--- nono/hd64180/hd647180io.cpp	2026/04/29 17:05:18	1.1.1.1
+++ nono/hd64180/hd647180io.cpp	2026/04/29 17:05:30	1.1.1.2
@@ -12,10 +12,10 @@
 #include "hd647180.h"
 #include "pio.h"
 #include "scheduler.h"
+#include "ssg.h"
 #include "xpbus.h"
 
 //#define ENABLE_SERIAL_LOG
-//#define ENABLE_SSG_LOG
 
 uint32
 MPU64180Device::ReadIO(uint32 addr)
@@ -210,9 +210,11 @@ MPU64180Device::ReadExternalIO(uint32 ad
 	switch (addr & 0xff) {
 	 case 0x82:					// SSG
 	 case 0x83:					// SSG
-#if !defined(ENABLE_SSG_LOG)
-		data = 0xff;
-#endif
+		if (ssg) {
+			data = ssg->Read1(addr);
+		} else {
+			data = 0xff;	// ?
+		}
 		break;
 
 	 case 0x90:					// INT0 ネゲート
@@ -432,10 +434,10 @@ MPU64180Device::WriteExternalIO(uint32 a
 	switch (addr & 0xff) {
 	 case 0x82:					// SSG
 	 case 0x83:					// SSG
-#if !defined(ENABLE_SSG_LOG)
+		if (ssg) {
+			ssg->Write1(addr, data);
+		}
 		return 0;
-#endif
-		break;
 
 	 case 0x90:					// INT0 ネゲート
 		putlog(1, "%s Negate INT0", IOName(addr).c_str());
@@ -471,7 +473,7 @@ MPU64180Device::WriteTMDRL(int ch, uint3
 			IOName(HD647180::IO_TMDRL(ch)).c_str(), data);
 	} else {
 		t.count = (t.count & 0xff00) | data;
-		putlog(1, "%s <- $%02x (TMDR%d = $%04x)",
+		putlog(1, "%s <- $%02x (TMDR%u = $%04x)",
 			IOName(HD647180::IO_TMDRL(ch)).c_str(), data, ch, t.count);
 	}
 	return 0;
@@ -487,7 +489,7 @@ MPU64180Device::WriteTMDRH(int ch, uint3
 			IOName(HD647180::IO_TMDRH(ch)).c_str(), data);
 	} else {
 		t.count = (data << 8) | (t.count & 0x00ff);
-		putlog(1, "%s <- $%02x (TMDR%d = $%04x)",
+		putlog(1, "%s <- $%02x (TMDR%u = $%04x)",
 			IOName(HD647180::IO_TMDRH(ch)).c_str(), data, ch, t.count);
 	}
 	return 0;
@@ -499,7 +501,7 @@ MPU64180Device::WriteRLDRL(int ch, uint3
 	// 動作中にも変更可能
 	auto& t = timer[ch];
 	t.reload = (t.reload & 0xff00) | data;
-	putlog(1, "%s <- $%02x (RLDR%d = $%04x)",
+	putlog(1, "%s <- $%02x (RLDR%u = $%04x)",
 		IOName(HD647180::IO_RLDRL(ch)).c_str(), data, ch, t.reload);
 	return 0;
 }
@@ -510,7 +512,7 @@ MPU64180Device::WriteRLDRH(int ch, uint3
 	// 動作中にも変更可能
 	auto& t = timer[ch];
 	t.reload = (data << 8) | (t.reload & 0x00ff);
-	putlog(1, "%s <- $%02x (RLDR%d = $%04x)",
+	putlog(1, "%s <- $%02x (RLDR%u = $%04x)",
 		IOName(HD647180::IO_RLDRH(ch)).c_str(), data, ch, t.reload);
 	return 0;
 }
@@ -530,7 +532,7 @@ MPU64180Device::WriteTCR(uint32 data)
 
 	new_tde[1] = (data & 0x02);
 	new_tde[0] = (data & 0x01);
-	msg = string_format("TIE1=%d TIE0=%d TOC=$%d",
+	msg = string_format("TIE1=%u TIE0=%u TOC=$%x",
 		(timer[1].intr_enable ? 1 : 0),
 		(timer[0].intr_enable ? 1 : 0),
 		timer_toc);
@@ -542,7 +544,7 @@ MPU64180Device::WriteTCR(uint32 data)
 			t.count = t.reload;
 			t.running = true;
 			MakeActiveTimer();
-			msg += string_format(" Timer%d=Start", ch);
+			msg += string_format(" Timer%u=Start", ch);
 			EnableTimer();
 		} else if (t.running == true && new_tde[ch] == false) {
 			// カウントダウン停止
@@ -551,7 +553,7 @@ MPU64180Device::WriteTCR(uint32 data)
 			// タイマーイベントの中で running が落ちてたら停止してくれる。
 			t.running = false;
 			MakeActiveTimer();
-			msg += string_format(" Timer%d=Stop", ch);
+			msg += string_format(" Timer%u=Stop", ch);
 		} else {
 			// 変化なし
 		}
@@ -831,6 +833,9 @@ MPU64180Device::PeekExternalIO(uint32 ad
 	switch (addr & 0xff) {
 	 case 0x82:					// SSG
 	 case 0x83:					// SSG
+		if (ssg) {
+			return ssg->Peek1(addr);
+		}
 		break;
 
 	 case 0x90:					// INT0 ネゲート