SIMInstallHand	gequ	$8000
SIMRemoveHand	gequ	$8001
SIMGetVersion	gequ	$8002

* SIM Error codes
SIMNoError	gequ	0
SIMAlreadyInst	gequ	1
SIMInvalidAddr	gequ	2
SIMATalkActive	gequ	3
SIMNotInstalled gequ	4
SIMInvalidPort gequ	5
SIMNotFound	gequ	6

* SIM Port codes
SIMModemPort   gequ  2
SIMPrinterPort gequ  1