Revision 0:f7463045004e, committed 2017-01-06

Comitter:

JovanEps

Date:

Fri Jan 06 16:08:09 2017 +0000

Commit message:

Beta 0.1

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dhry.h	Fri Jan 06 16:08:09 2017 +0000
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+/*
+ *************************************************************************
+ *
+ *                   "DHRYSTONE" Benchmark Program
+ *                   -----------------------------
+ *
+ *  Version:    C, Version 2.1
+ *
+ *  File:       dhry.h (part 1 of 3)
+ *
+ *  Date:       May 25, 1988
+ *
+ *  Author:     Reinhold P. Weicker
+ *              Siemens Nixdorf Inf. Syst.
+ *              STM OS 32
+ *              Otto-Hahn-Ring 6
+ *              W-8000 Muenchen 83
+ *              Germany
+ *                      Phone:    [+49]-89-636-42436
+ *                                (8-17 Central European Time)
+ *                      UUCP:     weicker@ztivax.uucp@unido.uucp
+ *                      Internet: weicker@ztivax.siemens.com
+ *
+ *              Original Version (in Ada) published in
+ *              "Communications of the ACM" vol. 27., no. 10 (Oct. 1984),
+ *              pp. 1013 - 1030, together with the statistics
+ *              on which the distribution of statements etc. is based.
+ *
+ *              In this C version, the following C library functions are
+ *              used:
+ *              - strcpy, strcmp (inside the measurement loop)
+ *              - printf, scanf (outside the measurement loop)
+ *
+ *  Collection of Results:
+ *              Reinhold Weicker (address see above) and
+ *              
+ *              Rick Richardson
+ *              PC Research. Inc.
+ *              94 Apple Orchard Drive
+ *              Tinton Falls, NJ 07724
+ *                      Phone:  (201) 834-1378 (9-17 EST)
+ *                      UUCP:   ...!uunet!pcrat!rick
+ *
+ *      Please send results to Rick Richardson and/or Reinhold Weicker.
+ *      Complete information should be given on hardware and software
+ *      used. Hardware information includes: Machine type, CPU, type and
+ *      size of caches; for microprocessors: clock frequency, memory speed
+ *      (number of wait states). Software information includes: Compiler
+ *      (and runtime library) manufacturer and version, compilation
+ *      switches, OS version. The Operating System version may give an
+ *      indication about the compiler; Dhrystone itself performs no OS
+ *      calls in the measurement loop.
+ *
+ *      The complete output generated by the program should be mailed
+ *      such that at least some checks for correctness can be made.
+ *
+ *************************************************************************
+ *
+ *  History:    This version C/2.1 has been made for two reasons:
+ *
+ *              1) There is an obvious need for a common C version of
+ *              Dhrystone, since C is at present the most popular system
+ *              programming language for the class of processors
+ *              (microcomputers, minicomputers) where Dhrystone is used
+ *              most. There should be, as far as possible, only one C
+ *              version of Dhrystone such that results can be compared
+ *              without restrictions. In the past, the C versions
+ *              distributed by Rick Richardson (Version 1.1) and by
+ *              Reinhold Weicker had small (though not significant)
+ *              differences.
+ *
+ *              2) As far as it is possible without changes to the
+ *              Dhrystone statistics, optimizing compilers should be
+ *              prevented from removing significant statements.
+ *
+ *              This C version has been developed in cooperation with
+ *              Rick Richardson (Tinton Falls, NJ), it incorporates many
+ *              ideas from the "Version 1.1" distributed previously by
+ *              him over the UNIX network Usenet.
+ *              I also thank Chaim Benedelac (National Semiconductor),
+ *              David Ditzel (SUN), Earl Killian and John Mashey (MIPS),
+ *              Alan Smith and Rafael Saavedra-Barrera (UC at Berkeley)
+ *              for their help with comments on earlier versions of the
+ *              benchmark.
+ *
+ *  Changes:    In the initialization part, this version follows mostly
+ *              Rick Richardson's version distributed via Usenet, not the
+ *              version distributed earlier via floppy disk by Reinhold
+ *              Weicker. As a concession to older compilers, names have
+ *              been made unique within the first 8 characters. Inside the
+ *              measurement loop, this version follows the version
+ *              previously distributed by Reinhold Weicker.
+ *
+ *              At several places in the benchmark, code has been added,
+ *              but within the measurement loop only in branches that
+ *              are not executed. The intention is that optimizing
+ *              compilers should be prevented from moving code out of the
+ *              measurement loop, or from removing code altogether. Since
+ *              the statements that are executed within the measurement
+ *              loop have NOT been changed, the numbers defining the
+ *              "Dhrystone distribution" (distribution of statements,
+ *              operand types and locality) still hold. Except for
+ *              sophisticated optimizing compilers, execution times for
+ *              this version should be the same as for previous versions.
+ *
+ *              Since it has proven difficult to subtract the time for the
+ *              measurement loop overhead in a correct way, the loop check
+ *              has been made a part of the benchmark. This does have
+ *              an impact - though a very minor one - on the distribution
+ *              statistics which have been updated for this version.
+ *
+ *              All changes within the measurement loop are described
+ *              and discussed in the companion paper "Rationale for
+ *              Dhrystone version 2".
+ *
+ *              Because of the self-imposed limitation that the order and
+ *              distribution of the executed statements should not be
+ *              changed, there are still cases where optimizing compilers
+ *              may not generate code for some statements. To a certain
+ *              degree, this is unavoidable for small synthetic
+ *              benchmarks. Users of the benchmark are advised to check
+ *              code listings whether code is generated for all statements
+ *              of Dhrystone.
+ *
+ *              Version 2.1 is identical to version 2.0 distributed via
+ *              the UNIX network Usenet in March 1988 except that it
+ *              corrects some minor deficiencies that were found by users
+ *              of version 2.0. The only change within the measurement
+ *              loop is that a non-executed "else" part was added to the
+ *              "if" statement in Func_3, and a non-executed "else" part
+ *              removed from Proc_3.
+ *
+ *************************************************************************
+ *
+ * Defines:     The following "Defines" are possible:
+ *              -DROPT         (default: Not defined)
+ *                      As an approximation to what an average C
+ *                      programmer might do, the "register" storage class
+ *                      is applied (if enabled by -DROPT)
+ *                      - for local variables, if they are used
+ *                        (dynamically) five or more times
+ *                      - for parameters if they are used (dynamically)
+ *                        six or more times
+ *                      Note that an optimal "register" strategy is
+ *                      compiler-dependent, and that "register"
+ *                      declarations do not necessarily lead to faster
+ *                      execution.
+ *              -DNOSTRUCTASSIGN        (default: Not defined)
+ *                      Define if the C compiler does not support
+ *                      assignment of structures.
+ *              -DNOENUMS               (default: Not defined)
+ *                      Define if the C compiler does not support
+ *                      enumeration types.
+ *
+ *************************************************************************
+ *
+ *  Compilation model and measurement (IMPORTANT):
+ *
+ *  This C version of Dhrystone consists of three files:
+ *  - dhry.h (this file, containing global definitions and comments)
+ *  - dhry_1.c (containing the code corresponding to Ada package Pack_1)
+ *  - dhry_2.c (containing the code corresponding to Ada package Pack_2)
+ *
+ *  The following "ground rules" apply for measurements:
+ *  - Separate compilation
+ *  - No procedure merging
+ *  - Otherwise, compiler optimizations are allowed but should be
+ *    indicated
+ *  - Default results are those without register declarations
+ *  See the companion paper "Rationale for Dhrystone Version 2" for a more
+ *  detailed discussion of these ground rules.
+ *
+ *  For 16-Bit processors (e.g. 80186, 80286), times for all compilation
+ *  models ("small", "medium", "large" etc.) should be given if possible,
+ *  together with a definition of these models for the compiler system
+ *  used.
+ *
+ *************************************************************************
+ *
+ *  Dhrystone (C version) statistics:
+ *
+ *  [Comment from the first distribution, updated for version 2.
+ *   Note that because of language differences, the numbers are slightly
+ *   different from the Ada version.]
+ *
+ *  The following program contains statements of a high level programming
+ *  language (here: C) in a distribution considered representative:
+ *
+ *    assignments                  52 (51.0 %)
+ *    control statements           33 (32.4 %)
+ *    procedure, function calls    17 (16.7 %)
+ *
+ *  103 statements are dynamically executed. The program is balanced with
+ *  respect to the three aspects:
+ *
+ *    - statement type
+ *    - operand type
+ *    - operand locality
+ *         operand global, local, parameter, or constant.
+ *
+ *  The combination of these three aspects is balanced only approximately.
+ *
+ *  1. Statement Type:
+ *  -----------------             number
+ *
+ *     V1 = V2                     9
+ *       (incl. V1 = F(..)
+ *     V = Constant               12
+ *     Assignment,                 7
+ *       with array element
+ *     Assignment,                 6
+ *       with record component
+ *                                --
+ *                                34       34
+ *
+ *     X = Y +|-|"&&"|"|" Z        5
+ *     X = Y +|-|"==" Constant     6
+ *     X = X +|- 1                 3
+ *     X = Y *|/ Z                 2
+ *     X = Expression,             1
+ *           two operators
+ *     X = Expression,             1
+ *           three operators
+ *                                --
+ *                                18       18
+ *
+ *     if ....                    14
+ *       with "else"      7
+ *       without "else"   7
+ *           executed        3
+ *           not executed    4
+ *     for ...                     7  |  counted every time
+ *     while ...                   4  |  the loop condition
+ *     do ... while                1  |  is evaluated
+ *     switch ...                  1
+ *     break                       1
+ *     declaration with            1
+ *       initialization
+ *                                --
+ *                                34       34
+ *
+ *     P (...)  procedure call    11
+ *       user procedure      10
+ *       library procedure    1
+ *     X = F (...)
+ *             function  call      6
+ *       user function        5
+ *       library function     1
+ *                                --
+ *                                17       17
+ *                                        ---
+ *                                        103
+ *
+ *    The average number of parameters in procedure or function calls
+ *    is 1.82 (not counting the function values as implicit parameters).
+ *
+ *
+ *  2. Operators
+ *  ------------
+ *                          number    approximate
+ *                                    percentage
+ *
+ *    Arithmetic             32          50.8
+ *
+ *       +                     21          33.3
+ *       -                      7          11.1
+ *       *                      3           4.8
+ *       / (int div)            1           1.6
+ *
+ *    Comparison             27           42.8
+ *
+ *       ==                     9           14.3
+ *       /=                     4            6.3
+ *       >                      1            1.6
+ *       <                      3            4.8
+ *       >=                     1            1.6
+ *       <=                     9           14.3
+ *
+ *    Logic                   4            6.3
+ *
+ *       && (AND-THEN)          1            1.6
+ *       |  (OR)                1            1.6
+ *       !  (NOT)               2            3.2
+ * 
+ *                           --          -----
+ *                           63          100.1
+ *
+ *
+ *  3. Operand Type (counted once per operand reference):
+ *  ---------------
+ *                          number    approximate
+ *                                    percentage
+ *
+ *     Integer               175        72.3 %
+ *     Character              45        18.6 %
+ *     Pointer                12         5.0 %
+ *     String30                6         2.5 %
+ *     Array                   2         0.8 %
+ *     Record                  2         0.8 %
+ *                           ---       -------
+ *                           242       100.0 %
+ *
+ *  When there is an access path leading to the final operand (e.g. a
+ *  record component), only the final data type on the access path is
+ *  counted.
+ *
+ *
+ *  4. Operand Locality:
+ *  -------------------
+ *                                number    approximate
+ *                                          percentage
+ *
+ *     local variable              114        47.1 %
+ *     global variable              22         9.1 %
+ *     parameter                    45        18.6 %
+ *        value                        23         9.5 %
+ *        reference                    22         9.1 %
+ *     function result               6         2.5 %
+ *     constant                     55        22.7 %
+ *                                 ---       -------
+ *                                 242       100.0 %
+ *
+ *
+ *  The program does not compute anything meaningful, but it is
+ *  syntactically and semantically correct. All variables have a value
+ *  assigned to them before they are used as a source operand.
+ *
+ *  There has been no explicit effort to account for the effects of a
+ *  cache, or to balance the use of long or short displacements for code
+ *  or data.
+ *
+ *************************************************************************
+ */
+
+/* Compiler and system dependent definitions: */
+
+#define Mic_secs_Per_Second     1000000.0
+                /* Berkeley UNIX C returns process times in seconds/HZ */
+
+#ifdef  NOSTRUCTASSIGN
+#define structassign(d, s)      memcpy(&(d), &(s), sizeof(d))
+#else
+#define structassign(d, s)      d = s
+#endif
+
+#ifdef  NOENUM
+#define Ident_1 0
+#define Ident_2 1
+#define Ident_3 2
+#define Ident_4 3
+#define Ident_5 4
+  typedef int   Enumeration;
+#else
+  typedef       enum    {Ident_1, Ident_2, Ident_3, Ident_4, Ident_5}
+                Enumeration;
+#endif
+        /* for boolean and enumeration types in Ada, Pascal */
+
+/* General definitions: */
+
+
+#define Null 0 
+                /* Value of a Null pointer */
+#define true  1
+#define false 0
+
+typedef int One_Thirty;
+typedef int One_Fifty;
+typedef char Capital_Letter;
+typedef int Booleann;
+typedef char Str_30[31];
+typedef int Arr_1_Dim[25];        /* <-- changed from 50 */
+typedef int Arr_2_Dim[25][25];   /* <-- changed from 50 */
+
+typedef struct record 
+    {
+    struct record *Ptr_Comp;
+    Enumeration    Discr;
+    union {
+          struct {
+                  Enumeration Enum_Comp;
+                  int         Int_Comp;
+                  char        Str_Comp [31];
+                  } var_1;
+          struct {
+                  Enumeration E_Comp_2;
+                  char        Str_2_Comp [31];
+                  } var_2;
+          struct {
+                  char        Ch_1_Comp;
+                  char        Ch_2_Comp;
+                  } var_3;
+          } variant;
+      } Rec_Type, *Rec_Pointer;
+
+/*  Prototypes of function defined in dhry21b.c and called from dhry21a.c.
+ */
+void Proc_6( Enumeration Enum_Val_Par, Enumeration * Enum_Ref_Par );
+void Proc_7( One_Fifty Int_1_Par_Val, One_Fifty Int_2_Par_Val,
+                                                      One_Fifty * Int_Par_Ref );
+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 );
+Enumeration Func_1( Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val );
+Booleann Func_2( Str_30 Str_1_Par_Ref, Str_30 Str_2_Par_Ref );
+