Thanks at work we were looking to trace some  huge Assembler programs initially 
debug tool was used and it ran it into lots of problems I have been using test 
test because it’s not a source level debugger has less issues and runs smoother 
the programs are really old and I doubt there are many BRAS or those newer 
instructions that TEST just does once and removes the breakpoint 

I know with debug tool you cannot trace self modifying instructions but I 
wonder if debug tool traces these newer instructions more than just once 


Thanks 




> On Mar 3, 2019, at 1:20 AM, Binyamin Dissen <[email protected]> 
> wrote:
> 
> A poor (non-existant?) implementation of support for relative and other new
> instructions. 
> 
> On Fri, 1 Mar 2019 10:57:29 -0500 Joseph Reichman <[email protected]>
> wrote:
> 
> :>I am looking for some clarifications on the following documentation from the
> :>TSO TEST AT subcommand
> :>
> :> 
> :>
> :>. any instructions that save the current PSW address except BAL, BALR, BAS,
> :>BASR, BSM, or BASSM.
> :>
> :>A single pass breakpoint is removed automatically during execution of the GO
> :>subcommand. After
> :>
> :>resuming execution at the breakpoint, the breakpoint is no longer in effect
> :>until you establish it again by
> :>
> :>using the AT subcommand. If you want to establish the breakpoint, you must
> :>use the AT subcommand
> :>
> :>after you issue the GO subcommand, not before.
> :>
> :> 
> :>
> :> 
> :>
> :>"Any instruction that updates the current PSW are executed only once" is
> :>there an exact list of these instructions anywhere
> :>
> :> 
> :>
> :>Thanks    
> :>
> :>
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> --
> 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.
> 
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