391 lines
12 KiB
C
391 lines
12 KiB
C
/*
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*************************************************************************
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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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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "dhry.h"
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static double dtime(void)
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{
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extern unsigned int timer_get_ms();
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return (double)timer_get_ms() / 1000;
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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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char Reg_Define[] = "Register option selected.";
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//extern void *malloc();
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Enumeration Func_1();
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/* forward declaration necessary since Enumeration may not simply be int */
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#ifndef ROPT
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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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#define REG register
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#endif
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void Proc_1(REG Rec_Pointer);
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void Proc_2(One_Fifty *);
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void Proc_3(Rec_Pointer *);
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void Proc_4(void);
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void Proc_5(void);
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#ifdef NOSTRUCTASSIGN
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void memcpy(register char *, register char *, register int);
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#endif
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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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/* variables for time measurement: */
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#define Too_Small_Time 2
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/* Measurements should last at least 2 seconds */
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double Begin_Time,
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End_Time,
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User_Time;
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double Microseconds,
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Dhrystones_Per_Second,
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Vax_Mips;
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/* end of variables for time measurement */
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void dhry_main(unsigned int Number_Of_Runs)
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/*****/
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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 = 0;
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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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REG int Run_Index;
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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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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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/*
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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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*/
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if (Number_Of_Runs == 0) {
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printf("Please give the number of runs through the benchmark:\n");
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return;
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}
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printf("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);
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puts("\r\nplease waitting for a moment...\r\n");
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/***************/
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/* Start timer */
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/***************/
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Begin_Time = dtime();
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for (Run_Index = 1; Run_Index <= Number_Of_Runs; ++Run_Index) {
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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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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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End_Time = dtime();
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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", 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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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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} else {
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Microseconds = User_Time * Mic_secs_Per_Second
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/ (double) Number_Of_Runs;
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Dhrystones_Per_Second = (double) Number_Of_Runs / User_Time;
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Vax_Mips = Dhrystones_Per_Second / 1757.0;
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#ifdef ROPT
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printf("Register option selected? YES\n");
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#else
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printf("Register option selected? NO\n");
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strcpy(Reg_Define, "Register option not selected.");
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#endif
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printf("Microseconds for one run through Dhrystone: ");
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printf("%7.1f \n", Microseconds);
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printf("Dhrystones per Second: ");
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printf("%10.1f \n", Dhrystones_Per_Second);
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printf("VAX MIPS rating = %10.3f \n", Vax_Mips);
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printf("\n");
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printf("\n");
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printf("Dhrystone Benchmark, Version 2.1 (Language: C)\n");
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printf("%s\n", Reg_Define);
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printf("Microseconds for one loop: %7.1f\n", Microseconds);
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printf("Dhrystones per second: %10.1f\n", Dhrystones_Per_Second);
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printf("VAX MIPS rating: %10.3f\n", Vax_Mips);
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}
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free(Next_Ptr_Glob);
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free(Ptr_Glob);
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}
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void
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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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} else { /* not executed */
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structassign(*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp);
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}
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} /* Proc_1 */
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void
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Proc_2(One_Fifty *Int_Par_Ref)
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/******************/
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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 = Ident_1;
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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
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Proc_3(Rec_Pointer *Ptr_Ref_Par)
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/******************/
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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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{
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*Ptr_Ref_Par = Ptr_Glob->Ptr_Comp;
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}
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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
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Proc_4(void) /* without parameters */
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/*******/
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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
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Proc_5(void) /* without parameters */
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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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void
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memcpy(register char *d, register char *s, register int l)
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/* register char *d; register char *s; register int l; */
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{
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while (l--) {
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*d++ = *s++;
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}
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}
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#endif
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