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[/] [structural_vhdl/] [tags/] [vlsi/] [key_regulator/] [substract.vst] - Rev 4
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-- VHDL structural description generated from `substract`
-- date : Mon Jul 30 16:47:44 2001
-- Entity Declaration
ENTITY substract IS
PORT (
a : in BIT; -- a
b : in BIT; -- b
bin : in BIT; -- bin
diff : out BIT; -- diff
bout : out BIT; -- bout
vdd : in BIT; -- vdd
vss : in BIT -- vss
);
END substract;
-- Architecture Declaration
ARCHITECTURE VST OF substract IS
COMPONENT nao2o22_x1
port (
i0 : in BIT; -- i0
i1 : in BIT; -- i1
i2 : in BIT; -- i2
i3 : in BIT; -- i3
nq : out BIT; -- nq
vdd : in BIT; -- vdd
vss : in BIT -- vss
);
END COMPONENT;
COMPONENT xr2_x1
port (
i0 : in BIT; -- i0
i1 : in BIT; -- i1
q : out BIT; -- q
vdd : in BIT; -- vdd
vss : in BIT -- vss
);
END COMPONENT;
COMPONENT an12_x1
port (
i0 : in BIT; -- i0
i1 : in BIT; -- i1
q : out BIT; -- q
vdd : in BIT; -- vdd
vss : in BIT -- vss
);
END COMPONENT;
COMPONENT inv_x1
port (
i : in BIT; -- i
nq : out BIT; -- nq
vdd : in BIT; -- vdd
vss : in BIT -- vss
);
END COMPONENT;
SIGNAL auxsc7 : BIT; -- auxsc7
SIGNAL auxsc8 : BIT; -- auxsc8
SIGNAL auxsc9 : BIT; -- auxsc9
SIGNAL auxsc1 : BIT; -- auxsc1
BEGIN
bout : nao2o22_x1
PORT MAP (
vss => vss,
vdd => vdd,
nq => bout,
i3 => auxsc9,
i2 => a,
i1 => auxsc8,
i0 => auxsc7);
diff : xr2_x1
PORT MAP (
vss => vss,
vdd => vdd,
q => diff,
i1 => auxsc1,
i0 => bin);
auxsc1 : xr2_x1
PORT MAP (
vss => vss,
vdd => vdd,
q => auxsc1,
i1 => a,
i0 => b);
auxsc9 : inv_x1
PORT MAP (
vss => vss,
vdd => vdd,
nq => auxsc9,
i => b);
auxsc8 : an12_x1
PORT MAP (
vss => vss,
vdd => vdd,
q => auxsc8,
i1 => a,
i0 => b);
auxsc7 : inv_x1
PORT MAP (
vss => vss,
vdd => vdd,
nq => auxsc7,
i => bin);
end VST;