1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* Written by Ulrich Drepper <drepper@cygnus.com>.
* Based on e_remainder by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
#include <libm-alias-double.h>
#define PARMS 4 /* no space for saved regs */
#define DVDND PARMS
#define DVSOR DVDND+8
#define QUOP DVSOR+8
.text
ENTRY (__remquo)
fldl DVSOR(%esp)
fldl DVDND(%esp)
1: fprem1
fstsw %ax
sahf
jp 1b
fstp %st(1)
/* Compute the congruent of the quotient. */
movl %eax, %ecx
shrl $8, %eax
shrl $12, %ecx
andl $4, %ecx
andl $3, %eax
orl %eax, %ecx
leal (%ecx,%ecx,2),%ecx
movl $0xef2a60, %eax
shrl %cl, %eax
andl $7, %eax
movl QUOP(%esp), %ecx
movl DVDND+4(%esp), %edx
xorl DVSOR+4(%esp), %edx
testl $0x80000000, %edx
jz 1f
negl %eax
1: movl %eax, (%ecx)
ret
END (__remquo)
libm_alias_double (__remquo, remquo)
|
