--- np2/sound/cs4231c.c	2004/03/29 14:19:25	1.8
+++ np2/sound/cs4231c.c	2011/01/15 18:04:43	1.11
@@ -148,9 +148,9 @@ void cs4231_reset(void) {
 	ZeroMemory(&cs4231, sizeof(cs4231));
 	cs4231.bufsize = CS4231_BUFFERS;
 //	cs4231.proc = cs4231_nodecode;
-	cs4231.port = 0xffff;
 	cs4231.dmach = 0xff;
 	cs4231.dmairq = 0xff;
+	FillMemory(cs4231.port, sizeof(cs4231.port), 0xff);
 }
 
 void cs4231_update(void) {
@@ -169,14 +169,14 @@ static void setdataalign(void) {
 	cs4231.bufdatas &= ~3;
 }
 
-void cs4231_control(UINT index, REG8 dat) {
+void cs4231_control(UINT idx, REG8 dat) {
 
 	UINT8	modify;
 	DMACH	dmach;
 
-	modify = ((BYTE *)&cs4231.reg)[index] ^ dat;
-	((BYTE *)&cs4231.reg)[index] = dat;
-	switch(index) {
+	modify = ((UINT8 *)&cs4231.reg)[idx] ^ dat;
+	((UINT8 *)&cs4231.reg)[idx] = dat;
+	switch(idx) {
 		case CS4231REG_PLAYFMT:
 			if (modify & 0xf0) {
 				setdataalign();