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comp.lang.asm.x86

Ahh, the lost art of x86 assembly

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Message 2,866 of 4,675

Melzzzzz to Rod Pemberton

Re: Branching two check increment pays o

19 Jul 17 20:46:11

   From: Melzzzzz@nospicedham.zzzzz.com   
      
   On 2017-07-19, Rod Pemberton    
   wrote:   
   > On Wed, 19 Jul 2017 17:13:54 +0000 (UTC)   
   > Melzzzzz  wrote:   
   >   
   >> I have following code snippet:   
   >>   
   >>     cmp r9,1   
   >>     je .one   
   >>     add rdi,r9   
   >>     sub rdx,r9   
   >>     jmp .L0   
   >> .one:   
   >>     inc rdi   
   >>     dec rdx   
   >>     jmp .L0   
   >>   
   >   
   > Eh, where is "cmp r9,0" check?   
   It is never 0.   
      
   > What about a .two section? .three? .four?   
   Heh, you gave me idea ;)   
      
      
      
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