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A comment on 0x40 Assembly Riddles. Parent comment

Re:0x40 Assembly Riddles by jgeralnik on Saturday January 10, 2015 @11:58AM (#8867126)
Agreed. The second snippet (http://www.xorpd.net/pages/xchg_rax/snip_01.html) is relatively simple to understand and is now my favorite two opcode program.
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Re:0x40 Assembly Riddles by kaoD on Saturday January 10, 2015 @02:14PM (#8867588)
Is this the Fibonacci sequence?

EDIT: For anyone curious, being rax and rdx the starting terms, the rcx-th term is found in rax at the end of the loop.

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Re:0x40 Assembly Riddles by jgeralnik on Saturday January 10, 2015 @02:17PM (#8867597)
Yup. The xadd opcode adds the two registers together and swaps them so that the previous element is always in the same register.
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