I have not used XDC or CA-Xpediter, but I would imagine you could write a debugger in "mostly" Rexx with some assembler. Take a look at the TSO/E Programming Services manual for a discussion of how to write a native TSO full screen program.
You will also have to give some thought to the "debugging services" you wish to provide: how you will implement breakpoints, stepping through instructions, and so forth. Also to the various storage and register displays, etc. If I were considering doing this as a commercial product, I would consider - the market for developer tools is always a difficult one - the market for z/OS developer tools is small and shrinking - CA-Xpediter kind of owns the big-deal corporate market space. CA is a tough incumbent to displace. - XDC is pretty established in the "word-of-mouth" market - There are other competitors as well. ASG has a debugger that competes with CA-Xpediter that they got from the Viasoft acquisition. Good luck! Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Lindy Mayfield Sent: Saturday, December 30, 2006 7:40 AM To: [email protected] Subject: How to write a full-screen Rexx debugger? Does anyone know how one might write a full-screen Rexx debugger, like z/XDC or Xpediter? I've spent a couple of evenings digging through the Rexx Reference, but so far I've not stumbled on a way to do it. Or even if it can be done. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

