--- nono/vm/pedec.cpp	2026/04/29 17:05:10	1.1.1.5
+++ nono/vm/pedec.cpp	2026/04/29 17:05:14	1.1.1.6
@@ -25,6 +25,7 @@
 
 #include "pedec.h"
 #include "fdc.h"
+#include "fdd.h"
 #include "spc.h"
 
 // グローバル参照用
@@ -81,7 +82,7 @@ PEDECDevice::Write(uint32 offset, uint32
 		intmap_enabled |= (data & 0x02) ? IntmapFDD : 0;
 		intmap_enabled |= (data & 0x01) ? IntmapPRT : 0;
 
-		putlog(1, "割り込みマスク設定 HDD=%d FDC=%d FDD=%d PRT=%d",
+		putlog(1, "Set Interrupt Mask HDD=%d FDC=%d FDD=%d PRT=%d",
 			((intmap_enabled & IntmapHDD) ? 1 : 0),
 			((intmap_enabled & IntmapFDC) ? 1 : 0),
 			((intmap_enabled & IntmapFDD) ? 1 : 0),
@@ -90,7 +91,7 @@ PEDECDevice::Write(uint32 offset, uint32
 
 	 case 1:	// $E9C003 割り込みベクタ
 		vector = data & 0xfc;
-		putlog(1, "割り込みベクタ設定 $%02x", vector);
+		putlog(1, "Set Interrupt Vector $%02x", vector);
 		return 0;
 
 	 default:
@@ -190,6 +191,8 @@ PEDECDevice::InterruptAcknowledge(int lv
 
 	if ((stat & IntmapFDC)) {
 		return vector + 0;
+	} else if ((stat & IntmapFDD)) {
+		return vector + 1;
 	} else {
 		VMPANIC("Unknown interrupt acknowledge");
 	}
@@ -205,5 +208,8 @@ PEDECDevice::GetIntmap(Device *source) c
 	if (__predict_true(source == gFDC)) {
 		return IntmapFDC;
 	}
+	if (dynamic_cast<FDDDevice*>(source)) {
+		return IntmapFDD;
+	}
 	VMPANIC("Unsupported interrupt device");
 }