On 12/3/2010 2:40 PM, Blaicher, Chris wrote:
In answer to the original question, there is no space in the instruction to add the bits. Changing the system to accommodate a 8 byte instruction is a BIG jump. LAY has worked for me in the past, and usually I can bury it a few instructions back, but even if I have to put it right up against the MVC, it will beat the heck out of a MVCL.
This restriction results in field placement favoritism. The fields to which access via an SS instruction is expected will tend to be placed within +4K of the control block or work area whereas fields used by shorter instructions would tend to be placed elsewhere. For the programs I'm researching, a cursory examination seems to suggest that rearranging the fields could result in *none* of the SS instructions needing to be reworked. One can only hope... -- 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/
