/* This is called at every vsync. */
void drive_vsync_hook(void)
{
unsigned int dnr;
drive_update_ui_status();
for (dnr = 0; dnr < DRIVE_NUM; dnr++) {
drive_t *drive = drive_context[dnr]->drive;
if (drive->enable) {
if (drive->idling_method != DRIVE_IDLE_SKIP_CYCLES) {
if (drive->type == DRIVE_TYPE_2000 || drive->type == DRIVE_TYPE_4000) {
drivecpu65c02_execute(drive_context[dnr], maincpu_clk);
} else {
drivecpu_execute(drive_context[dnr], maincpu_clk);
}
}
if (drive->idling_method == DRIVE_IDLE_NO_IDLE) {
/* if drive is never idle, also rotate the disk. this prevents
* huge peaks in cpu usage when the drive must catch up with
* a longer period of time.
*/
rotation_rotate_disk(drive);
}
/* printf("drive_vsync_hook drv %d @clk:%d\n", dnr, maincpu_clk); */
}
}
}
static void iecbus_cpu_write_conf1(BYTE data, CLOCK clock)
{
drive_t *drive;
drive = drive_context[0]->drive;
drivecpu_execute(drive_context[0], clock);
iec_update_cpu_bus(data);
if (iec_old_atn != (iecbus.cpu_bus & 0x10)) {
iec_old_atn = iecbus.cpu_bus & 0x10;
if (drive->type != DRIVE_TYPE_1581)
viacore_signal(drive_context[0]->via1d1541, VIA_SIG_CA1,
iec_old_atn ? 0 : VIA_SIG_RISE);
else if (!iec_old_atn)
ciacore_set_flag(drive_context[0]->cia1581);
}
if (drive->type != DRIVE_TYPE_1581)
iecbus.drv_bus[8] = (((iecbus.drv_data[8] << 3) & 0x40)
| ((iecbus.drv_data[8] << 6)
& ((~iecbus.drv_data[8] ^ iecbus.cpu_bus) << 3)
& 0x80));
else
iecbus.drv_bus[8] = (((iecbus.drv_data[8] << 3) & 0x40)
| ((iecbus.drv_data[8] << 6)
& ((iecbus.drv_data[8] | iecbus.cpu_bus) << 3)
& 0x80));
iec_update_ports();
}
void drive_cpu_execute_one(drive_context_t *drv, CLOCK clk_value)
{
drive_t *drive = drv->drive;
if (drive->type == DRIVE_TYPE_2000 || drive->type == DRIVE_TYPE_4000) {
drivecpu65c02_execute(drv, clk_value);
} else {
drivecpu_execute(drv, clk_value);
}
}
void parallel_cable_cpu_execute(void)
{
unsigned int dnr;
for (dnr = 0; dnr < DRIVE_NUM; dnr++) {
if (drive_context[dnr]->drive->enable
&& drive_context[dnr]->drive->parallel_cable)
drivecpu_execute(drive_context[dnr], maincpu_clk);
}
}
/* execute drive cpu for all drives that are connected to the respective port
on the C64
*/
void parallel_cable_cpu_execute(int type)
{
unsigned int dnr;
int port;
port = portmap[type];
for (dnr = 0; dnr < DRIVE_NUM; dnr++) {
if (drive_context[dnr]->drive->enable && drive_context[dnr]->drive->parallel_cable) {
if (portmap[drive_context[dnr]->drive->parallel_cable] == port) {
drivecpu_execute(drive_context[dnr], maincpu_clk);
}
}
}
}
static void iecbus_cpu_write_conf2(BYTE data, CLOCK clock)
{
drive_t *drive;
drive = drive_context[1]->drive;
drivecpu_execute(drive_context[1], clock);
DEBUG_IEC_CPU_WRITE(data);
iec_update_cpu_bus(data);
if (iec_old_atn != (iecbus.cpu_bus & 0x10)) {
iec_old_atn = iecbus.cpu_bus & 0x10;
switch (drive->type) {
case DRIVE_TYPE_1581:
if (!iec_old_atn) {
ciacore_set_flag(drive_context[1]->cia1581);
}
break;
case DRIVE_TYPE_2000:
case DRIVE_TYPE_4000:
viacore_signal(drive_context[1]->via4000, VIA_SIG_CA2,
iec_old_atn ? 0 : VIA_SIG_RISE);
break;
default:
viacore_signal(drive_context[1]->via1d1541, VIA_SIG_CA1,
iec_old_atn ? 0 : VIA_SIG_RISE);
}
}
switch (drive->type) {
case DRIVE_TYPE_1581:
case DRIVE_TYPE_2000:
case DRIVE_TYPE_4000:
iecbus.drv_bus[9] = (((iecbus.drv_data[9] << 3) & 0x40)
| ((iecbus.drv_data[9] << 6)
& ((iecbus.drv_data[9] | iecbus.cpu_bus) << 3)
& 0x80));
break;
default:
iecbus.drv_bus[9] = (((iecbus.drv_data[9] << 3) & 0x40)
| ((iecbus.drv_data[9] << 6)
& ((~iecbus.drv_data[9] ^ iecbus.cpu_bus) << 3)
& 0x80));
}
iec_update_ports();
}
/* This is called at every vsync. */
void drive_vsync_hook(void)
{
unsigned int dnr;
drive_update_ui_status();
for (dnr = 0; dnr < DRIVE_NUM; dnr++)
{
drive_t *drive;
drive = drive_context[dnr]->drive;
if (drive->idling_method != DRIVE_IDLE_SKIP_CYCLES && drive->enable)
drivecpu_execute(drive_context[dnr], maincpu_clk);
}
machine_drive_vsync_hook();
}
