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OS/2 Shareware BBS: 8 Other
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dhry_1.c
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C/C++ Source or Header
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1998-03-22
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15KB
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508 lines
/*
****************************************************************************
*
* "DHRYSTONE" Benchmark Program
* -----------------------------
*
* Version: C, Version 2.1
*
* File: dhry_1.c (part 2 of 3)
*
* Date: May 25, 1988
*
* Author: Reinhold P. Weicker
*
****************************************************************************
*/
#include "dhry.h"
/* 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];
/*extern char *malloc ();*/
Enumeration Func_1 ();
/* forward declaration necessary since Enumeration may not simply be int */
void Proc_1 (), Proc_2 (), Proc_3 (), Proc_4 (), Proc_5 ();
#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
struct tms time_info;
extern int times ();
/* see library function "times" */
#define Too_Small_Time (2*HZ)
/* 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
#ifdef CLOCK
extern clock_t clock();
#define Too_Small_Time (2*HZ)
#define DURATION 5
#endif
#ifdef OS2TMR
extern long start_alarm(long), start_timer(void *), stop_timer(void*, long);
char Run_Time[8];
#ifdef HZ
#undef HZ
#endif
#define HZ 1000
#define Too_Small_Time (2*HZ)
#define DURATION 5
#define main dhry_main
#endif
#ifdef DURATION
#include <signal.h>
#endif
unsigned long Number_Of_Runs;
long User_Time;
unsigned long Microseconds,
Totalseconds,
Dhrystones_Per_Second;
/* end of variables for time measurement */
long dhry_stone(void)
{
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;
REG unsigned long Run_Index;
long Begin_Time, End_Time;
/* 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. */
/***************/
/* Start timer */
/***************/
#ifdef TIMES
times (&time_info);
Begin_Time = (long) time_info.tms_utime;
#endif
#ifdef TIME
Begin_Time = time ( (long *) 0);
#endif
#ifdef CLOCK
Begin_Time = clock();
#endif
#ifdef OS2TMR
Begin_Time = 0;
start_timer(&Run_Time);
#endif
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 TIMES
times (&time_info);
End_Time = (long) time_info.tms_utime;
#endif
#ifdef TIME
End_Time = time ( (long *) 0);
#endif
#ifdef CLOCK
End_Time = clock();
#endif
#ifdef OS2TMR
End_Time = stop_timer(&Run_Time, HZ);
#endif
#ifdef DURATION
Number_Of_Runs = Run_Index - 1;
#endif
if (Int_Glob != 5)
return 0;
if (Bool_Glob != 1)
return 0;
if (Ch_1_Glob != 'A')
return 0;
if (Ch_2_Glob != 'B')
return 0;
if (Arr_1_Glob[8] != 7)
return 0;
if (Arr_2_Glob[8][7] != Number_Of_Runs + 10)
return 0;
if (Ptr_Glob->Discr != 0)
return 0;
if (Ptr_Glob->variant.var_1.Enum_Comp != 2)
return 0;
if (Ptr_Glob->variant.var_1.Int_Comp != 17)
return 0;
if (strcmp(Ptr_Glob->variant.var_1.Str_Comp,
"DHRYSTONE PROGRAM, SOME STRING") != 0)
return 0;
if (Next_Ptr_Glob->Discr != 0)
return 0;
if (Next_Ptr_Glob->variant.var_1.Enum_Comp != 1)
return 0;
if (Next_Ptr_Glob->variant.var_1.Int_Comp != 18)
return 0;
if (strcmp(Next_Ptr_Glob->variant.var_1.Str_Comp,
"DHRYSTONE PROGRAM, SOME STRING") != 0)
return 0;
if (Int_1_Loc != 5)
return 0;
if (Int_2_Loc != 13)
return 0;
if (Int_3_Loc != 7)
return 0;
if (Enum_Loc != 1)
return 0;
if (strcmp(Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING") != 0)
return 0;
if (strcmp(Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING") != 0)
return 0;
return End_Time - Begin_Time;
}
void alarm_handler(int sig)
{
Number_Of_Runs = 0;
}
void main (argc, argv)
int argc;
char **argv;
/*****/
/* main program, corresponds to procedures */
/* Main and Proc_0 in the Ada version */
{
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");
}
if ( argc == 1 )
{
#ifdef DURATION
printf ("Execution starts, runs through Dhrystone for %d seconds\n", DURATION);
Number_Of_Runs = -1;
#ifdef OS2TMR
start_alarm(DURATION);
#else
signal(SIGALRM, alarm_handler);
alarm(DURATION);
#endif
#else
printf ("Please give the number of runs through the benchmark: ");
{
unsigned long n;
scanf ("%lu", &n);
Number_Of_Runs = n;
}
printf ("\n");
printf ("Execution starts, %lu runs through Dhrystone\n", Number_Of_Runs);
#endif
}
else
{
extern long atol();
Number_Of_Runs = atol(argv[1]);
printf ("Execution starts, %lu runs through Dhrystone\n", Number_Of_Runs);
}
User_Time = dhry_stone();
if (User_Time == 0)
{
printf ("Data consistency error\n");
exit(1);
}
printf ("Execution ends\n");
printf ("\n");
#if 0
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]: %u\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");
#endif
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
Totalseconds = User_Time * 10L;
Microseconds = User_Time * Mic_secs_Per_Second * 10L / Number_Of_Runs;
Dhrystones_Per_Second = (unsigned long) Number_Of_Runs / User_Time;
#else
Totalseconds = User_Time * 10L / HZ;
Microseconds = User_Time * (Mic_secs_Per_Second / HZ) * 10L / Number_Of_Runs;
Dhrystones_Per_Second = (unsigned long) Number_Of_Runs * HZ / User_Time;
#endif
printf ("Total Seconds for %7lu runs through Dhrystone: ", Number_Of_Runs);
printf ("%6ld.%1ld \n", Totalseconds / 10L, Totalseconds % 10L);
printf ("Microseconds for one run through Dhrystone: ");
printf ("%6ld.%1ld \n", Microseconds / 10L, Microseconds % 10L);
printf ("Dhrystones per Second: ");
printf ("%8ld \n", Dhrystones_Per_Second);
}
}
void Proc_1 (Ptr_Val_Par)
/******************/
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 (Int_Par_Ref)
/******************/
/* executed once */
/* *Int_Par_Ref == 1, becomes 4 */
One_Fifty *Int_Par_Ref;
{
One_Fifty Int_Loc;
Enumeration Enum_Loc;
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 (Ptr_Ref_Par)
/******************/
/* executed once */
/* Ptr_Ref_Par becomes Ptr_Glob */
Rec_Pointer *Ptr_Ref_Par;
{
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 () /* 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 () /* 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