diff --git a/src/main/dig/lib/74xx/arithmetic/74283.dig b/src/main/dig/lib/74xx/arithmetic/74283.dig
new file mode 100644
index 000000000..80057f3fd
--- /dev/null
+++ b/src/main/dig/lib/74xx/arithmetic/74283.dig
@@ -0,0 +1,516 @@
+
+
+ 1
+
+
+ isDIL
+ true
+
+
+ Description
+ 4-bit binary full adder, alternative pinning
+
+
+ lockedMode
+ true
+
+
+
+
+ In
+
+
+ Description
+ Der Übertrag vom Addierer welcher die
+niederwertigeren Bits addiert. Werden die
+niederwertigsten Bits addiert, ist dieser Eingang
+Null.
+
+
+ Label
+ C0
+
+
+ pinNumber
+ 7
+
+
+
+
+
+ In
+
+
+ Description
+ Das 0. Bit des ersten zu addierenden Wertes.
+
+
+ Label
+ B1
+
+
+ pinNumber
+ 6
+
+
+ Default
+ 1
+
+
+
+
+
+ In
+
+
+ Description
+ Das 1. Bit des ersten zu addierenden Wertes.
+
+
+ Label
+ B2
+
+
+ pinNumber
+ 2
+
+
+
+
+
+ Out
+
+
+ Description
+ Das 0. Bit der Summe.
+
+
+ Label
+ S1
+
+
+ pinNumber
+ 4
+
+
+
+
+
+ In
+
+
+ Description
+ Das 2. Bit des ersten zu addierenden Wertes.
+
+
+ Label
+ B3
+
+
+ pinNumber
+ 15
+
+
+
+
+
+ In
+
+
+ Description
+ Das 3. Bit des ersten zu addierenden Wertes.
+
+
+ Label
+ B4
+
+
+ pinNumber
+ 11
+
+
+ Default
+ 1
+
+
+
+
+
+ Out
+
+
+ Description
+ Das 1. Bit der Summe.
+
+
+ Label
+ S2
+
+
+ pinNumber
+ 1
+
+
+
+
+
+ Out
+
+
+ Description
+ Das 2. Bit der Summe.
+
+
+ Label
+ S3
+
+
+ pinNumber
+ 13
+
+
+
+
+
+ In
+
+
+ Description
+ Das 0. Bit des zweiten zu addierenden Wertes.
+
+
+ Label
+ A1
+
+
+ pinNumber
+ 5
+
+
+
+
+
+ In
+
+
+ Description
+ Das 1. Bit des zweiten zu addierenden Wertes.
+
+
+ Label
+ A2
+
+
+ pinNumber
+ 3
+
+
+ Default
+ 1
+
+
+
+
+
+ In
+
+
+ Description
+ Das 2. Bit des zweiten zu addierenden Wertes.
+
+
+ Label
+ A3
+
+
+ pinNumber
+ 14
+
+
+ Default
+ 1
+
+
+
+
+
+ In
+
+
+ Description
+ Das 3. Bit des zweiten zu addierenden Wertes.
+
+
+ Label
+ A4
+
+
+ pinNumber
+ 12
+
+
+
+
+
+ Out
+
+
+ Description
+ Das 3. Bit der Summe.
+
+
+ Label
+ S4
+
+
+ pinNumber
+ 10
+
+
+
+
+
+ Out
+
+
+ Description
+ Das Übertragsbit, welches an den Adiierer für die
+nächst höherwertigen Bits weitergegeben wird.
+
+
+ Label
+ C4
+
+
+ pinNumber
+ 9
+
+
+
+
+
+ Testcase
+
+
+ Testdata
+
+ # A complete test of all 512 possible additions
+#
+# A line that begins with "repeat([i])" is repeated [i] times.
+# In this case 256 times. Then the variable n goes from 0 to 255.
+# So the values for the inputs are calculated depending on n.
+# The function "bits([m],[v])" takes the lowest m bits from the value v.
+# The expression "bits(4,n>>4)" takes the lowest 4 bits of the value
+# n>>4. Then the resulting bits are used for the inputs A_3 to A_0.
+# All created test vectors are shown in the result table.
+
+ C0 A4 A3 A2 A1 B4 B3 B2 B1 C4 S4 S3 S2 S1
+repeat(256) 0 bits(4,n>>4) bits(4,n) bits(5,(n>>4)+(n&15))
+repeat(256) 1 bits(4,n>>4) bits(4,n) bits(5,(n>>4)+(n&15)+1)
+
+
+
+
+
+
+
+ Add
+
+
+ Bits
+ 4
+
+
+
+
+
+ Splitter
+
+
+ Input Splitting
+ 1*4
+
+
+ Output Splitting
+ 4
+
+
+
+
+
+ Splitter
+
+
+ Input Splitting
+ 1*4
+
+
+ Output Splitting
+ 4
+
+
+
+
+
+ Splitter
+
+
+ Input Splitting
+ 4
+
+
+ Output Splitting
+ 1*4
+
+
+
+
+
+ PowerSupply
+
+
+
+
+ In
+
+
+ Label
+ VCC
+
+
+ pinNumber
+ 16
+
+
+ InDefault
+
+
+
+
+
+
+ In
+
+
+ Label
+ GND
+
+
+ pinNumber
+ 8
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/main/dig/lib/74xx/basic/74266.dig b/src/main/dig/lib/74xx/basic/74266.dig
new file mode 100644
index 000000000..3ccd2144e
--- /dev/null
+++ b/src/main/dig/lib/74xx/basic/74266.dig
@@ -0,0 +1,311 @@
+
+
+ 1
+
+
+ isDIL
+ true
+
+
+ Description
+ quad 2-input XNOR gate
+
+
+ lockedMode
+ true
+
+
+
+
+ In
+
+
+ Label
+ 1A
+
+
+ pinNumber
+ 1
+
+
+
+
+
+ In
+
+
+ Label
+ 1B
+
+
+ pinNumber
+ 2
+
+
+
+
+
+ Out
+
+
+ Label
+ 1Y
+
+
+ pinNumber
+ 3
+
+
+
+
+
+ In
+
+
+ Label
+ 2A
+
+
+ pinNumber
+ 5
+
+
+
+
+
+ In
+
+
+ Label
+ 2B
+
+
+ pinNumber
+ 6
+
+
+
+
+
+ Out
+
+
+ Label
+ 2Y
+
+
+ pinNumber
+ 4
+
+
+
+
+
+ In
+
+
+ Label
+ 3B
+
+
+ pinNumber
+ 9
+
+
+
+
+
+ In
+
+
+ Label
+ 3A
+
+
+ pinNumber
+ 8
+
+
+
+
+
+ Out
+
+
+ Label
+ 3Y
+
+
+ pinNumber
+ 10
+
+
+
+
+
+ In
+
+
+ Label
+ 4A
+
+
+ pinNumber
+ 12
+
+
+
+
+
+ In
+
+
+ Label
+ 4B
+
+
+ pinNumber
+ 13
+
+
+
+
+
+ Out
+
+
+ Label
+ 4Y
+
+
+ pinNumber
+ 11
+
+
+
+
+
+ PowerSupply
+
+
+
+
+ In
+
+
+ Label
+ VCC
+
+
+ pinNumber
+ 14
+
+
+ InDefault
+
+
+
+
+
+
+ In
+
+
+ Label
+ GND
+
+
+ pinNumber
+ 7
+
+
+
+
+
+ XNOr
+
+
+
+
+ XNOr
+
+
+
+
+ XNOr
+
+
+
+
+ XNOr
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/test/java/de/neemann/digital/integration/TestExamples.java b/src/test/java/de/neemann/digital/integration/TestExamples.java
index 80696755d..e1b3017b6 100644
--- a/src/test/java/de/neemann/digital/integration/TestExamples.java
+++ b/src/test/java/de/neemann/digital/integration/TestExamples.java
@@ -29,8 +29,8 @@ public class TestExamples extends TestCase {
*/
public void testDistExamples() throws Exception {
File examples = new File(Resources.getRoot().getParentFile().getParentFile(), "/main/dig");
- assertEquals(208, new FileScanner(this::check).scan(examples));
- assertEquals(116, testCasesInFiles);
+ assertEquals(210, new FileScanner(this::check).scan(examples));
+ assertEquals(117, testCasesInFiles);
}
/**