diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/x86/math-emu/div_small.S | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/x86/math-emu/div_small.S')
| -rw-r--r-- | kernel/arch/x86/math-emu/div_small.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel/arch/x86/math-emu/div_small.S b/kernel/arch/x86/math-emu/div_small.S new file mode 100644 index 000000000..47099628f --- /dev/null +++ b/kernel/arch/x86/math-emu/div_small.S @@ -0,0 +1,47 @@ + .file "div_small.S" +/*---------------------------------------------------------------------------+ + | div_small.S | + | | + | Divide a 64 bit integer by a 32 bit integer & return remainder. | + | | + | Copyright (C) 1992,1995 | + | W. Metzenthen, 22 Parker St, Ormond, Vic 3163, | + | Australia. E-mail billm@jacobi.maths.monash.edu.au | + | | + | | + +---------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------+ + | unsigned long FPU_div_small(unsigned long long *x, unsigned long y) | + +---------------------------------------------------------------------------*/ + +#include "fpu_emu.h" + +.text +ENTRY(FPU_div_small) + pushl %ebp + movl %esp,%ebp + + pushl %esi + + movl PARAM1,%esi /* pointer to num */ + movl PARAM2,%ecx /* The denominator */ + + movl 4(%esi),%eax /* Get the current num msw */ + xorl %edx,%edx + divl %ecx + + movl %eax,4(%esi) + + movl (%esi),%eax /* Get the num lsw */ + divl %ecx + + movl %eax,(%esi) + + movl %edx,%eax /* Return the remainder in eax */ + + popl %esi + + leave + ret + |