1 /* 2 * (C) Copyright 2015 Google, Inc 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 * 6 * Dhrystone is widely available in the public domain. A GPL license is 7 * chosen for U-Boot. 8 */ 9 10 /***************************************************************************** 11 * The BYTE UNIX Benchmarks - Release 3 12 * Module: dhry_1.c SID: 3.4 5/15/91 19:30:21 13 * 14 ***************************************************************************** 15 * Bug reports, patches, comments, suggestions should be sent to: 16 * 17 * Ben Smith, Rick Grehan or Tom Yager 18 * ben@bytepb.byte.com rick_g@bytepb.byte.com tyager@bytepb.byte.com 19 * 20 ***************************************************************************** 21 * 22 * *** WARNING **** With BYTE's modifications applied, results obtained with 23 * ******* this version of the Dhrystone program may not be applicable 24 * to other versions. 25 * 26 * Modification Log: 27 * 10/22/97 - code cleanup to remove ANSI C compiler warnings 28 * Andy Kahn <kahn@zk3.dec.com> 29 * 30 * Adapted from: 31 * 32 * "DHRYSTONE" Benchmark Program 33 * ----------------------------- 34 * 35 * Version: C, Version 2.1 36 * 37 * File: dhry_1.c (part 2 of 3) 38 * 39 * Date: May 25, 1988 40 * 41 * Author: Reinhold P. Weicker 42 * 43 ***************************************************************************/ 44 char SCCSid[] = "@(#) @(#)dhry_1.c:3.4 -- 5/15/91 19:30:21"; 45 46 #include <common.h> 47 #include <malloc.h> 48 49 #include "dhry.h" 50 51 unsigned long Run_Index; 52 53 void report(void) 54 { 55 printf("%ld loops\n", Run_Index); 56 } 57 58 /* Global Variables: */ 59 60 Rec_Pointer Ptr_Glob, 61 Next_Ptr_Glob; 62 int Int_Glob; 63 Boolean Bool_Glob; 64 char Ch_1_Glob, 65 Ch_2_Glob; 66 int Arr_1_Glob [50]; 67 int Arr_2_Glob [50] [50]; 68 69 Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val); 70 /* forward declaration necessary since Enumeration may not simply be int */ 71 72 #ifndef REG 73 Boolean Reg = false; 74 #define REG 75 /* REG becomes defined as empty */ 76 /* i.e. no register variables */ 77 #else 78 Boolean Reg = true; 79 #endif 80 81 /* variables for time measurement: */ 82 83 #ifdef TIMES 84 #define Too_Small_Time 120 85 /* Measurements should last at least about 2 seconds */ 86 #endif 87 #ifdef TIME 88 extern long time(); 89 /* see library function "time" */ 90 #define Too_Small_Time 2 91 /* Measurements should last at least 2 seconds */ 92 #endif 93 94 long Begin_Time, 95 End_Time, 96 User_Time; 97 98 /* end of variables for time measurement */ 99 100 void Proc_1 (REG Rec_Pointer Ptr_Val_Par); 101 void Proc_2 (One_Fifty *Int_Par_Ref); 102 void Proc_3 (Rec_Pointer *Ptr_Ref_Par); 103 void Proc_4 (void); 104 void Proc_5 (void); 105 106 107 extern Boolean Func_2(Str_30, Str_30); 108 extern void Proc_6(Enumeration, Enumeration *); 109 extern void Proc_7(One_Fifty, One_Fifty, One_Fifty *); 110 extern void Proc_8(Arr_1_Dim, Arr_2_Dim, int, int); 111 112 void dhry(int Number_Of_Runs) 113 /* main program, corresponds to procedures */ 114 /* Main and Proc_0 in the Ada version */ 115 { 116 One_Fifty Int_1_Loc; 117 REG One_Fifty Int_2_Loc; 118 One_Fifty Int_3_Loc; 119 REG char Ch_Index; 120 Enumeration Enum_Loc; 121 Str_30 Str_1_Loc; 122 Str_30 Str_2_Loc; 123 124 /* Initializations */ 125 126 Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); 127 Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); 128 129 Ptr_Glob->Ptr_Comp = Next_Ptr_Glob; 130 Ptr_Glob->Discr = Ident_1; 131 Ptr_Glob->variant.var_1.Enum_Comp = Ident_3; 132 Ptr_Glob->variant.var_1.Int_Comp = 40; 133 strcpy (Ptr_Glob->variant.var_1.Str_Comp, 134 "DHRYSTONE PROGRAM, SOME STRING"); 135 strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING"); 136 137 Arr_2_Glob [8][7] = 10; 138 /* Was missing in published program. Without this statement, */ 139 /* Arr_2_Glob [8][7] would have an undefined value. */ 140 /* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */ 141 /* overflow may occur for this array element. */ 142 143 #ifdef PRATTLE 144 printf ("\n"); 145 printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n"); 146 printf ("\n"); 147 if (Reg) 148 { 149 printf ("Program compiled with 'register' attribute\n"); 150 printf ("\n"); 151 } 152 else 153 { 154 printf ("Program compiled without 'register' attribute\n"); 155 printf ("\n"); 156 } 157 printf ("Please give the number of runs through the benchmark: "); 158 { 159 int n; 160 scanf ("%d", &n); 161 Number_Of_Runs = n; 162 } 163 printf ("\n"); 164 165 printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs); 166 #endif /* PRATTLE */ 167 168 Run_Index = 0; 169 170 /***************/ 171 /* Start timer */ 172 /***************/ 173 174 #ifdef SELF_TIMED 175 #ifdef TIMES 176 times (&time_info); 177 Begin_Time = (long) time_info.tms_utime; 178 #endif 179 #ifdef TIME 180 Begin_Time = time ( (long *) 0); 181 #endif 182 #endif /* SELF_TIMED */ 183 184 for (Run_Index = 1; Run_Index < Number_Of_Runs; ++Run_Index) 185 { 186 187 Proc_5(); 188 Proc_4(); 189 /* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */ 190 Int_1_Loc = 2; 191 Int_2_Loc = 3; 192 strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING"); 193 Enum_Loc = Ident_2; 194 Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc); 195 /* Bool_Glob == 1 */ 196 while (Int_1_Loc < Int_2_Loc) /* loop body executed once */ 197 { 198 Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc; 199 /* Int_3_Loc == 7 */ 200 Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc); 201 /* Int_3_Loc == 7 */ 202 Int_1_Loc += 1; 203 } /* while */ 204 /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ 205 Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc); 206 /* Int_Glob == 5 */ 207 Proc_1 (Ptr_Glob); 208 for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index) 209 /* loop body executed twice */ 210 { 211 if (Enum_Loc == Func_1 (Ch_Index, 'C')) 212 /* then, not executed */ 213 { 214 Proc_6 (Ident_1, &Enum_Loc); 215 strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING"); 216 Int_2_Loc = Run_Index; 217 Int_Glob = Run_Index; 218 } 219 } 220 /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ 221 Int_2_Loc = Int_2_Loc * Int_1_Loc; 222 Int_1_Loc = Int_2_Loc / Int_3_Loc; 223 Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc; 224 /* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */ 225 Proc_2 (&Int_1_Loc); 226 /* Int_1_Loc == 5 */ 227 228 } /* loop "for Run_Index" */ 229 230 /**************/ 231 /* Stop timer */ 232 /**************/ 233 #ifdef SELF_TIMED 234 #ifdef TIMES 235 times (&time_info); 236 End_Time = (long) time_info.tms_utime; 237 #endif 238 #ifdef TIME 239 End_Time = time ( (long *) 0); 240 #endif 241 #endif /* SELF_TIMED */ 242 243 /* BYTE version never executes this stuff */ 244 #ifdef SELF_TIMED 245 printf ("Execution ends\n"); 246 printf ("\n"); 247 printf ("Final values of the variables used in the benchmark:\n"); 248 printf ("\n"); 249 printf ("Int_Glob: %d\n", Int_Glob); 250 printf (" should be: %d\n", 5); 251 printf ("Bool_Glob: %d\n", Bool_Glob); 252 printf (" should be: %d\n", 1); 253 printf ("Ch_1_Glob: %c\n", Ch_1_Glob); 254 printf (" should be: %c\n", 'A'); 255 printf ("Ch_2_Glob: %c\n", Ch_2_Glob); 256 printf (" should be: %c\n", 'B'); 257 printf ("Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]); 258 printf (" should be: %d\n", 7); 259 printf ("Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]); 260 printf (" should be: Number_Of_Runs + 10\n"); 261 printf ("Ptr_Glob->\n"); 262 printf (" Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp); 263 printf (" should be: (implementation-dependent)\n"); 264 printf (" Discr: %d\n", Ptr_Glob->Discr); 265 printf (" should be: %d\n", 0); 266 printf (" Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp); 267 printf (" should be: %d\n", 2); 268 printf (" Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp); 269 printf (" should be: %d\n", 17); 270 printf (" Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp); 271 printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); 272 printf ("Next_Ptr_Glob->\n"); 273 printf (" Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp); 274 printf (" should be: (implementation-dependent), same as above\n"); 275 printf (" Discr: %d\n", Next_Ptr_Glob->Discr); 276 printf (" should be: %d\n", 0); 277 printf (" Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp); 278 printf (" should be: %d\n", 1); 279 printf (" Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp); 280 printf (" should be: %d\n", 18); 281 printf (" Str_Comp: %s\n", 282 Next_Ptr_Glob->variant.var_1.Str_Comp); 283 printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); 284 printf ("Int_1_Loc: %d\n", Int_1_Loc); 285 printf (" should be: %d\n", 5); 286 printf ("Int_2_Loc: %d\n", Int_2_Loc); 287 printf (" should be: %d\n", 13); 288 printf ("Int_3_Loc: %d\n", Int_3_Loc); 289 printf (" should be: %d\n", 7); 290 printf ("Enum_Loc: %d\n", Enum_Loc); 291 printf (" should be: %d\n", 1); 292 printf ("Str_1_Loc: %s\n", Str_1_Loc); 293 printf (" should be: DHRYSTONE PROGRAM, 1'ST STRING\n"); 294 printf ("Str_2_Loc: %s\n", Str_2_Loc); 295 printf (" should be: DHRYSTONE PROGRAM, 2'ND STRING\n"); 296 printf ("\n"); 297 298 User_Time = End_Time - Begin_Time; 299 300 if (User_Time < Too_Small_Time) 301 { 302 printf ("Measured time too small to obtain meaningful results\n"); 303 printf ("Please increase number of runs\n"); 304 printf ("\n"); 305 } 306 else 307 { 308 #ifdef TIME 309 Microseconds = (float) User_Time * Mic_secs_Per_Second 310 / (float) Number_Of_Runs; 311 Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time; 312 #else 313 Microseconds = (float) User_Time * Mic_secs_Per_Second 314 / ((float) HZ * ((float) Number_Of_Runs)); 315 Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs) 316 / (float) User_Time; 317 #endif 318 printf ("Microseconds for one run through Dhrystone: "); 319 printf ("%6.1f \n", Microseconds); 320 printf ("Dhrystones per Second: "); 321 printf ("%6.1f \n", Dhrystones_Per_Second); 322 printf ("\n"); 323 } 324 #endif /* SELF_TIMED */ 325 } 326 327 328 void Proc_1 (REG Rec_Pointer Ptr_Val_Par) 329 /* executed once */ 330 { 331 REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp; 332 /* == Ptr_Glob_Next */ 333 /* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */ 334 /* corresponds to "rename" in Ada, "with" in Pascal */ 335 336 structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob); 337 Ptr_Val_Par->variant.var_1.Int_Comp = 5; 338 Next_Record->variant.var_1.Int_Comp 339 = Ptr_Val_Par->variant.var_1.Int_Comp; 340 Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp; 341 Proc_3 (&Next_Record->Ptr_Comp); 342 /* Ptr_Val_Par->Ptr_Comp->Ptr_Comp 343 == Ptr_Glob->Ptr_Comp */ 344 if (Next_Record->Discr == Ident_1) 345 /* then, executed */ 346 { 347 Next_Record->variant.var_1.Int_Comp = 6; 348 Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp, 349 &Next_Record->variant.var_1.Enum_Comp); 350 Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp; 351 Proc_7 (Next_Record->variant.var_1.Int_Comp, 10, 352 &Next_Record->variant.var_1.Int_Comp); 353 } 354 else /* not executed */ 355 structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp); 356 } /* Proc_1 */ 357 358 359 void Proc_2 (One_Fifty *Int_Par_Ref) 360 /* executed once */ 361 /* *Int_Par_Ref == 1, becomes 4 */ 362 { 363 One_Fifty Int_Loc; 364 Enumeration Enum_Loc; 365 366 Enum_Loc = 0; 367 368 Int_Loc = *Int_Par_Ref + 10; 369 do /* executed once */ 370 if (Ch_1_Glob == 'A') 371 /* then, executed */ 372 { 373 Int_Loc -= 1; 374 *Int_Par_Ref = Int_Loc - Int_Glob; 375 Enum_Loc = Ident_1; 376 } /* if */ 377 while (Enum_Loc != Ident_1); /* true */ 378 } /* Proc_2 */ 379 380 381 void Proc_3 (Rec_Pointer *Ptr_Ref_Par) 382 /* executed once */ 383 /* Ptr_Ref_Par becomes Ptr_Glob */ 384 { 385 if (Ptr_Glob != Null) 386 /* then, executed */ 387 *Ptr_Ref_Par = Ptr_Glob->Ptr_Comp; 388 Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp); 389 } /* Proc_3 */ 390 391 392 void Proc_4 (void) /* without parameters */ 393 /* executed once */ 394 { 395 Boolean Bool_Loc; 396 397 Bool_Loc = Ch_1_Glob == 'A'; 398 Bool_Glob = Bool_Loc | Bool_Glob; 399 Ch_2_Glob = 'B'; 400 } /* Proc_4 */ 401 402 void Proc_5 (void) /* without parameters */ 403 /*******/ 404 /* executed once */ 405 { 406 Ch_1_Glob = 'A'; 407 Bool_Glob = false; 408 } /* Proc_5 */ 409 410 411 /* Procedure for the assignment of structures, */ 412 /* if the C compiler doesn't support this feature */ 413 #ifdef NOSTRUCTASSIGN 414 memcpy (d, s, l) 415 register char *d; 416 register char *s; 417 register int l; 418 { 419 while (l--) *d++ = *s++; 420 } 421 #endif 422