A recent thread on REXX raises the question of what compilers support interfaces that require passing an address in R0 in addition to the PLIST address in R1. A secondary issue is how to handle multiple callbacks from a non-LE program without the overhead of establishing the LE environment each time.The obvious use case is a driver program that initialises REXX, passes REXX a script and is then called every time the script either calls a routine that the driver has included in a function package or passes a command string to one of the environments that the driver registered. Think ISPF EDIT or XEDIT writen in PL/I, only less ambitious. .
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
