Quelle  div_small.S   Sprache: Sparc

/* 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)