int B3

Int B3 - IBM ROM BASIC - used while in interpreter
Int B3/AH=70h - ZIPKEY - GET VERSION
Int B3/AH=71h - ZIPKEY - CONVERT TWO-LETTER ABBREVIATION TO STATE CODE
Int B3/AH=72h - ZIPKEY - CONVERT STATE CODE TO TWO-LETTER ABBREVIATION
Int B3/AH=73h - ZIPKEY - CONVERT STATE CODE TO STATE NAME
Int B3/AH=74h - ZIPKEY - CONVERT ZIPCODE TO ASCII DIGITS
Int B3/AH=75h - ZIPKEY - LOOK UP STATE CODE FOR ZIPCODE
Int B3/AH=76h - ZIPKEY - LOOK UP CITY AND STATE FOR ZIPCODE
Int B3/AH=77h - ZIPKEY - PLAY BACK EXIT KEY FOR ENTRY WITH GIVEN ZIPCODE
Int B3/AH=78h - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN STATE AND CITY
Int B3/AH=79h - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN CITY
Int B3/AH=7Ah - ZIPKEY - FETCH AN ENTRY FROM A PREVIOUS LOOKUP
Int B3/AH=7Bh - ZIPKEY - GET VALUES NEEDED TO SAVE ZIPKEY CONTEXT
Int B3/AH=7Ch - ZIPKEY - RESTORE ZIPKEY CONTEXT
Int B3/AH=7Dh - ZIPKEY - REQUEST POP UP
Int B3/AH=7Eh - ZIPKEY - GET NAME OF PRIMARY CITY FOR A ZIPCODE REGION
Int B3/AH=7Fh - ZIPKEY - ENABLE/DISABLE HOTKEYS
Int B3/AH=80h - ZIPKEY v2.0+ - DETERMINE STATE FOR AREA CODE