miscemu/int1a.c

   1 #include <time.h>
   2 #include <stdio.h>
   3 #include "wine.h"
   4
   5 #ifdef linux
   6 #include <linux/sched.h> /* needed for HZ */
   7 #endif
   8
   9 #define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
  10 #define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
  11
  12 int do_int1A(struct sigcontext_struct * context){
  13         time_t ltime;
  14         struct tm *bdtime;
  15         int ticks;
  16
  17         switch((context->sc_eax >> 8) & 0xff){
  18         case 0:
  19                 ltime = time(NULL);
  20                 ticks = (int) (ltime * HZ);
  21                 context->sc_ecx = ticks >> 16;
  22                 context->sc_edx = ticks & 0x0000FFFF;
  23                 context->sc_eax = 0;  /* No midnight rollover */
  24                 break;
  25
  26         case 2:
  27                 ltime = time(NULL);
  28                 bdtime = localtime(&ltime);
  29
  30                 context->sc_ecx = (BIN_TO_BCD(bdtime->tm_hour)<<8) | BIN_TO_BCD(bdtime->tm_min);
  31                 context->sc_edx = (BIN_TO_BCD(bdtime->tm_sec)<<8);
  32
  33         case 4:
  34                 ltime = time(NULL);
  35                 bdtime = localtime(&ltime);
  36                 context->sc_ecx = (BIN_TO_BCD(bdtime->tm_year/100)<<8) | BIN_TO_BCD((bdtime->tm_year-1900)%100);
  37                 context->sc_edx = (BIN_TO_BCD(bdtime->tm_mon)<<8) | BIN_TO_BCD(bdtime->tm_mday);
  38                 break;
  39
  40                 /* setting the time,date or RTC is not allow -EB */
  41         case 1:
  42                 /* set system time */
  43         case 3:
  44                 /* set RTC time */
  45         case 5:
  46                 /* set RTC date */
  47         case 6:
  48                 /* set ALARM */
  49         case 7:
  50                 /* cancel ALARM */
  51                 break;
  52
  53         default:
  54                 fprintf(stderr,"Unable to handle int 0x1A AX %04x\n", context->sc_eax & 0xffffL);
  55                 return 1;
  56         };
  57         return 1;
  58 }