static void pit_load(int t)
{
int l = pit.l[t] ? pit.l[t] : 0x10000;
timer_process();
pit.newcount[t] = 0;
pit.disabled[t] = 0;
// pclog("pit_load: t=%i l=%x\n", t, l);
switch (pit.m[t])
{
case 0: /*Interrupt on terminal count*/
pit.count[t] = l;
pit.c[t] = (int)((l << TIMER_SHIFT) * PITCONST);
pit_set_out(t, 0);
pit.thit[t] = 0;
pit.enabled[t] = pit.gate[t];
break;
case 1: /*Hardware retriggerable one-shot*/
pit.enabled[t] = 1;
break;
case 2: /*Rate generator*/
if (pit.initial[t])
{
pit.count[t] = l - 1;
pit.c[t] = (int)(((l - 1) << TIMER_SHIFT) * PITCONST);
pit_set_out(t, 1);
pit.thit[t] = 0;
}
pit.enabled[t] = pit.gate[t];
break;
case 3: /*Square wave mode*/
if (pit.initial[t])
{
pit.count[t] = l;
pit.c[t] = (int)((((l + 1) >> 1) << TIMER_SHIFT) * PITCONST);
pit_set_out(t, 1);
pit.thit[t] = 0;
}
pit.enabled[t] = pit.gate[t];
// pclog("pit_load: square wave mode c=%x\n", pit.c[t]);
break;
case 4: /*Software triggered stobe*/
if (!pit.thit[t] && !pit.initial[t])
pit.newcount[t] = 1;
else
{
pit.count[t] = l;
pit.c[t] = (int)((l << TIMER_SHIFT) * PITCONST);
pit_set_out(t, 0);
pit.thit[t] = 0;
}
pit.enabled[t] = pit.gate[t];
break;
case 5: /*Hardware triggered stobe*/
pit.enabled[t] = 1;
break;
}
static void pit_load(PIT *pit, int t)
{
int l = pit->l[t] ? pit->l[t] : 0x10000;
timer_clock();
pit->newcount[t] = 0;
pit->disabled[t] = 0;
switch (pit->m[t])
{
case 0: /*Interrupt on terminal count*/
pit->count[t] = l;
pit->c[t] = (int64_t)((((int64_t) l) << TIMER_SHIFT) * PITCONST);
pit_set_out(pit, t, 0);
pit->thit[t] = 0;
pit->enabled[t] = pit->gate[t];
break;
case 1: /*Hardware retriggerable one-shot*/
pit->enabled[t] = 1;
break;
case 2: /*Rate generator*/
if (pit->initial[t])
{
pit->count[t] = l - 1;
pit->c[t] = (int64_t)(((((int64_t) l) - 1LL) << TIMER_SHIFT) * PITCONST);
pit_set_out(pit, t, 1);
pit->thit[t] = 0;
}
pit->enabled[t] = pit->gate[t];
break;
case 3: /*Square wave mode*/
if (pit->initial[t])
{
pit->count[t] = l;
pit->c[t] = (int64_t)((((((int64_t) l) + 1LL) >> 1) << TIMER_SHIFT) * PITCONST);
pit_set_out(pit, t, 1);
pit->thit[t] = 0;
}
pit->enabled[t] = pit->gate[t];
break;
case 4: /*Software triggered stobe*/
if (!pit->thit[t] && !pit->initial[t])
pit->newcount[t] = 1;
else
{
pit->count[t] = l;
pit->c[t] = (int64_t)((l << TIMER_SHIFT) * PITCONST);
pit_set_out(pit, t, 0);
pit->thit[t] = 0;
}
pit->enabled[t] = pit->gate[t];
break;
case 5: /*Hardware triggered stobe*/
pit->enabled[t] = 1;
break;
}
