>> Jon Perryman wrote:>> Keith is talking about dump analysis.  Show original 
>> message 


> Robin Vowels wrote:  
> Perhaps. But even if he was, the link map and assembly listing deals with 
> that issue.

>>  Think of optimization as a chaotic programmer. 

> The last time I used a dump to find bugs in a compiled program was about 35 
>years ago.
> PL/I provides all the information required because it has debugging 
> facilities built in. 

PL/I is an application programming language where the compiler has knows enough 
to give you everything you need to debug the problem. System level programs are 
very different and often require a dump. Multi-tasking requires dumps because 
you need to know about tasks PL/I can't possibly know about. PL/I doesn't know 
about CB chains so you may need to find out how you arrived at the wrong CB. If 
there is a storage overlay, then your program may not be the cause.
Regards, Jon.   

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