diff --git a/src/devices/file.c b/src/devices/file.c
index cddf629..fb972eb 100644
--- a/src/devices/file.c
+++ b/src/devices/file.c
@@ -150,7 +150,7 @@ file_deo(Device *d, Uint8 port)
 	case 0x5:
 		DEVPEEK16(a, 0x4);
 		DEVPEEK16(b, 0xa);
-		res = file_stat(&bank0[a], b);
+		res = file_stat(&d->u->ram[a], b);
 		DEVPOKE16(0x2, res);
 		break;
 	case 0x6:
@@ -159,19 +159,19 @@ file_deo(Device *d, Uint8 port)
 		break;
 	case 0x9:
 		DEVPEEK16(a, 0x8);
-		res = file_init(&bank0[a]);
+		res = file_init(&d->u->ram[a]);
 		DEVPOKE16(0x2, res);
 		break;
 	case 0xd:
 		DEVPEEK16(a, 0xc);
 		DEVPEEK16(b, 0xa);
-		res = file_read(&bank0[a], b);
+		res = file_read(&d->u->ram[a], b);
 		DEVPOKE16(0x2, res);
 		break;
 	case 0xf:
 		DEVPEEK16(a, 0xe);
 		DEVPEEK16(b, 0xa);
-		res = file_write(&bank0[a], b, d->dat[0x7]);
+		res = file_write(&d->u->ram[a], b, d->dat[0x7]);
 		DEVPOKE16(0x2, res);
 		break;
 	}
diff --git a/src/devices/file.h b/src/devices/file.h
index b8fa33f..26c4ff1 100644
--- a/src/devices/file.h
+++ b/src/devices/file.h
@@ -11,5 +11,3 @@ WITH REGARD TO THIS SOFTWARE.
 */
 
 void file_deo(Device *d, Uint8 port);
-
-extern Uint8 *bank0;
\ No newline at end of file
diff --git a/src/uxncli.c b/src/uxncli.c
index eb0133b..12a7f65 100644
--- a/src/uxncli.c
+++ b/src/uxncli.c
@@ -2,9 +2,6 @@
 #include <stdlib.h>
 
 #include "uxn.h"
-
-Uint8 *bank0;
-
 #include "devices/system.h"
 #include "devices/file.h"
 #include "devices/datetime.h"
@@ -118,8 +115,7 @@ load(Uxn *u, char *filepath)
 static int
 start(Uxn *u)
 {
-	bank0 = (Uint8 *)calloc(0x10000, sizeof(Uint8));
-	if(!uxn_boot(u, bank0))
+	if(!uxn_boot(u, (Uint8 *)calloc(0x10000, sizeof(Uint8))))
 		return error("Boot", "Failed");
 	/* system   */ uxn_port(u, 0x0, system_dei, system_deo);
 	/* console  */ uxn_port(u, 0x1, nil_dei, console_deo);
diff --git a/src/uxnemu.c b/src/uxnemu.c
index 71e9b97..dbb33ec 100644
--- a/src/uxnemu.c
+++ b/src/uxnemu.c
@@ -3,8 +3,6 @@
 
 #include "uxn.h"
 
-Uint8 *bank0;
-
 #pragma GCC diagnostic push
 #pragma clang diagnostic push
 #pragma GCC diagnostic ignored "-Wpedantic"
@@ -262,9 +260,7 @@ load(Uxn *u, char *rom)
 static int
 start(Uxn *u, char *rom)
 {
-	bank0 = (Uint8 *)calloc(0x10000, sizeof(Uint8));
-
-	if(!uxn_boot(u, bank0))
+	if(!uxn_boot(u, (Uint8 *)calloc(0x10000, sizeof(Uint8))))
 		return error("Boot", "Failed to start uxn.");
 	if(!load(u, rom))
 		return error("Boot", "Failed to load rom.");