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ALU symbol ???

Discussion in 'Electronic Basics' started by KruSat, Feb 5, 2006.

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  1. KruSat

    KruSat Guest

    What is the significance of keeping the symbol of ALU as.....
    (view the symbol using const. width text like "courier")

    A B
    |||| ||||
    \~~~~\ /~~~~/
    \ \/ /
    \ ALU /

    while the other symbols are simply blocks....

    plz. help me to solve my query...
  2. Rich Grise

    Rich Grise Guest

    Maybe if you embellished the symbol a little bit:

    Where "F" is the "Funtion" selector, A and B are the operands, and S is
    the result. I suppose they _could_ have just drawn a box, but that doesn't
    impart the sense of what happens - A and B get conglomerated together
    somehow, and the output is a whole new number. And F can be anything - AND,
    OR, NAND, NOR, XOR, XNOR, ADD, SUB, MULT, DIV, SHIFT - whatever.
    (admittedly, MULT and DIV would need more bits of output. ;-) )

    Hope This Helps!
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