chiark - git - mdw - mLib/blob - bits.c

   1 /* -*-c-*-
   2  *
   3  * $Id: bits.c,v 1.3 2003/12/14 14:46:11 mdw Exp $
   4  *
   5  * Test rig for bits header
   6  *
   7  * (c) 2000 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the mLib utilities library.
  13  *
  14  * mLib is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * mLib is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with mLib; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: bits.c,v $
  33  * Revision 1.3  2003/12/14 14:46:11  mdw
  34  * Use right test vector file name.
  35  *
  36  * Revision 1.2  2000/10/14 16:46:44  mdw
  37  * Make sure that the bits testcase gets its test vector from the source
  38  * directory.
  39  *
  40  * Revision 1.1  2000/07/16 12:28:00  mdw
  41  * Test equipment for the 64-bit arithmetic in `bits.h'.
  42  *
  43  */
  44
  45 /*----- Header files ------------------------------------------------------*/
  46
  47 #include "bits.h"
  48 #include "testrig.h"
  49
  50 /*----- Main code ---------------------------------------------------------*/
  51
  52 #define TSHIFT(OP)                                                      \
  53                                                                         \
  54 static int t##OP(dstr *v)                                               \
  55 {                                                                       \
  56   kludge64 x, xx, y;                                                    \
  57   unsigned s = *(unsigned *)v[1].buf;                                   \
  58   int ok = 1;                                                           \
  59                                                                         \
  60   LOAD64_(x, v[0].buf);                                                 \
  61   LOAD64_(xx, v[2].buf);                                                \
  62   y = x;                                                                \
  63   OP##64_(y, y, s);                                                     \
  64   if (CMP64(y, !=, xx)) {                                               \
  65     ok = 0;                                                             \
  66     fprintf(stderr,                                                     \
  67             "\nbad: %08x:%08x " #OP " %u != %08x:%08x [%08x:%08x]\n",   \
  68             HI64(x), LO64(x), s, HI64(y), LO64(y), HI64(xx), LO64(xx)); \
  69   }                                                                     \
  70   return (ok);                                                          \
  71 }
  72
  73 #define TARITH(OP)                                                      \
  74                                                                         \
  75 static int t##OP(dstr *v)                                               \
  76 {                                                                       \
  77   kludge64 x, y, xx, yy;                                                \
  78   int ok = 1;                                                           \
  79                                                                         \
  80   LOAD64_(x, v[0].buf);                                                 \
  81   LOAD64_(y, v[1].buf);                                                 \
  82   LOAD64_(xx, v[2].buf);                                                \
  83   yy = x;                                                               \
  84   OP##64(yy, yy, y);                                                    \
  85   if (CMP64(yy, !=, xx)) {                                              \
  86     ok = 0;                                                             \
  87     fprintf(stderr,                                                     \
  88             "\nbad: %08x:%08x " #OP " %08x:%08x != %08x:%08x "          \
  89             "[%08x:%08x]\n",                                            \
  90             HI64(x), LO64(x), HI64(y), LO64(y),                         \
  91             HI64(yy), LO64(yy), HI64(xx), LO64(xx));                    \
  92   }                                                                     \
  93   return (ok);                                                          \
  94 }
  95
  96 TSHIFT(LSL)
  97 TSHIFT(LSR)
  98 TSHIFT(ROL)
  99 TSHIFT(ROR)
 100 TARITH(ADD)
 101 TARITH(SUB)
 102
 103 static test_chunk tests[] = {
 104   { "lsl64", tLSL, { &type_hex, &type_int, &type_hex, 0 } },
 105   { "lsr64", tLSR, { &type_hex, &type_int, &type_hex, 0 } },
 106   { "rol64", tROL, { &type_hex, &type_int, &type_hex, 0 } },
 107   { "ror64", tROR, { &type_hex, &type_int, &type_hex, 0 } },
 108   { "add64", tADD, { &type_hex, &type_hex, &type_hex, 0 } },
 109   { "sub64", tSUB, { &type_hex, &type_hex, &type_hex, 0 } },
 110   { 0, 0, { 0 } }
 111 };
 112
 113 int main(int argc, char *argv[])
 114 {
 115   test_run(argc, argv, tests, SRCDIR "/bits.in");
 116   return (0);
 117 }
 118
 119 /*----- That's all, folks -------------------------------------------------*/