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4 commits

Author SHA1 Message Date
Jens Arnold
0a2197b846 Further ARMv6 imdct optimisation, ~5.5% speedup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21884 a1c6a512-1295-4272-9138-f99709370657
 2009-07-15 20:36:31 +00:00
Jens Arnold
36eeecbe9a * Fix overlooked r12 usage possibility in mpegplayer ARM idct 
* ARM dualcore: Don't save r12 in switch_thread_core()


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21830 a1c6a512-1295-4272-9138-f99709370657
 2009-07-12 22:43:24 +00:00
Jens Arnold
02c031709c * ARM asm DSP and codec/plugin functions: Use r12 scratch register properly 
* Fix saving another unused reg in dsp code
* Use less regs in the generic ARM mpegplayer adding idct pure DC case
* Fix ARMv6 mpegplayer adding idct using an unsaved register in pure DC case


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21803 a1c6a512-1295-4272-9138-f99709370657
 2009-07-12 13:14:35 +00:00
Jens Arnold
f289b9f591 Faster idct for ARMv6. Overall mpegplayer speedup is quite minimal though. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21392 a1c6a512-1295-4272-9138-f99709370657
 2009-06-20 14:05:15 +00:00