Rafaël Carré
45c7498f59
FS#11335 by me: make ARM assembly functions thumb-friendly
...
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
2010-06-11 04:41:36 +00:00
Jens Arnold
fe0334394f
Fix byte order for Mini G2, and fix comments.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26675 a1c6a512-1295-4272-9138-f99709370657
2010-06-07 21:16:59 +00:00
Jens Arnold
7a1aca46a3
Smaller & faster grey blitting on greyscale ipods, based on an idea by Mike Sevakis. ISR speedup on all greyscale iPods except Mini 2nd Gen is ~10%. No speedup on the latter, because the serial transfer is the limiting factor.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26422 a1c6a512-1295-4272-9138-f99709370657
2010-05-30 22:24:50 +00:00
Jens Arnold
47d4c4739b
ARM asm LCD and ATA driver functions: Don't save r12 as it is a scratch reg. Saves a bit of stack and execution time.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21795 a1c6a512-1295-4272-9138-f99709370657
2009-07-11 23:43:44 +00:00
Daniel Stenberg
2acc0ac542
Updated our source code header to explicitly mention that we are GPL v2 or
...
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00
Jens Arnold
567105b219
Stop saving more registers than necessary.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16866 a1c6a512-1295-4272-9138-f99709370657
2008-03-28 18:56:50 +00:00
Jens Arnold
28cd26c471
Some cleanup for readability. No code change.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16076 a1c6a512-1295-4272-9138-f99709370657
2008-01-13 13:58:18 +00:00
Jens Arnold
41cd44caa7
Greyscale ipod lcd driver: * Assembler optimised low level functions. PP5002 targets benefit most (lcd_update() speedup >50%, and the greyscale overlay no longer makes mp3 playback skip). * Consistent brace placement style.
...
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16060 a1c6a512-1295-4272-9138-f99709370657
2008-01-12 00:59:18 +00:00
