How does substraction happen in MIXAL?

06-18-2010, 09:39 AM

webdev

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How does substraction happen in MIXAL?

I am currently reading the Art of Computer Programming by Donald Knuth, volume 1, 3rd edition and cannot understand the way the substraction operator works in MIXAL(specifically example 2 from page 132). SUB 1000 [-][1234][0][0][9] rA before [-][2000][150][0] Cell 1000 [+][ 766][149][?] rA...

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