From: james.harris.1@nospicedham.gmail.com   
      
   On 07/03/2019 06:35, Terje Mathisen wrote:   
   > On Wednesday, March 6, 2019 at 2:47:41 PM UTC-5, James Harris wrote:   
   >> A small programming challenge if you are interested, just for fun.   
   >   
   > What happens if you do:   
   >   
   >     neg eax   
   >     mov eax,0   
   >     adc eax,eax   
   >   
   > This does not use any extra regs, and the NEG and the MOV should still   
   > run in the same cycle even if they both use EAX as the target. This is   
   > because the MOV form is known to not depend on the previous value in   
   > EAX, so it can be started even before the NEG.   
      
   Good one!   
      
      
   --   
   James Harris   
      
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