diff options
author | Nathan Scott <nathans@sgi.com> | 2006-06-20 14:56:23 +1000 |
---|---|---|
committer | Nathan Scott <nathans@sgi.com> | 2006-06-20 14:56:23 +1000 |
commit | 98174e46974323e4941c72e46345f7277755e146 (patch) | |
tree | c4644c8f38a519cfb3929d1175fc7107eefe48b9 /arch/mips/lib/lshrdi3.c | |
parent | d8ce75324135ea7100124c1fff4ec5090a350607 (diff) | |
parent | 25f42b6af09e34c3f92107b36b5aa6edc2fdba2f (diff) |
Merge HEAD from ../linux-2.6
Diffstat (limited to 'arch/mips/lib/lshrdi3.c')
-rw-r--r-- | arch/mips/lib/lshrdi3.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/mips/lib/lshrdi3.c b/arch/mips/lib/lshrdi3.c new file mode 100644 index 00000000000..dcf8d6810b7 --- /dev/null +++ b/arch/mips/lib/lshrdi3.c @@ -0,0 +1,29 @@ +#include <linux/module.h> + +#include "libgcc.h" + +long long __lshrdi3(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 = 0; + w.s.low = (unsigned int) uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = (unsigned int) uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} + +EXPORT_SYMBOL(__lshrdi3); |