//ѕосле операции частное помещаетс¤ в ax, а остаток - в dx.
void _div (tCommandWithOperands cmd)
{
tWord left = getOperandValue(cmd.left);
tWord right = getOperandValue(cmd.right);
if (right == 0)
{
printf("ERROR: Division by zero!");
_hlt(cmd);
}
regValue[AX] = left / right;
regValue[DX] = left % right;
regValue[FLAGS] = ZeroFlag*(regValue[AX] == 0);
}
int
getc(FILE *stream)
{
char ch;
if (stream->lastc)
{
ch = stream->lastc;
stream->lastc = 0;
return (int)ch;
}
while (!read(stream->fd, (void *)&ch, 1))
_hlt();
return (int)ch;
}
void keDoSched()
{
uint32 i;
uint32 j;
_cli();
i=keSchedNextTask();
while(i==0xFFFFFFFF)
{
_sti();
_hlt();
_cli();
i=keSchedNextTask();
} // not any task can be sched
if(i==currentTaskId)
{
_sti();
return; // only the current task can be sched
}
j=currentTaskId;
currentTaskId=i;
_switch(&(tasks[i]->esp), &(tasks[j]->esp));
}
