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Puzzle: PowerPC Flag Simulation on x86

2019-05-072006-04-01 by Myria

This week’s puzzle is to copy the carry flag to the high bit of ah.  You may destroy any other register, the flags, and the other 24 bits of eax.  Shortest sequence wins. read more

Categories Puzzle, x867 Comments

How NOP nearly became a non-NOP on AMD64

2019-05-072006-03-18 by Michael Steil

AMD64 is a quite clean extension of the i386 instruction set, it obsoletes many rarely used features of the i386 and introduces new registers, making the instruction set a lot more… logical. read more

Categories Trivia, x864 Comments

First assembly puzzle!

2006-03-14 by Myria

This is our first assembly language puzzle for the new site! These puzzles are tests to see whether you are good enough of an assembly nerd, and to learn some tricks if you’re not =^_^= read more

Categories Puzzle23 Comments
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