ABEL Program #3

MODULE MUX

INTERFACE (A3..A0, S1, S0 -> B3..B0);

TITLE '4-1 Multiplexor'

"Inputs

A3..A0 PIN; " data inputs

S1, S0 PIN; " Rotate amount

"Outputs

B3..B0 PIN; " data outputs

"Aliases

A = [A3..A0];

B = [B3..B0];

S = [S1,S0];

EQUATIONS

B.OE = [S1 & S0, S1 & !S0, !S1 & S0, !S1 & !S0];

END

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