From: joemonk64@gmail.com   
      
   > Concerning PL/I, big problem was that    
   > PL/I had too much. In particular, PL/I had exceptions    
   > and it took some time to learn how to generate good    
   > code when exceptions are present. Anyway, around    
   > 1975 IBM had its system verision of PL/I, which IIUC    
   > allowed object code which was competivie with    
   > hand-written assembly.    
      
   Earlier than that. IBM in the '60s had BSL (basic systems language), which   
   they used extensively. The follow-on was PL/S (a variant of PL/I) followed by   
   its proprietary PL/AS, which is still considered top secret even though it has   
   now been replaced by    
   PL/X - also top secret.   
      
   http://www.bitsavers.org/pdf/ibm/360/bsl/Z28-6682-2_BSL_usersGuide.pdf   
   http://www.bitsavers.org/pdf/ibm/360/pls/GC28-6794-0_PLSIIguideMay74.pdf   
      
   The PL/I F compiler was released in the '60s...   
      
   Joe   
      
   --- SoupGate-Win32 v1.05   
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