On Wed, Dec 2, 2015 at 11:44 AM, J O Skip Robinson <jo.skip.robin...@sce.com > wrote:
> I'm grateful to this thread for the news that MVCIN lives on. When it > disappeared on the 3090--talk about unexpected S0C1--I did a brief RIP and > never looked for it again. MVCIN allowed you to reverse a string and use > TRT to find stuff that would otherwise have required a backwards loop > search. Very handy. > You might want to look at the TRTR and TRTRE instructions in the -10 POPS. <quote instruction="TRTRE"> The argument characters of the first operand are used to select function codes from a function-code table designated by general register 1. For TRANS- LATE AND TEST EXTENDED, the argument charac- ters are processed in a left-to-right direction; for TRANSLATE AND TEST REVERSE EXTENDED, the argument characters are processed in a right-to- left direction. When a nonzero function code is selected, it is inserted in general register R2, the related argument address is placed in general regis- ter R1 , and the first-operand length in general register R1 + 1 is decremented by the number of bytes pro- cessed. The operation proceeds until a nonzero func- tion code is encountered, the end of the first operand is reached, or a CPU-determined number of charac- ters have been processed, whichever occurs first. The result is indicated in the condition code. </quote> > > . > . > . > J.O.Skip Robinson > -- Schrodinger's backup: The condition of any backup is unknown until a restore is attempted. Yoda of Borg, we are. Futile, resistance is, yes. Assimilated, you will be. He's about as useful as a wax frying pan. 10 to the 12th power microphones = 1 Megaphone Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
