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 "stddebug.h"
   8 /* #define DEBUG_INT */
   9 /* #undef  DEBUG_INT */
  10 #include "debug.h"
  11
  12 #ifdef linux
  13 #define inline __inline__  /* So we can compile with -ansi */
  14 #include <linux/sched.h> /* needed for HZ */
  15 #undef inline
  16 #endif
  17
  18 #define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
  19 #define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
  20
  21 void IntBarf(int i, struct sigcontext_struct *context);
  22
  23 int do_int1A(struct sigcontext_struct * context){
  24         time_t ltime;
  25         struct tm *bdtime;
  26         int ticks;
  27
  28     if (Options.relay_debug) {
  29         fprintf(stddeb,"int1A: AX %04x, BX %04x, CX %04x, DX %04x, "
  30                "SI %04x, DI %04x, DS %04x, ES %04x\n",
  31                AX, BX, CX, DX, SI, DI, DS, ES);
  32     }
  33
  34         switch(AH) {
  35         case 0:
  36                 ltime = time(NULL);
  37                 ticks = (int) (ltime * HZ);
  38                 CX = ticks >> 16;
  39                 DX = ticks & 0x0000FFFF;
  40                 AX = 0;  /* No midnight rollover */
  41                 dprintf_int(stddeb,"int1a_00 // ltime=%ld ticks=%ld\n",
  42                         ltime, ticks);
  43                 break;
  44
  45         case 2:
  46                 ltime = time(NULL);
  47                 bdtime = localtime(&ltime);
  48
  49                 CX = (BIN_TO_BCD(bdtime->tm_hour)<<8) | BIN_TO_BCD(bdtime->tm_min);
  50                 DX = (BIN_TO_BCD(bdtime->tm_sec)<<8);
  51
  52         case 4:
  53                 ltime = time(NULL);
  54                 bdtime = localtime(&ltime);
  55                 CX = (BIN_TO_BCD(bdtime->tm_year/100)<<8) | BIN_TO_BCD((bdtime->tm_year-1900)%100);
  56                 DX = (BIN_TO_BCD(bdtime->tm_mon)<<8) | BIN_TO_BCD(bdtime->tm_mday);
  57                 break;
  58
  59                 /* setting the time,date or RTC is not allow -EB */
  60         case 1:
  61                 /* set system time */
  62         case 3:
  63                 /* set RTC time */
  64         case 5:
  65                 /* set RTC date */
  66         case 6:
  67                 /* set ALARM */
  68         case 7:
  69                 /* cancel ALARM */
  70                 break;
  71
  72         default:
  73                 IntBarf(0x1a, context);
  74                 return 1;
  75         };
  76         return 1;
  77 }