From: gneuner2@nospicedham.comcast.net   
      
   On Sat, 19 Nov 2022 11:09:42 -0800 (PST), Paul Edwards   
    wrote:   
      
   >I have implemented TF (trap flag) for the 8086.   
   >   
   >But when I looked up RBIL, it doesn't say that TF   
   >also works for the 80386. INT 1 is complicated   
   >instead.   
   >   
   >So can I single-step an 80386 program?   
   >   
   >It looks like x'cc' still works on an 80386, invoking   
   >INT 3 (from my reading of RBIL).   
   >   
   >Anyone know for sure?   
   >   
   >Thanks. Paul.   
      
   INT 3 works on all x86 processors, but the response differs depending   
   on whether you are in real mode or protected mode.   
      
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