Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* Copyright (C) 2003 Jean-Marc Valin */ |
| 2 | /** |
| 3 | @file fixed_debug.h |
| 4 | @brief Fixed-point operations with debugging |
| 5 | */ |
| 6 | /* |
| 7 | Redistribution and use in source and binary forms, with or without |
| 8 | modification, are permitted provided that the following conditions |
| 9 | are met: |
| 10 | |
| 11 | - Redistributions of source code must retain the above copyright |
| 12 | notice, this list of conditions and the following disclaimer. |
| 13 | |
| 14 | - Redistributions in binary form must reproduce the above copyright |
| 15 | notice, this list of conditions and the following disclaimer in the |
| 16 | documentation and/or other materials provided with the distribution. |
| 17 | |
| 18 | - Neither the name of the Xiph.org Foundation nor the names of its |
| 19 | contributors may be used to endorse or promote products derived from |
| 20 | this software without specific prior written permission. |
| 21 | |
| 22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 23 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 25 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| 26 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 27 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 28 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 29 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 30 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 31 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 32 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 33 | */ |
| 34 | |
| 35 | #ifndef FIXED_DEBUG_H |
| 36 | #define FIXED_DEBUG_H |
| 37 | |
| 38 | #include <stdio.h> |
| 39 | |
| 40 | extern long long spx_mips; |
| 41 | #define MIPS_INC spx_mips++, |
| 42 | |
| 43 | #define QCONST16(x,bits) ((spx_word16_t)(.5+(x)*(((spx_word32_t)1)<<(bits)))) |
| 44 | #define QCONST32(x,bits) ((spx_word32_t)(.5+(x)*(((spx_word32_t)1)<<(bits)))) |
| 45 | |
| 46 | |
| 47 | #define VERIFY_SHORT(x) ((x)<=32767&&(x)>=-32768) |
| 48 | #define VERIFY_INT(x) ((x)<=2147483647LL&&(x)>=-2147483648LL) |
| 49 | |
| 50 | static inline short NEG16(int x) |
| 51 | { |
| 52 | int res; |
| 53 | if (!VERIFY_SHORT(x)) |
| 54 | { |
| 55 | fprintf (stderr, "NEG16: input is not short: %d\n", (int)x); |
| 56 | } |
| 57 | res = -x; |
| 58 | if (!VERIFY_SHORT(res)) |
| 59 | fprintf (stderr, "NEG16: output is not short: %d\n", (int)res); |
| 60 | spx_mips++; |
| 61 | return res; |
| 62 | } |
| 63 | static inline int NEG32(long long x) |
| 64 | { |
| 65 | long long res; |
| 66 | if (!VERIFY_INT(x)) |
| 67 | { |
| 68 | fprintf (stderr, "NEG16: input is not int: %d\n", (int)x); |
| 69 | } |
| 70 | res = -x; |
| 71 | if (!VERIFY_INT(res)) |
| 72 | fprintf (stderr, "NEG16: output is not int: %d\n", (int)res); |
| 73 | spx_mips++; |
| 74 | return res; |
| 75 | } |
| 76 | |
| 77 | #define EXTRACT16(x) _EXTRACT16(x, __FILE__, __LINE__) |
| 78 | static inline short _EXTRACT16(int x, char *file, int line) |
| 79 | { |
| 80 | int res; |
| 81 | if (!VERIFY_SHORT(x)) |
| 82 | { |
| 83 | fprintf (stderr, "EXTRACT16: input is not short: %d in %s: line %d\n", x, file, line); |
| 84 | } |
| 85 | res = x; |
| 86 | spx_mips++; |
| 87 | return res; |
| 88 | } |
| 89 | |
| 90 | #define EXTEND32(x) _EXTEND32(x, __FILE__, __LINE__) |
| 91 | static inline int _EXTEND32(int x, char *file, int line) |
| 92 | { |
| 93 | int res; |
| 94 | if (!VERIFY_SHORT(x)) |
| 95 | { |
| 96 | fprintf (stderr, "EXTEND32: input is not short: %d in %s: line %d\n", x, file, line); |
| 97 | } |
| 98 | res = x; |
| 99 | spx_mips++; |
| 100 | return res; |
| 101 | } |
| 102 | |
| 103 | #define SHR16(a, shift) _SHR16(a, shift, __FILE__, __LINE__) |
| 104 | static inline short _SHR16(int a, int shift, char *file, int line) |
| 105 | { |
| 106 | int res; |
| 107 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(shift)) |
| 108 | { |
| 109 | fprintf (stderr, "SHR16: inputs are not short: %d >> %d in %s: line %d\n", a, shift, file, line); |
| 110 | } |
| 111 | res = a>>shift; |
| 112 | if (!VERIFY_SHORT(res)) |
| 113 | fprintf (stderr, "SHR16: output is not short: %d in %s: line %d\n", res, file, line); |
| 114 | spx_mips++; |
| 115 | return res; |
| 116 | } |
| 117 | #define SHL16(a, shift) _SHL16(a, shift, __FILE__, __LINE__) |
| 118 | static inline short _SHL16(int a, int shift, char *file, int line) |
| 119 | { |
| 120 | int res; |
| 121 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(shift)) |
| 122 | { |
| 123 | fprintf (stderr, "SHL16: inputs are not short: %d %d in %s: line %d\n", a, shift, file, line); |
| 124 | } |
| 125 | res = a<<shift; |
| 126 | if (!VERIFY_SHORT(res)) |
| 127 | fprintf (stderr, "SHL16: output is not short: %d in %s: line %d\n", res, file, line); |
| 128 | spx_mips++; |
| 129 | return res; |
| 130 | } |
| 131 | |
| 132 | static inline int SHR32(long long a, int shift) |
| 133 | { |
| 134 | long long res; |
| 135 | if (!VERIFY_INT(a) || !VERIFY_SHORT(shift)) |
| 136 | { |
| 137 | fprintf (stderr, "SHR32: inputs are not int: %d %d\n", (int)a, shift); |
| 138 | } |
| 139 | res = a>>shift; |
| 140 | if (!VERIFY_INT(res)) |
| 141 | { |
| 142 | fprintf (stderr, "SHR32: output is not int: %d\n", (int)res); |
| 143 | } |
| 144 | spx_mips++; |
| 145 | return res; |
| 146 | } |
| 147 | static inline int SHL32(long long a, int shift) |
| 148 | { |
| 149 | long long res; |
| 150 | if (!VERIFY_INT(a) || !VERIFY_SHORT(shift)) |
| 151 | { |
| 152 | fprintf (stderr, "SHL32: inputs are not int: %d %d\n", (int)a, shift); |
| 153 | } |
| 154 | res = a<<shift; |
| 155 | if (!VERIFY_INT(res)) |
| 156 | { |
| 157 | fprintf (stderr, "SHL32: output is not int: %d\n", (int)res); |
| 158 | } |
| 159 | spx_mips++; |
| 160 | return res; |
| 161 | } |
| 162 | |
| 163 | #define PSHR16(a,shift) (SHR16(ADD16((a),((1<<((shift))>>1))),shift)) |
| 164 | #define PSHR32(a,shift) (SHR32(ADD32((a),((EXTEND32(1)<<((shift))>>1))),shift)) |
| 165 | #define VSHR32(a, shift) (((shift)>0) ? SHR32(a, shift) : SHL32(a, -(shift))) |
| 166 | |
| 167 | #define SATURATE16(x,a) (((x)>(a) ? (a) : (x)<-(a) ? -(a) : (x))) |
| 168 | #define SATURATE32(x,a) (((x)>(a) ? (a) : (x)<-(a) ? -(a) : (x))) |
| 169 | |
| 170 | //#define SHR(a,shift) ((a) >> (shift)) |
| 171 | //#define SHL(a,shift) ((a) << (shift)) |
| 172 | |
| 173 | #define ADD16(a, b) _ADD16(a, b, __FILE__, __LINE__) |
| 174 | static inline short _ADD16(int a, int b, char *file, int line) |
| 175 | { |
| 176 | int res; |
| 177 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 178 | { |
| 179 | fprintf (stderr, "ADD16: inputs are not short: %d %d in %s: line %d\n", a, b, file, line); |
| 180 | } |
| 181 | res = a+b; |
| 182 | if (!VERIFY_SHORT(res)) |
| 183 | { |
| 184 | fprintf (stderr, "ADD16: output is not short: %d+%d=%d in %s: line %d\n", a,b,res, file, line); |
| 185 | } |
| 186 | spx_mips++; |
| 187 | return res; |
| 188 | } |
| 189 | |
| 190 | #define SUB16(a, b) _SUB16(a, b, __FILE__, __LINE__) |
| 191 | static inline short _SUB16(int a, int b, char *file, int line) |
| 192 | { |
| 193 | int res; |
| 194 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 195 | { |
| 196 | fprintf (stderr, "SUB16: inputs are not short: %d %d in %s: line %d\n", a, b, file, line); |
| 197 | } |
| 198 | res = a-b; |
| 199 | if (!VERIFY_SHORT(res)) |
| 200 | fprintf (stderr, "SUB16: output is not short: %d in %s: line %d\n", res, file, line); |
| 201 | spx_mips++; |
| 202 | return res; |
| 203 | } |
| 204 | |
| 205 | #define ADD32(a, b) _ADD32(a, b, __FILE__, __LINE__) |
| 206 | static inline int _ADD32(long long a, long long b, char *file, int line) |
| 207 | { |
| 208 | long long res; |
| 209 | if (!VERIFY_INT(a) || !VERIFY_INT(b)) |
| 210 | { |
| 211 | fprintf (stderr, "ADD32: inputs are not int: %d %d in %s: line %d\n", (int)a, (int)b, file, line); |
| 212 | } |
| 213 | res = a+b; |
| 214 | if (!VERIFY_INT(res)) |
| 215 | { |
| 216 | fprintf (stderr, "ADD32: output is not int: %d in %s: line %d\n", (int)res, file, line); |
| 217 | } |
| 218 | spx_mips++; |
| 219 | return res; |
| 220 | } |
| 221 | |
| 222 | static inline int SUB32(long long a, long long b) |
| 223 | { |
| 224 | long long res; |
| 225 | if (!VERIFY_INT(a) || !VERIFY_INT(b)) |
| 226 | { |
| 227 | fprintf (stderr, "SUB32: inputs are not int: %d %d\n", (int)a, (int)b); |
| 228 | } |
| 229 | res = a-b; |
| 230 | if (!VERIFY_INT(res)) |
| 231 | fprintf (stderr, "SUB32: output is not int: %d\n", (int)res); |
| 232 | spx_mips++; |
| 233 | return res; |
| 234 | } |
| 235 | |
| 236 | #define ADD64(a,b) (MIPS_INC(a)+(b)) |
| 237 | |
| 238 | /* result fits in 16 bits */ |
| 239 | static inline short MULT16_16_16(int a, int b) |
| 240 | { |
| 241 | int res; |
| 242 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 243 | { |
| 244 | fprintf (stderr, "MULT16_16_16: inputs are not short: %d %d\n", a, b); |
| 245 | } |
| 246 | res = a*b; |
| 247 | if (!VERIFY_SHORT(res)) |
| 248 | fprintf (stderr, "MULT16_16_16: output is not short: %d\n", res); |
| 249 | spx_mips++; |
| 250 | return res; |
| 251 | } |
| 252 | |
| 253 | #define MULT16_16(a, b) _MULT16_16(a, b, __FILE__, __LINE__) |
| 254 | static inline int _MULT16_16(int a, int b, char *file, int line) |
| 255 | { |
| 256 | long long res; |
| 257 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 258 | { |
| 259 | fprintf (stderr, "MULT16_16: inputs are not short: %d %d in %s: line %d\n", a, b, file, line); |
| 260 | } |
| 261 | res = ((long long)a)*b; |
| 262 | if (!VERIFY_INT(res)) |
| 263 | fprintf (stderr, "MULT16_16: output is not int: %d in %s: line %d\n", (int)res, file, line); |
| 264 | spx_mips++; |
| 265 | return res; |
| 266 | } |
| 267 | |
| 268 | #define MAC16_16(c,a,b) (spx_mips--,ADD32((c),MULT16_16((a),(b)))) |
| 269 | #define MAC16_16_Q11(c,a,b) (EXTRACT16(ADD16((c),EXTRACT16(SHR32(MULT16_16((a),(b)),11))))) |
| 270 | #define MAC16_16_Q13(c,a,b) (EXTRACT16(ADD16((c),EXTRACT16(SHR32(MULT16_16((a),(b)),13))))) |
| 271 | #define MAC16_16_P13(c,a,b) (EXTRACT16(ADD32((c),SHR32(ADD32(4096,MULT16_16((a),(b))),13)))) |
| 272 | |
| 273 | |
| 274 | #define MULT16_32_QX(a, b, Q) _MULT16_32_QX(a, b, Q, __FILE__, __LINE__) |
| 275 | static inline int _MULT16_32_QX(int a, long long b, int Q, char *file, int line) |
| 276 | { |
| 277 | long long res; |
| 278 | if (!VERIFY_SHORT(a) || !VERIFY_INT(b)) |
| 279 | { |
| 280 | fprintf (stderr, "MULT16_32_Q%d: inputs are not short+int: %d %d in %s: line %d\n", Q, (int)a, (int)b, file, line); |
| 281 | } |
| 282 | if (ABS32(b)>=(EXTEND32(1)<<(15+Q))) |
| 283 | fprintf (stderr, "MULT16_32_Q%d: second operand too large: %d %d in %s: line %d\n", Q, (int)a, (int)b, file, line); |
| 284 | res = (((long long)a)*(long long)b) >> Q; |
| 285 | if (!VERIFY_INT(res)) |
| 286 | fprintf (stderr, "MULT16_32_Q%d: output is not int: %d*%d=%d in %s: line %d\n", Q, (int)a, (int)b,(int)res, file, line); |
| 287 | spx_mips+=5; |
| 288 | return res; |
| 289 | } |
| 290 | |
| 291 | static inline int MULT16_32_PX(int a, long long b, int Q) |
| 292 | { |
| 293 | long long res; |
| 294 | if (!VERIFY_SHORT(a) || !VERIFY_INT(b)) |
| 295 | { |
| 296 | fprintf (stderr, "MULT16_32_P%d: inputs are not short+int: %d %d\n", Q, (int)a, (int)b); |
| 297 | } |
| 298 | if (ABS32(b)>=(EXTEND32(1)<<(15+Q))) |
| 299 | fprintf (stderr, "MULT16_32_Q%d: second operand too large: %d %d\n", Q, (int)a, (int)b); |
| 300 | res = ((((long long)a)*(long long)b) + ((EXTEND32(1)<<Q)>>1))>> Q; |
| 301 | if (!VERIFY_INT(res)) |
| 302 | fprintf (stderr, "MULT16_32_P%d: output is not int: %d*%d=%d\n", Q, (int)a, (int)b,(int)res); |
| 303 | spx_mips+=5; |
| 304 | return res; |
| 305 | } |
| 306 | |
| 307 | |
| 308 | #define MULT16_32_Q11(a,b) MULT16_32_QX(a,b,11) |
| 309 | #define MAC16_32_Q11(c,a,b) ADD32((c),MULT16_32_Q11((a),(b))) |
| 310 | #define MULT16_32_Q12(a,b) MULT16_32_QX(a,b,12) |
| 311 | #define MULT16_32_Q13(a,b) MULT16_32_QX(a,b,13) |
| 312 | #define MULT16_32_Q14(a,b) MULT16_32_QX(a,b,14) |
| 313 | #define MULT16_32_Q15(a,b) MULT16_32_QX(a,b,15) |
| 314 | #define MULT16_32_P15(a,b) MULT16_32_PX(a,b,15) |
| 315 | #define MAC16_32_Q15(c,a,b) ADD32((c),MULT16_32_Q15((a),(b))) |
| 316 | |
| 317 | static inline int SATURATE(int a, int b) |
| 318 | { |
| 319 | if (a>b) |
| 320 | a=b; |
| 321 | if (a<-b) |
| 322 | a = -b; |
| 323 | return a; |
| 324 | } |
| 325 | |
| 326 | static inline int MULT16_16_Q11_32(int a, int b) |
| 327 | { |
| 328 | long long res; |
| 329 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 330 | { |
| 331 | fprintf (stderr, "MULT16_16_Q11: inputs are not short: %d %d\n", a, b); |
| 332 | } |
| 333 | res = ((long long)a)*b; |
| 334 | res >>= 11; |
| 335 | if (!VERIFY_INT(res)) |
| 336 | fprintf (stderr, "MULT16_16_Q11: output is not short: %d*%d=%d\n", (int)a, (int)b, (int)res); |
| 337 | spx_mips+=3; |
| 338 | return res; |
| 339 | } |
| 340 | static inline short MULT16_16_Q13(int a, int b) |
| 341 | { |
| 342 | long long res; |
| 343 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 344 | { |
| 345 | fprintf (stderr, "MULT16_16_Q13: inputs are not short: %d %d\n", a, b); |
| 346 | } |
| 347 | res = ((long long)a)*b; |
| 348 | res >>= 13; |
| 349 | if (!VERIFY_SHORT(res)) |
| 350 | fprintf (stderr, "MULT16_16_Q13: output is not short: %d*%d=%d\n", a, b, (int)res); |
| 351 | spx_mips+=3; |
| 352 | return res; |
| 353 | } |
| 354 | static inline short MULT16_16_Q14(int a, int b) |
| 355 | { |
| 356 | long long res; |
| 357 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 358 | { |
| 359 | fprintf (stderr, "MULT16_16_Q14: inputs are not short: %d %d\n", a, b); |
| 360 | } |
| 361 | res = ((long long)a)*b; |
| 362 | res >>= 14; |
| 363 | if (!VERIFY_SHORT(res)) |
| 364 | fprintf (stderr, "MULT16_16_Q14: output is not short: %d\n", (int)res); |
| 365 | spx_mips+=3; |
| 366 | return res; |
| 367 | } |
| 368 | static inline short MULT16_16_Q15(int a, int b) |
| 369 | { |
| 370 | long long res; |
| 371 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 372 | { |
| 373 | fprintf (stderr, "MULT16_16_Q15: inputs are not short: %d %d\n", a, b); |
| 374 | } |
| 375 | res = ((long long)a)*b; |
| 376 | res >>= 15; |
| 377 | if (!VERIFY_SHORT(res)) |
| 378 | { |
| 379 | fprintf (stderr, "MULT16_16_Q15: output is not short: %d\n", (int)res); |
| 380 | } |
| 381 | spx_mips+=3; |
| 382 | return res; |
| 383 | } |
| 384 | |
| 385 | static inline short MULT16_16_P13(int a, int b) |
| 386 | { |
| 387 | long long res; |
| 388 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 389 | { |
| 390 | fprintf (stderr, "MULT16_16_P13: inputs are not short: %d %d\n", a, b); |
| 391 | } |
| 392 | res = ((long long)a)*b; |
| 393 | res += 4096; |
| 394 | if (!VERIFY_INT(res)) |
| 395 | fprintf (stderr, "MULT16_16_P13: overflow: %d*%d=%d\n", a, b, (int)res); |
| 396 | res >>= 13; |
| 397 | if (!VERIFY_SHORT(res)) |
| 398 | fprintf (stderr, "MULT16_16_P13: output is not short: %d*%d=%d\n", a, b, (int)res); |
| 399 | spx_mips+=4; |
| 400 | return res; |
| 401 | } |
| 402 | static inline short MULT16_16_P14(int a, int b) |
| 403 | { |
| 404 | long long res; |
| 405 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 406 | { |
| 407 | fprintf (stderr, "MULT16_16_P14: inputs are not short: %d %d\n", a, b); |
| 408 | } |
| 409 | res = ((long long)a)*b; |
| 410 | res += 8192; |
| 411 | if (!VERIFY_INT(res)) |
| 412 | fprintf (stderr, "MULT16_16_P14: overflow: %d*%d=%d\n", a, b, (int)res); |
| 413 | res >>= 14; |
| 414 | if (!VERIFY_SHORT(res)) |
| 415 | fprintf (stderr, "MULT16_16_P14: output is not short: %d*%d=%d\n", a, b, (int)res); |
| 416 | spx_mips+=4; |
| 417 | return res; |
| 418 | } |
| 419 | static inline short MULT16_16_P15(int a, int b) |
| 420 | { |
| 421 | long long res; |
| 422 | if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b)) |
| 423 | { |
| 424 | fprintf (stderr, "MULT16_16_P15: inputs are not short: %d %d\n", a, b); |
| 425 | } |
| 426 | res = ((long long)a)*b; |
| 427 | res += 16384; |
| 428 | if (!VERIFY_INT(res)) |
| 429 | fprintf (stderr, "MULT16_16_P15: overflow: %d*%d=%d\n", a, b, (int)res); |
| 430 | res >>= 15; |
| 431 | if (!VERIFY_SHORT(res)) |
| 432 | fprintf (stderr, "MULT16_16_P15: output is not short: %d*%d=%d\n", a, b, (int)res); |
| 433 | spx_mips+=4; |
| 434 | return res; |
| 435 | } |
| 436 | |
| 437 | #define DIV32_16(a, b) _DIV32_16(a, b, __FILE__, __LINE__) |
| 438 | |
| 439 | static inline int _DIV32_16(long long a, long long b, char *file, int line) |
| 440 | { |
| 441 | long long res; |
| 442 | if (b==0) |
| 443 | { |
| 444 | fprintf(stderr, "DIV32_16: divide by zero: %d/%d in %s: line %d\n", (int)a, (int)b, file, line); |
| 445 | return 0; |
| 446 | } |
| 447 | if (!VERIFY_INT(a) || !VERIFY_SHORT(b)) |
| 448 | { |
| 449 | fprintf (stderr, "DIV32_16: inputs are not int/short: %d %d in %s: line %d\n", (int)a, (int)b, file, line); |
| 450 | } |
| 451 | res = a/b; |
| 452 | if (!VERIFY_SHORT(res)) |
| 453 | { |
| 454 | fprintf (stderr, "DIV32_16: output is not short: %d / %d = %d in %s: line %d\n", (int)a,(int)b,(int)res, file, line); |
| 455 | if (res>32767) |
| 456 | res = 32767; |
| 457 | if (res<-32768) |
| 458 | res = -32768; |
| 459 | } |
| 460 | spx_mips+=20; |
| 461 | return res; |
| 462 | } |
| 463 | |
| 464 | #define DIV32(a, b) _DIV32(a, b, __FILE__, __LINE__) |
| 465 | static inline int _DIV32(long long a, long long b, char *file, int line) |
| 466 | { |
| 467 | long long res; |
| 468 | if (b==0) |
| 469 | { |
| 470 | fprintf(stderr, "DIV32: divide by zero: %d/%d in %s: line %d\n", (int)a, (int)b, file, line); |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | if (!VERIFY_INT(a) || !VERIFY_INT(b)) |
| 475 | { |
| 476 | fprintf (stderr, "DIV32: inputs are not int/short: %d %d in %s: line %d\n", (int)a, (int)b, file, line); |
| 477 | } |
| 478 | res = a/b; |
| 479 | if (!VERIFY_INT(res)) |
| 480 | fprintf (stderr, "DIV32: output is not int: %d in %s: line %d\n", (int)res, file, line); |
| 481 | spx_mips+=36; |
| 482 | return res; |
| 483 | } |
| 484 | #define PDIV32(a,b) DIV32(ADD32((a),(b)>>1),b) |
| 485 | #define PDIV32_16(a,b) DIV32_16(ADD32((a),(b)>>1),b) |
| 486 | |
| 487 | #endif |