diff --git a/4bit cpu/4bit cpu.circ b/4bit cpu/4bit cpu.circ
index 8a8641f..5592cde 100644
--- a/4bit cpu/4bit cpu.circ
+++ b/4bit cpu/4bit cpu.circ
@@ -33,11 +33,7 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -89,6 +85,7 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -97,280 +94,6 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -489,29 +212,51 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -519,7 +264,37 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -536,73 +311,21 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -686,9 +409,62 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -696,49 +472,6 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -746,42 +479,32 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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@@ -789,62 +512,519 @@ This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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+ addr/data: 8 13
+0 1100 1200 1101 1201 1206
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- addr/data: 8 13
-0
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diff --git a/4bit cpu/ins set.txt b/4bit cpu/ins set.txt
index 99cc00e..74ff320 100644
--- a/4bit cpu/ins set.txt
+++ b/4bit cpu/ins set.txt
@@ -15,4 +15,6 @@
0E-JMPNZ
0F-JMPC
10-JMPNC
-11-HLT
\ No newline at end of file
+11-IN
+12-OUT
+13-HLT
\ No newline at end of file
diff --git a/cpu87.circ b/cpu87.circ
new file mode 100644
index 0000000..37340f5
--- /dev/null
+++ b/cpu87.circ
@@ -0,0 +1,175 @@
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+This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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+ addr/data: 8 8
+0
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+ addr/data: 12 16
+0
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