--- nono/vm/interrupt.cpp	2026/04/29 17:05:17	1.1.1.7
+++ nono/vm/interrupt.cpp	2026/04/29 17:05:20	1.1.1.8
@@ -37,6 +37,7 @@
 #include "mpu680x0.h"
 #include "newsctlr.h"
 #include "nmi.h"
+#include "rtl8019as.h"
 #include "scc.h"
 #include "sio.h"
 #include "spc.h"
@@ -105,6 +106,18 @@ InterruptDevice::NegateINT(Device *sourc
 	}
 }
 
+// 割り込み信号線の状態を取得
+bool
+InterruptDevice::GetINT(const Device *source) const
+{
+	uint32 srcmap;
+
+	srcmap = GetIntmap(source);
+
+	return (intmap & srcmap);
+}
+
+
 //
 // 仮想割り込みコントローラ (m680x0 共通部)
 //
@@ -162,7 +175,7 @@ M680x0Interrupt::ChangeInterrupt()
 X68030Interrupt::X68030Interrupt()
 {
 	monitor.func = ToMonitorCallback(&X68030Interrupt::MonitorUpdate);
-	monitor.SetSize(40, 11);
+	monitor.SetSize(41, 13);
 	monitor.Regist(ID_MONITOR_INTERRUPT);
 }
 
@@ -181,6 +194,10 @@ X68030Interrupt::Init()
 
 	dmac = GetDMACDevice();
 	mfp = GetMFPDevice();
+	// Nereid は拡張ボードなので存在しない可能性がある
+	for (int i = 0; i < 2; i++) {
+		net[i] = gMainApp.FindObject<RTL8019ASDevice>(OBJ_ETHERNET(i));
+	}
 	nmi = GetNMIDevice();
 	pedec = GetPEDECDevice();
 	scc = GetSCCDevice();
@@ -190,7 +207,7 @@ X68030Interrupt::Init()
 
 // デバイスから Intmap 値を引く
 uint32
-X68030Interrupt::GetIntmap(Device *source) const
+X68030Interrupt::GetIntmap(const Device *source) const
 {
 	if (__predict_true(source == mfp)) {
 		return IntmapMFP;
@@ -198,6 +215,12 @@ X68030Interrupt::GetIntmap(Device *sourc
 	if (__predict_true(source == scc)) {
 		return IntmapSCC;
 	}
+	if (__predict_true(source == net[0])) {
+		return IntmapNereid0;
+	}
+	if (__predict_true(source == net[1])) {
+		return IntmapNereid1;
+	}
 	if (__predict_true(source == dmac)) {
 		return IntmapDMAC;
 	}
@@ -224,6 +247,14 @@ X68030Interrupt::InterruptAcknowledge(in
 	 case 5:
 		return scc->InterruptAcknowledge();
 
+	 case 4:
+		for (int i = 0; i < 2; i++) {
+			if (net[i]) {
+				return net[i]->InterruptAcknowledge();
+			}
+		}
+		break;
+
 	 case 3:
 		return dmac->InterruptAcknowledge();
 
@@ -244,11 +275,13 @@ X68030Interrupt::MonitorUpdate(Monitor *
 		const char *name;
 		uint32 map;
 	} table[] = {
-		{ "NMI",	IntmapNMI },
-		{ "MFP",	IntmapMFP },
-		{ "SCC",	IntmapSCC },
-		{ "DMAC",	IntmapDMAC },
-		{ "PEDEC",	IntmapPEDEC },
+		{ "NMI",		IntmapNMI },
+		{ "MFP",		IntmapMFP },
+		{ "SCC",		IntmapSCC },
+		{ "Nereid0",	IntmapNereid0 },
+		{ "Nereid1",	IntmapNereid1 },
+		{ "DMAC",		IntmapDMAC },
+		{ "PEDEC",		IntmapPEDEC },
 	};
 
 	// CPU の割り込み可否は本当は関係ないけど、便宜的に一緒に表示したい
@@ -259,24 +292,30 @@ X68030Interrupt::MonitorUpdate(Monitor *
 
 	// 0         1         2         3         4
 	// 01234567890123456789012345678901234567890
-	// Lv Device IM=7                     Count
-	// 1  PEDEC      01234567890123456789012345
-	//     SPC   Mask
+	// Lv Device  IM=7                     Count
+	// 1  Nereid0     01234567890123456789012345
+	//     SPC    Mask
 
 	y = 0;
-	screen.Print(0, y, "Lv Device IM=%d", intr_mask);
-	screen.Puts(35, y, "Count");
+	screen.Print(0, y, "Lv Device  IM=%d", intr_mask);
+	screen.Puts(36, y, "Count");
 	y++;
 	for (int i = 0; i < countof(table); i++) {
 		uint32 map = table[i].map;
 		int clz = __builtin_clz(map);
 		int lv = (31 - clz) / 4;
 		screen.Print(0, y, "%d", lv);
-		screen.Print(3, y, TA::OnOff(intmap & map), "%s", table[i].name);
+		if ((map == IntmapNereid0 && net[0] == NULL) ||
+		    (map == IntmapNereid1 && net[1] == NULL))
+		{
+			screen.Puts(3, y, TA::Disable, table[i].name);
+		} else {
+			screen.Puts(3, y, TA::OnOff(intmap & map), table[i].name);
+		}
 		if (lv <= intr_mask) {
-			screen.Puts(10, y, "Mask");
+			screen.Puts(11, y, "Mask");
 		}
-		screen.Print(14, y, "%26s", format_number(counter[clz]).c_str());
+		screen.Print(15, y, "%26s", format_number(counter[clz]).c_str());
 		y++;
 	}
 
@@ -321,7 +360,7 @@ LunaInterrupt::Init()
 
 // デバイスから Intmap 値を引く
 uint32
-LunaInterrupt::GetIntmap(Device *source) const
+LunaInterrupt::GetIntmap(const Device *source) const
 {
 	if (__predict_true(source == sio)) {
 		return IntmapSIO;
@@ -436,7 +475,7 @@ NewsInterrupt::Init()
 
 // デバイスから Intmap 値を引く
 uint32
-NewsInterrupt::GetIntmap(Device *source) const
+NewsInterrupt::GetIntmap(const Device *source) const
 {
 	if (__predict_true(source == newsctlr)) {
 		return IntmapTimer;