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/*
* mb3773 - Power Supply Monitor with Watch Dog Timer
*
* Todo:
* Calculate the timeout from parameters.
*
*/
#include "driver.h"
#include "machine/mb3773.h"
static emu_timer *watchdog_timer;
static UINT8 ck = 0;
static TIMER_CALLBACK( watchdog_timeout )
{
mame_schedule_soft_reset(machine);
}
static void reset_timer( void )
{
timer_adjust( watchdog_timer, ATTOTIME_IN_SEC( 5 ), 0, attotime_zero );
}
void mb3773_set_ck( UINT8 new_ck )
{
if( new_ck == 0 && ck != 0 )
{
reset_timer();
}
ck = new_ck;
}
void mb3773_init( void )
{
watchdog_timer = timer_alloc( watchdog_timeout , NULL);
reset_timer();
state_save_register_global( ck );
}
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