On 2020-10-24, at 13:48:42, Charles Mills wrote:
> 
> There's another macro exercise. Given MYBLKHDR,'EYECATCH' to generate MVI
> MYBLKHDR,C'E'/MVC MYBLKHDR+1(L'MYBLKHDR-1),=C'YECATCH' 
> 
> An immediate instructions also "solves" my eyecatcher compare query,
> lamenting the lack of "CLCIN."
>  
Yes.


> CLI for the first character followed by a CLC for the remainder would have
> the advantage that probably more than 9 times out of 10 the CLI would be
> sufficient.
>  
I had imagined that the OP planned to search not with a program
but intereactively in a browser.

How likely are false positives?  Are there any characters to avoid
perhaps because they might be likely in Packed decimal values.


> -----Original Message-----
> From: Jonathan Scott
> Sent: Saturday, October 24, 2020 8:13 AM
>     ...
> The use of MVCIN to set a data area eyecatcher is incredibly
> inefficient.
>  
But is the code path heavily traveled?

-- gil

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