ia64/linux-2.6.18-xen.hg

view arch/alpha/math-emu/qrnnd.S @ 647:a5bb490065f6

Fix the build after public header sync.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Aug 13 14:01:49 2008 +0100 (2008-08-13)
parents 831230e53067
children
line source
1 # Alpha 21064 __udiv_qrnnd
2 # Copyright (C) 1992, 1994, 1995, 2000 Free Software Foundation, Inc.
4 # This file is part of GCC.
6 # The GNU MP Library is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or (at your
9 # option) any later version.
11 # In addition to the permissions in the GNU General Public License, the
12 # Free Software Foundation gives you unlimited permission to link the
13 # compiled version of this file with other programs, and to distribute
14 # those programs without any restriction coming from the use of this
15 # file. (The General Public License restrictions do apply in other
16 # respects; for example, they cover modification of the file, and
17 # distribution when not linked into another program.)
19 # This file is distributed in the hope that it will be useful, but
20 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
21 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
22 # License for more details.
24 # You should have received a copy of the GNU General Public License
25 # along with GCC; see the file COPYING. If not, write to the
26 # Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
27 # MA 02111-1307, USA.
29 .set noreorder
30 .set noat
32 .text
34 .globl __udiv_qrnnd
35 .ent __udiv_qrnnd
36 __udiv_qrnnd:
37 .frame $30,0,$26,0
38 .prologue 0
40 #define cnt $2
41 #define tmp $3
42 #define rem_ptr $16
43 #define n1 $17
44 #define n0 $18
45 #define d $19
46 #define qb $20
47 #define AT $at
49 ldiq cnt,16
50 blt d,$largedivisor
52 $loop1: cmplt n0,0,tmp
53 addq n1,n1,n1
54 bis n1,tmp,n1
55 addq n0,n0,n0
56 cmpule d,n1,qb
57 subq n1,d,tmp
58 cmovne qb,tmp,n1
59 bis n0,qb,n0
60 cmplt n0,0,tmp
61 addq n1,n1,n1
62 bis n1,tmp,n1
63 addq n0,n0,n0
64 cmpule d,n1,qb
65 subq n1,d,tmp
66 cmovne qb,tmp,n1
67 bis n0,qb,n0
68 cmplt n0,0,tmp
69 addq n1,n1,n1
70 bis n1,tmp,n1
71 addq n0,n0,n0
72 cmpule d,n1,qb
73 subq n1,d,tmp
74 cmovne qb,tmp,n1
75 bis n0,qb,n0
76 cmplt n0,0,tmp
77 addq n1,n1,n1
78 bis n1,tmp,n1
79 addq n0,n0,n0
80 cmpule d,n1,qb
81 subq n1,d,tmp
82 cmovne qb,tmp,n1
83 bis n0,qb,n0
84 subq cnt,1,cnt
85 bgt cnt,$loop1
86 stq n1,0(rem_ptr)
87 bis $31,n0,$0
88 ret $31,($26),1
90 $largedivisor:
91 and n0,1,$4
93 srl n0,1,n0
94 sll n1,63,tmp
95 or tmp,n0,n0
96 srl n1,1,n1
98 and d,1,$6
99 srl d,1,$5
100 addq $5,$6,$5
102 $loop2: cmplt n0,0,tmp
103 addq n1,n1,n1
104 bis n1,tmp,n1
105 addq n0,n0,n0
106 cmpule $5,n1,qb
107 subq n1,$5,tmp
108 cmovne qb,tmp,n1
109 bis n0,qb,n0
110 cmplt n0,0,tmp
111 addq n1,n1,n1
112 bis n1,tmp,n1
113 addq n0,n0,n0
114 cmpule $5,n1,qb
115 subq n1,$5,tmp
116 cmovne qb,tmp,n1
117 bis n0,qb,n0
118 cmplt n0,0,tmp
119 addq n1,n1,n1
120 bis n1,tmp,n1
121 addq n0,n0,n0
122 cmpule $5,n1,qb
123 subq n1,$5,tmp
124 cmovne qb,tmp,n1
125 bis n0,qb,n0
126 cmplt n0,0,tmp
127 addq n1,n1,n1
128 bis n1,tmp,n1
129 addq n0,n0,n0
130 cmpule $5,n1,qb
131 subq n1,$5,tmp
132 cmovne qb,tmp,n1
133 bis n0,qb,n0
134 subq cnt,1,cnt
135 bgt cnt,$loop2
137 addq n1,n1,n1
138 addq $4,n1,n1
139 bne $6,$Odd
140 stq n1,0(rem_ptr)
141 bis $31,n0,$0
142 ret $31,($26),1
144 $Odd:
145 /* q' in n0. r' in n1 */
146 addq n1,n0,n1
148 cmpult n1,n0,tmp # tmp := carry from addq
149 subq n1,d,AT
150 addq n0,tmp,n0
151 cmovne tmp,AT,n1
153 cmpult n1,d,tmp
154 addq n0,1,AT
155 cmoveq tmp,AT,n0
156 subq n1,d,AT
157 cmoveq tmp,AT,n1
159 stq n1,0(rem_ptr)
160 bis $31,n0,$0
161 ret $31,($26),1
163 .end __udiv_qrnnd