On Wed, 19 Jan 2011 07:33:15 -0500 Peter Relson <[email protected]> wrote:
:>(Binyamin posted this on IBM-Main in response to my incorrectly-targeted :>post. It seemed more appropriate to respond here) :>>Pretty much any macro that generates a PC that is 64 sensitive will use :>LLGT :>>R14 somewhere in the path which will wipe the top half. :>That is somewhat incorrect. They typically do so only if it is indicated :>that :>the program is running AMODE 64. When not AMODE 64, they do a L. :>I can try to get that clarified in the book -- an AMODE 64 program should :>not :>expect that the high half of reg 14 is preserved across an interface. Wouldn't it be easier to make a global statement about R14 being altered rather than that the top half (alone) is preserved when AMODE=24/31? -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies.
