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author | David S. Miller <davem@davemloft.net> | 2009-09-24 22:13:11 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2009-09-24 22:13:11 (GMT) |
commit | 8b3f6af86378d0a10ca2f1ded1da124aef13b62c (patch) | |
tree | de6ca90295730343c495be8d98be8efa322140ef /arch/score/lib/ashldi3.c | |
parent | 139d6065c83071d5f66cd013a274a43699f8e2c1 (diff) | |
parent | 94e0fb086fc5663c38bbc0fe86d698be8314f82f (diff) | |
download | linux-fsl-qoriq-8b3f6af86378d0a10ca2f1ded1da124aef13b62c.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/cpc-usb/TODO
drivers/staging/cpc-usb/cpc-usb_drv.c
drivers/staging/cpc-usb/cpc.h
drivers/staging/cpc-usb/cpc_int.h
drivers/staging/cpc-usb/cpcusb.h
Diffstat (limited to 'arch/score/lib/ashldi3.c')
-rw-r--r-- | arch/score/lib/ashldi3.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/score/lib/ashldi3.c b/arch/score/lib/ashldi3.c new file mode 100644 index 0000000..15691a9 --- /dev/null +++ b/arch/score/lib/ashldi3.c @@ -0,0 +1,46 @@ +/* + * arch/score/lib/ashldi3.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include "libgcc.h" + +long long __ashldi3(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.low = 0; + w.s.high = (unsigned int) uu.s.low << -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.low >> bm; + + w.s.low = (unsigned int) uu.s.low << b; + w.s.high = ((unsigned int) uu.s.high << b) | carries; + } + + return w.ll; +} +EXPORT_SYMBOL(__ashldi3); |