diff --git a/src/boards/218.c b/src/boards/218.c
index ed906f0..84892d3 100644
--- a/src/boards/218.c
+++ b/src/boards/218.c
@@ -21,9 +21,6 @@
 #include "mapinc.h"
 #include "../ines.h"
 
-static uint8 mirror;
-static uint8 mask;
-
 static void M218Power(void) {
 	setchr8(0);
 	setprg32(0x8000, 0);
diff --git a/src/boards/534.c b/src/boards/534.c
index 3c5d247..5f49909 100644
--- a/src/boards/534.c
+++ b/src/boards/534.c
@@ -78,8 +78,6 @@ static void M534Reset(void) {
     FCEU_printf("dipswitch = %d\n", EXPREGS[4]);
     MMC3RegReset();
 }
-static void M534Close(void) {
-}
 
 void Mapper534_Init(CartInfo *info) {
 	GenMMC3_Init(info, 512, 512, 0, 0);
@@ -87,6 +85,5 @@ void Mapper534_Init(CartInfo *info) {
 	cwrap = M534CW;
 	info->Power = M534Power;
 	info->Reset = M534Reset;
-	info->Close = M534Close;
 	AddExState(EXPREGS, 5, 0, "EXPR");
 }
diff --git a/src/boards/sachen.c b/src/boards/sachen.c
index fdfd7aa..06750a4 100644
--- a/src/boards/sachen.c
+++ b/src/boards/sachen.c
@@ -36,105 +36,6 @@ static void S74LS374MSync(uint8 mirr) {
 	}
 }
 
-/* old mapper 150 and 243 */
-/* static void S74LS374NSynco(void) {
-	setprg32(0x8000, latch[0]);
-	setchr8(latch[1] | latch[3] | latch[4]);
-	S74LS374MSync(latch[2]);
-}
-
-static DECLFW(S74LS374NWrite) {
-	A &= 0x4101;
-	if (A == 0x4100)
-		cmd = V & 7;
-	else {
-		switch (cmd) {
-		case 2: latch[0] = V & 1; latch[3] = (V & 1) << 3; break;
-		case 4: latch[4] = (V & 1) << 2; break;
-		case 5: latch[0] = V & 7; break;
-		case 6: latch[1] = V & 3; break;
-		case 7: latch[2] = V >> 1; break;
-		}
-		S74LS374NSynco();
-	}
-}
-
-static DECLFR(S74LS374NRead) {
-	uint8 ret;
-	if ((A & 0x4100) == 0x4100)
-//		ret=(X.DB&0xC0)|((~cmd)&0x3F);
-		ret = ((~cmd) & 0x3F) ^ dip;
-	else
-		ret = X.DB;
-	return ret;
-}
-
-static void S74LS374NPower(void) {
-	dip = 0;
-	latch[0] = latch[1] = latch[2] = latch[3] = latch[4] = 0;
-	S74LS374NSynco();
-	SetReadHandler(0x8000, 0xFFFF, CartBR);
-	SetWriteHandler(0x4100, 0x7FFF, S74LS374NWrite);
-	SetReadHandler(0x4100, 0x5fff, S74LS374NRead);
-}
-
-static void S74LS374NReset(void) {
-	dip ^= 1;
-	latch[0] = latch[1] = latch[2] = latch[3] = latch[4] = 0;
-	S74LS374NSynco();
-}
-
-static void S74LS374NRestore(int version) {
-	S74LS374NSynco();
-}
-
-void S74LS374N_Init(CartInfo *info) {
-	info->Power = S74LS374NPower;
-	info->Reset = S74LS374NReset;
-	GameStateRestore = S74LS374NRestore;
-	AddExState(latch, 5, 0, "LATC");
-	AddExState(&cmd, 1, 0, "CMD");
-	AddExState(&dip, 1, 0, "DIP");
-}
-
-static void S74LS374NASynco(void) {
-	setprg32(0x8000, latch[0]);
-	setchr8(latch[1]);
-	S74LS374MSync(latch[2]);
-}
-
-static DECLFW(S74LS374NAWrite) {
-	A &= 0x4101;
-	if (A == 0x4100)
-		cmd = V & 7;
-	else {
-		switch (cmd) {
-		case 0: latch[0] = 0; latch[1] = 3; break;
-		case 2: latch[3] = (V & 1) << 3; break;
-		case 4: latch[1] = (latch[1] & 6) | (V & 3); break;
-		case 5: latch[0] = V & 1; break;
-		case 6: latch[1] = (latch[1] & 1) | latch[3] | ((V & 3) << 1); break;
-		case 7: latch[2] = V & 1; break;
-		}
-		S74LS374NASynco();
-	}
-}
-
-static void S74LS374NAPower(void) {
-	latch[0] = latch[2] = latch[3] = latch[4] = 0;
-	latch[1] = 3;
-	S74LS374NASynco();
-	SetReadHandler(0x8000, 0xFFFF, CartBR);
-	SetWriteHandler(0x4100, 0x7FFF, S74LS374NAWrite);
-}
-
-void S74LS374NA_Init(CartInfo *info) {
-	info->Power = S74LS374NAPower;
-	GameStateRestore = S74LS374NRestore;
-	AddExState(latch, 5, 0, "LATC");
-	AddExState(&cmd, 1, 0, "CMD");
-}*/
-
 static int type;
 static void S8259Synco(void) {
 	int x;