newmux8to1.vbe

来自「i need of vhdl code for 32-bit risc proc」· VBE 代码 · 共 30 行

ENTITY newmux8to1 IS
PORT (
inn1 : IN BIT;
inn2 : IN BIT;
inn3 : IN BIT;
inn4 : IN BIT;
inn5 : IN BIT;
inn6 : IN BIT;
inn7 : IN BIT;
inn8 : IN BIT;
enn1 : IN BIT;
enn2 : IN BIT;
enn3 : IN BIT;
outn1 : OUT BIT
);
END newmux8to1;

ARCHITECTURE newmux8to1_arch OF newmux8to1 IS

BEGIN
outn1<= ( ( inn1 AND (NOT(enn1)) AND (NOT(enn2)) AND (NOT(enn3)) ) OR
          ( inn2 AND (NOT(enn1)) AND (NOT(enn2)) AND  enn3 ) OR
          ( inn3 AND (NOT(enn1)) AND enn2 AND (NOT(enn3)) ) OR
          ( inn4 AND (NOT(enn1)) AND enn2 AND enn3 ) OR
          ( inn5 AND enn1 AND (NOT(enn2)) AND (NOT(enn3)) ) OR
          ( inn6 AND enn1 AND (NOT(enn2)) AND  enn3 ) ) OR
          ( inn7 AND enn1 AND enn2 AND (NOT(enn3)) ) OR
          ( inn8 AND enn1 AND enn2 AND enn3 );
END;