devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Save a couple bytes in set_irq_level on Coldfire. Should add up to something.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12912 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2007-03-25 20:45:08 +00:00
parent 465820da22
commit 8f04faef91
1 changed files with 4 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

7
firmware/target/coldfire/system-target.h
View file

@ -71,9 +71,10 @@ static inline int set_irq_level(int level)
{
int oldlevel;
/* Read the old level and set the new one */
asm volatile ("move.w %%sr,%0\n"
"or.l #0x2000,%1\n"
"move.w %1,%%sr\n" : "=d" (oldlevel), "+d" (level) : );
asm volatile ("move.w %%sr, %0 \n"
"bset.l #13, %1 \n" /* Keep supervisor state set */
"move.w %1, %%sr \n"
: "=d"(oldlevel), "+d"(level));
return oldlevel;
}