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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: ffu_siam_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 FSR_DUMP_P %g7 | |
39 | #define OPERAND_P %g2 | |
40 | ||
41 | #define NUM_MODES 8 | |
42 | ||
43 | #define H_T0_Fp_exception_ieee_754_0x21 trap_ieee754 | |
44 | ||
45 | #define MAIN_PAGE_HV_ALSO | |
46 | #define MAIN_PAGE_NUCLEUS_ALSO | |
47 | ||
48 | #define ENABLE_T0_Clean_Window_0x24 | |
49 | #define ENABLE_T0_Corrected_ECC_error_0x63 | |
50 | #define ENABLE_T0_Data_Access_Exception_0x30 | |
51 | #define ENABLE_T0_Data_access_error_0x32 | |
52 | #define ENABLE_T0_Division_By_Zero_0x28 | |
53 | #define ENABLE_T0_Fp_disabled_0x20 | |
54 | #define ENABLE_T0_Fp_exception_ieee_754_0x21 | |
55 | #define ENABLE_T0_Fp_exception_other_0x22 | |
56 | #define ENABLE_T0_Illegal_instruction_0x10 | |
57 | #define ENABLE_T0_Instruction_Access_MMU_Miss_0x09 | |
58 | #define ENABLE_T0_Instruction_access_error_0x0a | |
59 | #define ENABLE_T0_Instruction_access_exception_0x08 | |
60 | #define ENABLE_T0_Lddf_Mem_Address_Not_Aligned_0x35 | |
61 | #define ENABLE_T0_Mem_Address_Not_Aligned_0x34 | |
62 | #define ENABLE_T0_Privileged_Action_0x37 | |
63 | #define ENABLE_T0_Privileged_opcode_0x11 | |
64 | #define ENABLE_T0_Stdf_Mem_Address_Not_Aligned_0x36 | |
65 | #define ENABLE_T0_Tag_Overflow_0x23 | |
66 | #define ENABLE_T0_Unimplemented_LDD_0x12 | |
67 | #define ENABLE_T0_Unimplemented_STD_0x13 | |
68 | #define ENABLE_T0_data_access_protection_0x6c | |
69 | #define ENABLE_T0_fast_data_access_MMU_miss_0x68 | |
70 | #define ENABLE_T0_fast_instr_access_MMU_miss_0x64 | |
71 | ||
72 | #include "hboot.s" | |
73 | ||
74 | .global main | |
75 | main: | |
76 | th_fork(th_main,%l0) ! seperate the threads | |
77 | ||
78 | th_main_0: | |
79 | wr %g0,0x4,%fprs | |
80 | set fsr_data0,%g1 | |
81 | set operands_0,OPERAND_P | |
82 | set fsr_save0,FSR_DUMP_P | |
83 | ba all_thds | |
84 | nop | |
85 | ||
86 | th_main_1: | |
87 | wr %g0,0x4,%fprs | |
88 | set fsr_data1,%g1 | |
89 | set operands_1,OPERAND_P | |
90 | set fsr_save1,FSR_DUMP_P | |
91 | ba all_thds | |
92 | nop | |
93 | ||
94 | th_main_2: | |
95 | wr %g0,0x4,%fprs | |
96 | set fsr_data2,%g1 | |
97 | set operands_2,OPERAND_P | |
98 | set fsr_save2,FSR_DUMP_P | |
99 | ba all_thds | |
100 | nop | |
101 | th_main_3: | |
102 | wr %g0,0x4,%fprs | |
103 | set fsr_data3,%g1 | |
104 | set operands_3,OPERAND_P | |
105 | set fsr_save3,FSR_DUMP_P | |
106 | ba all_thds | |
107 | nop | |
108 | ||
109 | ||
110 | all_thds: | |
111 | mov NUM_MODES,%i7 | |
112 | ldd [OPERAND_P], %f0 | |
113 | ldd [OPERAND_P+8], %f2 | |
114 | ! clear destination regs because they are unchagned on a trap | |
115 | set zero_words,%l2 | |
116 | ldd [%l2],%f22 | |
117 | ldd [%l2],%f24 | |
118 | ||
119 | loop: | |
120 | ld [%g1],%fsr | |
121 | st %fsr,[FSR_DUMP_P] | |
122 | ld [FSR_DUMP_P],%l1 | |
123 | st %fsr,[FSR_DUMP_P] ! double check that st %fsr does not | |
124 | ld [FSR_DUMP_P],%l2 ! clear wrong fields | |
125 | ||
126 | th_fork(th_test,%l0) ! seperate the threads | |
127 | ||
128 | th_test_3: | |
129 | siam 0 ! use fsr | |
130 | faddd %f0, %f2, %f22 | |
131 | st %fsr,[FSR_DUMP_P] | |
132 | ld [FSR_DUMP_P],%l1 | |
133 | fmovd %f22,%f4 | |
134 | ||
135 | siam 3 ! use fsr | |
136 | faddd %f0, %f2, %f24 | |
137 | st %fsr,[FSR_DUMP_P] | |
138 | ld [FSR_DUMP_P],%l1 | |
139 | fmovd %f24,%f4 | |
140 | ||
141 | siam 4 | |
142 | faddd %f0, %f2, %f22 | |
143 | st %fsr,[FSR_DUMP_P] | |
144 | ld [FSR_DUMP_P],%l1 | |
145 | fmovd %f22,%f4 | |
146 | ||
147 | siam 5 | |
148 | faddd %f0, %f2, %f24 | |
149 | st %fsr,[FSR_DUMP_P] | |
150 | ld [FSR_DUMP_P],%l1 | |
151 | fmovd %f24,%f4 | |
152 | ||
153 | siam 6 | |
154 | faddd %f0, %f2, %f22 | |
155 | st %fsr,[FSR_DUMP_P] | |
156 | ld [FSR_DUMP_P],%l1 | |
157 | fmovd %f22,%f4 | |
158 | ||
159 | siam 7 | |
160 | faddd %f0, %f2, %f24 | |
161 | st %fsr,[FSR_DUMP_P] | |
162 | ld [FSR_DUMP_P],%l1 | |
163 | fmovd %f24,%f4 | |
164 | ||
165 | ba next_case | |
166 | nop | |
167 | ||
168 | th_test_2: | |
169 | siam 0 ! use fsr | |
170 | faddd %f0, %f2, %f22 | |
171 | st %fsr,[FSR_DUMP_P] | |
172 | ld [FSR_DUMP_P],%l1 | |
173 | fmovd %f22,%f4 | |
174 | ||
175 | siam 4 | |
176 | faddd %f0, %f2, %f24 | |
177 | st %fsr,[FSR_DUMP_P] | |
178 | ld [FSR_DUMP_P],%l1 | |
179 | fmovd %f24,%f4 | |
180 | ||
181 | siam 7 | |
182 | faddd %f0, %f2, %f22 | |
183 | st %fsr,[FSR_DUMP_P] | |
184 | ld [FSR_DUMP_P],%l1 | |
185 | fmovd %f22,%f4 | |
186 | ||
187 | siam 5 | |
188 | faddd %f0, %f2, %f24 | |
189 | st %fsr,[FSR_DUMP_P] | |
190 | ld [FSR_DUMP_P],%l1 | |
191 | fmovd %f24,%f4 | |
192 | ||
193 | siam 2 ! use fsr | |
194 | faddd %f0, %f2, %f22 | |
195 | st %fsr,[FSR_DUMP_P] | |
196 | ld [FSR_DUMP_P],%l1 | |
197 | fmovd %f22,%f4 | |
198 | ||
199 | siam 6 | |
200 | faddd %f0, %f2, %f24 | |
201 | st %fsr,[FSR_DUMP_P] | |
202 | ld [FSR_DUMP_P],%l1 | |
203 | fmovd %f24,%f4 | |
204 | ||
205 | ba next_case | |
206 | nop | |
207 | ||
208 | th_test_1: | |
209 | siam 7 | |
210 | faddd %f0, %f2, %f22 | |
211 | st %fsr,[FSR_DUMP_P] | |
212 | ld [FSR_DUMP_P],%l1 | |
213 | fmovd %f22,%f4 | |
214 | ||
215 | siam 6 | |
216 | faddd %f0, %f2, %f24 | |
217 | st %fsr,[FSR_DUMP_P] | |
218 | ld [FSR_DUMP_P],%l1 | |
219 | fmovd %f24,%f4 | |
220 | ||
221 | siam 5 | |
222 | faddd %f0, %f2, %f22 | |
223 | st %fsr,[FSR_DUMP_P] | |
224 | ld [FSR_DUMP_P],%l1 | |
225 | fmovd %f22,%f4 | |
226 | ||
227 | siam 3 ! use fsr | |
228 | faddd %f0, %f2, %f24 | |
229 | st %fsr,[FSR_DUMP_P] | |
230 | ld [FSR_DUMP_P],%l1 | |
231 | fmovd %f24,%f4 | |
232 | ||
233 | siam 4 | |
234 | faddd %f0, %f2, %f22 | |
235 | st %fsr,[FSR_DUMP_P] | |
236 | ld [FSR_DUMP_P],%l1 | |
237 | fmovd %f22,%f4 | |
238 | ||
239 | siam 1 ! use fsr | |
240 | faddd %f0, %f2, %f24 | |
241 | st %fsr,[FSR_DUMP_P] | |
242 | ld [FSR_DUMP_P],%l1 | |
243 | fmovd %f24,%f4 | |
244 | ||
245 | ba next_case | |
246 | nop | |
247 | ||
248 | th_test_0: | |
249 | siam 6 | |
250 | faddd %f0, %f2, %f22 | |
251 | st %fsr,[FSR_DUMP_P] | |
252 | ld [FSR_DUMP_P],%l1 | |
253 | fmovd %f22,%f4 | |
254 | ||
255 | siam 5 | |
256 | faddd %f0, %f2, %f24 | |
257 | st %fsr,[FSR_DUMP_P] | |
258 | ld [FSR_DUMP_P],%l1 | |
259 | fmovd %f24,%f4 | |
260 | ||
261 | siam 4 | |
262 | faddd %f0, %f2, %f22 | |
263 | st %fsr,[FSR_DUMP_P] | |
264 | ld [FSR_DUMP_P],%l1 | |
265 | fmovd %f22,%f4 | |
266 | ||
267 | siam 2 | |
268 | faddd %f0, %f2, %f24 | |
269 | st %fsr,[FSR_DUMP_P] | |
270 | ld [FSR_DUMP_P],%l1 | |
271 | fmovd %f24,%f4 | |
272 | ||
273 | siam 0 ! use fsr | |
274 | faddd %f0, %f2, %f22 | |
275 | st %fsr,[FSR_DUMP_P] | |
276 | ld [FSR_DUMP_P],%l1 | |
277 | fmovd %f24,%f4 | |
278 | ||
279 | siam 7 | |
280 | faddd %f0, %f2, %f24 | |
281 | st %fsr,[FSR_DUMP_P] | |
282 | ld [FSR_DUMP_P],%l1 | |
283 | fmovd %f22,%f4 | |
284 | ||
285 | next_case: | |
286 | add %g1, 4, %g1 | |
287 | sub %i7, 1, %i7 ! next mode | |
288 | brnz,a %i7, loop | |
289 | nop | |
290 | ||
291 | ||
292 | ||
293 | good_end: | |
294 | ta T_GOOD_TRAP | |
295 | nop | |
296 | nop | |
297 | ||
298 | !========================== | |
299 | .data | |
300 | .align 0x1fff+1 | |
301 | ||
302 | .align 8 | |
303 | fsr_data0: | |
304 | .word 0x00800000 | |
305 | .word 0x40800000 | |
306 | .word 0x80800000 | |
307 | .word 0xc0800000 | |
308 | .word 0x00000000 | |
309 | .word 0x40000000 | |
310 | .word 0x80000000 | |
311 | .word 0xc0000000 | |
312 | fsr_data1: | |
313 | .word 0x40800000 | |
314 | .word 0x40000000 | |
315 | .word 0x80800000 | |
316 | .word 0x80000000 | |
317 | .word 0xc0800000 | |
318 | .word 0xc0000000 | |
319 | .word 0x00800000 | |
320 | .word 0x00000000 | |
321 | fsr_data2: | |
322 | .word 0x80000000 | |
323 | .word 0xc0000000 | |
324 | .word 0x00000000 | |
325 | .word 0x40000000 | |
326 | .word 0x80800000 | |
327 | .word 0xc0800000 | |
328 | .word 0x00800000 | |
329 | .word 0x40800000 | |
330 | fsr_data3: | |
331 | .word 0xc0800000 | |
332 | .word 0x00800000 | |
333 | .word 0x00000000 | |
334 | .word 0x40800000 | |
335 | .word 0x80800000 | |
336 | .word 0x40000000 | |
337 | .word 0x80000000 | |
338 | .word 0xc0000000 | |
339 | ||
340 | fsr_save0: .word 0 | |
341 | fsr_save1: .word 0 | |
342 | fsr_save2: .word 0 | |
343 | fsr_save3: .word 0 | |
344 | ||
345 | ||
346 | .align 8 | |
347 | .global operand_start | |
348 | operands_0: | |
349 | ! format = one bit of sign, 11 bits of exponent, 52 bits of fraction | |
350 | .word 0xf0080000, 0x00000000, 0x80080000, 0x00000000 | |
351 | operands_1: | |
352 | .word 0x3fefffff, 0xfffffffe, 0x3fefffff, 0xfffffffd | |
353 | operands_2: | |
354 | .word 0x3fefffff, 0xfffffffc, 0x3ff80000, 0x00000001 | |
355 | operands_3: | |
356 | .word 0x00efffff, 0xffffffff, 0x00f80000, 0x00000004 | |
357 | ||
358 | zero_words: | |
359 | .word 0,0,0,0 | |
360 | ||
361 | ||
362 | ||
363 | ||
364 | .text | |
365 | ||
366 | .global trap_ieee754 | |
367 | trap_ieee754: | |
368 | done | |
369 | nop | |
370 | ||
371 | .end |