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Four bit adder: Difference between revisions
m
adjusted comment on the reason of using XOR macro and NOT macro, done in that way
m (C: add comment about xor) |
m (adjusted comment on the reason of using XOR macro and NOT macro, done in that way) |
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#define V(X) (*(X))
/* a NOT that does not soil the rest of the host of the single bit */
#define NOT(X) (~(X)&
/* a shortcut to "implement" a XOR using only NOT, AND and OR gates, as
task requirements constrain */
#define XOR(X,Y) ((NOT(X)&(Y)) | ((X)&NOT(Y)))
void halfadder(IN a, IN b, OUT s, OUT c)
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