On 12/3/2010 12:59 PM, Farley, Peter x23353 wrote:
C/C++ (and MetalC) will use the latest and greatest architecture instructions for ARCH(8),TUNE(8) (at V1R10, for z10) or ARCH(9),TUNE(9) (at V1R12 for z196) compiler options. Enterprise COBOL never does. I don't have access to Enterprise PL1, so I can't say what it uses.
I'm familiar with C/C++ ARCH and TUNE. My question is an architectural one that deals with the lack of SS-instruction functionality in the set of instructions supporting 20-bit (aka "long") displacements. An examination of some programs here that appeared (at first) to be candidates for potential long-displacement relief shows that MVC and CLC are some of the most heavily used instructions. :-( -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 310-338-0400 x318 [email protected] http://www.phoenixsoftware.com/
