--- xmil/io/ctc.c	2004/08/13 01:35:59	1.8
+++ xmil/io/ctc.c	2004/08/13 03:47:23	1.10
@@ -173,25 +173,26 @@ BRESULT ieitem_ctc(UINT id) {
 	if (intr) {
 		for (i=0, bit=1; i<4; i++, bit<<=1) {
 			if (intr & bit) {
+				if (!(ch->cmd[i] & 0x80)) {
+					intr ^= bit;
+				}
 #if 0			// アークスのタイミング→あとで修正
-				if (0)
+				else if (0)
 #elif 1
-				if ((ch->countmax[i] - ch->count[i]) >= 256)
+				else if (((ch->cmd[i] & 0x10) == 0) &&
+						((ch->countmax[i] - ch->count[i]) >= 256))
 #elif 0
-				if (((ch->count[i] * 17) >> 4) < ch->countmax[i])
+				else if (((ch->count[i] * 17) >> 4) < ch->countmax[i])
 #else
-				if (ch->count[i] != ch->countmax[i])
+				else if (ch->count[i] != ch->countmax[i])
 #endif
 				{
 					intr ^= bit;
 				}
-				else if (!(ch->cmd[i] & 0x80)) {
-					intr ^= bit;
-				}
 				else if (!r) {
 					r = TRUE;
 					intr ^= bit;
-//					TRACEOUT(("ctc int %d", i));
+//					TRACEOUT(("ctc int %d %d", ch->num, i));
 					Z80_INTERRUPT((REG8)(ch->vector + (i << 1)));
 				}
 			}
@@ -283,7 +284,7 @@ void IOOUTCALL ctc_o(UINT port, REG8 val
 
 	CTCCH	*ch;
 
-//	TRACEOUT(("ctc - %.4x %.2x [%.4x]", port, value, Z80_PC));
+	TRACEOUT(("ctc - %.4x %.2x [%.4x]", port, value, Z80_PC));
 	ch = getctcch(port);
 	if (ch != NULL) {
 		ctcch_o(ch, port, value);