rockbox/apps/codecs/lib/mdct_arm.S, branch master

FS#12141 by Sean Bartell

2011-06-02T14:59:15+00:00

Some of these were found with http://www.samba.org/junkcode/#findstatic. Changes of note:
* The old MDCT has been removed.
* Makefile.test files that create test programs for libatrac, libcook, and libffmpegFLAC have been removed, as they don't work. My project will have a replacement that works with all codecs.
* I've tried not to remove anything useful. CLIP_TO_15 was removed from libtremor because there's another copy (also commented) in codeclib.



git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29945 a1c6a512-1295-4272-9138-f99709370657

FS#11335 by me: make ARM assembly functions thumb-friendly

2010-06-11T04:41:36+00:00

We can't pop into pc on ARMv4t when using thumb: the T bit won't be
modified if we are returning to a thumb function
Code running on ARMv4t should use the new ldrpc / ldmpc macros instead
of ldr pc, [sp], #4 and ldm(cond) sp!, {regs, pc}
No modification on pure ARM builds and ARMv5+

Note: USE_THUMB is currently never defined, no targets can currently be
built with -mthumb, see FS#6734

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26756 a1c6a512-1295-4272-9138-f99709370657

ARM: use BX when branch to an address in register

2010-05-31T15:14:26+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26432 a1c6a512-1295-4272-9138-f99709370657

Rerrange some registers in butterfly_generic to combine some 2-word stores into 4-word stores and remove some redundant mov instructions. Shave off some additional instructions (stacking and additions) in butterfly_32 by getting butterfly_8 and butterfly_16 to do the address incrementing for us. Add a few comments.

2009-08-29T11:50:15+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22525 a1c6a512-1295-4272-9138-f99709370657

Reorder some operands to increase frequency of multiply early termination on TDMI targets, reorder some operations to try to reduce stalls.

2009-07-13T04:50:02+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21834 a1c6a512-1295-4272-9138-f99709370657

* ARM asm DSP and codec/plugin functions: Use r12 scratch register properly

2009-07-12T13:14:35+00:00

* 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

Set missing SVN properties.

2008-11-05T00:13:36+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19010 a1c6a512-1295-4272-9138-f99709370657

More files that were missed in the previous commit.

2008-09-04T18:03:30+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18413 a1c6a512-1295-4272-9138-f99709370657