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

   1 /* -*-c-*-
   2  *
   3  * $Id: bits.c,v 1.1 2000/07/16 12:28:00 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 1.1  2000/07/16 12:28:00  mdw
  34  * Test equipment for the 64-bit arithmetic in `bits.h'.
  35  *
  36  */
  37
  38 /*----- Header files ------------------------------------------------------*/
  39
  40 #include "bits.h"
  41 #include "testrig.h"
  42
  43 /*----- Main code ---------------------------------------------------------*/
  44
  45 #define TSHIFT(OP)                                                      \
  46                                                                         \
  47 static int t##OP(dstr *v)                                               \
  48 {                                                                       \
  49   kludge64 x, xx, y;                                                    \
  50   unsigned s = *(unsigned *)v[1].buf;                                   \
  51   int ok = 1;                                                           \
  52                                                                         \
  53   LOAD64_(x, v[0].buf);                                                 \
  54   LOAD64_(xx, v[2].buf);                                                \
  55   y = x;                                                                \
  56   OP##64_(y, y, s);                                                     \
  57   if (CMP64(y, !=, xx)) {                                               \
  58     ok = 0;                                                             \
  59     fprintf(stderr,                                                     \
  60             "\nbad: %08x:%08x " #OP " %u != %08x:%08x [%08x:%08x]\n",   \
  61             HI64(x), LO64(x), s, HI64(y), LO64(y), HI64(xx), LO64(xx)); \
  62   }                                                                     \
  63   return (ok);                                                          \
  64 }
  65
  66 #define TARITH(OP)                                                      \
  67                                                                         \
  68 static int t##OP(dstr *v)                                               \
  69 {                                                                       \
  70   kludge64 x, y, xx, yy;                                                \
  71   int ok = 1;                                                           \
  72                                                                         \
  73   LOAD64_(x, v[0].buf);                                                 \
  74   LOAD64_(y, v[1].buf);                                                 \
  75   LOAD64_(xx, v[2].buf);                                                \
  76   yy = x;                                                               \
  77   OP##64(yy, yy, y);                                                    \
  78   if (CMP64(yy, !=, xx)) {                                              \
  79     ok = 0;                                                             \
  80     fprintf(stderr,                                                     \
  81             "\nbad: %08x:%08x " #OP " %08x:%08x != %08x:%08x "          \
  82             "[%08x:%08x]\n",                                            \
  83             HI64(x), LO64(x), HI64(y), LO64(y),                         \
  84             HI64(yy), LO64(yy), HI64(xx), LO64(xx));                    \
  85   }                                                                     \
  86   return (ok);                                                          \
  87 }
  88
  89 TSHIFT(LSL)
  90 TSHIFT(LSR)
  91 TSHIFT(ROL)
  92 TSHIFT(ROR)
  93 TARITH(ADD)
  94 TARITH(SUB)
  95
  96 static test_chunk tests[] = {
  97   { "lsl64", tLSL, { &type_hex, &type_int, &type_hex, 0 } },
  98   { "lsr64", tLSR, { &type_hex, &type_int, &type_hex, 0 } },
  99   { "rol64", tROL, { &type_hex, &type_int, &type_hex, 0 } },
 100   { "ror64", tROR, { &type_hex, &type_int, &type_hex, 0 } },
 101   { "add64", tADD, { &type_hex, &type_hex, &type_hex, 0 } },
 102   { "sub64", tSUB, { &type_hex, &type_hex, &type_hex, 0 } },
 103   { 0, 0, { 0 } }
 104 };
 105
 106 int main(int argc, char *argv[])
 107 {
 108   test_run(argc, argv, tests, "bits.test");
 109   return (0);
 110 }
 111
 112 /*----- That's all, folks -------------------------------------------------*/