2 Comments

1. mazuki

   Posted December 24, 2009 at 2:58 AM

   here’s what i got from it

   variables
   a,i

   while i > -1{
   if i < 6 {a = a SHL 1}
   else {
   i = 0;
   while i < 4 {
   a = a SHR 1}
   exit;
   }

   a is the constant 1 stored in the code, eax will always return 0 and the var_4 will always return 0×04

   i optimized the code to be something like this:

   for i = 0 to 10
   if i < 6{a = a*2;}
   else{a = a/2;}
2. Mike

   Posted January 3, 2010 at 3:56 AM

   Pseudo code:

   
var_4=1;
var_8=0;

   while(var_8<6)
   {
   var_4=var_4*2;
   var_8++;
   }

   var_8=0;

   while(var_8<4)
   {
   var_4=var_4/2;
   var_8++;
   }
   exit;

   var_4 goes from 1 to 64 then back down to 4 as its final value

   mazuki’s optimized code is probably the actual source.