144000 INT 14 - I1541 - INSTALLATION CHECK
144001 INT 14 - I1541 - TEST IF 1541 CABLE CONNECTED
144002 INT 14 - I1541 - SELECT LPT PORT FOR OUTPUT
144003 INT 14 - I1541 - RESET ALL DEVICES
144004 INT 14 - I1541 - SEND LISTEN SIGNAL
144005 INT 14 - I1541 - SEND SECONDARY ADDRESS FOR LISTEN
144006 INT 14 - I1541 - SEND UNLISTEN SIGNAL
144007 INT 14 - I1541 - SEND TALK SIGNAL
144008 INT 14 - I1541 - SEND SECONDARY ADDRESS FOR TALK
144009 INT 14 - I1541 - SEND UNTALK SIGNAL
14400A INT 14 - I1541 - SEND A BYTE TO A DEVICE
14400B INT 14 - I1541 - RECEIVE A BYTE FROM A DEVICE
14400C INT 14 - I1541 - WAIT
14400D INT 14 - I1541 - LONGWAIT
14400E INT 14 - I1541 - GET INFO