93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
#include <time.h>
|
|
#include <sys/time.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "registers.h"
|
|
#include "wine.h"
|
|
#include "options.h"
|
|
#include "miscemu.h"
|
|
#include "stddebug.h"
|
|
/* #define DEBUG_INT */
|
|
#include "debug.h"
|
|
|
|
#define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
|
|
#define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
|
|
|
|
|
|
/**********************************************************************
|
|
* INT1A_GetTicksSinceMidnight
|
|
*
|
|
* Return number of clock ticks since midnight.
|
|
*/
|
|
DWORD INT1A_GetTicksSinceMidnight(void)
|
|
{
|
|
struct tm *bdtime;
|
|
struct timeval tvs;
|
|
|
|
/* This should give us the (approximately) correct
|
|
* 18.206 clock ticks per second since midnight.
|
|
*/
|
|
gettimeofday( &tvs, NULL );
|
|
bdtime = localtime( &tvs.tv_sec );
|
|
return (((bdtime->tm_hour * 3600 + bdtime->tm_min * 60 +
|
|
bdtime->tm_sec) * 18206) / 1000) +
|
|
(tvs.tv_usec / 54927);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* INT_Int1aHandler
|
|
*
|
|
* Handler for int 1ah (date and time).
|
|
*/
|
|
void INT_Int1aHandler( struct sigcontext_struct context )
|
|
{
|
|
time_t ltime;
|
|
DWORD ticks;
|
|
struct tm *bdtime;
|
|
|
|
switch(AH_reg(&context))
|
|
{
|
|
case 0:
|
|
ticks = INT1A_GetTicksSinceMidnight();
|
|
CX_reg(&context) = HIWORD(ticks);
|
|
DX_reg(&context) = LOWORD(ticks);
|
|
AX_reg(&context) = 0; /* No midnight rollover */
|
|
dprintf_int(stddeb,"int1a_00 // ticks=%ld\n", ticks);
|
|
break;
|
|
|
|
case 2:
|
|
ltime = time(NULL);
|
|
bdtime = localtime(<ime);
|
|
|
|
CX_reg(&context) = (BIN_TO_BCD(bdtime->tm_hour)<<8) |
|
|
BIN_TO_BCD(bdtime->tm_min);
|
|
DX_reg(&context) = (BIN_TO_BCD(bdtime->tm_sec)<<8);
|
|
|
|
case 4:
|
|
ltime = time(NULL);
|
|
bdtime = localtime(<ime);
|
|
CX_reg(&context) = (BIN_TO_BCD(bdtime->tm_year/100)<<8) |
|
|
BIN_TO_BCD((bdtime->tm_year-1900)%100);
|
|
DX_reg(&context) = (BIN_TO_BCD(bdtime->tm_mon)<<8) |
|
|
BIN_TO_BCD(bdtime->tm_mday);
|
|
break;
|
|
|
|
/* setting the time,date or RTC is not allow -EB */
|
|
case 1:
|
|
/* set system time */
|
|
case 3:
|
|
/* set RTC time */
|
|
case 5:
|
|
/* set RTC date */
|
|
case 6:
|
|
/* set ALARM */
|
|
case 7:
|
|
/* cancel ALARM */
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( &context, 0x1a );
|
|
}
|
|
}
|