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

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   Message 3,281 of 4,255   
   mutazilah@gmail.com to Joe Monk   
   Re: segmentation   
   20 Sep 22 13:12:28   
   
   From: muta...@gmail.com   
      
   On Tuesday, September 20, 2022 at 8:41:54 PM UTC+8, Joe Monk wrote:   
   > > Wrong. In zarch, in am64, 32 bit programs    
   > > don't wrap.    
   > >    
   > > You're right about s390, but not right if    
   > > you're suggesting it's not possible to    
   > > create a modified s390.   
   > Hercules is the hercules team's own implementation of a software defined   
   machine that can execute the IBM instruction set. Hercules is not s/370.   
   Hercules is not s/390. Hercules is not z/Arch. When you monkey around with   
   hercules, all you are doing is    
   changing the way the hercules VM executes. You are not in the least changing   
   anything about the way IBM does/did it, nor are you changing the specs for an   
   IBM architecture.    
   >    
   > So, if you want to say it's possible to create a modified hercules, then   
   sure. But thats all it is, a modified hercules.    
   >    
   > "Hercules is compliant with IBM's ALS-1, ALS-2 and ALS-3 architectural level   
   sets to the degree necessary to run all OS/390 versions through 2.10 and known   
   versions of z/OS in both ARCHLVL 1 and ARCHLVL 2 mode, and Linux and z/VM in   
   both ESA/390 and z/   
   Architecture mode."    
   >    
   > Joe   
      
   I didn't mention Hercules and I didn't say   
   I could force IBM to do something and   
   I didn't say I could magically change   
   existing s/390 processors. Nor did I   
   say I could force IBM to make   
   documentation changes.   
      
   What I said was:   
      
   1. 32 bit programs can run on an   
   unmodified zarch in am64.   
      
   2. It would be possible for someone,   
   not necessarily IBM, to make a slight   
   modification to a s390 chip, to make   
   it run 32 bit programs that access the   
   entire 4 GB.   
      
   If you dispute either of these technical,   
   not political, statements, then tell me   
   which one and very clearly why, so   
   that we can attempt to come to a   
   common understanding.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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