On Tue, 9 Nov 2010 17:47:54 -0700 Brian Kennelly <brian+ibm-m...@bkennelly.net> wrote:
:>The offset in a BRC is relative to the instruction, whether it is executed :>directly or by EX, so you cannot easily execute it out of line without :>recalculating the offset or simulating execution. It is easier to restore :>the instruction and execute inline. That makes some sense. It took me a while to figure out why TEST was disabling my breakpoint, :>On Tue, Nov 9, 2010 at 17:32, Tony Harminc <t...@harminc.net> wrote: :>> On 9 November 2010 17:45, Rick Fochtman <rfocht...@ync.net> wrote: :>> > -------------------------------<snip>------------------------------ :>> > Any ideas why this weird restriction exists? :>> > ----------------------------<unsnip>----------------------------- :>> > I seriously doubt if TEST has been updated in "donkey's years". I've :>> noticed other restrictions. :>> Well it can't be "donkey's years", since there have been updates to at :>> least detect things like this, whatever problem their code was having :>> with it. There are others restrictions: you can't even set a :>> breakpoint on a PR, even though it's a 2-byte instruction, and so is :>> the SVC 97 they use as a breakpoint. But why they allow certain :>> breakpoints just once... Perhaps it's on things that are hard to :>> EXecute reliably. Hmmm... Needs more thought. Hard to know if it's :>> just that they don't want to udpate old code with certain assumptions, :>> or if it's really difficult to do for some reason. -- Binyamin Dissen <bdis...@dissensoftware.com> 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. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
