I don't read it that way but I am less than certain of my interpretation. Some CUSE examples in Appendix A would be nice, eh?
I tried Googling for that and got this which seems to support my interpretation of CUSE: http://ibmmainframes.com/about23525.html It also shares my "well then, what IS CUSE good for?" FWIW, both of my stings are anticipated to be < 256 bytes. Charles -----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Seymour J Metz Sent: Wednesday, March 14, 2018 9:22 AM To: [email protected] Subject: Re: Two string instruction questions If your search string is less than 256 bytes then CUSE should work, if I am reading th PoOps correctly. Set R0 to the length of the search string. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Assembler List <[email protected]> on behalf of Charles Mills <[email protected]> Sent: Wednesday, March 14, 2018 11:51 AM To: [email protected] Subject: Two string instruction questions 1. Is there a machine instruction that will find one string within another? That given "Now is the time" and "is" would find the "is" and return a pointer to it? A machine instruction analog of Rexx POS? 2. Searching the PoOp for such an instruction led me to CUSE. It does not seem that CUSE could be used for this - is that correct? If I am reading CUSE correctly, then given "Now is the time", "All is well" and 2 or 3 would return the position of "is". Is my reading correct? What would that be good for? What would be a reasonable real-world use?
