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TOMOYO Linux Cross Reference
Linux/arch/sparc/lib/divdi3.S

Version: ~ [ linux-6.11-rc3 ] ~ [ linux-6.10.4 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.45 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.104 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.164 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.223 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.281 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.319 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /arch/sparc/lib/divdi3.S (Version linux-6.11-rc3) and /arch/sparc/lib/divdi3.S (Version linux-6.6.45)


  1 /* SPDX-License-Identifier: GPL-2.0-or-later *      1 /* SPDX-License-Identifier: GPL-2.0-or-later */
  2 /* Copyright (C) 1989, 1992, 1993, 1994, 1995       2 /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
  3                                                     3 
  4 This file is part of GNU CC.                        4 This file is part of GNU CC.
  5                                                     5 
  6  */                                                 6  */
  7                                                     7 
  8 #include <linux/export.h>                           8 #include <linux/export.h>
  9         .text                                       9         .text
 10         .align 4                                   10         .align 4
 11         .globl __divdi3                            11         .globl __divdi3
 12 __divdi3:                                          12 __divdi3:
 13         save %sp,-104,%sp                          13         save %sp,-104,%sp
 14         cmp %i0,0                                  14         cmp %i0,0
 15         bge .LL40                                  15         bge .LL40
 16         mov 0,%l4                                  16         mov 0,%l4
 17         mov -1,%l4                                 17         mov -1,%l4
 18         sub %g0,%i1,%o0                            18         sub %g0,%i1,%o0
 19         mov %o0,%o5                                19         mov %o0,%o5
 20         subcc %g0,%o0,%g0                          20         subcc %g0,%o0,%g0
 21         sub %g0,%i0,%o0                            21         sub %g0,%i0,%o0
 22         subx %o0,0,%o4                             22         subx %o0,0,%o4
 23         mov %o4,%i0                                23         mov %o4,%i0
 24         mov %o5,%i1                                24         mov %o5,%i1
 25 .LL40:                                             25 .LL40:
 26         cmp %i2,0                                  26         cmp %i2,0
 27         bge .LL84                                  27         bge .LL84
 28         mov %i3,%o4                                28         mov %i3,%o4
 29         xnor %g0,%l4,%l4                           29         xnor %g0,%l4,%l4
 30         sub %g0,%i3,%o0                            30         sub %g0,%i3,%o0
 31         mov %o0,%o3                                31         mov %o0,%o3
 32         subcc %g0,%o0,%g0                          32         subcc %g0,%o0,%g0
 33         sub %g0,%i2,%o0                            33         sub %g0,%i2,%o0
 34         subx %o0,0,%o2                             34         subx %o0,0,%o2
 35         mov %o2,%i2                                35         mov %o2,%i2
 36         mov %o3,%i3                                36         mov %o3,%i3
 37         mov %i3,%o4                                37         mov %i3,%o4
 38 .LL84:                                             38 .LL84:
 39         cmp %i2,0                                  39         cmp %i2,0
 40         bne .LL45                                  40         bne .LL45
 41         mov %i1,%i3                                41         mov %i1,%i3
 42         cmp %o4,%i0                                42         cmp %o4,%i0
 43         bleu .LL46                                 43         bleu .LL46
 44         mov %i3,%o1                                44         mov %i3,%o1
 45         mov     32,%g1                             45         mov     32,%g1
 46         subcc   %i0,%o4,%g0                        46         subcc   %i0,%o4,%g0
 47 1:      bcs     5f                                 47 1:      bcs     5f
 48          addxcc %o1,%o1,%o1     ! shift n1n0 a     48          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
 49         sub     %i0,%o4,%i0     ! this kills m     49         sub     %i0,%o4,%i0     ! this kills msb of n
 50         addx    %i0,%i0,%i0     ! so this cann     50         addx    %i0,%i0,%i0     ! so this cannot give carry
 51         subcc   %g1,1,%g1                          51         subcc   %g1,1,%g1
 52 2:      bne     1b                                 52 2:      bne     1b
 53          subcc  %i0,%o4,%g0                        53          subcc  %i0,%o4,%g0
 54         bcs     3f                                 54         bcs     3f
 55          addxcc %o1,%o1,%o1     ! shift n1n0 a     55          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
 56         b       3f                                 56         b       3f
 57          sub    %i0,%o4,%i0     ! this kills m     57          sub    %i0,%o4,%i0     ! this kills msb of n
 58 4:      sub     %i0,%o4,%i0                        58 4:      sub     %i0,%o4,%i0
 59 5:      addxcc  %i0,%i0,%i0                        59 5:      addxcc  %i0,%i0,%i0
 60         bcc     2b                                 60         bcc     2b
 61          subcc  %g1,1,%g1                          61          subcc  %g1,1,%g1
 62 ! Got carry from n.  Subtract next step to can     62 ! Got carry from n.  Subtract next step to cancel this carry.
 63         bne     4b                                 63         bne     4b
 64          addcc  %o1,%o1,%o1     ! shift n1n0 a     64          addcc  %o1,%o1,%o1     ! shift n1n0 and a 0-bit in lsb
 65         sub     %i0,%o4,%i0                        65         sub     %i0,%o4,%i0
 66 3:      xnor    %o1,0,%o1                          66 3:      xnor    %o1,0,%o1
 67         b .LL50                                    67         b .LL50
 68         mov 0,%o2                                  68         mov 0,%o2
 69 .LL46:                                             69 .LL46:
 70         cmp %o4,0                                  70         cmp %o4,0
 71         bne .LL85                                  71         bne .LL85
 72         mov %i0,%o2                                72         mov %i0,%o2
 73         mov 1,%o0                                  73         mov 1,%o0
 74         mov 0,%o1                                  74         mov 0,%o1
 75         wr %g0, 0, %y                              75         wr %g0, 0, %y
 76         udiv %o0, %o1, %o0                         76         udiv %o0, %o1, %o0
 77         mov %o0,%o4                                77         mov %o0,%o4
 78         mov %i0,%o2                                78         mov %i0,%o2
 79 .LL85:                                             79 .LL85:
 80         mov 0,%g3                                  80         mov 0,%g3
 81         mov     32,%g1                             81         mov     32,%g1
 82         subcc   %g3,%o4,%g0                        82         subcc   %g3,%o4,%g0
 83 1:      bcs     5f                                 83 1:      bcs     5f
 84          addxcc %o2,%o2,%o2     ! shift n1n0 a     84          addxcc %o2,%o2,%o2     ! shift n1n0 and a q-bit in lsb
 85         sub     %g3,%o4,%g3     ! this kills m     85         sub     %g3,%o4,%g3     ! this kills msb of n
 86         addx    %g3,%g3,%g3     ! so this cann     86         addx    %g3,%g3,%g3     ! so this cannot give carry
 87         subcc   %g1,1,%g1                          87         subcc   %g1,1,%g1
 88 2:      bne     1b                                 88 2:      bne     1b
 89          subcc  %g3,%o4,%g0                        89          subcc  %g3,%o4,%g0
 90         bcs     3f                                 90         bcs     3f
 91          addxcc %o2,%o2,%o2     ! shift n1n0 a     91          addxcc %o2,%o2,%o2     ! shift n1n0 and a q-bit in lsb
 92         b       3f                                 92         b       3f
 93          sub    %g3,%o4,%g3     ! this kills m     93          sub    %g3,%o4,%g3     ! this kills msb of n
 94 4:      sub     %g3,%o4,%g3                        94 4:      sub     %g3,%o4,%g3
 95 5:      addxcc  %g3,%g3,%g3                        95 5:      addxcc  %g3,%g3,%g3
 96         bcc     2b                                 96         bcc     2b
 97          subcc  %g1,1,%g1                          97          subcc  %g1,1,%g1
 98 ! Got carry from n.  Subtract next step to can     98 ! Got carry from n.  Subtract next step to cancel this carry.
 99         bne     4b                                 99         bne     4b
100          addcc  %o2,%o2,%o2     ! shift n1n0 a    100          addcc  %o2,%o2,%o2     ! shift n1n0 and a 0-bit in lsb
101         sub     %g3,%o4,%g3                       101         sub     %g3,%o4,%g3
102 3:      xnor    %o2,0,%o2                         102 3:      xnor    %o2,0,%o2
103         mov %g3,%i0                               103         mov %g3,%i0
104         mov %i3,%o1                               104         mov %i3,%o1
105         mov     32,%g1                            105         mov     32,%g1
106         subcc   %i0,%o4,%g0                       106         subcc   %i0,%o4,%g0
107 1:      bcs     5f                                107 1:      bcs     5f
108          addxcc %o1,%o1,%o1     ! shift n1n0 a    108          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
109         sub     %i0,%o4,%i0     ! this kills m    109         sub     %i0,%o4,%i0     ! this kills msb of n
110         addx    %i0,%i0,%i0     ! so this cann    110         addx    %i0,%i0,%i0     ! so this cannot give carry
111         subcc   %g1,1,%g1                         111         subcc   %g1,1,%g1
112 2:      bne     1b                                112 2:      bne     1b
113          subcc  %i0,%o4,%g0                       113          subcc  %i0,%o4,%g0
114         bcs     3f                                114         bcs     3f
115          addxcc %o1,%o1,%o1     ! shift n1n0 a    115          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
116         b       3f                                116         b       3f
117          sub    %i0,%o4,%i0     ! this kills m    117          sub    %i0,%o4,%i0     ! this kills msb of n
118 4:      sub     %i0,%o4,%i0                       118 4:      sub     %i0,%o4,%i0
119 5:      addxcc  %i0,%i0,%i0                       119 5:      addxcc  %i0,%i0,%i0
120         bcc     2b                                120         bcc     2b
121          subcc  %g1,1,%g1                         121          subcc  %g1,1,%g1
122 ! Got carry from n.  Subtract next step to can    122 ! Got carry from n.  Subtract next step to cancel this carry.
123         bne     4b                                123         bne     4b
124          addcc  %o1,%o1,%o1     ! shift n1n0 a    124          addcc  %o1,%o1,%o1     ! shift n1n0 and a 0-bit in lsb
125         sub     %i0,%o4,%i0                       125         sub     %i0,%o4,%i0
126 3:      xnor    %o1,0,%o1                         126 3:      xnor    %o1,0,%o1
127         b .LL86                                   127         b .LL86
128         mov %o1,%l1                               128         mov %o1,%l1
129 .LL45:                                            129 .LL45:
130         cmp %i2,%i0                               130         cmp %i2,%i0
131         bleu .LL51                                131         bleu .LL51
132         sethi %hi(65535),%o0                      132         sethi %hi(65535),%o0
133         b .LL78                                   133         b .LL78
134         mov 0,%o1                                 134         mov 0,%o1
135 .LL51:                                            135 .LL51:
136         or %o0,%lo(65535),%o0                     136         or %o0,%lo(65535),%o0
137         cmp %i2,%o0                               137         cmp %i2,%o0
138         bgu .LL58                                 138         bgu .LL58
139         mov %i2,%o1                               139         mov %i2,%o1
140         cmp %i2,256                               140         cmp %i2,256
141         addx %g0,-1,%o0                           141         addx %g0,-1,%o0
142         b .LL64                                   142         b .LL64
143         and %o0,8,%o2                             143         and %o0,8,%o2
144 .LL58:                                            144 .LL58:
145         sethi %hi(16777215),%o0                   145         sethi %hi(16777215),%o0
146         or %o0,%lo(16777215),%o0                  146         or %o0,%lo(16777215),%o0
147         cmp %i2,%o0                               147         cmp %i2,%o0
148         bgu .LL64                                 148         bgu .LL64
149         mov 24,%o2                                149         mov 24,%o2
150         mov 16,%o2                                150         mov 16,%o2
151 .LL64:                                            151 .LL64:
152         srl %o1,%o2,%o0                           152         srl %o1,%o2,%o0
153         sethi %hi(__clz_tab),%o1                  153         sethi %hi(__clz_tab),%o1
154         or %o1,%lo(__clz_tab),%o1                 154         or %o1,%lo(__clz_tab),%o1
155         ldub [%o0+%o1],%o0                        155         ldub [%o0+%o1],%o0
156         add %o0,%o2,%o0                           156         add %o0,%o2,%o0
157         mov 32,%o1                                157         mov 32,%o1
158         subcc %o1,%o0,%o3                         158         subcc %o1,%o0,%o3
159         bne,a .LL72                               159         bne,a .LL72
160         sub %o1,%o3,%o1                           160         sub %o1,%o3,%o1
161         cmp %i0,%i2                               161         cmp %i0,%i2
162         bgu .LL74                                 162         bgu .LL74
163         cmp %i3,%o4                               163         cmp %i3,%o4
164         blu .LL78                                 164         blu .LL78
165         mov 0,%o1                                 165         mov 0,%o1
166 .LL74:                                            166 .LL74:
167         b .LL78                                   167         b .LL78
168         mov 1,%o1                                 168         mov 1,%o1
169 .LL72:                                            169 .LL72:
170         sll %i2,%o3,%o2                           170         sll %i2,%o3,%o2
171         srl %o4,%o1,%o0                           171         srl %o4,%o1,%o0
172         or %o2,%o0,%i2                            172         or %o2,%o0,%i2
173         sll %o4,%o3,%o4                           173         sll %o4,%o3,%o4
174         srl %i0,%o1,%o2                           174         srl %i0,%o1,%o2
175         sll %i0,%o3,%o0                           175         sll %i0,%o3,%o0
176         srl %i3,%o1,%o1                           176         srl %i3,%o1,%o1
177         or %o0,%o1,%i0                            177         or %o0,%o1,%i0
178         sll %i3,%o3,%i3                           178         sll %i3,%o3,%i3
179         mov %i0,%o1                               179         mov %i0,%o1
180         mov     32,%g1                            180         mov     32,%g1
181         subcc   %o2,%i2,%g0                       181         subcc   %o2,%i2,%g0
182 1:      bcs     5f                                182 1:      bcs     5f
183          addxcc %o1,%o1,%o1     ! shift n1n0 a    183          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
184         sub     %o2,%i2,%o2     ! this kills m    184         sub     %o2,%i2,%o2     ! this kills msb of n
185         addx    %o2,%o2,%o2     ! so this cann    185         addx    %o2,%o2,%o2     ! so this cannot give carry
186         subcc   %g1,1,%g1                         186         subcc   %g1,1,%g1
187 2:      bne     1b                                187 2:      bne     1b
188          subcc  %o2,%i2,%g0                       188          subcc  %o2,%i2,%g0
189         bcs     3f                                189         bcs     3f
190          addxcc %o1,%o1,%o1     ! shift n1n0 a    190          addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
191         b       3f                                191         b       3f
192          sub    %o2,%i2,%o2     ! this kills m    192          sub    %o2,%i2,%o2     ! this kills msb of n
193 4:      sub     %o2,%i2,%o2                       193 4:      sub     %o2,%i2,%o2
194 5:      addxcc  %o2,%o2,%o2                       194 5:      addxcc  %o2,%o2,%o2
195         bcc     2b                                195         bcc     2b
196          subcc  %g1,1,%g1                         196          subcc  %g1,1,%g1
197 ! Got carry from n.  Subtract next step to can    197 ! Got carry from n.  Subtract next step to cancel this carry.
198         bne     4b                                198         bne     4b
199          addcc  %o1,%o1,%o1     ! shift n1n0 a    199          addcc  %o1,%o1,%o1     ! shift n1n0 and a 0-bit in lsb
200         sub     %o2,%i2,%o2                       200         sub     %o2,%i2,%o2
201 3:      xnor    %o1,0,%o1                         201 3:      xnor    %o1,0,%o1
202         mov %o2,%i0                               202         mov %o2,%i0
203         wr      %g0,%o1,%y      ! SPARC has 0-    203         wr      %g0,%o1,%y      ! SPARC has 0-3 delay insn after a wr
204         sra     %o4,31,%g2      ! Do not move     204         sra     %o4,31,%g2      ! Do not move this insn
205         and     %o1,%g2,%g2     ! Do not move     205         and     %o1,%g2,%g2     ! Do not move this insn
206         andcc   %g0,0,%g1       ! Do not move     206         andcc   %g0,0,%g1       ! Do not move this insn
207         mulscc  %g1,%o4,%g1                       207         mulscc  %g1,%o4,%g1
208         mulscc  %g1,%o4,%g1                       208         mulscc  %g1,%o4,%g1
209         mulscc  %g1,%o4,%g1                       209         mulscc  %g1,%o4,%g1
210         mulscc  %g1,%o4,%g1                       210         mulscc  %g1,%o4,%g1
211         mulscc  %g1,%o4,%g1                       211         mulscc  %g1,%o4,%g1
212         mulscc  %g1,%o4,%g1                       212         mulscc  %g1,%o4,%g1
213         mulscc  %g1,%o4,%g1                       213         mulscc  %g1,%o4,%g1
214         mulscc  %g1,%o4,%g1                       214         mulscc  %g1,%o4,%g1
215         mulscc  %g1,%o4,%g1                       215         mulscc  %g1,%o4,%g1
216         mulscc  %g1,%o4,%g1                       216         mulscc  %g1,%o4,%g1
217         mulscc  %g1,%o4,%g1                       217         mulscc  %g1,%o4,%g1
218         mulscc  %g1,%o4,%g1                       218         mulscc  %g1,%o4,%g1
219         mulscc  %g1,%o4,%g1                       219         mulscc  %g1,%o4,%g1
220         mulscc  %g1,%o4,%g1                       220         mulscc  %g1,%o4,%g1
221         mulscc  %g1,%o4,%g1                       221         mulscc  %g1,%o4,%g1
222         mulscc  %g1,%o4,%g1                       222         mulscc  %g1,%o4,%g1
223         mulscc  %g1,%o4,%g1                       223         mulscc  %g1,%o4,%g1
224         mulscc  %g1,%o4,%g1                       224         mulscc  %g1,%o4,%g1
225         mulscc  %g1,%o4,%g1                       225         mulscc  %g1,%o4,%g1
226         mulscc  %g1,%o4,%g1                       226         mulscc  %g1,%o4,%g1
227         mulscc  %g1,%o4,%g1                       227         mulscc  %g1,%o4,%g1
228         mulscc  %g1,%o4,%g1                       228         mulscc  %g1,%o4,%g1
229         mulscc  %g1,%o4,%g1                       229         mulscc  %g1,%o4,%g1
230         mulscc  %g1,%o4,%g1                       230         mulscc  %g1,%o4,%g1
231         mulscc  %g1,%o4,%g1                       231         mulscc  %g1,%o4,%g1
232         mulscc  %g1,%o4,%g1                       232         mulscc  %g1,%o4,%g1
233         mulscc  %g1,%o4,%g1                       233         mulscc  %g1,%o4,%g1
234         mulscc  %g1,%o4,%g1                       234         mulscc  %g1,%o4,%g1
235         mulscc  %g1,%o4,%g1                       235         mulscc  %g1,%o4,%g1
236         mulscc  %g1,%o4,%g1                       236         mulscc  %g1,%o4,%g1
237         mulscc  %g1,%o4,%g1                       237         mulscc  %g1,%o4,%g1
238         mulscc  %g1,%o4,%g1                       238         mulscc  %g1,%o4,%g1
239         mulscc  %g1,0,%g1                         239         mulscc  %g1,0,%g1
240         add     %g1,%g2,%o0                       240         add     %g1,%g2,%o0
241         rd      %y,%o2                            241         rd      %y,%o2
242         cmp %o0,%i0                               242         cmp %o0,%i0
243         bgu,a .LL78                               243         bgu,a .LL78
244         add %o1,-1,%o1                            244         add %o1,-1,%o1
245         bne,a .LL50                               245         bne,a .LL50
246         mov 0,%o2                                 246         mov 0,%o2
247         cmp %o2,%i3                               247         cmp %o2,%i3
248         bleu .LL50                                248         bleu .LL50
249         mov 0,%o2                                 249         mov 0,%o2
250         add %o1,-1,%o1                            250         add %o1,-1,%o1
251 .LL78:                                            251 .LL78:
252         mov 0,%o2                                 252         mov 0,%o2
253 .LL50:                                            253 .LL50:
254         mov %o1,%l1                               254         mov %o1,%l1
255 .LL86:                                            255 .LL86:
256         mov %o2,%l0                               256         mov %o2,%l0
257         mov %l0,%i0                               257         mov %l0,%i0
258         mov %l1,%i1                               258         mov %l1,%i1
259         cmp %l4,0                                 259         cmp %l4,0
260         be .LL81                                  260         be .LL81
261         sub %g0,%i1,%o0                           261         sub %g0,%i1,%o0
262         mov %o0,%l3                               262         mov %o0,%l3
263         subcc %g0,%o0,%g0                         263         subcc %g0,%o0,%g0
264         sub %g0,%i0,%o0                           264         sub %g0,%i0,%o0
265         subx %o0,0,%l2                            265         subx %o0,0,%l2
266         mov %l2,%i0                               266         mov %l2,%i0
267         mov %l3,%i1                               267         mov %l3,%i1
268 .LL81:                                            268 .LL81:
269         ret                                       269         ret
270         restore                                   270         restore
271 EXPORT_SYMBOL(__divdi3)                           271 EXPORT_SYMBOL(__divdi3)
                                                      

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