linux/arch/x86/math-emu/div_small.S
Peter Zijlstra f94909ceb1 x86: Prepare asm files for straight-line-speculation
Replace all ret/retq instructions with RET in preparation of making
RET a macro. Since AS is case insensitive it's a big no-op without
RET defined.

  find arch/x86/ -name \*.S | while read file
  do
	sed -i 's/\<ret[q]*\>/RET/' $file
  done

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211204134907.905503893@infradead.org
2021-12-08 12:25:37 +01:00

49 lines
1.6 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
.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
SYM_FUNC_START(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
SYM_FUNC_END(FPU_div_small)