On 1/17/2012 6:22 PM, Roberts, John J wrote:
Also, is it PL/1 or PL/I?

My mainframe IBM manuals use PL/I.

The early version(s) of the S/360 compilers were inefficient by not using available hardware instructions, e.g., bit fiddling doable with OI and NI was implemented as subroutine calls. And similar to ForTran, each load module included almost the whole subroutine library, thus wasting (then) valuable memory.


Gerhard Postpischil
Bradford, VT

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