diff --git a/build.sh b/build.sh
index 85d115b..2610770 100755
--- a/build.sh
+++ b/build.sh
@@ -81,8 +81,8 @@ else
 fi
 
 ${CC} ${CFLAGS} src/uxnasm.c -o bin/uxnasm
-${CC} ${CFLAGS} src/uxn.c src/devices/system.c src/devices/file.c src/devices/datetime.c src/devices/mouse.c src/devices/controller.c src/devices/screen.c src/devices/audio.c src/uxnemu.c ${UXNEMU_LDFLAGS} ${FILE_LDFLAGS} -o bin/uxnemu
-${CC} ${CFLAGS} src/uxn.c src/devices/system.c src/devices/file.c src/devices/datetime.c src/uxncli.c ${FILE_LDFLAGS} -o bin/uxncli
+${CC} ${CFLAGS} src/uxn.c src/devices/system.c src/devices/console.c src/devices/file.c src/devices/datetime.c src/devices/mouse.c src/devices/controller.c src/devices/screen.c src/devices/audio.c src/uxnemu.c ${UXNEMU_LDFLAGS} ${FILE_LDFLAGS} -o bin/uxnemu
+${CC} ${CFLAGS} src/uxn.c src/devices/system.c src/devices/console.c src/devices/file.c src/devices/datetime.c src/uxncli.c ${FILE_LDFLAGS} -o bin/uxncli
 
 if [ $install = 1 ]
 then
diff --git a/mkfile b/mkfile
index a9caaca..b4bc1ef 100644
--- a/mkfile
+++ b/mkfile
@@ -14,6 +14,7 @@ HFILES=\
 	src/devices/mouse.h\
 	src/devices/screen.h\
 	src/devices/system.h\
+	src/devices/console.h\
 	src/uxn.h\
 
 CLEANFILES=$TARG $ROM
@@ -34,19 +35,19 @@ bin:
 %.rom:Q: %.tal bin/uxnasm
 	bin/uxnasm $stem.tal $target >/dev/null
 
-bin/uxncli: file.$O datetime.$O system.$O uxncli.$O uxn.$O
+bin/uxncli: file.$O datetime.$O system.$O console.$O uxncli.$O uxn.$O
 	$LD $LDFLAGS -o $target $prereq
 
 bin/uxnasm: uxnasm.$O
 	$LD $LDFLAGS -o $target $prereq
 
-bin/uxnemu: audio.$O controller.$O datetime.$O file.$O mouse.$O screen.$O system.$O uxn.$O uxnemu.$O
+bin/uxnemu: audio.$O controller.$O datetime.$O file.$O mouse.$O screen.$O system.$O console.$O uxn.$O uxnemu.$O
 	$LD $LDFLAGS -o $target $prereq
 
 (uxnasm|uxncli|uxnemu|uxn)\.$O:R: src/\1.c
 	$CC $CFLAGS -Isrc -o $target src/$stem1.c
 
-(audio|controller|datetime|file|mouse|screen|system)\.$O:R: src/devices/\1.c
+(audio|controller|datetime|file|mouse|screen|system|console)\.$O:R: src/devices/\1.c
 	$CC $CFLAGS -Isrc -o $target src/devices/$stem1.c
 
 nuke:V: clean
diff --git a/src/devices/audio.h b/src/devices/audio.h
index bbf4afd..eab4c47 100644
--- a/src/devices/audio.h
+++ b/src/devices/audio.h
@@ -12,6 +12,11 @@ WITH REGARD TO THIS SOFTWARE.
 
 typedef signed int Sint32;
 
+
+#define AUDIO_VERSION 1
+#define AUDIO_DEIMASK 0x0000
+#define AUDIO_DEOMASK 0x0000
+
 #define SAMPLE_FREQUENCY 44100
 #define POLYPHONY 4
 
diff --git a/src/devices/console.c b/src/devices/console.c
new file mode 100644
index 0000000..db0dd20
--- /dev/null
+++ b/src/devices/console.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../uxn.h"
+#include "console.h"
+
+/*
+Copyright (c) 2022-2023 Devine Lu Linvega, Andrew Alderwick
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE.
+*/
+
+int
+console_input(Uxn *u, char c, int type)
+{
+	Uint8 *d = &u->dev[0x10];
+	d[0x2] = c;
+	d[0x7] = type;
+	return uxn_eval(u, PEEK2(d));
+}
+
+void
+console_deo(Uint8 *d, Uint8 port)
+{
+	switch(port) {
+	case 0x8:
+		fputc(d[port], stdout);
+		fflush(stdout);
+		return;
+	case 0x9:
+		fputc(d[port], stderr);
+		fflush(stderr);
+		return;
+	}
+}
\ No newline at end of file
diff --git a/src/devices/console.h b/src/devices/console.h
new file mode 100644
index 0000000..7e10d5b
--- /dev/null
+++ b/src/devices/console.h
@@ -0,0 +1,22 @@
+/*
+Copyright (c) 2022 Devine Lu Linvega, Andrew Alderwick
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE.
+*/
+
+#define CONSOLE_VERSION 1
+#define CONSOLE_DEIMASK 0x0000
+#define CONSOLE_DEOMASK 0x0000
+
+#define CONSOLE_STD 0x1
+#define CONSOLE_ARG 0x2
+#define CONSOLE_EOA 0x3
+#define CONSOLE_END 0x4
+
+int console_input(Uxn *u, char c, int type);
+void console_deo(Uint8 *d, Uint8 port);
diff --git a/src/devices/controller.h b/src/devices/controller.h
index 487cb86..bbc68e1 100644
--- a/src/devices/controller.h
+++ b/src/devices/controller.h
@@ -9,6 +9,10 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
+#define CONTROL_VERSION 1
+#define CONTROL_DEIMASK 0x0000
+#define CONTROL_DEOMASK 0x0000
+
 void controller_down(Uxn *u, Uint8 *d, Uint8 mask);
 void controller_up(Uxn *u, Uint8 *d, Uint8 mask);
 void controller_key(Uxn *u, Uint8 *d, Uint8 key);
diff --git a/src/devices/datetime.h b/src/devices/datetime.h
index d007531..c01f70f 100644
--- a/src/devices/datetime.h
+++ b/src/devices/datetime.h
@@ -9,4 +9,8 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
+#define DATETIME_VERSION 1
+#define DATETIME_DEIMASK 0x0000
+#define DATETIME_DEOMASK 0x0000
+
 Uint8 datetime_dei(Uxn *u, Uint8 addr);
diff --git a/src/devices/file.h b/src/devices/file.h
index c839cfc..7bdb6a0 100644
--- a/src/devices/file.h
+++ b/src/devices/file.h
@@ -9,6 +9,10 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
+#define FILE_VERSION 1
+#define FILE_DEIMASK 0x0000
+#define FILE_DEOMASK 0x0000
+
 #define POLYFILEY 2
 #define DEV_FILE0 0xa
 
diff --git a/src/devices/mouse.h b/src/devices/mouse.h
index d63ded8..d422f92 100644
--- a/src/devices/mouse.h
+++ b/src/devices/mouse.h
@@ -9,6 +9,11 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
+
+#define MOUSE_VERSION 1
+#define MOUSE_DEIMASK 0x0000
+#define MOUSE_DEOMASK 0x0000
+
 void mouse_down(Uxn *u, Uint8 *d, Uint8 mask);
 void mouse_up(Uxn *u, Uint8 *d, Uint8 mask);
 void mouse_pos(Uxn *u, Uint8 *d, Uint16 x, Uint16 y);
diff --git a/src/devices/screen.h b/src/devices/screen.h
index 6620909..e392e5e 100644
--- a/src/devices/screen.h
+++ b/src/devices/screen.h
@@ -10,6 +10,10 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
+#define SCREEN_VERSION 1
+#define SCREEN_DEIMASK 0x0000
+#define SCREEN_DEOMASK 0x0000
+
 typedef struct UxnScreen {
 	int width, height, x1, y1, x2, y2;
 	Uint32 palette[4], *pixels;
diff --git a/src/devices/system.c b/src/devices/system.c
index 0c7b4c4..82e09a9 100644
--- a/src/devices/system.c
+++ b/src/devices/system.c
@@ -96,32 +96,6 @@ system_deo(Uxn *u, Uint8 *d, Uint8 port)
 	}
 }
 
-/* Console */
-
-int
-console_input(Uxn *u, char c, int type)
-{
-	Uint8 *d = &u->dev[0x10];
-	d[0x2] = c;
-	d[0x7] = type;
-	return uxn_eval(u, PEEK2(d));
-}
-
-void
-console_deo(Uint8 *d, Uint8 port)
-{
-	switch(port) {
-	case 0x8:
-		fputc(d[port], stdout);
-		fflush(stdout);
-		return;
-	case 0x9:
-		fputc(d[port], stderr);
-		fflush(stderr);
-		return;
-	}
-}
-
 /* Errors */
 
 int
diff --git a/src/devices/system.h b/src/devices/system.h
index 9059736..a4efdce 100644
--- a/src/devices/system.h
+++ b/src/devices/system.h
@@ -9,16 +9,13 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE.
 */
 
-#define RAM_PAGES 0x10
+#define SYSTEM_VERSION 1
+#define SYSTEM_DEIMASK 0x0000
+#define SYSTEM_DEOMASK 0x0000
 
-#define CONSOLE_STD 0x1
-#define CONSOLE_ARG 0x2
-#define CONSOLE_EOA 0x3
-#define CONSOLE_END 0x4
+#define RAM_PAGES 0x10
 
 int system_load(Uxn *u, char *filename);
 void system_inspect(Uxn *u);
 int system_error(char *msg, const char *err);
 void system_deo(Uxn *u, Uint8 *d, Uint8 port);
-int console_input(Uxn *u, char c, int type);
-void console_deo(Uint8 *d, Uint8 port);
diff --git a/src/uxncli.c b/src/uxncli.c
index bbeb519..3250a78 100644
--- a/src/uxncli.c
+++ b/src/uxncli.c
@@ -3,6 +3,7 @@
 
 #include "uxn.h"
 #include "devices/system.h"
+#include "devices/console.h"
 #include "devices/file.h"
 #include "devices/datetime.h"
 
diff --git a/src/uxnemu.c b/src/uxnemu.c
index 1334f2b..7ad5b9b 100644
--- a/src/uxnemu.c
+++ b/src/uxnemu.c
@@ -10,6 +10,7 @@
 #pragma clang diagnostic ignored "-Wtypedef-redefinition"
 #include <SDL.h>
 #include "devices/system.h"
+#include "devices/console.h"
 #include "devices/screen.h"
 #include "devices/audio.h"
 #include "devices/file.h"