HP 3000 Manuals HP 3000 Manuals
Overview In earlier versions of this COBOL system, all run-time library routines were accessed by calling a single hexadecimal number. These routines, known as call-by-number routines, are being replaced by routines accessed by calling a name: call-by-name routines. In some cases, the call-by-name routine has additional features. For purposes of portability, you are recommended to use call-by-name routines in preference to any call-by-number routine. For details on the call-by-name routines available with this COBOL system, see Chapter 8 , Library Routines (Call-by-Name). Parameters to the call-by-number routines must not be defined in the Linkage Section or Local-Storage Section of your program, and must be in the first 64 kilobytes (64K) of the Data Division for portability to DOS. Routines Available There are call-by-number routines available to perform the following functions: 82 put a character to the screen 83 read a character from the keyboard 8C split a file-name 8D join a file-name 91 set/read switches and miscellaneous A7 modify user attribute behavior AF modify ACCEPT/DISPLAY behavior B0 disable interrupt key B7 control screen I/O B8 control screen I/O D9 test keyboard status E5 sound beep E6 relocate cursor F4 pack data into a byte F5 unpack data into byte