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

   1 /* -*-c-*-
   2  *
   3  * $Id: bits.c,v 1.2 2000/10/14 16:46:44 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 1.2  2000/10/14 16:46:44  mdw
  34  * Make sure that the bits testcase gets its test vector from the source
  35  * directory.
  36  *
  37  * Revision 1.1  2000/07/16 12:28:00  mdw
  38  * Test equipment for the 64-bit arithmetic in `bits.h'.
  39  *
  40  */
  41
  42 /*----- Header files ------------------------------------------------------*/
  43
  44 #include "bits.h"
  45 #include "testrig.h"
  46
  47 /*----- Main code ---------------------------------------------------------*/
  48
  49 #define TSHIFT(OP)                                                      \
  50                                                                         \
  51 static int t##OP(dstr *v)                                               \
  52 {                                                                       \
  53   kludge64 x, xx, y;                                                    \
  54   unsigned s = *(unsigned *)v[1].buf;                                   \
  55   int ok = 1;                                                           \
  56                                                                         \
  57   LOAD64_(x, v[0].buf);                                                 \
  58   LOAD64_(xx, v[2].buf);                                                \
  59   y = x;                                                                \
  60   OP##64_(y, y, s);                                                     \
  61   if (CMP64(y, !=, xx)) {                                               \
  62     ok = 0;                                                             \
  63     fprintf(stderr,                                                     \
  64             "\nbad: %08x:%08x " #OP " %u != %08x:%08x [%08x:%08x]\n",   \
  65             HI64(x), LO64(x), s, HI64(y), LO64(y), HI64(xx), LO64(xx)); \
  66   }                                                                     \
  67   return (ok);                                                          \
  68 }
  69
  70 #define TARITH(OP)                                                      \
  71                                                                         \
  72 static int t##OP(dstr *v)                                               \
  73 {                                                                       \
  74   kludge64 x, y, xx, yy;                                                \
  75   int ok = 1;                                                           \
  76                                                                         \
  77   LOAD64_(x, v[0].buf);                                                 \
  78   LOAD64_(y, v[1].buf);                                                 \
  79   LOAD64_(xx, v[2].buf);                                                \
  80   yy = x;                                                               \
  81   OP##64(yy, yy, y);                                                    \
  82   if (CMP64(yy, !=, xx)) {                                              \
  83     ok = 0;                                                             \
  84     fprintf(stderr,                                                     \
  85             "\nbad: %08x:%08x " #OP " %08x:%08x != %08x:%08x "          \
  86             "[%08x:%08x]\n",                                            \
  87             HI64(x), LO64(x), HI64(y), LO64(y),                         \
  88             HI64(yy), LO64(yy), HI64(xx), LO64(xx));                    \
  89   }                                                                     \
  90   return (ok);                                                          \
  91 }
  92
  93 TSHIFT(LSL)
  94 TSHIFT(LSR)
  95 TSHIFT(ROL)
  96 TSHIFT(ROR)
  97 TARITH(ADD)
  98 TARITH(SUB)
  99
 100 static test_chunk tests[] = {
 101   { "lsl64", tLSL, { &type_hex, &type_int, &type_hex, 0 } },
 102   { "lsr64", tLSR, { &type_hex, &type_int, &type_hex, 0 } },
 103   { "rol64", tROL, { &type_hex, &type_int, &type_hex, 0 } },
 104   { "ror64", tROR, { &type_hex, &type_int, &type_hex, 0 } },
 105   { "add64", tADD, { &type_hex, &type_hex, &type_hex, 0 } },
 106   { "sub64", tSUB, { &type_hex, &type_hex, &type_hex, 0 } },
 107   { 0, 0, { 0 } }
 108 };
 109
 110 int main(int argc, char *argv[])
 111 {
 112   test_run(argc, argv, tests, SRCDIR "/bits.test");
 113   return (0);
 114 }
 115
 116 /*----- That's all, folks -------------------------------------------------*/