diff options
author | 2010-10-30 22:16:56 +0200 | |
---|---|---|
committer | 2010-10-30 22:16:56 +0200 | |
commit | f1e095f1d206b81b44160f41278ce5c78641e9b7 (patch) | |
tree | bd293d46d2d3e4cdf435a22ddb2877c6ba1b8acc /arch/microblaze/lib/ashrdi3.c | |
parent | telephony: fix return value (diff) | |
parent | Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify (diff) | |
download | linux-dev-f1e095f1d206b81b44160f41278ce5c78641e9b7.tar.xz linux-dev-f1e095f1d206b81b44160f41278ce5c78641e9b7.zip |
Merge branch 'master' into for-next
Diffstat (limited to 'arch/microblaze/lib/ashrdi3.c')
-rw-r--r-- | arch/microblaze/lib/ashrdi3.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/microblaze/lib/ashrdi3.c b/arch/microblaze/lib/ashrdi3.c new file mode 100644 index 000000000000..c884a912b660 --- /dev/null +++ b/arch/microblaze/lib/ashrdi3.c @@ -0,0 +1,31 @@ +#include <linux/module.h> + +#include "libgcc.h" + +long long __ashrdi3(long long u, word_type b) +{ + DWunion uu, w; + word_type bm; + + if (b == 0) + return u; + + uu.ll = u; + bm = 32 - b; + + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = + uu.s.high >> 31; + w.s.low = uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} + +EXPORT_SYMBOL(__ashrdi3); |