PC Emulator Support

The GG2 Bus+ board is compatible with the software emulators CrossPC
and PCTask.  CrossPC (written by  Mark Tomlinson  is packaged with
CrossDOS 5 and is available from  Consultron  or from most Amiga
distributors.    Utilities Unlimited  has expressed an intent to
support the GG2 Bus+ under the Emplant/PC product.


PCTask (written by  Chris Hames  is available from  Quasar Distribution 
outside of the U.S.A. and from  DevWare  within the USA.  

Both CrossPC and PCTask map all PC software calls to I/O locations through 
the GG2 Bus+ card.  This means you can run your PC software under either
emulator just as though you had a bridgeboard, and you can control your
plug-in cards using the software originally supplied.

At the present time, neither CrossPC nor PCTask implement the full 
capability of the GG2 Bus+ card.  Neither emulator supports accesses to
PC memory space registers through the GG2 Bus+ , and interrupt support
is somewhat limited.  At present, the only interrupt support under 
either emulator is through the GG2 Bus+ serial and parallel drivers,
"ibmser.device" and "ibmprint.device".  By designating these as your
port drivers, you can access PC IO cards or internal modems you have
plugged in while within the emulator.

Note that once you designate the GG2 Bus+ drivers to be used under an 
emulator, you cannot use those drivers at the same time (multitask) with 
other Amiga software.  The emulator will lock the devices for its own use.