Jens Arnold
69fe1ad830
Put back the insane buffer where it belongs on non-ARM, and simplify the selection.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24512 a1c6a512-1295-4272-9138-f99709370657
2010-02-04 20:20:10 +00:00
Andrew Mahone
8ed7bda64c
Move udiv32_arm.S into libdemac, as this divider is specialized for the APE codec and an optimized divider is already provided for general use in codeclib.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24506 a1c6a512-1295-4272-9138-f99709370657
2010-02-04 05:49:37 +00:00
Andrew Mahone
436f4d3a20
Improve libdemac SATURATE slightly on ARMv4/5, move filter buffers and code out of IRAM for sizes that aren't near realtime and extend udiv32_arm reciprocal table.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24376 a1c6a512-1295-4272-9138-f99709370657
2010-01-30 02:20:54 +00:00
Andrew Mahone
e76f30a57c
Improvements to specialized dividers for APE codec:
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* Use Newton-Raphson divider on ARMv5e and ARMv6, about 7% speedup on Gigabeat S.
* On ARMv4 targets using IRAM, remove insane filter buffer from IRAM, fill available IRAM with LUT of reciprocals for small divisors - speedup varies according to target and available IRAM, APE normal sample is approx. 109% RT on e200.
* Rename apps/codecs/lib/udiv32_armv4.S to apps/codecs/lib/udiv32_arm.S, which includes dividers for all ARM targets specialized for APE.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24354 a1c6a512-1295-4272-9138-f99709370657
2010-01-28 02:28:52 +00:00
Michael Sparmann
099df2fb71
Make the codecs use more IRAM on S5L870x, as we have plenty of it.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23594 a1c6a512-1295-4272-9138-f99709370657
2009-11-09 20:01:07 +00:00
Jens Arnold
3761c0108c
Branch optimisation in both C (giving hints to gcc - verified using -fprofile-arcs and gcov) and asm files. Biggest effect on coldfire (-c1000: +8%, -c2000: +5%), but ARM also profits a bit (less than 1% on ARM7TDMI, around 1% on ARM1136).
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19199 a1c6a512-1295-4272-9138-f99709370657
2008-11-24 18:40:49 +00:00
Björn Stenberg
c6b3d38a15
New makefile solution: A single invocation of 'make' to build the entire tree. Fully controlled dependencies give faster and more correct recompiles.
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Many #include lines adjusted to conform to the new standards.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19146 a1c6a512-1295-4272-9138-f99709370657
2008-11-20 11:27:31 +00:00
Jens Arnold
77934cbc96
Compile-time choice between 16 bit and 32 bit integers for the filters. 32 bit filters are faster on ARMv4 (with assembler code), so use them there. Nice speedup on PP and Gigabeat F/X.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19140 a1c6a512-1295-4272-9138-f99709370657
2008-11-19 00:34:48 +00:00
Jens Arnold
1b14167861
Centralise compile-time configuration.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19121 a1c6a512-1295-4272-9138-f99709370657
2008-11-16 17:49:37 +00:00
