jens Arnold
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dd7cacdc88
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Another minor improvement: better pipelining and one less register used in vector addition/ subtraction.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18739 a1c6a512-1295-4272-9138-f99709370657
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2008-10-07 20:52:42 +00:00 |
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Jens Arnold
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6b84f60046
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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().
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18736 a1c6a512-1295-4272-9138-f99709370657
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2008-10-07 19:40:17 +00:00 |
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Jens Arnold
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d456460707
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Further speedup for ARMv6 by better pipelining in scalarproduct().
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18697 a1c6a512-1295-4272-9138-f99709370657
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2008-10-03 12:30:18 +00:00 |
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Jens Arnold
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67554591d9
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Fix static noise on armv6.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18694 a1c6a512-1295-4272-9138-f99709370657
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2008-10-03 10:09:57 +00:00 |
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Jens Arnold
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46bf6bd493
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Add preliminary ARMv5te optimisations (verified working, but can probably be sped up further), and fix a comment in the ARMv6 code.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18693 a1c6a512-1295-4272-9138-f99709370657
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2008-10-03 09:33:36 +00:00 |
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Jens Arnold
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6fcf2765dd
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Add armv6 specific asm code for the APE filters, speeding up -c2000..-c5000 a bit on Gigabeat S.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18692 a1c6a512-1295-4272-9138-f99709370657
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2008-10-03 08:54:34 +00:00 |
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