miscemu/int1a.c

   1 #include <time.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include "registers.h"
   5 #include "wine.h"
   6 #include "options.h"
   7 #include "miscemu.h"
   8 #include "stddebug.h"
   9 /* #define DEBUG_INT */
  10 #include "debug.h"
  11
  12 #define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
  13 #define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
  14
  15 int do_int1a(struct sigcontext_struct * context){
  16         time_t ltime;
  17         DWORD ticks;
  18         struct tm *bdtime;
  19
  20     if (debugging_relay) {
  21         fprintf(stddeb,"int1A: AX %04x, BX %04x, CX %04x, DX %04x, "
  22                "SI %04x, DI %04x, DS %04x, ES %04x\n",
  23                AX, BX, CX, DX, SI, DI, DS, ES);
  24     }
  25
  26         switch(AH) {
  27         case 0:
  28                 ticks = GetTickCount();
  29                 CX = ticks >> 16;
  30                 DX = ticks & 0x0000FFFF;
  31                 AX = 0;  /* No midnight rollover */
  32                 dprintf_int(stddeb,"int1a_00 // ltime=%ld ticks=%ld\n",
  33                         ltime, ticks);
  34                 break;
  35
  36         case 2:
  37                 ltime = time(NULL);
  38                 bdtime = localtime(&ltime);
  39
  40                 CX = (BIN_TO_BCD(bdtime->tm_hour)<<8) | BIN_TO_BCD(bdtime->tm_min);
  41                 DX = (BIN_TO_BCD(bdtime->tm_sec)<<8);
  42
  43         case 4:
  44                 ltime = time(NULL);
  45                 bdtime = localtime(&ltime);
  46                 CX = (BIN_TO_BCD(bdtime->tm_year/100)<<8) | BIN_TO_BCD((bdtime->tm_year-1900)%100);
  47                 DX = (BIN_TO_BCD(bdtime->tm_mon)<<8) | BIN_TO_BCD(bdtime->tm_mday);
  48                 break;
  49
  50                 /* setting the time,date or RTC is not allow -EB */
  51         case 1:
  52                 /* set system time */
  53         case 3:
  54                 /* set RTC time */
  55         case 5:
  56                 /* set RTC date */
  57         case 6:
  58                 /* set ALARM */
  59         case 7:
  60                 /* cancel ALARM */
  61                 break;
  62
  63         default:
  64                 IntBarf(0x1a, context);
  65                 return 1;
  66         };
  67         return 1;
  68 }