--- np2/io/pit.c	2005/05/13 14:49:24	1.24
+++ np2/io/pit.c	2011/01/15 18:04:43	1.27
@@ -126,12 +126,18 @@ void rs232ctimer(NEVENTITEM item) {
 
 	if (item->flag & NEVENT_SETEVENT) {
 		pitch = pit.ch + 2;
+		if (pitch->flag & PIT_FLAG_I) {
+			pitch->flag &= ~PIT_FLAG_I;
+			rs232c_callback();
+		}
 		if ((pitch->ctrl & 0x0c) == 0x04) {
 			// レートジェネレータ
 			setrs232cevent(pitch->value, NEVENT_RELATIVE);
 		}
+		else {
+			setrs232cevent(0, NEVENT_RELATIVE);
+		}
 	}
-	rs232c_callback();
 }
 
 
@@ -139,11 +145,11 @@ void rs232ctimer(NEVENTITEM item) {
 
 static UINT getcount(const _PITCH *pitch) {
 
-	SINT32	clock;
+	SINT32	clk;
 
 	switch(pitch->ch) {
 		case 0:
-			clock = nevent_getremain(NEVENT_ITIMER);
+			clk = nevent_getremain(NEVENT_ITIMER);
 			break;
 
 		case 1:
@@ -158,24 +164,24 @@ static UINT getcount(const _PITCH *pitch
 					return(pitch->value & (~1));
 #endif
 			}
-			clock = nevent_getremain(NEVENT_BEEP);
+			clk = nevent_getremain(NEVENT_BEEP);
 #if defined(BEEPCOUNTEREX)
-			if (clock >= 0) {
-				clock /= pccore.multiple;
+			if (clk >= 0) {
+				clk /= pccore.multiple;
 				if (pitch->value > 2) {
-					clock %= pitch->value;
+					clk %= pitch->value;
 				}
 				else {
-					clock = LOW16(clock);
+					clk = LOW16(clk);
 				}
-				return(clock);
+				return(clk);
 			}
 #else
 			break;
 #endif
 
 		case 2:
-			clock = nevent_getremain(NEVENT_RS232C);
+			clk = nevent_getremain(NEVENT_RS232C);
 			break;
 
 #if !defined(DISABLE_SOUND)
@@ -184,11 +190,11 @@ static UINT getcount(const _PITCH *pitch
 #endif
 
 		default:
-			clock = 0;
+			clk = 0;
 			break;
 	}
-	if (clock > 0) {
-		return(clock / pccore.multiple);
+	if (clk > 0) {
+		return(clk / pccore.multiple);
 	}
 	return(0);
 }
@@ -353,6 +359,7 @@ static void IOOUTCALL pit_o75(UINT port,
 	if (pit_setcount(pitch, dat)) {
 		return;
 	}
+	pitch->flag |= PIT_FLAG_I;
 	rs232c_open();
 	setrs232cevent(pitch->value, NEVENT_ABSOLUTE);
 	(void)port;
@@ -405,7 +412,7 @@ static const IOOUT pito71[4] = {
 static const IOINP piti71[4] = {
 					pit_i71,	pit_i71,	pit_i71,	NULL};
 
-void itimer_reset(void) {
+void itimer_reset(const NP2CFG *pConfig) {
 
 	UINT16	beepcnt;
 
@@ -428,7 +435,9 @@ void itimer_reset(void) {
 	setsystimerevent(0, NEVENT_ABSOLUTE);
 	beep_lheventset(1);												// ver0.79
 	beep_hzset(beepcnt);
-	setrs232cevent(0, NEVENT_ABSOLUTE);
+//	setrs232cevent(0, NEVENT_ABSOLUTE);
+
+	(void)pConfig;
 }
 
 void itimer_bind(void) {