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+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Dhrystone is widely available in the public domain. A GPL license is
+ * chosen for U-Boot.
+ */
+
+/*****************************************************************************
+ * The BYTE UNIX Benchmarks - Release 3
+ * Module: dhry_1.c SID: 3.4 5/15/91 19:30:21
+ *
+ *****************************************************************************
+ * Bug reports, patches, comments, suggestions should be sent to:
+ *
+ * Ben Smith, Rick Grehan or Tom Yager
+ * ben@bytepb.byte.com rick_g@bytepb.byte.com tyager@bytepb.byte.com
+ *
+ *****************************************************************************
+ *
+ * *** WARNING **** With BYTE's modifications applied, results obtained with
+ * ******* this version of the Dhrystone program may not be applicable
+ * to other versions.
+ *
+ * Modification Log:
+ * 10/22/97 - code cleanup to remove ANSI C compiler warnings
+ * Andy Kahn <kahn@zk3.dec.com>
+ *
+ * Adapted from:
+ *
+ * "DHRYSTONE" Benchmark Program
+ * -----------------------------
+ *
+ * Version: C, Version 2.1
+ *
+ * File: dhry_1.c (part 2 of 3)
+ *
+ * Date: May 25, 1988
+ *
+ * Author: Reinhold P. Weicker
+ *
+ ***************************************************************************/
+char SCCSid[] = "@(#) @(#)dhry_1.c:3.4 -- 5/15/91 19:30:21";
+
+#include <common.h>
+#include <malloc.h>
+
+#include "dhry.h"
+
+unsigned long Run_Index;
+
+void report(void)
+{
+ printf("%ld loops\n", Run_Index);
+}
+
+/* Global Variables: */
+
+Rec_Pointer Ptr_Glob,
+ Next_Ptr_Glob;
+int Int_Glob;
+Boolean Bool_Glob;
+char Ch_1_Glob,
+ Ch_2_Glob;
+int Arr_1_Glob [50];
+int Arr_2_Glob [50] [50];
+
+Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val);
+ /* forward declaration necessary since Enumeration may not simply be int */
+
+#ifndef REG
+ Boolean Reg = false;
+#define REG
+ /* REG becomes defined as empty */
+ /* i.e. no register variables */
+#else
+ Boolean Reg = true;
+#endif
+
+/* variables for time measurement: */
+
+#ifdef TIMES
+#define Too_Small_Time 120
+ /* Measurements should last at least about 2 seconds */
+#endif
+#ifdef TIME
+extern long time();
+ /* see library function "time" */
+#define Too_Small_Time 2
+ /* Measurements should last at least 2 seconds */
+#endif
+
+long Begin_Time,
+ End_Time,
+ User_Time;
+
+/* end of variables for time measurement */
+
+void Proc_1 (REG Rec_Pointer Ptr_Val_Par);
+void Proc_2 (One_Fifty *Int_Par_Ref);
+void Proc_3 (Rec_Pointer *Ptr_Ref_Par);
+void Proc_4 (void);
+void Proc_5 (void);
+
+
+extern Boolean Func_2(Str_30, Str_30);
+extern void Proc_6(Enumeration, Enumeration *);
+extern void Proc_7(One_Fifty, One_Fifty, One_Fifty *);
+extern void Proc_8(Arr_1_Dim, Arr_2_Dim, int, int);
+
+void dhry(int Number_Of_Runs)
+ /* main program, corresponds to procedures */
+ /* Main and Proc_0 in the Ada version */
+{
+ One_Fifty Int_1_Loc;
+ REG One_Fifty Int_2_Loc;
+ One_Fifty Int_3_Loc;
+ REG char Ch_Index;
+ Enumeration Enum_Loc;
+ Str_30 Str_1_Loc;
+ Str_30 Str_2_Loc;
+
+ /* Initializations */
+
+ Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type));
+ Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type));
+
+ Ptr_Glob->Ptr_Comp = Next_Ptr_Glob;
+ Ptr_Glob->Discr = Ident_1;
+ Ptr_Glob->variant.var_1.Enum_Comp = Ident_3;
+ Ptr_Glob->variant.var_1.Int_Comp = 40;
+ strcpy (Ptr_Glob->variant.var_1.Str_Comp,
+ "DHRYSTONE PROGRAM, SOME STRING");
+ strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING");
+
+ Arr_2_Glob [8][7] = 10;
+ /* Was missing in published program. Without this statement, */
+ /* Arr_2_Glob [8][7] would have an undefined value. */
+ /* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */
+ /* overflow may occur for this array element. */
+
+#ifdef PRATTLE
+ printf ("\n");
+ printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n");
+ printf ("\n");
+ if (Reg)
+ {
+ printf ("Program compiled with 'register' attribute\n");
+ printf ("\n");
+ }
+ else
+ {
+ printf ("Program compiled without 'register' attribute\n");
+ printf ("\n");
+ }
+ printf ("Please give the number of runs through the benchmark: ");
+ {
+ int n;
+ scanf ("%d", &n);
+ Number_Of_Runs = n;
+ }
+ printf ("\n");
+
+ printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);
+#endif /* PRATTLE */
+
+ Run_Index = 0;
+
+ /***************/
+ /* Start timer */
+ /***************/
+
+#ifdef SELF_TIMED
+#ifdef TIMES
+ times (&time_info);
+ Begin_Time = (long) time_info.tms_utime;
+#endif
+#ifdef TIME
+ Begin_Time = time ( (long *) 0);
+#endif
+#endif /* SELF_TIMED */
+
+ for (Run_Index = 1; Run_Index < Number_Of_Runs; ++Run_Index)
+ {
+
+ Proc_5();
+ Proc_4();
+ /* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */
+ Int_1_Loc = 2;
+ Int_2_Loc = 3;
+ strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING");
+ Enum_Loc = Ident_2;
+ Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc);
+ /* Bool_Glob == 1 */
+ while (Int_1_Loc < Int_2_Loc) /* loop body executed once */
+ {
+ Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc;
+ /* Int_3_Loc == 7 */
+ Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc);
+ /* Int_3_Loc == 7 */
+ Int_1_Loc += 1;
+ } /* while */
+ /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
+ Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc);
+ /* Int_Glob == 5 */
+ Proc_1 (Ptr_Glob);
+ for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index)
+ /* loop body executed twice */
+ {
+ if (Enum_Loc == Func_1 (Ch_Index, 'C'))
+ /* then, not executed */
+ {
+ Proc_6 (Ident_1, &Enum_Loc);
+ strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING");
+ Int_2_Loc = Run_Index;
+ Int_Glob = Run_Index;
+ }
+ }
+ /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
+ Int_2_Loc = Int_2_Loc * Int_1_Loc;
+ Int_1_Loc = Int_2_Loc / Int_3_Loc;
+ Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc;
+ /* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */
+ Proc_2 (&Int_1_Loc);
+ /* Int_1_Loc == 5 */
+
+ } /* loop "for Run_Index" */
+
+ /**************/
+ /* Stop timer */
+ /**************/
+#ifdef SELF_TIMED
+#ifdef TIMES
+ times (&time_info);
+ End_Time = (long) time_info.tms_utime;
+#endif
+#ifdef TIME
+ End_Time = time ( (long *) 0);
+#endif
+#endif /* SELF_TIMED */
+
+ /* BYTE version never executes this stuff */
+#ifdef SELF_TIMED
+ printf ("Execution ends\n");
+ printf ("\n");
+ printf ("Final values of the variables used in the benchmark:\n");
+ printf ("\n");
+ printf ("Int_Glob: %d\n", Int_Glob);
+ printf (" should be: %d\n", 5);
+ printf ("Bool_Glob: %d\n", Bool_Glob);
+ printf (" should be: %d\n", 1);
+ printf ("Ch_1_Glob: %c\n", Ch_1_Glob);
+ printf (" should be: %c\n", 'A');
+ printf ("Ch_2_Glob: %c\n", Ch_2_Glob);
+ printf (" should be: %c\n", 'B');
+ printf ("Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]);
+ printf (" should be: %d\n", 7);
+ printf ("Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]);
+ printf (" should be: Number_Of_Runs + 10\n");
+ printf ("Ptr_Glob->\n");
+ printf (" Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp);
+ printf (" should be: (implementation-dependent)\n");
+ printf (" Discr: %d\n", Ptr_Glob->Discr);
+ printf (" should be: %d\n", 0);
+ printf (" Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp);
+ printf (" should be: %d\n", 2);
+ printf (" Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp);
+ printf (" should be: %d\n", 17);
+ printf (" Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp);
+ printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n");
+ printf ("Next_Ptr_Glob->\n");
+ printf (" Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp);
+ printf (" should be: (implementation-dependent), same as above\n");
+ printf (" Discr: %d\n", Next_Ptr_Glob->Discr);
+ printf (" should be: %d\n", 0);
+ printf (" Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp);
+ printf (" should be: %d\n", 1);
+ printf (" Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp);
+ printf (" should be: %d\n", 18);
+ printf (" Str_Comp: %s\n",
+ Next_Ptr_Glob->variant.var_1.Str_Comp);
+ printf (" should be: DHRYSTONE PROGRAM, SOME STRING\n");
+ printf ("Int_1_Loc: %d\n", Int_1_Loc);
+ printf (" should be: %d\n", 5);
+ printf ("Int_2_Loc: %d\n", Int_2_Loc);
+ printf (" should be: %d\n", 13);
+ printf ("Int_3_Loc: %d\n", Int_3_Loc);
+ printf (" should be: %d\n", 7);
+ printf ("Enum_Loc: %d\n", Enum_Loc);
+ printf (" should be: %d\n", 1);
+ printf ("Str_1_Loc: %s\n", Str_1_Loc);
+ printf (" should be: DHRYSTONE PROGRAM, 1'ST STRING\n");
+ printf ("Str_2_Loc: %s\n", Str_2_Loc);
+ printf (" should be: DHRYSTONE PROGRAM, 2'ND STRING\n");
+ printf ("\n");
+
+ User_Time = End_Time - Begin_Time;
+
+ if (User_Time < Too_Small_Time)
+ {
+ printf ("Measured time too small to obtain meaningful results\n");
+ printf ("Please increase number of runs\n");
+ printf ("\n");
+ }
+ else
+ {
+#ifdef TIME
+ Microseconds = (float) User_Time * Mic_secs_Per_Second
+ / (float) Number_Of_Runs;
+ Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time;
+#else
+ Microseconds = (float) User_Time * Mic_secs_Per_Second
+ / ((float) HZ * ((float) Number_Of_Runs));
+ Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs)
+ / (float) User_Time;
+#endif
+ printf ("Microseconds for one run through Dhrystone: ");
+ printf ("%6.1f \n", Microseconds);
+ printf ("Dhrystones per Second: ");
+ printf ("%6.1f \n", Dhrystones_Per_Second);
+ printf ("\n");
+ }
+#endif /* SELF_TIMED */
+}
+
+
+void Proc_1 (REG Rec_Pointer Ptr_Val_Par)
+ /* executed once */
+{
+ REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp;
+ /* == Ptr_Glob_Next */
+ /* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */
+ /* corresponds to "rename" in Ada, "with" in Pascal */
+
+ structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob);
+ Ptr_Val_Par->variant.var_1.Int_Comp = 5;
+ Next_Record->variant.var_1.Int_Comp
+ = Ptr_Val_Par->variant.var_1.Int_Comp;
+ Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp;
+ Proc_3 (&Next_Record->Ptr_Comp);
+ /* Ptr_Val_Par->Ptr_Comp->Ptr_Comp
+ == Ptr_Glob->Ptr_Comp */
+ if (Next_Record->Discr == Ident_1)
+ /* then, executed */
+ {
+ Next_Record->variant.var_1.Int_Comp = 6;
+ Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp,
+ &Next_Record->variant.var_1.Enum_Comp);
+ Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp;
+ Proc_7 (Next_Record->variant.var_1.Int_Comp, 10,
+ &Next_Record->variant.var_1.Int_Comp);
+ }
+ else /* not executed */
+ structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp);
+} /* Proc_1 */
+
+
+void Proc_2 (One_Fifty *Int_Par_Ref)
+ /* executed once */
+ /* *Int_Par_Ref == 1, becomes 4 */
+{
+ One_Fifty Int_Loc;
+ Enumeration Enum_Loc;
+
+ Enum_Loc = 0;
+
+ Int_Loc = *Int_Par_Ref + 10;
+ do /* executed once */
+ if (Ch_1_Glob == 'A')
+ /* then, executed */
+ {
+ Int_Loc -= 1;
+ *Int_Par_Ref = Int_Loc - Int_Glob;
+ Enum_Loc = Ident_1;
+ } /* if */
+ while (Enum_Loc != Ident_1); /* true */
+} /* Proc_2 */
+
+
+void Proc_3 (Rec_Pointer *Ptr_Ref_Par)
+ /* executed once */
+ /* Ptr_Ref_Par becomes Ptr_Glob */
+{
+ if (Ptr_Glob != Null)
+ /* then, executed */
+ *Ptr_Ref_Par = Ptr_Glob->Ptr_Comp;
+ Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp);
+} /* Proc_3 */
+
+
+void Proc_4 (void) /* without parameters */
+ /* executed once */
+{
+ Boolean Bool_Loc;
+
+ Bool_Loc = Ch_1_Glob == 'A';
+ Bool_Glob = Bool_Loc | Bool_Glob;
+ Ch_2_Glob = 'B';
+} /* Proc_4 */
+
+void Proc_5 (void) /* without parameters */
+/*******/
+ /* executed once */
+{
+ Ch_1_Glob = 'A';
+ Bool_Glob = false;
+} /* Proc_5 */
+
+
+ /* Procedure for the assignment of structures, */
+ /* if the C compiler doesn't support this feature */
+#ifdef NOSTRUCTASSIGN
+memcpy (d, s, l)
+register char *d;
+register char *s;
+register int l;
+{
+ while (l--) *d++ = *s++;
+}
+#endif
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