linux_dsm_epyc7002/arch/x86/math-emu/div_small.S
Thomas Gleixner da957e111b i386: move math-emu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11 11:16:31 +02:00

48 lines
1.5 KiB
ArmAsm

.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