static BYTE iecbus_cpu_read_conf3(CLOCK clock)
{
drivecpu_execute_all(clock);
serial_iec_device_exec(clock);
return iecbus.cpu_port;
}
static void iecbus_cpu_write_conf3(BYTE data, CLOCK clock)
{
unsigned int dnr;
drivecpu_execute_all(clock);
serial_iec_device_exec(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;
for (dnr = 0; dnr < DRIVE_NUM; dnr++) {
if (iecbus_device[8 + dnr] == IECBUS_DEVICE_TRUEDRIVE) {
switch (drive_context[dnr]->drive->type) {
case DRIVE_TYPE_1581:
if (!iec_old_atn) {
ciacore_set_flag(drive_context[dnr]->cia1581);
}
break;
case DRIVE_TYPE_2000:
case DRIVE_TYPE_4000:
viacore_signal(drive_context[dnr]->via4000, VIA_SIG_CA2,
iec_old_atn ? 0 : VIA_SIG_RISE);
break;
default:
viacore_signal(drive_context[dnr]->via1d1541, VIA_SIG_CA1,
iec_old_atn ? 0 : VIA_SIG_RISE);
}
}
}
}
for (dnr = 0; dnr < DRIVE_NUM; dnr++) {
if (iecbus_device[8 + dnr] == IECBUS_DEVICE_TRUEDRIVE) {
unsigned int unit;
unit = dnr + 8;
switch (drive_context[dnr]->drive->type) {
case DRIVE_TYPE_1581:
case DRIVE_TYPE_2000:
case DRIVE_TYPE_4000:
iecbus.drv_bus[unit] = (((iecbus.drv_data[unit] << 3) & 0x40)
| ((iecbus.drv_data[unit] << 6)
& ((iecbus.drv_data[unit]
| iecbus.cpu_bus) << 3) & 0x80));
break;
default:
iecbus.drv_bus[unit] = (((iecbus.drv_data[unit] << 3) & 0x40)
| ((iecbus.drv_data[unit] << 6)
& ((~iecbus.drv_data[unit]
^ iecbus.cpu_bus) << 3) & 0x80));
}
}
}
iec_update_ports();
}
static void iecbus_cpu_write_conf3(BYTE data, CLOCK clock)
{
unsigned int dnr;
drivecpu_execute_all(clock);
serial_iec_device_exec(clock);
iec_update_cpu_bus(data);
if (iec_old_atn != (iecbus.cpu_bus & 0x10))
{
iec_old_atn = iecbus.cpu_bus & 0x10;
for (dnr = 0; dnr < DRIVE_NUM; dnr++)
if( iecbus_device[8+dnr] == IECBUS_DEVICE_TRUEDRIVE )
{
if (drive_context[dnr]->drive->type != DRIVE_TYPE_1581)
viacore_signal(drive_context[dnr]->via1d1541, VIA_SIG_CA1,
iec_old_atn ? 0 : VIA_SIG_RISE);
else if (!iec_old_atn)
ciacore_set_flag(drive_context[dnr]->cia1581);
}
}
for (dnr = 0; dnr < DRIVE_NUM; dnr++)
if( iecbus_device[8+dnr] == IECBUS_DEVICE_TRUEDRIVE )
{
unsigned int unit;
unit = dnr + 8;
if (drive_context[dnr]->drive->type != DRIVE_TYPE_1581)
iecbus.drv_bus[unit] = (((iecbus.drv_data[unit] << 3) & 0x40)
| ((iecbus.drv_data[unit] << 6)
& ((~iecbus.drv_data[unit]
^ iecbus.cpu_bus) << 3) & 0x80));
else
iecbus.drv_bus[unit] = (((iecbus.drv_data[unit] << 3) & 0x40)
| ((iecbus.drv_data[unit] << 6)
& ((iecbus.drv_data[unit]
| iecbus.cpu_bus) << 3) & 0x80));
}
iec_update_ports();
}
