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   alt.os.development      Operating system development chatter      4,255 messages   

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   Message 2,810 of 4,255   
   mutazilah@gmail.com to Joe Monk   
   Re: PDOS/86   
   23 Aug 21 17:50:22   
   
   From: muta...@gmail.com   
      
   On Tuesday, August 24, 2021 at 3:34:40 AM UTC+10, Joe Monk wrote:   
      
   > > Its not possible. RX instruction format only allows 12 bits for the   
   displacement... to keep things in a 4K page :)   
   > >   
   > > You can write single CSECT programs today. Nothing stopping that.   
   > >   
   > RXY is the instruction format for 20-bit displacements...   
      
   Which allows a 1 MiB CSECT, right?   
      
   If you exceed 1 MiB, what do you do? New base   
   registers, same as you would do for RX instructions?   
      
   Regardless, the idea would be to have a register   
   dedicated to a less than 1 MiB data section, right?   
      
   And what executable formats do this?   
      
   Thanks. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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