R. Clayton (rclayton@monmouth.edu)
(no date)
Will the ADD and SUB operators use the same functional unit or will there
be total of 4 functional units: 2 for ADD and 2 for SUB?
Each operation gets its own pair of functional units; add has two adding
units, sub has two subtracting units, and so on.
Will logical operations like AND, OR, and NOT also have 2 functional units for
each operation?
Each operation gets its own pair of functional units; bit-wise and has two
bit-wise anding units, bit-wise or has two bit-wise oring units, and so on.
Unary operations such as not and negation have only one argument, which you
can think of as being both the source and destination:
neg r0
has the effect of
r0 = -r0
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