diff --git a/src/devices/system.c b/src/devices/system.c
index 89a2f96..e7367bd 100644
--- a/src/devices/system.c
+++ b/src/devices/system.c
@@ -101,43 +101,41 @@ system_dei(Uint8 addr)
 }
 
 void
-system_deo(Uxn *u, Uint8 *d, Uint8 port)
+system_deo(Uint8 *d, Uint8 port)
 {
-	Uint8 *ram;
 	Uint16 addr;
 	switch(port) {
 	case 0x3:
-		ram = u->ram;
 		addr = PEEK2(d + 2);
-		if(ram[addr] == 0x0) {
-			Uint8 value = ram[addr + 7];
-			Uint16 i, length = PEEK2(ram + addr + 1);
-			Uint16 dst_page = PEEK2(ram + addr + 3), dst_addr = PEEK2(ram + addr + 5);
+		if(uxn.ram[addr] == 0x0) {
+			Uint8 value = uxn.ram[addr + 7];
+			Uint16 i, length = PEEK2(uxn.ram + addr + 1);
+			Uint16 dst_page = PEEK2(uxn.ram + addr + 3), dst_addr = PEEK2(uxn.ram + addr + 5);
 			int dst = (dst_page % RAM_PAGES) * 0x10000;
 			for(i = 0; i < length; i++)
-				ram[dst + (Uint16)(dst_addr + i)] = value;
-		} else if(ram[addr] == 0x1) {
-			Uint16 i, length = PEEK2(ram + addr + 1);
-			Uint16 a_page = PEEK2(ram + addr + 3), a_addr = PEEK2(ram + addr + 5);
-			Uint16 b_page = PEEK2(ram + addr + 7), b_addr = PEEK2(ram + addr + 9);
+				uxn.ram[dst + (Uint16)(dst_addr + i)] = value;
+		} else if(uxn.ram[addr] == 0x1) {
+			Uint16 i, length = PEEK2(uxn.ram + addr + 1);
+			Uint16 a_page = PEEK2(uxn.ram + addr + 3), a_addr = PEEK2(uxn.ram + addr + 5);
+			Uint16 b_page = PEEK2(uxn.ram + addr + 7), b_addr = PEEK2(uxn.ram + addr + 9);
 			int src = (a_page % RAM_PAGES) * 0x10000, dst = (b_page % RAM_PAGES) * 0x10000;
 			for(i = 0; i < length; i++)
-				ram[dst + (Uint16)(b_addr + i)] = ram[src + (Uint16)(a_addr + i)];
-		} else if(ram[addr] == 0x2) {
-			Uint16 i, length = PEEK2(ram + addr + 1);
-			Uint16 a_page = PEEK2(ram + addr + 3), a_addr = PEEK2(ram + addr + 5);
-			Uint16 b_page = PEEK2(ram + addr + 7), b_addr = PEEK2(ram + addr + 9);
+				uxn.ram[dst + (Uint16)(b_addr + i)] = uxn.ram[src + (Uint16)(a_addr + i)];
+		} else if(uxn.ram[addr] == 0x2) {
+			Uint16 i, length = PEEK2(uxn.ram + addr + 1);
+			Uint16 a_page = PEEK2(uxn.ram + addr + 3), a_addr = PEEK2(uxn.ram + addr + 5);
+			Uint16 b_page = PEEK2(uxn.ram + addr + 7), b_addr = PEEK2(uxn.ram + addr + 9);
 			int src = (a_page % RAM_PAGES) * 0x10000, dst = (b_page % RAM_PAGES) * 0x10000;
 			for(i = length - 1; i != 0xffff; i--)
-				ram[dst + (Uint16)(b_addr + i)] = ram[src + (Uint16)(a_addr + i)];
+				uxn.ram[dst + (Uint16)(b_addr + i)] = uxn.ram[src + (Uint16)(a_addr + i)];
 		} else
-			fprintf(stderr, "Unknown Expansion Command 0x%02x\n", ram[addr]);
+			fprintf(stderr, "Unknown Expansion Command 0x%02x\n", uxn.ram[addr]);
 		break;
 	case 0x4:
-		u->wst.ptr = d[4];
+		uxn.wst.ptr = d[4];
 		break;
 	case 0x5:
-		u->rst.ptr = d[5];
+		uxn.rst.ptr = d[5];
 		break;
 	case 0xe:
 		system_inspect();
diff --git a/src/devices/system.h b/src/devices/system.h
index 39643ba..25449bb 100644
--- a/src/devices/system.h
+++ b/src/devices/system.h
@@ -18,6 +18,6 @@ int system_error(char *msg, const char *err);
 int system_boot(Uint8 *ram, char *rom);
 
 Uint8 system_dei(Uint8 addr);
-void system_deo(Uxn *u, Uint8 *d, Uint8 port);
+void system_deo(Uint8 *d, Uint8 port);
 
 extern char *boot_rom;
\ No newline at end of file
diff --git a/src/uxn11.c b/src/uxn11.c
index df17a22..11e2db1 100644
--- a/src/uxn11.c
+++ b/src/uxn11.c
@@ -63,7 +63,7 @@ emu_deo(Uint8 addr, Uint8 value)
 	uxn.dev[addr] = value;
 	switch(d) {
 	case 0x00:
-		system_deo(&uxn, &uxn.dev[d], p);
+		system_deo(&uxn.dev[d], p);
 		if(p > 0x7 && p < 0xe)
 			screen_palette(&uxn.dev[0x8]);
 		break;
diff --git a/src/uxncli.c b/src/uxncli.c
index 2c07965..0808490 100644
--- a/src/uxncli.c
+++ b/src/uxncli.c
@@ -37,7 +37,7 @@ emu_deo(Uint8 addr, Uint8 value)
 	Uint8 p = addr & 0x0f, d = addr & 0xf0;
 	uxn.dev[addr] = value;
 	switch(d) {
-	case 0x00: system_deo(&uxn, &uxn.dev[d], p); break;
+	case 0x00: system_deo(&uxn.dev[d], p); break;
 	case 0x10: console_deo(&uxn, &uxn.dev[d], p); break;
 	case 0xa0: file_deo(0, uxn.ram, &uxn.dev[d], p); break;
 	case 0xb0: file_deo(1, uxn.ram, &uxn.dev[d], p); break;