xref: /linux/arch/x86/math-emu/div_small.S (revision c79c3c34f75d72a066e292b10aa50fc758c97c89)
1/* SPDX-License-Identifier: GPL-2.0 */
2	.file	"div_small.S"
3/*---------------------------------------------------------------------------+
4 |  div_small.S                                                              |
5 |                                                                           |
6 | Divide a 64 bit integer by a 32 bit integer & return remainder.           |
7 |                                                                           |
8 | Copyright (C) 1992,1995                                                   |
9 |                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
10 |                       Australia.  E-mail billm@jacobi.maths.monash.edu.au |
11 |                                                                           |
12 |                                                                           |
13 +---------------------------------------------------------------------------*/
14
15/*---------------------------------------------------------------------------+
16 |    unsigned long FPU_div_small(unsigned long long *x, unsigned long y)    |
17 +---------------------------------------------------------------------------*/
18
19#include "fpu_emu.h"
20
21.text
22SYM_FUNC_START(FPU_div_small)
23	pushl	%ebp
24	movl	%esp,%ebp
25
26	pushl	%esi
27
28	movl	PARAM1,%esi	/* pointer to num */
29	movl	PARAM2,%ecx	/* The denominator */
30
31	movl	4(%esi),%eax	/* Get the current num msw */
32	xorl	%edx,%edx
33	divl	%ecx
34
35	movl	%eax,4(%esi)
36
37	movl	(%esi),%eax	/* Get the num lsw */
38	divl	%ecx
39
40	movl	%eax,(%esi)
41
42	movl	%edx,%eax	/* Return the remainder in eax */
43
44	popl	%esi
45
46	leave
47	ret
48SYM_FUNC_END(FPU_div_small)
49