From: muta...@gmail.com   
      
   On Friday, November 4, 2022 at 6:40:09 PM UTC+8, Joe Monk wrote:   
   > > I can most definitely do a malloc of 8 GB under z/OS in AM64   
   > > to get a contiguous 4 GB area on a 4 GB boundary, suitable   
   > > for running 32-bit software, so long as I carefully fudge the   
   > > high 32 bits of registers before running it.   
   > >   
   > Your PDPCLIB wont work. GETMAIN doesnt work on z/OS for any memory size   
   greater than 2GB. To get anything bigger than 2GB, you have to use IARV64, and   
   do memory object management...   
   >   
   > I dont see any of that written into PDOS code.   
      
   Sure, it hasn't been written yet.   
      
   It's just what I want to do.   
      
   I can do something on the mainframe that I can't do on   
   the x64 at least.   
      
   Also I don't necessarily need to use my own C compiler and   
   library for the pdos-generic OS. I would use it for the 32-bit   
   applications that get an entire 4 GB for themselves though.   
      
   BFN. Paul.   
      
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