diff --git a/bus.cpp b/bus.cpp
index 79f796b..6ef05f9 100644
--- a/bus.cpp
+++ b/bus.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <assert.h>
 #include <stdio.h>
 
@@ -74,6 +74,11 @@ uint16_t bus::read(const uint16_t a, const bool word_mode, const bool use_prev)
 			return 0x80;
 		}
 
+		if (a == 0177564) { // console tty status register
+			fprintf(stderr, "console tty status register\n");
+			return 0x80;
+		}
+
 		/// MMU ///
 		if (a >= 0172300 && a < 0172320) {
 			uint16_t t = pages[((a & 017) >> 1)].pdr;
@@ -407,6 +412,12 @@ uint16_t bus::write(const uint16_t a, const bool word_mode, uint16_t value, cons
 			return 128;
 		}
 
+		if (a == 0177566) { // console tty buffer register
+			fprintf(stderr, "bus::write TTY buffer %c\n", value);
+			printf("%c", value & 127);
+			return 128;
+		}
+
 		if (a & 1)
 			D(fprintf(stderr, "bus::writeWord: odd address UNHANDLED\n");)
 		D(fprintf(stderr, "UNHANDLED write %o(%c): %o\n", a, word_mode ? 'B' : ' ', value);)
diff --git a/bus.h b/bus.h
index b7b2f69..c6954f0 100644
--- a/bus.h
+++ b/bus.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/cpu.cpp b/cpu.cpp
index be1d2d8..22728a5 100644
--- a/cpu.cpp
+++ b/cpu.cpp
@@ -1,5 +1,5 @@
-// (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// (C) 2018-2022 by Folkert van Heusden
+// Released under Apache License v2.0
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/cpu.h b/cpu.h
index b88f986..518a2ba 100644
--- a/cpu.h
+++ b/cpu.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <assert.h>
diff --git a/gen.h b/gen.h
index 1824dde..2b90f9e 100644
--- a/gen.h
+++ b/gen.h
@@ -1,5 +1,5 @@
 // (C) 2018-2022 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #ifndef NDEBUG
 #define D(x) do { x } while(0);
 #else
diff --git a/main.cpp b/main.cpp
index f6646eb..1fe28f6 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <poll.h>
 #include <signal.h>
 #include <string.h>
diff --git a/memory.cpp b/memory.cpp
index 13c0601..de5460a 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <string.h>
 
 #include "memory.h"
diff --git a/memory.h b/memory.h
index bf971e6..aa53663 100644
--- a/memory.h
+++ b/memory.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/rk05.cpp b/rk05.cpp
index 21e85fb..422b341 100644
--- a/rk05.cpp
+++ b/rk05.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <errno.h>
 #include <string.h>
 
diff --git a/rk05.h b/rk05.h
index 03b5252..b424058 100644
--- a/rk05.h
+++ b/rk05.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/rx02.cpp b/rx02.cpp
index 28f4463..6b5767f 100644
--- a/rx02.cpp
+++ b/rx02.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <errno.h>
 #include <string.h>
 
diff --git a/rx02.h b/rx02.h
index 2eda04e..36146db 100644
--- a/rx02.h
+++ b/rx02.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/tests.cpp b/tests.cpp
index 4b2efcf..73532f3 100644
--- a/tests.cpp
+++ b/tests.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/tests.h b/tests.h
index e987c20..163bd5c 100644
--- a/tests.h
+++ b/tests.h
@@ -1,3 +1,3 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 void tests(cpu *const c);
diff --git a/tm-11.cpp b/tm-11.cpp
index 2287532..84c1285 100644
--- a/tm-11.cpp
+++ b/tm-11.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <errno.h>
 #include <string.h>
 
diff --git a/tm-11.h b/tm-11.h
index 9452fc3..e4b49a8 100644
--- a/tm-11.h
+++ b/tm-11.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/tty.cpp b/tty.cpp
index 7acdc2f..e94e5b1 100644
--- a/tty.cpp
+++ b/tty.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// // Released under AGPL v3.0
+// // Released under Apache License v2.0
 #include <errno.h>
 #include <poll.h>
 #include <string.h>
diff --git a/tty.h b/tty.h
index 2f0638e..3a456d7 100644
--- a/tty.h
+++ b/tty.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #pragma once
 
 #include <stdint.h>
diff --git a/utils.cpp b/utils.cpp
index 7b56eb6..6211e6e 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <stdarg.h>
 #include <stdint.h>
 #include <string>
diff --git a/utils.h b/utils.h
index 10337a3..8d3652b 100644
--- a/utils.h
+++ b/utils.h
@@ -1,5 +1,5 @@
 // (C) 2018 by Folkert van Heusden
-// Released under AGPL v3.0
+// Released under Apache License v2.0
 #include <stdint.h>
 #include <string>