VC1541::VC1541()
{
name = "1541";
debug(2, "Creating virtual VC1541 at address %p\n", this);
// Create sub components
mem = new VC1541Memory();
cpu = new CPU();
cpu->setName("1541CPU");
cpu->chipModel = CPU::MOS6502;
// Register sub components
VirtualComponent *subcomponents[] = { mem, cpu, &via1, &via2, &disk, NULL };
registerSubComponents(subcomponents, sizeof(subcomponents));
// Register snapshot items
SnapshotItem items[] = {
// Configuration items
{ &bitAccuracy, sizeof(bitAccuracy), KEEP_ON_RESET },
{ &sendSoundMessages, sizeof(sendSoundMessages), KEEP_ON_RESET },
// Internal state
{ &bitReadyTimer, sizeof(bitReadyTimer), CLEAR_ON_RESET },
{ &byteReadyCounter, sizeof(byteReadyCounter), CLEAR_ON_RESET },
{ &rotating, sizeof(rotating), CLEAR_ON_RESET },
{ &redLED, sizeof(redLED), CLEAR_ON_RESET },
{ &diskPartiallyInserted, sizeof(diskPartiallyInserted), CLEAR_ON_RESET },
{ &halftrack, sizeof(halftrack), CLEAR_ON_RESET },
{ &bitoffset, sizeof(bitoffset), CLEAR_ON_RESET },
{ &zone, sizeof(zone), CLEAR_ON_RESET },
{ &read_shiftreg, sizeof(read_shiftreg), CLEAR_ON_RESET },
{ &write_shiftreg, sizeof(write_shiftreg), CLEAR_ON_RESET },
{ &sync, sizeof(sync), CLEAR_ON_RESET },
// Disk properties (will survive reset)
{ &diskInserted, sizeof(diskInserted), KEEP_ON_RESET },
{ NULL, 0, 0 }};
registerSnapshotItems(items, sizeof(items));
sendSoundMessages = true;
resetDisk();
}
void
VC1541::ejectDisk()
{
if (!hasDisk())
return;
// Open lid (write protection light barrier will be blocked)
setWriteProtection(true);
// Drive will notice the change in its interrupt routine...
sleepMicrosec((uint64_t)200000);
// Remove disk (write protection light barrier is no longer blocked)
setWriteProtection(false);
resetDisk();
c64->putMessage(MSG_VC1541_DISK, 0);
if (sendSoundMessages)
c64->putMessage(MSG_VC1541_DISK_SOUND, 0);
}
VC1541::VC1541()
{
name = "1541";
debug(2, "Creating virtual VC1541 at address %p\n", this);
// Create sub components
mem = new VC1541Memory();
cpu = new CPU();
cpu->setName("1541CPU");
cpu->chipModel = CPU::MOS6502;
// Register snapshot items
SnapshotItem items[] = {
// Configuration
{ &bitAccuracy, sizeof(bitAccuracy) },
// Internal state
{ &bitReadyTimer, sizeof(bitAccuracy) },
{ &byteReadyCounter, sizeof(byteReadyCounter) },
{ &rotating, sizeof(rotating) },
{ &redLED, sizeof(redLED) },
{ &diskInserted, sizeof(diskInserted) },
{ &writeProtected, sizeof(writeProtected) },
{ &sendSoundMessages, sizeof(sendSoundMessages) },
// Read/Write logic
{ &halftrack, sizeof(halftrack) },
{ &bitoffset, sizeof(bitoffset) },
{ &zone, sizeof(zone) },
{ &read_shiftreg, sizeof(read_shiftreg) },
{ &write_shiftreg, sizeof(write_shiftreg) },
{ &sync, sizeof(sync) },
{ NULL, 0 }
};
registerSnapshotItems(items, sizeof(items));
sendSoundMessages = true;
resetDisk();
}
void
VC1541::ejectDisk()
{
if (!hasDisk())
return;
// Open lid (this blocks the light barrier)
setDiskPartiallyInserted(true);
// Let the drive notice the blocked light barrier in its interrupt routine ...
sleepMicrosec((uint64_t)200000);
// Erase disk data and reset write protection flag
resetDisk();
// Remove disk (this unblocks the light barrier)
setDiskPartiallyInserted(false);
// Notify listener
c64->putMessage(MSG_VC1541_DISK, 0);
if (sendSoundMessages)
c64->putMessage(MSG_VC1541_DISK_SOUND, 0);
}
