sys/arch/pmax/test/fp7.c

   1 #include <stdio.h>
   2 #include <ctype.h>
   3 #include <math.h>
   4
   5 int lineno;
   6
   7 union {
   8         unsigned w[2];
   9         double  d;
  10 } uda, udb, udc;
  11
  12 /*
  13  * Read test vectors from file and test the fp emulation by
  14  * comparing it with the hardware.
  15  */
  16 main(argc, argv)
  17         int argc;
  18         char **argv;
  19 {
  20         register char *cp;
  21         register int c;
  22         char buf[10];
  23         unsigned arg[4];
  24
  25         for (lineno = 1; ; lineno++) {
  26                 c = scanf("%x %x", &arg[1], &arg[0]);
  27                 if (c < 0)
  28                         break;
  29                 if (c != 2) {
  30                         fprintf(stderr, "line %d: expected 2 args\n",
  31                                 lineno);
  32                         goto skip;
  33                 }
  34
  35                 uda.w[0] = arg[0];
  36                 uda.w[1] = arg[1];
  37
  38                 printf("line %d: (%x,%x) = %f\n",
  39                         lineno, uda.w[1], uda.w[0], uda.d);
  40         skip:
  41                 while ((c = getchar()) != EOF && c != '\n')
  42                         ;
  43         }
  44 }
  45
  46 trapsignal(p, sig, code)
  47         int p, sig, code;
  48 {
  49         printf("line %d: signal(%d, %x)\n", lineno, sig, code);
  50 }