benchmarks/dhrystone/dhrystone.c

   1 // See LICENSE for license details.
   2
   3 #include "dhrystone.h"
   4
   5 #ifndef REG
   6 #define REG
   7         /* REG becomes defined as empty */
   8         /* i.e. no register variables   */
   9 #else
  10 #undef REG
  11 #define REG register
  12 #endif
  13
  14 extern  int     Int_Glob;
  15 extern  char    Ch_1_Glob;
  16
  17
  18 void Proc_6(Enumeration Enum_Val_Par, Enumeration* Enum_Ref_Par)
  19 /*********************************/
  20     /* executed once */
  21     /* Enum_Val_Par == Ident_3, Enum_Ref_Par becomes Ident_2 */
  22 {
  23   *Enum_Ref_Par = Enum_Val_Par;
  24   if (! Func_3 (Enum_Val_Par))
  25     /* then, not executed */
  26     *Enum_Ref_Par = Ident_4;
  27   switch (Enum_Val_Par)
  28   {
  29     case Ident_1:
  30       *Enum_Ref_Par = Ident_1;
  31       break;
  32     case Ident_2:
  33       if (Int_Glob > 100)
  34         /* then */
  35       *Enum_Ref_Par = Ident_1;
  36       else *Enum_Ref_Par = Ident_4;
  37       break;
  38     case Ident_3: /* executed */
  39       *Enum_Ref_Par = Ident_2;
  40       break;
  41     case Ident_4: break;
  42     case Ident_5:
  43       *Enum_Ref_Par = Ident_3;
  44       break;
  45   } /* switch */
  46 } /* Proc_6 */
  47
  48
  49 void Proc_7(int Int_1_Par_Val, int Int_2_Par_Val, int* Int_Par_Ref)
  50 /**********************************************/
  51     /* executed three times                                      */
  52     /* first call:      Int_1_Par_Val == 2, Int_2_Par_Val == 3,  */
  53     /*                  Int_Par_Ref becomes 7                    */
  54     /* second call:     Int_1_Par_Val == 10, Int_2_Par_Val == 5, */
  55     /*                  Int_Par_Ref becomes 17                   */
  56     /* third call:      Int_1_Par_Val == 6, Int_2_Par_Val == 10, */
  57     /*                  Int_Par_Ref becomes 18                   */
  58 {
  59   One_Fifty Int_Loc;
  60
  61   Int_Loc = Int_1_Par_Val + 2;
  62   *Int_Par_Ref = Int_2_Par_Val + Int_Loc;
  63 } /* Proc_7 */
  64
  65
  66 void Proc_8(Arr_1_Dim Arr_1_Par_Ref, Arr_2_Dim Arr_2_Par_Ref, int Int_1_Par_Val, int Int_2_Par_Val)
  67 /*********************************************************************/
  68     /* executed once      */
  69     /* Int_Par_Val_1 == 3 */
  70     /* Int_Par_Val_2 == 7 */
  71 {
  72   REG One_Fifty Int_Index;
  73   REG One_Fifty Int_Loc;
  74
  75   Int_Loc = Int_1_Par_Val + 5;
  76   Arr_1_Par_Ref [Int_Loc] = Int_2_Par_Val;
  77   Arr_1_Par_Ref [Int_Loc+1] = Arr_1_Par_Ref [Int_Loc];
  78   Arr_1_Par_Ref [Int_Loc+30] = Int_Loc;
  79   for (Int_Index = Int_Loc; Int_Index <= Int_Loc+1; ++Int_Index)
  80     Arr_2_Par_Ref [Int_Loc] [Int_Index] = Int_Loc;
  81   Arr_2_Par_Ref [Int_Loc] [Int_Loc-1] += 1;
  82   Arr_2_Par_Ref [Int_Loc+20] [Int_Loc] = Arr_1_Par_Ref [Int_Loc];
  83   Int_Glob = 5;
  84 } /* Proc_8 */
  85
  86
  87 Enumeration Func_1 (char Ch_1_Par_Val, char Ch_2_Par_Val)
  88 /*************************************************/
  89     /* executed three times                                         */
  90     /* first call:      Ch_1_Par_Val == 'H', Ch_2_Par_Val == 'R'    */
  91     /* second call:     Ch_1_Par_Val == 'A', Ch_2_Par_Val == 'C'    */
  92     /* third call:      Ch_1_Par_Val == 'B', Ch_2_Par_Val == 'C'    */
  93 {
  94   Capital_Letter        Ch_1_Loc;
  95   Capital_Letter        Ch_2_Loc;
  96
  97   Ch_1_Loc = Ch_1_Par_Val;
  98   Ch_2_Loc = Ch_1_Loc;
  99   if (Ch_2_Loc != Ch_2_Par_Val)
 100     /* then, executed */
 101     return (Ident_1);
 102   else  /* not executed */
 103   {
 104     Ch_1_Glob = Ch_1_Loc;
 105     return (Ident_2);
 106    }
 107 } /* Func_1 */
 108
 109
 110 Boolean Func_2(Str_30 Str_1_Par_Ref, Str_30 Str_2_Par_Ref)
 111 /*************************************************/
 112     /* executed once */
 113     /* Str_1_Par_Ref == "DHRYSTONE PROGRAM, 1'ST STRING" */
 114     /* Str_2_Par_Ref == "DHRYSTONE PROGRAM, 2'ND STRING" */
 115 {
 116   REG One_Thirty        Int_Loc;
 117       Capital_Letter    Ch_Loc;
 118
 119   Int_Loc = 2;
 120   while (Int_Loc <= 2) /* loop body executed once */
 121     if (Func_1 (Str_1_Par_Ref[Int_Loc],
 122                 Str_2_Par_Ref[Int_Loc+1]) == Ident_1)
 123       /* then, executed */
 124     {
 125       Ch_Loc = 'A';
 126       Int_Loc += 1;
 127     } /* if, while */
 128   if (Ch_Loc >= 'W' && Ch_Loc < 'Z')
 129     /* then, not executed */
 130     Int_Loc = 7;
 131   if (Ch_Loc == 'R')
 132     /* then, not executed */
 133     return (true);
 134   else /* executed */
 135   {
 136     if (strcmp (Str_1_Par_Ref, Str_2_Par_Ref) > 0)
 137       /* then, not executed */
 138     {
 139       Int_Loc += 7;
 140       Int_Glob = Int_Loc;
 141       return (true);
 142     }
 143     else /* executed */
 144       return (false);
 145   } /* if Ch_Loc */
 146 } /* Func_2 */
 147
 148
 149 Boolean Func_3(Enumeration Enum_Par_Val)
 150 /***************************/
 151     /* executed once        */
 152     /* Enum_Par_Val == Ident_3 */
 153 {
 154   Enumeration Enum_Loc;
 155
 156   Enum_Loc = Enum_Par_Val;
 157   if (Enum_Loc == Ident_3)
 158     /* then, executed */
 159     return (true);
 160   else /* not executed */
 161     return (false);
 162 } /* Func_3 */