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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: exu_sub_n2.s | |
5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
7 | * | |
8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; version 2 of the License. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | * For the avoidance of doubt, and except that if any non-GPL license | |
24 | * choice is available it will apply instead, Sun elects to use only | |
25 | * the General Public License version 2 (GPLv2) at this time for any | |
26 | * software where a choice of GPL license versions is made | |
27 | * available with the language indicating that GPLv2 or any later version | |
28 | * may be used, or where a choice of which version of the GPL is applied is | |
29 | * otherwise unspecified. | |
30 | * | |
31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
32 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
33 | * have any questions. | |
34 | * | |
35 | * | |
36 | * ========== Copyright Header End ============================================ | |
37 | */ | |
38 | #define NUM_REG_CASES 17 | |
39 | #define NUM_IMMED_CASES 5 | |
40 | ||
41 | ! for tsubcctv cases | |
42 | #define H_T0_Tag_Overflow | |
43 | #define My_T0_Tag_Overflow \ | |
44 | rdpr %tstate, %i1; \ | |
45 | rdpr %tt, %i1; \ | |
46 | rdpr %tpc, %i0; \ | |
47 | rdpr %tnpc, %i1; \ | |
48 | done; \ | |
49 | nop; | |
50 | ||
51 | /*******************************************************/ | |
52 | #include "hboot.s" | |
53 | ||
54 | .global main | |
55 | main: | |
56 | th_fork(th_main,%l0) ! start up to four threads. | |
57 | ! All threads do the same thing. No need to run more than one core, | |
58 | ! and no need to differentiate the threads because nobody stores | |
59 | ! anything. | |
60 | th_main_0: | |
61 | th_main_1: | |
62 | th_main_2: | |
63 | th_main_3: | |
64 | !************************** | |
65 | ! Operand2 as a register | |
66 | !************************** | |
67 | set rs2_data,%g1 | |
68 | add %g0,NUM_REG_CASES,%l3 | |
69 | rs2_loop: | |
70 | ldx [%g1],%l1 | |
71 | ldx [%g1+8],%l2 | |
72 | ||
73 | ! ccr clear | |
74 | wr %g0,%g0,%ccr | |
75 | sub %l1,%l2,%l4 | |
76 | ||
77 | wr %g0,%g0,%ccr | |
78 | subc %l1,%l2,%l5 | |
79 | ||
80 | wr %g0,%g0,%ccr | |
81 | subcc %l1,%l2,%l6 | |
82 | ||
83 | wr %g0,%g0,%ccr | |
84 | subccc %l1,%l2,%l7 | |
85 | ||
86 | wr %g0,%g0,%ccr | |
87 | tsubcc %l1,%l2,%l0 | |
88 | ||
89 | wr %g0,%g0,%ccr | |
90 | tsubcctv %l1,%l2,%l4 | |
91 | ||
92 | ! icc.c set | |
93 | wr %g0,0x1,%ccr | |
94 | sub %l1,%l2,%l6 | |
95 | ||
96 | wr %g0,0x1,%ccr | |
97 | subc %l1,%l2,%l7 | |
98 | ||
99 | wr %g0,0x1,%ccr | |
100 | subcc %l1,%l2,%l0 | |
101 | ||
102 | wr %g0,0x1,%ccr | |
103 | subccc %l1,%l2,%l4 | |
104 | ||
105 | wr %g0,0x1,%ccr | |
106 | tsubcc %l1,%l2,%l5 | |
107 | ||
108 | wr %g0,0x1,%ccr | |
109 | tsubcctv %l1,%l2,%l6 | |
110 | ||
111 | ! icc.c clear, xcc.c set | |
112 | wr %g0,0x10,%ccr | |
113 | sub %l1,%l2,%l0 | |
114 | ||
115 | wr %g0,0x10,%ccr | |
116 | subc %l1,%l2,%l7 | |
117 | ||
118 | wr %g0,0x10,%ccr | |
119 | subcc %l1,%l2,%l6 | |
120 | ||
121 | wr %g0,0x10,%ccr | |
122 | subccc %l1,%l2,%l5 | |
123 | ||
124 | wr %g0,0x10,%ccr | |
125 | tsubcc %l1,%l2,%l4 | |
126 | ||
127 | wr %g0,0x10,%ccr | |
128 | tsubcctv %l1,%l2,%l0 | |
129 | ||
130 | ! icc.c set, xcc.c set | |
131 | wr %g0,0x11,%ccr | |
132 | sub %l1,%l2,%l4 | |
133 | ||
134 | wr %g0,0x11,%ccr | |
135 | subc %l1,%l2,%l6 | |
136 | ||
137 | wr %g0,0x11,%ccr | |
138 | subcc %l1,%l2,%l0 | |
139 | ||
140 | wr %g0,0x11,%ccr | |
141 | subccc %l1,%l2,%l5 | |
142 | ||
143 | wr %g0,0x11,%ccr | |
144 | tsubcc %l1,%l2,%l7 | |
145 | ||
146 | wr %g0,0x11,%ccr | |
147 | tsubcctv %l1,%l2,%l6 | |
148 | ||
149 | sub %l3,0x1,%l3 | |
150 | brnz,pt %l3,rs2_loop | |
151 | add %g1,0x10,%g1 ! move operand pointer | |
152 | ||
153 | !************************** | |
154 | ! Operand2 as immediate | |
155 | !************************** | |
156 | ! hit a all cases of tsubcc bits 1:0 | |
157 | set tsub_data,%g1 | |
158 | add %g0,4,%l3 | |
159 | tsub_loop: | |
160 | ldx [%g1],%l1 | |
161 | ||
162 | tsubcc %l1,0x0,%l2 | |
163 | tsubcc %l1,0x1,%l2 | |
164 | tsubcc %l1,0x2,%l2 | |
165 | tsubcc %l1,0x3,%l2 | |
166 | ||
167 | tsubcctv %l1,0x0,%l2 | |
168 | tsubcctv %l1,0x1,%l2 | |
169 | tsubcctv %l1,0x2,%l2 | |
170 | tsubcctv %l1,0x3,%l2 | |
171 | ||
172 | sub %l3,0x1,%l3 | |
173 | brnz,pt %l3,tsub_loop | |
174 | add %g1,8,%g1 ! move operand pointer | |
175 | ||
176 | ||
177 | set immed_data,%g1 | |
178 | add %g0,NUM_IMMED_CASES,%l3 | |
179 | immed_loop: | |
180 | ldx [%g1],%l1 | |
181 | ! ccr clear, immed = 0 | |
182 | wr %g0,%g0,%ccr | |
183 | sub %l1,0,%l4 | |
184 | ||
185 | wr %g0,%g0,%ccr | |
186 | subc %l1,0,%l5 | |
187 | ||
188 | wr %g0,%g0,%ccr | |
189 | subcc %l1,0,%l6 | |
190 | ||
191 | wr %g0,%g0,%ccr | |
192 | subccc %l1,0,%l7 | |
193 | ||
194 | wr %g0,%g0,%ccr | |
195 | tsubcc %l1,0,%l0 | |
196 | ||
197 | wr %g0,%g0,%ccr | |
198 | tsubcctv %l1,0,%l4 | |
199 | ||
200 | ! ccr clear, immed = fff (max positive) | |
201 | wr %g0,%g0,%ccr | |
202 | sub %l1,0xfff,%l4 | |
203 | ||
204 | wr %g0,%g0,%ccr | |
205 | subc %l1,0xfff,%l5 | |
206 | ||
207 | wr %g0,%g0,%ccr | |
208 | subcc %l1,0xfff,%l6 | |
209 | ||
210 | wr %g0,%g0,%ccr | |
211 | subccc %l1,0xfff,%l7 | |
212 | ||
213 | wr %g0,%g0,%ccr | |
214 | tsubcc %l1,0xfff,%l0 | |
215 | ||
216 | wr %g0,%g0,%ccr | |
217 | tsubcctv %l1,0xfff,%l4 | |
218 | ||
219 | ! ccr clear, immed = 1fff (-1) | |
220 | wr %g0,%g0,%ccr | |
221 | sub %l1,0x1fff,%l4 | |
222 | ||
223 | wr %g0,%g0,%ccr | |
224 | subc %l1,0x1fff,%l5 | |
225 | ||
226 | wr %g0,%g0,%ccr | |
227 | subcc %l1,0x1fff,%l6 | |
228 | ||
229 | wr %g0,%g0,%ccr | |
230 | subccc %l1,0x1fff,%l7 | |
231 | ||
232 | wr %g0,%g0,%ccr | |
233 | tsubcc %l1,0x1fff,%l0 | |
234 | ||
235 | wr %g0,%g0,%ccr | |
236 | tsubcctv %l1,0x1fff,%l4 | |
237 | ||
238 | ! ccr set, immed = assorted | |
239 | wr %g0,0x11,%ccr | |
240 | sub %l1,0x1000,%l4 | |
241 | ||
242 | wr %g0,0x11,%ccr | |
243 | subc %l1,0x01ff,%l5 | |
244 | ||
245 | wr %g0,0x11,%ccr | |
246 | subcc %l1,0x1234,%l6 | |
247 | ||
248 | wr %g0,0x11,%ccr | |
249 | subccc %l1,0x1fff,%l7 | |
250 | ||
251 | wr %g0,0x11,%ccr | |
252 | tsubcc %l1,0x11,%l0 | |
253 | ||
254 | wr %g0,0x11,%ccr | |
255 | tsubcctv %l1,0x1ffc,%l4 | |
256 | ||
257 | sub %l3,0x1,%l3 | |
258 | brnz,pt %l3,immed_loop | |
259 | add %g1,8,%g1 ! move operand pointer | |
260 | ||
261 | good_end: | |
262 | ta T_GOOD_TRAP | |
263 | nop | |
264 | nop | |
265 | ||
266 | ||
267 | !========================== | |
268 | .data | |
269 | .align 0x1fff+1 | |
270 | ||
271 | .global tsdata | |
272 | rs2_data: | |
273 | .word 0x00000000, 0x00000000 ! xcc.z, icc.z (0-0) | |
274 | .word 0x00000000, 0x00000000 | |
275 | ||
276 | .word 0x80000000, 0x80000000 ! xcc.n, icc.n (x-0) | |
277 | .word 0x00000000, 0x00000000 | |
278 | ||
279 | .word 0x00000000, 0x80000000 ! xcc.z, icc.z (x-x) | |
280 | .word 0x00000000, 0x80000000 | |
281 | ||
282 | .word 0x80000000, 0x00000000 ! xcc.z, icc.z (x-x) | |
283 | .word 0x80000000, 0x00000000 | |
284 | ||
285 | .word 0xaaaaaaaa, 0x22222222 ! xcc.n (x-0) | |
286 | .word 0x00000000, 0x00000000 | |
287 | ||
288 | .word 0x00000000, 0x00000000 ! xcc.c, icc.c (0-x) | |
289 | .word 0xffffffff, 0xffffffbe | |
290 | ||
291 | .word 0x00000000, 0x7fffffff ! xcc.nc, icc.nvc | |
292 | .word 0x00000000, 0xffffffff | |
293 | ||
294 | .word 0xffffffff, 0xffffffff ! xcc.n, icc.z | |
295 | .word 0x00000000, 0xffffffff | |
296 | ||
297 | .word 0x00000000, 0x80000000 ! icc.v | |
298 | .word 0x00000000, 0x00000001 | |
299 | ||
300 | .word 0x00000000, 0x00000000 ! xcc.nc, icc.c | |
301 | .word 0x00000000, 0xffffffff | |
302 | ||
303 | .word 0xffffffff, 0xffffffff ! xcc.n, icc.z | |
304 | .word 0x7fffffff, 0xffffffff | |
305 | ||
306 | .word 0xffffffff, 0xffffffff ! xcc.z, icc.z | |
307 | .word 0xffffffff, 0xffffffff | |
308 | ||
309 | .word 0xffffffff, 0xffffffff ! xcc.n, icc.n | |
310 | .word 0x00000000, 0x00000001 | |
311 | ||
312 | .word 0x80000000, 0x00000000 ! xcc.v, icc.nvc | |
313 | .word 0x00000000, 0x00000001 | |
314 | ||
315 | .word 0x00000000, 0x00000000 ! xcc.c, icc.c | |
316 | .word 0xffffffff, 0xffffffff | |
317 | ||
318 | .word 0x87654321, 0x56789abd ! 64:-x - -y, xcc.nc, icc.nc | |
319 | .word 0x96312468, 0x7abcdef1 ! 32:+x - +y | |
320 | ||
321 | .word 0x56789abc, 0x87654320 ! 64:+x - -y, xcc.nvc, icc.v | |
322 | .word 0x9abcdef1, 0x4631246a ! 32:-x - +y | |
323 | ||
324 | .global tsub_data | |
325 | tsub_data: | |
326 | .word 0x0, 0xc ! <1:0> = 00 | |
327 | .word 0x0, 0x1 | |
328 | .word 0x0, 0xe ! <1:0> = 01 | |
329 | .word 0x0, 0x3 | |
330 | ||
331 | .global immed_data | |
332 | immed_data: | |
333 | .word 0x00000000, 0x00000000 | |
334 | .word 0x00000000, 0x7fffffff | |
335 | .word 0x00000000, 0x00000001 | |
336 | .word 0x7fffffff, 0xffffffff | |
337 | .word 0xffffffff, 0xffffffff | |
338 | ||
339 | ||
340 | .end |