| 1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
| 2 | * Mupen64plus - fpu.c * |
| 3 | * Copyright (C) 2010 Ari64 * |
| 4 | * * |
| 5 | * This program is free software; you can redistribute it and/or modify * |
| 6 | * it under the terms of the GNU General Public License as published by * |
| 7 | * the Free Software Foundation; either version 2 of the License, or * |
| 8 | * (at your option) any later version. * |
| 9 | * * |
| 10 | * This program is distributed in the hope that it will be useful, * |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 13 | * GNU General Public License for more details. * |
| 14 | * * |
| 15 | * You should have received a copy of the GNU General Public License * |
| 16 | * along with this program; if not, write to the * |
| 17 | * Free Software Foundation, Inc., * |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
| 19 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 20 | |
| 21 | #include <math.h> |
| 22 | |
| 23 | extern int FCR0, FCR31; |
| 24 | |
| 25 | void cvt_s_w(int *source,float *dest) |
| 26 | { |
| 27 | *dest = *source; |
| 28 | } |
| 29 | void cvt_d_w(int *source,double *dest) |
| 30 | { |
| 31 | *dest = *source; |
| 32 | } |
| 33 | void cvt_s_l(long long *source,float *dest) |
| 34 | { |
| 35 | *dest = *source; |
| 36 | } |
| 37 | void cvt_d_l(long long *source,double *dest) |
| 38 | { |
| 39 | *dest = *source; |
| 40 | } |
| 41 | void cvt_d_s(float *source,double *dest) |
| 42 | { |
| 43 | *dest = *source; |
| 44 | } |
| 45 | void cvt_s_d(double *source,float *dest) |
| 46 | { |
| 47 | *dest = *source; |
| 48 | } |
| 49 | |
| 50 | void round_l_s(float *source,long long *dest) |
| 51 | { |
| 52 | *dest = roundf(*source); |
| 53 | } |
| 54 | void round_w_s(float *source,int *dest) |
| 55 | { |
| 56 | *dest = roundf(*source); |
| 57 | } |
| 58 | void trunc_l_s(float *source,long long *dest) |
| 59 | { |
| 60 | *dest = truncf(*source); |
| 61 | } |
| 62 | void trunc_w_s(float *source,int *dest) |
| 63 | { |
| 64 | *dest = truncf(*source); |
| 65 | } |
| 66 | void ceil_l_s(float *source,long long *dest) |
| 67 | { |
| 68 | *dest = ceilf(*source); |
| 69 | } |
| 70 | void ceil_w_s(float *source,int *dest) |
| 71 | { |
| 72 | *dest = ceilf(*source); |
| 73 | } |
| 74 | void floor_l_s(float *source,long long *dest) |
| 75 | { |
| 76 | *dest = floorf(*source); |
| 77 | } |
| 78 | void floor_w_s(float *source,int *dest) |
| 79 | { |
| 80 | *dest = floorf(*source); |
| 81 | } |
| 82 | |
| 83 | void round_l_d(double *source,long long *dest) |
| 84 | { |
| 85 | *dest = round(*source); |
| 86 | } |
| 87 | void round_w_d(double *source,int *dest) |
| 88 | { |
| 89 | *dest = round(*source); |
| 90 | } |
| 91 | void trunc_l_d(double *source,long long *dest) |
| 92 | { |
| 93 | *dest = trunc(*source); |
| 94 | } |
| 95 | void trunc_w_d(double *source,int *dest) |
| 96 | { |
| 97 | *dest = trunc(*source); |
| 98 | } |
| 99 | void ceil_l_d(double *source,long long *dest) |
| 100 | { |
| 101 | *dest = ceil(*source); |
| 102 | } |
| 103 | void ceil_w_d(double *source,int *dest) |
| 104 | { |
| 105 | *dest = ceil(*source); |
| 106 | } |
| 107 | void floor_l_d(double *source,long long *dest) |
| 108 | { |
| 109 | *dest = floor(*source); |
| 110 | } |
| 111 | void floor_w_d(double *source,int *dest) |
| 112 | { |
| 113 | *dest = floor(*source); |
| 114 | } |
| 115 | |
| 116 | void cvt_w_s(float *source,int *dest) |
| 117 | { |
| 118 | switch(FCR31&3) |
| 119 | { |
| 120 | case 0: round_w_s(source,dest);return; |
| 121 | case 1: trunc_w_s(source,dest);return; |
| 122 | case 2: ceil_w_s(source,dest);return; |
| 123 | case 3: floor_w_s(source,dest);return; |
| 124 | } |
| 125 | } |
| 126 | void cvt_w_d(double *source,int *dest) |
| 127 | { |
| 128 | switch(FCR31&3) |
| 129 | { |
| 130 | case 0: round_w_d(source,dest);return; |
| 131 | case 1: trunc_w_d(source,dest);return; |
| 132 | case 2: ceil_w_d(source,dest);return; |
| 133 | case 3: floor_w_d(source,dest);return; |
| 134 | } |
| 135 | } |
| 136 | void cvt_l_s(float *source,long long *dest) |
| 137 | { |
| 138 | switch(FCR31&3) |
| 139 | { |
| 140 | case 0: round_l_s(source,dest);return; |
| 141 | case 1: trunc_l_s(source,dest);return; |
| 142 | case 2: ceil_l_s(source,dest);return; |
| 143 | case 3: floor_l_s(source,dest);return; |
| 144 | } |
| 145 | } |
| 146 | void cvt_l_d(double *source,long long *dest) |
| 147 | { |
| 148 | switch(FCR31&3) |
| 149 | { |
| 150 | case 0: round_l_d(source,dest);return; |
| 151 | case 1: trunc_l_d(source,dest);return; |
| 152 | case 2: ceil_l_d(source,dest);return; |
| 153 | case 3: floor_l_d(source,dest);return; |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | void c_f_s() |
| 158 | { |
| 159 | FCR31 &= ~0x800000; |
| 160 | } |
| 161 | void c_un_s(float *source,float *target) |
| 162 | { |
| 163 | FCR31=(isnan(*source) || isnan(*target)) ? FCR31|0x800000 : FCR31&~0x800000; |
| 164 | } |
| 165 | |
| 166 | void c_eq_s(float *source,float *target) |
| 167 | { |
| 168 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 169 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 170 | } |
| 171 | void c_ueq_s(float *source,float *target) |
| 172 | { |
| 173 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 174 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 175 | } |
| 176 | |
| 177 | void c_olt_s(float *source,float *target) |
| 178 | { |
| 179 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 180 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 181 | } |
| 182 | void c_ult_s(float *source,float *target) |
| 183 | { |
| 184 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 185 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 186 | } |
| 187 | |
| 188 | void c_ole_s(float *source,float *target) |
| 189 | { |
| 190 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 191 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 192 | } |
| 193 | void c_ule_s(float *source,float *target) |
| 194 | { |
| 195 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 196 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 197 | } |
| 198 | |
| 199 | void c_sf_s(float *source,float *target) |
| 200 | { |
| 201 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 202 | FCR31&=~0x800000; |
| 203 | } |
| 204 | void c_ngle_s(float *source,float *target) |
| 205 | { |
| 206 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 207 | FCR31&=~0x800000; |
| 208 | } |
| 209 | |
| 210 | void c_seq_s(float *source,float *target) |
| 211 | { |
| 212 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 213 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 214 | } |
| 215 | void c_ngl_s(float *source,float *target) |
| 216 | { |
| 217 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 218 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 219 | } |
| 220 | |
| 221 | void c_lt_s(float *source,float *target) |
| 222 | { |
| 223 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 224 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 225 | } |
| 226 | void c_nge_s(float *source,float *target) |
| 227 | { |
| 228 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 229 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 230 | } |
| 231 | |
| 232 | void c_le_s(float *source,float *target) |
| 233 | { |
| 234 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 235 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 236 | } |
| 237 | void c_ngt_s(float *source,float *target) |
| 238 | { |
| 239 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 240 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 241 | } |
| 242 | |
| 243 | void c_f_d() |
| 244 | { |
| 245 | FCR31 &= ~0x800000; |
| 246 | } |
| 247 | void c_un_d(double *source,double *target) |
| 248 | { |
| 249 | FCR31=(isnan(*source) || isnan(*target)) ? FCR31|0x800000 : FCR31&~0x800000; |
| 250 | } |
| 251 | |
| 252 | void c_eq_d(double *source,double *target) |
| 253 | { |
| 254 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 255 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 256 | } |
| 257 | void c_ueq_d(double *source,double *target) |
| 258 | { |
| 259 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 260 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 261 | } |
| 262 | |
| 263 | void c_olt_d(double *source,double *target) |
| 264 | { |
| 265 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 266 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 267 | } |
| 268 | void c_ult_d(double *source,double *target) |
| 269 | { |
| 270 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 271 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 272 | } |
| 273 | |
| 274 | void c_ole_d(double *source,double *target) |
| 275 | { |
| 276 | if (isnan(*source) || isnan(*target)) {FCR31&=~0x800000;return;} |
| 277 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 278 | } |
| 279 | void c_ule_d(double *source,double *target) |
| 280 | { |
| 281 | if (isnan(*source) || isnan(*target)) {FCR31|=0x800000;return;} |
| 282 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 283 | } |
| 284 | |
| 285 | void c_sf_d(double *source,double *target) |
| 286 | { |
| 287 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 288 | FCR31&=~0x800000; |
| 289 | } |
| 290 | void c_ngle_d(double *source,double *target) |
| 291 | { |
| 292 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 293 | FCR31&=~0x800000; |
| 294 | } |
| 295 | |
| 296 | void c_seq_d(double *source,double *target) |
| 297 | { |
| 298 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 299 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 300 | } |
| 301 | void c_ngl_d(double *source,double *target) |
| 302 | { |
| 303 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 304 | FCR31 = *source==*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 305 | } |
| 306 | |
| 307 | void c_lt_d(double *source,double *target) |
| 308 | { |
| 309 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 310 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 311 | } |
| 312 | void c_nge_d(double *source,double *target) |
| 313 | { |
| 314 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 315 | FCR31 = *source<*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 316 | } |
| 317 | |
| 318 | void c_le_d(double *source,double *target) |
| 319 | { |
| 320 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 321 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 322 | } |
| 323 | void c_ngt_d(double *source,double *target) |
| 324 | { |
| 325 | //if (isnan(*source) || isnan(*target)) // FIXME - exception |
| 326 | FCR31 = *source<=*target ? FCR31|0x800000 : FCR31&~0x800000; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | void add_s(float *source1,float *source2,float *target) |
| 331 | { |
| 332 | *target=(*source1)+(*source2); |
| 333 | } |
| 334 | void sub_s(float *source1,float *source2,float *target) |
| 335 | { |
| 336 | *target=(*source1)-(*source2); |
| 337 | } |
| 338 | void mul_s(float *source1,float *source2,float *target) |
| 339 | { |
| 340 | *target=(*source1)*(*source2); |
| 341 | } |
| 342 | void div_s(float *source1,float *source2,float *target) |
| 343 | { |
| 344 | *target=(*source1)/(*source2); |
| 345 | } |
| 346 | void sqrt_s(float *source,float *target) |
| 347 | { |
| 348 | *target=sqrtf(*source); |
| 349 | } |
| 350 | void abs_s(float *source,float *target) |
| 351 | { |
| 352 | *target=fabsf(*source); |
| 353 | } |
| 354 | void mov_s(float *source,float *target) |
| 355 | { |
| 356 | *target=*source; |
| 357 | } |
| 358 | void neg_s(float *source,float *target) |
| 359 | { |
| 360 | *target=-(*source); |
| 361 | } |
| 362 | void add_d(double *source1,double *source2,double *target) |
| 363 | { |
| 364 | *target=(*source1)+(*source2); |
| 365 | } |
| 366 | void sub_d(double *source1,double *source2,double *target) |
| 367 | { |
| 368 | *target=(*source1)-(*source2); |
| 369 | } |
| 370 | void mul_d(double *source1,double *source2,double *target) |
| 371 | { |
| 372 | *target=(*source1)*(*source2); |
| 373 | } |
| 374 | void div_d(double *source1,double *source2,double *target) |
| 375 | { |
| 376 | *target=(*source1)/(*source2); |
| 377 | } |
| 378 | void sqrt_d(double *source,double *target) |
| 379 | { |
| 380 | *target=sqrt(*source); |
| 381 | } |
| 382 | void abs_d(double *source,double *target) |
| 383 | { |
| 384 | *target=fabs(*source); |
| 385 | } |
| 386 | void mov_d(double *source,double *target) |
| 387 | { |
| 388 | *target=*source; |
| 389 | } |
| 390 | void neg_d(double *source,double *target) |
| 391 | { |
| 392 | *target=-(*source); |
| 393 | } |
| 394 | |