xref: /openbmc/linux/arch/x86/math-emu/div_small.S (revision 93dc544c)
1	.file	"div_small.S"
2/*---------------------------------------------------------------------------+
3 |  div_small.S                                                              |
4 |                                                                           |
5 | Divide a 64 bit integer by a 32 bit integer & return remainder.           |
6 |                                                                           |
7 | Copyright (C) 1992,1995                                                   |
8 |                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
9 |                       Australia.  E-mail billm@jacobi.maths.monash.edu.au |
10 |                                                                           |
11 |                                                                           |
12 +---------------------------------------------------------------------------*/
13
14/*---------------------------------------------------------------------------+
15 |    unsigned long FPU_div_small(unsigned long long *x, unsigned long y)    |
16 +---------------------------------------------------------------------------*/
17
18#include "fpu_emu.h"
19
20.text
21ENTRY(FPU_div_small)
22	pushl	%ebp
23	movl	%esp,%ebp
24
25	pushl	%esi
26
27	movl	PARAM1,%esi	/* pointer to num */
28	movl	PARAM2,%ecx	/* The denominator */
29
30	movl	4(%esi),%eax	/* Get the current num msw */
31	xorl	%edx,%edx
32	divl	%ecx
33
34	movl	%eax,4(%esi)
35
36	movl	(%esi),%eax	/* Get the num lsw */
37	divl	%ecx
38
39	movl	%eax,(%esi)
40
41	movl	%edx,%eax	/* Return the remainder in eax */
42
43	popl	%esi
44
45	leave
46	ret
47
48