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420 lines
13 KiB
420 lines
13 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* (C) Copyright 2015 Google, Inc |
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* |
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* Dhrystone is widely available in the public domain. A GPL license is |
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* chosen for U-Boot. |
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*/ |
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/***************************************************************************** |
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* The BYTE UNIX Benchmarks - Release 3 |
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* Module: dhry_1.c SID: 3.4 5/15/91 19:30:21 |
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* |
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***************************************************************************** |
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* Bug reports, patches, comments, suggestions should be sent to: |
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* |
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* Ben Smith, Rick Grehan or Tom Yager |
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* [email protected] [email protected] [email protected] |
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* |
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***************************************************************************** |
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* |
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* *** WARNING **** With BYTE's modifications applied, results obtained with |
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* ******* this version of the Dhrystone program may not be applicable |
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* to other versions. |
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* |
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* Modification Log: |
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* 10/22/97 - code cleanup to remove ANSI C compiler warnings |
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* Andy Kahn <[email protected]> |
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* |
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* Adapted from: |
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* |
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* "DHRYSTONE" Benchmark Program |
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* ----------------------------- |
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* |
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* Version: C, Version 2.1 |
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* |
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* File: dhry_1.c (part 2 of 3) |
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* |
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* Date: May 25, 1988 |
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* |
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* Author: Reinhold P. Weicker |
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* |
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***************************************************************************/ |
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char SCCSid[] = "@(#) @(#)dhry_1.c:3.4 -- 5/15/91 19:30:21"; |
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#include <common.h> |
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#include <malloc.h> |
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#include "dhry.h" |
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unsigned long Run_Index; |
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void report(void) |
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{ |
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printf("%ld loops\n", Run_Index); |
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} |
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/* Global Variables: */ |
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Rec_Pointer Ptr_Glob, |
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Next_Ptr_Glob; |
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int Int_Glob; |
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Boolean Bool_Glob; |
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char Ch_1_Glob, |
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Ch_2_Glob; |
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int Arr_1_Glob [50]; |
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int Arr_2_Glob [50] [50]; |
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Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val); |
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/* forward declaration necessary since Enumeration may not simply be int */ |
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#ifndef REG |
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Boolean Reg = false; |
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#define REG |
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/* REG becomes defined as empty */ |
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/* i.e. no register variables */ |
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#else |
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Boolean Reg = true; |
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#endif |
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/* variables for time measurement: */ |
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#ifdef TIMES |
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#define Too_Small_Time 120 |
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/* Measurements should last at least about 2 seconds */ |
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#endif |
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#ifdef TIME |
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extern long time(); |
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/* see library function "time" */ |
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#define Too_Small_Time 2 |
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/* Measurements should last at least 2 seconds */ |
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#endif |
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long Begin_Time, |
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End_Time, |
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User_Time; |
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/* end of variables for time measurement */ |
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void Proc_1 (REG Rec_Pointer Ptr_Val_Par); |
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void Proc_2 (One_Fifty *Int_Par_Ref); |
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void Proc_3 (Rec_Pointer *Ptr_Ref_Par); |
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void Proc_4 (void); |
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void Proc_5 (void); |
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extern Boolean Func_2(Str_30, Str_30); |
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extern void Proc_6(Enumeration, Enumeration *); |
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extern void Proc_7(One_Fifty, One_Fifty, One_Fifty *); |
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extern void Proc_8(Arr_1_Dim, Arr_2_Dim, int, int); |
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void dhry(int Number_Of_Runs) |
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/* main program, corresponds to procedures */ |
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/* Main and Proc_0 in the Ada version */ |
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{ |
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One_Fifty Int_1_Loc; |
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REG One_Fifty Int_2_Loc; |
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One_Fifty Int_3_Loc; |
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REG char Ch_Index; |
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Enumeration Enum_Loc; |
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Str_30 Str_1_Loc; |
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Str_30 Str_2_Loc; |
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/* Initializations */ |
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Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); |
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Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); |
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Ptr_Glob->Ptr_Comp = Next_Ptr_Glob; |
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Ptr_Glob->Discr = Ident_1; |
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Ptr_Glob->variant.var_1.Enum_Comp = Ident_3; |
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Ptr_Glob->variant.var_1.Int_Comp = 40; |
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strcpy (Ptr_Glob->variant.var_1.Str_Comp, |
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"DHRYSTONE PROGRAM, SOME STRING"); |
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strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING"); |
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Arr_2_Glob [8][7] = 10; |
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/* Was missing in published program. Without this statement, */ |
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/* Arr_2_Glob [8][7] would have an undefined value. */ |
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/* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */ |
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/* overflow may occur for this array element. */ |
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#ifdef PRATTLE |
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printf ("\n"); |
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printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n"); |
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printf ("\n"); |
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if (Reg) |
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{ |
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printf ("Program compiled with 'register' attribute\n"); |
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printf ("\n"); |
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} |
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else |
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{ |
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printf ("Program compiled without 'register' attribute\n"); |
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printf ("\n"); |
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} |
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printf ("Please give the number of runs through the benchmark: "); |
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{ |
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int n; |
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scanf ("%d", &n); |
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Number_Of_Runs = n; |
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} |
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printf ("\n"); |
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printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs); |
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#endif /* PRATTLE */ |
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Run_Index = 0; |
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/***************/ |
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/* Start timer */ |
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/***************/ |
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#ifdef SELF_TIMED |
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#ifdef TIMES |
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times (&time_info); |
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Begin_Time = (long) time_info.tms_utime; |
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#endif |
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#ifdef TIME |
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Begin_Time = time ( (long *) 0); |
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#endif |
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#endif /* SELF_TIMED */ |
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for (Run_Index = 1; Run_Index < Number_Of_Runs; ++Run_Index) |
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{ |
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Proc_5(); |
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Proc_4(); |
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/* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */ |
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Int_1_Loc = 2; |
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Int_2_Loc = 3; |
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strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING"); |
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Enum_Loc = Ident_2; |
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Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc); |
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/* Bool_Glob == 1 */ |
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while (Int_1_Loc < Int_2_Loc) /* loop body executed once */ |
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{ |
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Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc; |
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/* Int_3_Loc == 7 */ |
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Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc); |
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/* Int_3_Loc == 7 */ |
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Int_1_Loc += 1; |
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} /* while */ |
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/* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ |
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Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc); |
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/* Int_Glob == 5 */ |
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Proc_1 (Ptr_Glob); |
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for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index) |
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/* loop body executed twice */ |
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{ |
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if (Enum_Loc == Func_1 (Ch_Index, 'C')) |
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/* then, not executed */ |
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{ |
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Proc_6 (Ident_1, &Enum_Loc); |
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strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING"); |
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Int_2_Loc = Run_Index; |
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Int_Glob = Run_Index; |
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} |
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} |
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/* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ |
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Int_2_Loc = Int_2_Loc * Int_1_Loc; |
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Int_1_Loc = Int_2_Loc / Int_3_Loc; |
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Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc; |
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/* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */ |
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Proc_2 (&Int_1_Loc); |
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/* Int_1_Loc == 5 */ |
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} /* loop "for Run_Index" */ |
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/**************/ |
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/* Stop timer */ |
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/**************/ |
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#ifdef SELF_TIMED |
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#ifdef TIMES |
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times (&time_info); |
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End_Time = (long) time_info.tms_utime; |
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#endif |
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#ifdef TIME |
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End_Time = time ( (long *) 0); |
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#endif |
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#endif /* SELF_TIMED */ |
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/* BYTE version never executes this stuff */ |
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#ifdef SELF_TIMED |
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printf ("Execution ends\n"); |
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printf ("\n"); |
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printf ("Final values of the variables used in the benchmark:\n"); |
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printf ("\n"); |
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printf ("Int_Glob: %d\n", Int_Glob); |
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printf (" should be: %d\n", 5); |
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printf ("Bool_Glob: %d\n", Bool_Glob); |
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printf (" should be: %d\n", 1); |
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printf ("Ch_1_Glob: %c\n", Ch_1_Glob); |
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printf (" should be: %c\n", 'A'); |
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printf ("Ch_2_Glob: %c\n", Ch_2_Glob); |
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printf (" should be: %c\n", 'B'); |
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printf ("Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]); |
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printf (" should be: %d\n", 7); |
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printf ("Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]); |
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printf (" should be: Number_Of_Runs + 10\n"); |
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printf ("Ptr_Glob->\n"); |
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printf (" Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp); |
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printf (" should be: (implementation-dependent)\n"); |
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printf (" Discr: %d\n", Ptr_Glob->Discr); |
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printf (" should be: %d\n", 0); |
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printf (" Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp); |
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printf (" should be: %d\n", 2); |
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printf (" Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp); |
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printf (" should be: %d\n", 17); |
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printf (" Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp); |
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printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); |
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printf ("Next_Ptr_Glob->\n"); |
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printf (" Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp); |
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printf (" should be: (implementation-dependent), same as above\n"); |
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printf (" Discr: %d\n", Next_Ptr_Glob->Discr); |
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printf (" should be: %d\n", 0); |
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printf (" Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp); |
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printf (" should be: %d\n", 1); |
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printf (" Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp); |
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printf (" should be: %d\n", 18); |
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printf (" Str_Comp: %s\n", |
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Next_Ptr_Glob->variant.var_1.Str_Comp); |
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printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n"); |
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printf ("Int_1_Loc: %d\n", Int_1_Loc); |
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printf (" should be: %d\n", 5); |
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printf ("Int_2_Loc: %d\n", Int_2_Loc); |
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printf (" should be: %d\n", 13); |
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printf ("Int_3_Loc: %d\n", Int_3_Loc); |
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printf (" should be: %d\n", 7); |
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printf ("Enum_Loc: %d\n", Enum_Loc); |
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printf (" should be: %d\n", 1); |
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printf ("Str_1_Loc: %s\n", Str_1_Loc); |
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printf (" should be: DHRYSTONE PROGRAM, 1'ST STRING\n"); |
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printf ("Str_2_Loc: %s\n", Str_2_Loc); |
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printf (" should be: DHRYSTONE PROGRAM, 2'ND STRING\n"); |
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printf ("\n"); |
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User_Time = End_Time - Begin_Time; |
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if (User_Time < Too_Small_Time) |
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{ |
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printf ("Measured time too small to obtain meaningful results\n"); |
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printf ("Please increase number of runs\n"); |
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printf ("\n"); |
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} |
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else |
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{ |
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#ifdef TIME |
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Microseconds = (float) User_Time * Mic_secs_Per_Second |
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/ (float) Number_Of_Runs; |
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Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time; |
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#else |
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Microseconds = (float) User_Time * Mic_secs_Per_Second |
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/ ((float) HZ * ((float) Number_Of_Runs)); |
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Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs) |
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/ (float) User_Time; |
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#endif |
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printf ("Microseconds for one run through Dhrystone: "); |
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printf ("%6.1f \n", Microseconds); |
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printf ("Dhrystones per Second: "); |
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printf ("%6.1f \n", Dhrystones_Per_Second); |
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printf ("\n"); |
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} |
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#endif /* SELF_TIMED */ |
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} |
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void Proc_1 (REG Rec_Pointer Ptr_Val_Par) |
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/* executed once */ |
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{ |
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REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp; |
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/* == Ptr_Glob_Next */ |
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/* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */ |
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/* corresponds to "rename" in Ada, "with" in Pascal */ |
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structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob); |
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Ptr_Val_Par->variant.var_1.Int_Comp = 5; |
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Next_Record->variant.var_1.Int_Comp |
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= Ptr_Val_Par->variant.var_1.Int_Comp; |
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Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp; |
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Proc_3 (&Next_Record->Ptr_Comp); |
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/* Ptr_Val_Par->Ptr_Comp->Ptr_Comp |
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== Ptr_Glob->Ptr_Comp */ |
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if (Next_Record->Discr == Ident_1) |
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/* then, executed */ |
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{ |
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Next_Record->variant.var_1.Int_Comp = 6; |
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Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp, |
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&Next_Record->variant.var_1.Enum_Comp); |
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Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp; |
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Proc_7 (Next_Record->variant.var_1.Int_Comp, 10, |
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&Next_Record->variant.var_1.Int_Comp); |
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} |
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else /* not executed */ |
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structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp); |
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} /* Proc_1 */ |
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void Proc_2 (One_Fifty *Int_Par_Ref) |
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/* executed once */ |
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/* *Int_Par_Ref == 1, becomes 4 */ |
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{ |
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One_Fifty Int_Loc; |
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Enumeration Enum_Loc; |
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Enum_Loc = 0; |
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Int_Loc = *Int_Par_Ref + 10; |
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do /* executed once */ |
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if (Ch_1_Glob == 'A') |
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/* then, executed */ |
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{ |
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Int_Loc -= 1; |
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*Int_Par_Ref = Int_Loc - Int_Glob; |
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Enum_Loc = Ident_1; |
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} /* if */ |
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while (Enum_Loc != Ident_1); /* true */ |
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} /* Proc_2 */ |
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void Proc_3 (Rec_Pointer *Ptr_Ref_Par) |
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/* executed once */ |
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/* Ptr_Ref_Par becomes Ptr_Glob */ |
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{ |
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if (Ptr_Glob != Null) |
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/* then, executed */ |
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*Ptr_Ref_Par = Ptr_Glob->Ptr_Comp; |
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Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp); |
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} /* Proc_3 */ |
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void Proc_4 (void) /* without parameters */ |
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/* executed once */ |
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{ |
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Boolean Bool_Loc; |
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Bool_Loc = Ch_1_Glob == 'A'; |
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Bool_Glob = Bool_Loc | Bool_Glob; |
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Ch_2_Glob = 'B'; |
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} /* Proc_4 */ |
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void Proc_5 (void) /* without parameters */ |
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/*******/ |
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/* executed once */ |
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{ |
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Ch_1_Glob = 'A'; |
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Bool_Glob = false; |
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} /* Proc_5 */ |
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/* Procedure for the assignment of structures, */ |
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/* if the C compiler doesn't support this feature */ |
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#ifdef NOSTRUCTASSIGN |
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memcpy (d, s, l) |
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register char *d; |
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register char *s; |
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register int l; |
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{ |
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while (l--) *d++ = *s++; |
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} |
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#endif
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