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 the chapter Library Routines (Call-by-Name). This chapter lists the routines that are available, and the parameters that you need to specify for each. 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: Routine Summary ------------------------------------------------- 82 Put a character to the screen. 91 Miscellaneous. A7 Modify user attribute behavior. AF Modify ACCEPT/DISPLAY behavior. B0 Disable interrupt key. E5 Sound beep. F4 Pack data into a byte. F5 Unpack data from a byte.