Re: Aufgaben und Übungen,

	b a x	b a y
0	0 0 0	0 0 1
1	0 0 1	1 0 1
2	0 1 0	0 1 1
3	0 1 1	0 0 1
4	1 0 0	1 1 1
5	1 0 1	0 0 1
6	1 1 0	0 1 1
7	1 1 1	1 1 1


	b a x	b
0	0 0 0	0
1	0 0 1	1
2	0 1 0	0
3	0 1 1	0
4	1 0 0	1
5	1 0 1	0
6	1 1 0	0
7	1 1 1	1

	b a x	a
0	0 0 0	0
1	0 0 1	0
2	0 1 0	1
3	0 1 1	0
4	1 0 0	1
5	1 0 1	0
6	1 1 0	1
7	1 1 1	1

	b a x	y
0	0 0 0	1
1	0 0 1	1
2	0 1 0	1
3	0 1 1	1
4	1 0 0	1
5	1 0 1	1
6	1 1 0	1
7	1 1 1	1



	b a x	b
1	0 0 1	1
4	1 0 0	1
7	1 1 1	1

	b a x	a
2	0 1 0	1
4	1 0 0	1
6	1 1 0	1
7	1 1 1	1

	b a x	y
0	0 0 0	1
1	0 0 1	1
2	0 1 0	1
3	0 1 1	1
4	1 0 0	1
5	1 0 1	1
6	1 1 0	1
7	1 1 1	1



	b a x	b
Gruppe 1:
1	0 0 1	1
4	1 0 0	1
Gruppe 3:
7	1 1 1	1

b <= (not b and not a and x) or
		(b and not a and not x) or
		(b and a and x)

	b a x	a
Gruppe 1:
2	0 1 0	1
4	1 0 0	1
Gruppe 2:
6	1 1 0	1
Gruppe 3:
7	1 1 1	1

0:6		- 1 0
1:4		1 - 0
6:7		1 1 -

a <= (a and not x) or
		(b and not x) or
		(b and a)

	b a x	y
0	0 0 0	1
1	0 0 1	1
2	0 1 0	1
3	0 1 1	1
4	1 0 0	1
5	1 0 1	1
6	1 1 0	1
7	1 1 1	1

y <= 1

b <= (not b and not a and x) or
		(b and not a and not x) or
		(b and a and x)
a <= (a and not x) or
		(b and not x) or
		(b and a)
y <= 1

b <= (b or a or not x) and
		(not b or a or x) and
		(not b or not a or not x)
a <= (not a or x) and
		(not b or x) and
		(not b or not a)
y ???

entitity meinausgangsschaltnetz is
port
(
	a, b, x: in bit;
	y: out bit
);
end;

entitiy meinuebergangsschaltnetz is
port
(
	a, b: inout bit;
	x: in bit;
);
end;

architecture verhalten of meinausgangsschaltnetz is
begin
	y <= 1
end;

architecture verhalten of meinuebergangsschaltnetz is
begin
	b <= (not b and not a and x) or
		(b and not a and not x) or
		(b and a and x);
	a <= (a and not x) or
		(b and not x) or
		(b and a);
end;

architecture verhaltendnf of meinuebergangsschaltnetz is
begin
	b <= (b or a or not x) and
		(not b or a or x) and
		(not b or not a or not x);
	a <= (not a or x) and
		(not b or x) and
		(not b or not a);
end;

architecture verhaltendnf of meinausgangsschaltnetz is
begin
	y <= 1;
end;