| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * LDC2 source code |
| 4 | * |
| 5 | * $Date: 2007/03/26 01:00:40 $ |
| 6 | * $Author: hachti $ |
| 7 | * |
| 8 | * $Log: silent_code.cpp,v $ |
| 9 | * Revision 2.0 2007/03/26 01:00:40 hachti |
| 10 | * *** empty log message *** |
| 11 | * |
| 12 | * |
| 13 | ******************************************************************************/ |
| 14 | |
| 15 | #include "silent_code.hh" |
| 16 | |
| 17 | //#include <stdio.h> |
| 18 | |
| 19 | unsigned char silent_demangle (unsigned char in) |
| 20 | { |
| 21 | if (in & 64) |
| 22 | switch (in) { |
| 23 | case 0174: |
| 24 | return 05; |
| 25 | break; |
| 26 | case 0374: |
| 27 | return 045; |
| 28 | break; |
| 29 | case 0175: |
| 30 | return 012; |
| 31 | break; |
| 32 | case 0375: |
| 33 | return 052; |
| 34 | break; |
| 35 | case 0176: |
| 36 | return 021; |
| 37 | break; |
| 38 | case 0376: |
| 39 | return 061; |
| 40 | break; |
| 41 | case 0177: |
| 42 | return 023; |
| 43 | break; |
| 44 | case 0377: |
| 45 | return 063; |
| 46 | break; |
| 47 | default: // Illegal branch |
| 48 | return 0; |
| 49 | break; |
| 50 | } else { |
| 51 | if (in & 128) |
| 52 | in |= 32; |
| 53 | return in; |
| 54 | } |
| 55 | return 0; // Never executed |
| 56 | } |
| 57 | |
| 58 | unsigned short combine466 (unsigned char *raw) { |
| 59 | unsigned short r1, r2, r3; |
| 60 | unsigned short result=0; |
| 61 | r1 = silent_demangle ((raw)[0]) & 017; |
| 62 | r2 = silent_demangle ((raw)[1]) & 077; |
| 63 | r3 = silent_demangle ((raw)[2]) & 077; |
| 64 | |
| 65 | result=r3; |
| 66 | result|=r2<<6; |
| 67 | result|=r1<<12; |
| 68 | // printf ("data: %02x %02x %02x %04x \n",r1,r2,r3,result); |
| 69 | return result; |
| 70 | } |
| 71 | |