1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2015 Google, Inc 4 * 5 * Dhrystone is widely available in the public domain. A GPL license is 6 * chosen for U-Boot. 7 */ 8 9 /***************************************************************************** 10 * The BYTE UNIX Benchmarks - Release 3 11 * Module: dhry_1.c SID: 3.4 5/15/91 19:30:21 12 * 13 ***************************************************************************** 14 * Bug reports, patches, comments, suggestions should be sent to: 15 * 16 * Ben Smith, Rick Grehan or Tom Yager 17 * ben (at) bytepb.byte.com rick_g (at) bytepb.byte.com tyager (at) bytepb.byte.com 18 * 19 ***************************************************************************** 20 * 21 * *** WARNING **** With BYTE's modifications applied, results obtained with 22 * ******* this version of the Dhrystone program may not be applicable 23 * to other versions. 24 * 25 * Modification Log: 26 * 10/22/97 - code cleanup to remove ANSI C compiler warnings 27 * Andy Kahn <kahn (at) zk3.dec.com> 28 * 29 * Adapted from: 30 * 31 * "DHRYSTONE" Benchmark Program 32 * ----------------------------- 33 * 34 * Version: C, Version 2.1 35 * 36 * File: dhry_1.c (part 2 of 3) 37 * 38 * Date: May 25, 1988 39 * 40 * Author: Reinhold P. Weicker 41 * 42 ***************************************************************************/ 43 char SCCSid[] = "@(#) @(#)dhry_1.c:3.4 -- 5/15/91 19:30:21"; 44 45 #include <common.h> 46 #include <malloc.h> 47 48 #include "dhry.h" 49 50 unsigned long Run_Index; 51 52 void report(void) 53 { 54 printf("%ld loops\n", Run_Index); 55 } 56 57 /* Global Variables: */ 58 59 Rec_Pointer Ptr_Glob, 60 Next_Ptr_Glob; 61 int Int_Glob; 62 Boolean Bool_Glob; 63 char Ch_1_Glob, 64 Ch_2_Glob; 65 int Arr_1_Glob [50]; 66 int Arr_2_Glob [50] [50]; 67 68 Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val); 69 /* forward declaration necessary since Enumeration may not simply be int */ 70 71 #ifndef REG 72 Boolean Reg = false; 73 #define REG 74 /* REG becomes defined as empty */ 75 /* i.e. no register variables */ 76 #else 77 Boolean Reg = true; 78 #endif 79 80 /* variables for time measurement: */ 81 82 #ifdef TIMES 83 #define Too_Small_Time 120 84 /* Measurements should last at least about 2 seconds */ 85 #endif 86 #ifdef TIME 87 extern long time(); 88 /* see library function "time" */ 89 #define Too_Small_Time 2 90 /* Measurements should last at least 2 seconds */ 91 #endif 92 93 long Begin_Time, 94 End_Time, 95 User_Time; 96 97 /* end of variables for time measurement */ 98 99 void Proc_1 (REG Rec_Pointer Ptr_Val_Par); 100 void Proc_2 (One_Fifty *Int_Par_Ref); 101 void Proc_3 (Rec_Pointer *Ptr_Ref_Par); 102 void Proc_4 (void); 103 void Proc_5 (void); 104 105 106 extern Boolean Func_2(Str_30, Str_30); 107 extern void Proc_6(Enumeration, Enumeration *); 108 extern void Proc_7(One_Fifty, One_Fifty, One_Fifty *); 109 extern void Proc_8(Arr_1_Dim, Arr_2_Dim, int, int); 110 111 void dhry(int Number_Of_Runs) 112 /* main program, corresponds to procedures */ 113 /* Main and Proc_0 in the Ada version */ 114 { 115 One_Fifty Int_1_Loc; 116 REG One_Fifty Int_2_Loc; 117 One_Fifty Int_3_Loc; 118 REG char Ch_Index; 119 Enumeration Enum_Loc; 120 Str_30 Str_1_Loc; 121 Str_30 Str_2_Loc; 122 123 /* Initializations */ 124 125 Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); 126 Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); 127 128 Ptr_Glob->Ptr_Comp = Next_Ptr_Glob; 129 Ptr_Glob->Discr = Ident_1; 130 Ptr_Glob->variant.var_1.Enum_Comp = Ident_3; 131 Ptr_Glob->variant.var_1.Int_Comp = 40; 132 strcpy (Ptr_Glob->variant.var_1.Str_Comp, 133 "DHRYSTONE PROGRAM, SOME STRING"); 134 strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING"); 135 136 Arr_2_Glob [8][7] = 10; 137 /* Was missing in published program. Without this statement, */ 138 /* Arr_2_Glob [8][7] would have an undefined value. */ 139 /* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */ 140 /* overflow may occur for this array element. */ 141 142 #ifdef PRATTLE 143 printf ("\n"); 144 printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n"); 145 printf ("\n"); 146 if (Reg) 147 { 148 printf ("Program compiled with 'register' attribute\n"); 149 printf ("\n"); 150 } 151 else 152 { 153 printf ("Program compiled without 'register' attribute\n"); 154 printf ("\n"); 155 } 156 printf ("Please give the number of runs through the benchmark: "); 157 { 158 int n; 159 scanf ("%d", &n); 160 Number_Of_Runs = n; 161 } 162 printf ("\n"); 163 164 printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs); 165 #endif /* PRATTLE */ 166 167 Run_Index = 0; 168 169 /***************/ 170 /* Start timer */ 171 /***************/ 172 173 #ifdef SELF_TIMED 174 #ifdef TIMES 175 times (&time_info); 176 Begin_Time = (long) time_info.tms_utime; 177 #endif 178 #ifdef TIME 179 Begin_Time = time ( (long *) 0); 180 #endif 181 #endif /* SELF_TIMED */ 182 183 for (Run_Index = 1; Run_Index < Number_Of_Runs; ++Run_Index) 184 { 185 186 Proc_5(); 187 Proc_4(); 188 /* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */ 189 Int_1_Loc = 2; 190 Int_2_Loc = 3; 191 strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING"); 192 Enum_Loc = Ident_2; 193 Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc); 194 /* Bool_Glob == 1 */ 195 while (Int_1_Loc < Int_2_Loc) /* loop body executed once */ 196 { 197 Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc; 198 /* Int_3_Loc == 7 */ 199 Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc); 200 /* Int_3_Loc == 7 */ 201 Int_1_Loc += 1; 202 } /* while */ 203 /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ 204 Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc); 205 /* Int_Glob == 5 */ 206 Proc_1 (Ptr_Glob); 207 for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index) 208 /* loop body executed twice */ 209 { 210 if (Enum_Loc == Func_1 (Ch_Index, 'C')) 211 /* then, not executed */ 212 { 213 Proc_6 (Ident_1, &Enum_Loc); 214 strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING"); 215 Int_2_Loc = Run_Index; 216 Int_Glob = Run_Index; 217 } 218 } 219 /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ 220 Int_2_Loc = Int_2_Loc * Int_1_Loc; 221 Int_1_Loc = Int_2_Loc / Int_3_Loc; 222 Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc; 223 /* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */ 224 Proc_2 (&Int_1_Loc); 225 /* Int_1_Loc == 5 */ 226 227 } /* loop "for Run_Index" */ 228 229 /**************/ 230 /* Stop timer */ 231 /**************/ 232 #ifdef SELF_TIMED 233 #ifdef TIMES 234 times (&time_info); 235 End_Time = (long) time_info.tms_utime; 236 #endif 237 #ifdef TIME 238 End_Time = time ( (long *) 0); 239 #endif 240 #endif /* SELF_TIMED */ 241 242 /* BYTE version never executes this stuff */ 243 #ifdef SELF_TIMED 244 printf ("Execution ends\n"); 245 printf ("\n"); 246 printf ("Final values of the variables used in the benchmark:\n"); 247 printf ("\n"); 248 printf ("Int_Glob: %d\n", Int_Glob); 249 printf (" should be: %d\n", 5); 250 printf ("Bool_Glob: %d\n", Bool_Glob); 251 printf (" should be: %d\n", 1); 252 printf ("Ch_1_Glob: %c\n", Ch_1_Glob); 253 printf (" should be: %c\n", 'A'); 254 printf ("Ch_2_Glob: %c\n", Ch_2_Glob); 255 printf (" should be: %c\n", 'B'); 256 printf ("Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]); 257 printf (" should be: %d\n", 7); 258 printf ("Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]); 259 printf (" should be: Number_Of_Runs + 10\n"); 260 printf ("Ptr_Glob->\n"); 261 printf (" Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp); 262 printf (" should be: (implementation-dependent)\n"); 263 printf (" Discr: %d\n", Ptr_Glob->Discr); 264 printf (" should be: %d\n", 0); 265 printf (" Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp); 266 printf (" should be: %d\n", 2); 267 printf (" Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp); 268 printf (" should be: %d\n", 17); 269 printf (" Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp); 270 printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); 271 printf ("Next_Ptr_Glob->\n"); 272 printf (" Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp); 273 printf (" should be: (implementation-dependent), same as above\n"); 274 printf (" Discr: %d\n", Next_Ptr_Glob->Discr); 275 printf (" should be: %d\n", 0); 276 printf (" Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp); 277 printf (" should be: %d\n", 1); 278 printf (" Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp); 279 printf (" should be: %d\n", 18); 280 printf (" Str_Comp: %s\n", 281 Next_Ptr_Glob->variant.var_1.Str_Comp); 282 printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); 283 printf ("Int_1_Loc: %d\n", Int_1_Loc); 284 printf (" should be: %d\n", 5); 285 printf ("Int_2_Loc: %d\n", Int_2_Loc); 286 printf (" should be: %d\n", 13); 287 printf ("Int_3_Loc: %d\n", Int_3_Loc); 288 printf (" should be: %d\n", 7); 289 printf ("Enum_Loc: %d\n", Enum_Loc); 290 printf (" should be: %d\n", 1); 291 printf ("Str_1_Loc: %s\n", Str_1_Loc); 292 printf (" should be: DHRYSTONE PROGRAM, 1'ST STRING\n"); 293 printf ("Str_2_Loc: %s\n", Str_2_Loc); 294 printf (" should be: DHRYSTONE PROGRAM, 2'ND STRING\n"); 295 printf ("\n"); 296 297 User_Time = End_Time - Begin_Time; 298 299 if (User_Time < Too_Small_Time) 300 { 301 printf ("Measured time too small to obtain meaningful results\n"); 302 printf ("Please increase number of runs\n"); 303 printf ("\n"); 304 } 305 else 306 { 307 #ifdef TIME 308 Microseconds = (float) User_Time * Mic_secs_Per_Second 309 / (float) Number_Of_Runs; 310 Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time; 311 #else 312 Microseconds = (float) User_Time * Mic_secs_Per_Second 313 / ((float) HZ * ((float) Number_Of_Runs)); 314 Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs) 315 / (float) User_Time; 316 #endif 317 printf ("Microseconds for one run through Dhrystone: "); 318 printf ("%6.1f \n", Microseconds); 319 printf ("Dhrystones per Second: "); 320 printf ("%6.1f \n", Dhrystones_Per_Second); 321 printf ("\n"); 322 } 323 #endif /* SELF_TIMED */ 324 } 325 326 327 void Proc_1 (REG Rec_Pointer Ptr_Val_Par) 328 /* executed once */ 329 { 330 REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp; 331 /* == Ptr_Glob_Next */ 332 /* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */ 333 /* corresponds to "rename" in Ada, "with" in Pascal */ 334 335 structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob); 336 Ptr_Val_Par->variant.var_1.Int_Comp = 5; 337 Next_Record->variant.var_1.Int_Comp 338 = Ptr_Val_Par->variant.var_1.Int_Comp; 339 Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp; 340 Proc_3 (&Next_Record->Ptr_Comp); 341 /* Ptr_Val_Par->Ptr_Comp->Ptr_Comp 342 == Ptr_Glob->Ptr_Comp */ 343 if (Next_Record->Discr == Ident_1) 344 /* then, executed */ 345 { 346 Next_Record->variant.var_1.Int_Comp = 6; 347 Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp, 348 &Next_Record->variant.var_1.Enum_Comp); 349 Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp; 350 Proc_7 (Next_Record->variant.var_1.Int_Comp, 10, 351 &Next_Record->variant.var_1.Int_Comp); 352 } 353 else /* not executed */ 354 structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp); 355 } /* Proc_1 */ 356 357 358 void Proc_2 (One_Fifty *Int_Par_Ref) 359 /* executed once */ 360 /* *Int_Par_Ref == 1, becomes 4 */ 361 { 362 One_Fifty Int_Loc; 363 Enumeration Enum_Loc; 364 365 Enum_Loc = 0; 366 367 Int_Loc = *Int_Par_Ref + 10; 368 do /* executed once */ 369 if (Ch_1_Glob == 'A') 370 /* then, executed */ 371 { 372 Int_Loc -= 1; 373 *Int_Par_Ref = Int_Loc - Int_Glob; 374 Enum_Loc = Ident_1; 375 } /* if */ 376 while (Enum_Loc != Ident_1); /* true */ 377 } /* Proc_2 */ 378 379 380 void Proc_3 (Rec_Pointer *Ptr_Ref_Par) 381 /* executed once */ 382 /* Ptr_Ref_Par becomes Ptr_Glob */ 383 { 384 if (Ptr_Glob != Null) 385 /* then, executed */ 386 *Ptr_Ref_Par = Ptr_Glob->Ptr_Comp; 387 Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp); 388 } /* Proc_3 */ 389 390 391 void Proc_4 (void) /* without parameters */ 392 /* executed once */ 393 { 394 Boolean Bool_Loc; 395 396 Bool_Loc = Ch_1_Glob == 'A'; 397 Bool_Glob = Bool_Loc | Bool_Glob; 398 Ch_2_Glob = 'B'; 399 } /* Proc_4 */ 400 401 void Proc_5 (void) /* without parameters */ 402 /*******/ 403 /* executed once */ 404 { 405 Ch_1_Glob = 'A'; 406 Bool_Glob = false; 407 } /* Proc_5 */ 408 409 410 /* Procedure for the assignment of structures, */ 411 /* if the C compiler doesn't support this feature */ 412 #ifdef NOSTRUCTASSIGN 413 memcpy (d, s, l) 414 register char *d; 415 register char *s; 416 register int l; 417 { 418 while (l--) *d++ = *s++; 419 } 420 #endif 421
