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fdf9b3e8 FB |
1 | /* |
2 | * SH4 emulation | |
5fafdf24 | 3 | * |
fdf9b3e8 FB |
4 | * Copyright (c) 2005 Samuel Tardieu |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | #include "exec.h" | |
21 | ||
fdf9b3e8 FB |
22 | static inline void set_t(void) |
23 | { | |
24 | env->sr |= SR_T; | |
25 | } | |
26 | ||
27 | static inline void clr_t(void) | |
28 | { | |
29 | env->sr &= ~SR_T; | |
30 | } | |
31 | ||
32 | static inline void cond_t(int cond) | |
33 | { | |
34 | if (cond) | |
35 | set_t(); | |
36 | else | |
37 | clr_t(); | |
38 | } | |
39 | ||
fdf9b3e8 FB |
40 | void OPPROTO op_cmp_str_T0_T1(void) |
41 | { | |
42 | cond_t((T0 & 0x000000ff) == (T1 & 0x000000ff) || | |
43 | (T0 & 0x0000ff00) == (T1 & 0x0000ff00) || | |
44 | (T0 & 0x00ff0000) == (T1 & 0x00ff0000) || | |
45 | (T0 & 0xff000000) == (T1 & 0xff000000)); | |
46 | RETURN(); | |
47 | } | |
48 | ||
fdf9b3e8 FB |
49 | void OPPROTO op_div0s_T0_T1(void) |
50 | { | |
51 | if (T1 & 0x80000000) | |
52 | env->sr |= SR_Q; | |
53 | else | |
54 | env->sr &= ~SR_Q; | |
55 | if (T0 & 0x80000000) | |
56 | env->sr |= SR_M; | |
57 | else | |
58 | env->sr &= ~SR_M; | |
59 | cond_t((T1 ^ T0) & 0x80000000); | |
60 | RETURN(); | |
61 | } | |
62 | ||
fdf9b3e8 FB |
63 | void OPPROTO op_div1_T0_T1(void) |
64 | { | |
65 | helper_div1_T0_T1(); | |
66 | RETURN(); | |
67 | } | |
68 | ||
fdf9b3e8 FB |
69 | void OPPROTO op_shad_T0_T1(void) |
70 | { | |
71 | if ((T0 & 0x80000000) == 0) | |
72 | T1 <<= (T0 & 0x1f); | |
73 | else if ((T0 & 0x1f) == 0) | |
24988dc2 | 74 | T1 = (T1 & 0x80000000)? 0xffffffff : 0; |
fdf9b3e8 FB |
75 | else |
76 | T1 = ((int32_t) T1) >> ((~T0 & 0x1f) + 1); | |
77 | RETURN(); | |
78 | } | |
79 | ||
80 | void OPPROTO op_shld_T0_T1(void) | |
81 | { | |
82 | if ((T0 & 0x80000000) == 0) | |
83 | T1 <<= (T0 & 0x1f); | |
84 | else if ((T0 & 0x1f) == 0) | |
85 | T1 = 0; | |
86 | else | |
87 | T1 = ((uint32_t) T1) >> ((~T0 & 0x1f) + 1); | |
88 | RETURN(); | |
89 | } | |
90 | ||
eda9b09b FB |
91 | void OPPROTO op_ldc_T0_sr(void) |
92 | { | |
93 | env->sr = T0 & 0x700083f3; | |
94 | RETURN(); | |
95 | } | |
96 | ||
97 | void OPPROTO op_stc_sr_T0(void) | |
98 | { | |
99 | T0 = env->sr; | |
100 | RETURN(); | |
101 | } | |
102 | ||
fdf9b3e8 FB |
103 | #define LDSTOPS(target,load,store) \ |
104 | void OPPROTO op_##load##_T0_##target (void) \ | |
105 | { env ->target = T0; RETURN(); \ | |
106 | } \ | |
107 | void OPPROTO op_##store##_##target##_T0 (void) \ | |
108 | { T0 = env->target; RETURN(); \ | |
109 | } \ | |
110 | ||
fdf9b3e8 FB |
111 | LDSTOPS(gbr, ldc, stc) |
112 | LDSTOPS(vbr, ldc, stc) | |
113 | LDSTOPS(ssr, ldc, stc) | |
114 | LDSTOPS(spc, ldc, stc) | |
115 | LDSTOPS(sgr, ldc, stc) | |
116 | LDSTOPS(dbr, ldc, stc) | |
117 | LDSTOPS(mach, lds, sts) | |
118 | LDSTOPS(macl, lds, sts) | |
119 | LDSTOPS(pr, lds, sts) | |
eda9b09b FB |
120 | LDSTOPS(fpul, lds, sts) |
121 | ||
122 | void OPPROTO op_lds_T0_fpscr(void) | |
123 | { | |
124 | env->fpscr = T0 & 0x003fffff; | |
ea6cf6be TS |
125 | env->fp_status.float_rounding_mode = T0 & 0x01 ? |
126 | float_round_to_zero : float_round_nearest_even; | |
127 | ||
eda9b09b FB |
128 | RETURN(); |
129 | } | |
130 | ||
131 | void OPPROTO op_sts_fpscr_T0(void) | |
132 | { | |
133 | T0 = env->fpscr & 0x003fffff; | |
134 | RETURN(); | |
135 | } | |
fdf9b3e8 | 136 | |
fdf9b3e8 FB |
137 | void OPPROTO op_rotcl_Rn(void) |
138 | { | |
139 | helper_rotcl(&env->gregs[PARAM1]); | |
140 | RETURN(); | |
141 | } | |
142 | ||
143 | void OPPROTO op_rotcr_Rn(void) | |
144 | { | |
145 | helper_rotcr(&env->gregs[PARAM1]); | |
146 | RETURN(); | |
147 | } | |
148 | ||
6f06939b | 149 | void OPPROTO op_rotl_Rn(void) |
fdf9b3e8 FB |
150 | { |
151 | cond_t(env->gregs[PARAM1] & 0x80000000); | |
152 | env->gregs[PARAM1] = (env->gregs[PARAM1] << 1) | (env->sr & SR_T); | |
153 | RETURN(); | |
154 | } | |
155 | ||
156 | void OPPROTO op_rotr_Rn(void) | |
157 | { | |
158 | cond_t(env->gregs[PARAM1] & 1); | |
159 | env->gregs[PARAM1] = (env->gregs[PARAM1] >> 1) | | |
160 | ((env->sr & SR_T) ? 0x80000000 : 0); | |
161 | RETURN(); | |
162 | } | |
163 | ||
164 | void OPPROTO op_shal_Rn(void) | |
165 | { | |
166 | cond_t(env->gregs[PARAM1] & 0x80000000); | |
167 | env->gregs[PARAM1] <<= 1; | |
168 | RETURN(); | |
169 | } | |
170 | ||
171 | void OPPROTO op_shar_Rn(void) | |
172 | { | |
173 | cond_t(env->gregs[PARAM1] & 1); | |
24988dc2 | 174 | *(int32_t *)&env->gregs[PARAM1] >>= 1; |
fdf9b3e8 FB |
175 | RETURN(); |
176 | } | |
177 | ||
178 | void OPPROTO op_shlr_Rn(void) | |
179 | { | |
180 | cond_t(env->gregs[PARAM1] & 1); | |
a5d251bd | 181 | env->gregs[PARAM1] >>= 1; |
fdf9b3e8 FB |
182 | RETURN(); |
183 | } | |
184 | ||
eda9b09b FB |
185 | void OPPROTO op_fmov_frN_FT0(void) |
186 | { | |
e04ea3dc | 187 | FT0 = env->fregs[PARAM1]; |
eda9b09b FB |
188 | RETURN(); |
189 | } | |
190 | ||
191 | void OPPROTO op_fmov_drN_DT0(void) | |
192 | { | |
e04ea3dc TS |
193 | CPU_DoubleU d; |
194 | ||
195 | d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; | |
196 | d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1]; | |
197 | DT0 = d.d; | |
eda9b09b FB |
198 | RETURN(); |
199 | } | |
200 | ||
ea6cf6be TS |
201 | void OPPROTO op_fmov_frN_FT1(void) |
202 | { | |
e04ea3dc | 203 | FT1 = env->fregs[PARAM1]; |
ea6cf6be TS |
204 | RETURN(); |
205 | } | |
206 | ||
207 | void OPPROTO op_fmov_drN_DT1(void) | |
208 | { | |
e04ea3dc TS |
209 | CPU_DoubleU d; |
210 | ||
211 | d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; | |
212 | d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1]; | |
213 | DT1 = d.d; | |
ea6cf6be TS |
214 | RETURN(); |
215 | } | |
216 | ||
eda9b09b FB |
217 | void OPPROTO op_fmov_FT0_frN(void) |
218 | { | |
e04ea3dc | 219 | env->fregs[PARAM1] = FT0; |
eda9b09b FB |
220 | RETURN(); |
221 | } | |
222 | ||
223 | void OPPROTO op_fmov_DT0_drN(void) | |
224 | { | |
e04ea3dc TS |
225 | CPU_DoubleU d; |
226 | ||
227 | d.d = DT0; | |
228 | *(uint32_t *)&env->fregs[PARAM1] = d.l.upper; | |
229 | *(uint32_t *)&env->fregs[PARAM1 + 1] = d.l.lower; | |
eda9b09b FB |
230 | RETURN(); |
231 | } | |
232 | ||
ea6cf6be TS |
233 | void OPPROTO op_fadd_FT(void) |
234 | { | |
235 | FT0 = float32_add(FT0, FT1, &env->fp_status); | |
236 | RETURN(); | |
237 | } | |
238 | ||
239 | void OPPROTO op_fadd_DT(void) | |
240 | { | |
241 | DT0 = float64_add(DT0, DT1, &env->fp_status); | |
242 | RETURN(); | |
243 | } | |
244 | ||
245 | void OPPROTO op_fsub_FT(void) | |
246 | { | |
247 | FT0 = float32_sub(FT0, FT1, &env->fp_status); | |
248 | RETURN(); | |
249 | } | |
250 | ||
251 | void OPPROTO op_fsub_DT(void) | |
252 | { | |
253 | DT0 = float64_sub(DT0, DT1, &env->fp_status); | |
254 | RETURN(); | |
255 | } | |
256 | ||
257 | void OPPROTO op_fmul_FT(void) | |
258 | { | |
259 | FT0 = float32_mul(FT0, FT1, &env->fp_status); | |
260 | RETURN(); | |
261 | } | |
262 | ||
263 | void OPPROTO op_fmul_DT(void) | |
264 | { | |
265 | DT0 = float64_mul(DT0, DT1, &env->fp_status); | |
266 | RETURN(); | |
267 | } | |
268 | ||
269 | void OPPROTO op_fdiv_FT(void) | |
270 | { | |
271 | FT0 = float32_div(FT0, FT1, &env->fp_status); | |
272 | RETURN(); | |
273 | } | |
274 | ||
275 | void OPPROTO op_fdiv_DT(void) | |
276 | { | |
277 | DT0 = float64_div(DT0, DT1, &env->fp_status); | |
278 | RETURN(); | |
279 | } | |
280 | ||
24988dc2 AJ |
281 | void OPPROTO op_fcmp_eq_FT(void) |
282 | { | |
283 | cond_t(float32_compare(FT0, FT1, &env->fp_status) == 0); | |
284 | RETURN(); | |
285 | } | |
286 | ||
287 | void OPPROTO op_fcmp_eq_DT(void) | |
288 | { | |
289 | cond_t(float64_compare(DT0, DT1, &env->fp_status) == 0); | |
290 | RETURN(); | |
291 | } | |
292 | ||
293 | void OPPROTO op_fcmp_gt_FT(void) | |
294 | { | |
295 | cond_t(float32_compare(FT0, FT1, &env->fp_status) == 1); | |
296 | RETURN(); | |
297 | } | |
298 | ||
299 | void OPPROTO op_fcmp_gt_DT(void) | |
300 | { | |
301 | cond_t(float64_compare(DT0, DT1, &env->fp_status) == 1); | |
302 | RETURN(); | |
303 | } | |
304 | ||
ea6cf6be TS |
305 | void OPPROTO op_float_FT(void) |
306 | { | |
307 | FT0 = int32_to_float32(env->fpul, &env->fp_status); | |
308 | RETURN(); | |
309 | } | |
310 | ||
311 | void OPPROTO op_float_DT(void) | |
312 | { | |
313 | DT0 = int32_to_float64(env->fpul, &env->fp_status); | |
314 | RETURN(); | |
315 | } | |
316 | ||
317 | void OPPROTO op_ftrc_FT(void) | |
318 | { | |
319 | env->fpul = float32_to_int32_round_to_zero(FT0, &env->fp_status); | |
320 | RETURN(); | |
321 | } | |
322 | ||
323 | void OPPROTO op_ftrc_DT(void) | |
324 | { | |
325 | env->fpul = float64_to_int32_round_to_zero(DT0, &env->fp_status); | |
326 | RETURN(); | |
327 | } | |
328 | ||
24988dc2 AJ |
329 | void OPPROTO op_fneg_frN(void) |
330 | { | |
331 | env->fregs[PARAM1] = float32_chs(env->fregs[PARAM1]); | |
332 | RETURN(); | |
333 | } | |
334 | ||
335 | void OPPROTO op_fabs_FT(void) | |
336 | { | |
337 | FT0 = float32_abs(FT0); | |
338 | RETURN(); | |
339 | } | |
340 | ||
341 | void OPPROTO op_fabs_DT(void) | |
342 | { | |
343 | DT0 = float64_abs(DT0); | |
344 | RETURN(); | |
345 | } | |
346 | ||
347 | void OPPROTO op_fcnvsd_FT_DT(void) | |
348 | { | |
349 | DT0 = float32_to_float64(FT0, &env->fp_status); | |
350 | RETURN(); | |
351 | } | |
352 | ||
353 | void OPPROTO op_fcnvds_DT_FT(void) | |
354 | { | |
355 | FT0 = float64_to_float32(DT0, &env->fp_status); | |
356 | RETURN(); | |
357 | } | |
358 | ||
359 | void OPPROTO op_fsqrt_FT(void) | |
360 | { | |
361 | FT0 = float32_sqrt(FT0, &env->fp_status); | |
362 | RETURN(); | |
363 | } | |
364 | ||
365 | void OPPROTO op_fsqrt_DT(void) | |
366 | { | |
367 | DT0 = float64_sqrt(DT0, &env->fp_status); | |
368 | RETURN(); | |
369 | } | |
370 | ||
ea6cf6be TS |
371 | void OPPROTO op_fmov_T0_frN(void) |
372 | { | |
24988dc2 | 373 | *(uint32_t *)&env->fregs[PARAM1] = T0; |
ea6cf6be TS |
374 | RETURN(); |
375 | } | |
376 | ||
eda9b09b FB |
377 | void OPPROTO op_movl_fpul_FT0(void) |
378 | { | |
379 | FT0 = *(float32 *)&env->fpul; | |
380 | RETURN(); | |
381 | } | |
382 | ||
383 | void OPPROTO op_movl_FT0_fpul(void) | |
384 | { | |
385 | *(float32 *)&env->fpul = FT0; | |
386 | RETURN(); | |
387 | } | |
388 | ||
fdf9b3e8 FB |
389 | /* Load and store */ |
390 | #define MEMSUFFIX _raw | |
391 | #include "op_mem.c" | |
392 | #undef MEMSUFFIX | |
393 | #if !defined(CONFIG_USER_ONLY) | |
394 | #define MEMSUFFIX _user | |
395 | #include "op_mem.c" | |
396 | #undef MEMSUFFIX | |
397 | ||
398 | #define MEMSUFFIX _kernel | |
399 | #include "op_mem.c" | |
400 | #undef MEMSUFFIX | |
401 | #endif |