pc-tools/ldc2/src/silent_code.cpp

   1 #include "silent_code.hh"
   2
   3 //#include <stdio.h>
   4
   5 unsigned char silent_demangle (unsigned char in)
   6 {
   7     if (in & 64)
   8         switch (in) {
   9         case 0174:
  10             return 05;
  11             break;
  12         case 0374:
  13             return 045;
  14             break;
  15         case 0175:
  16             return 012;
  17             break;
  18         case 0375:
  19             return 052;
  20             break;
  21         case 0176:
  22             return 021;
  23             break;
  24         case 0376:
  25             return 061;
  26             break;
  27         case 0177:
  28             return 023;
  29             break;
  30         case 0377:
  31             return 063;
  32             break;
  33         default: // Illegal branch
  34             return 0;
  35             break;
  36     } else {
  37         if (in & 128)
  38             in |= 32;
  39         return in;
  40     }
  41     return 0; // Never executed
  42 }
  43
  44 unsigned short combine466 (unsigned char *raw) {
  45     unsigned short r1, r2, r3;
  46     unsigned short result=0;
  47     r1 = silent_demangle ((raw)[0]) & 017;
  48     r2 = silent_demangle ((raw)[1]) & 077;
  49     r3 = silent_demangle ((raw)[2]) & 077;
  50
  51     result=r3;
  52     result|=r2<<6;
  53     result|=r1<<12;
  54  //    printf ("data: %02x %02x %02x   %04x \n",r1,r2,r3,result);
  55     return result;
  56 }
  57