--- nono/vm/goldfish_rtc.cpp	2026/04/29 17:05:29	1.1.1.2
+++ nono/vm/goldfish_rtc.cpp	2026/04/29 17:06:00	1.1.1.5
@@ -20,7 +20,9 @@
 // 同じものを使うらしい。
 
 #include "goldfish_rtc.h"
-#include "mpu.h"
+#include "event.h"
+#include "mainbus.h"
+#include "mytime.h"
 #include "textscreen.h"
 
 //
@@ -38,22 +40,11 @@ GFRTCDevice::~GFRTCDevice()
 {
 }
 
-// 初期化
-bool
-GFRTCDevice::Init()
-{
-	if (inherited::Init() == false) {
-		return false;
-	}
-
-	return true;
-}
-
 // リセット
 void
 GFRTCDevice::ResetHard(bool poweron)
 {
-	time_nsec = 0;
+	time_nsec.q = 0;
 }
 
 busdata
@@ -63,19 +54,18 @@ GFRTCDevice::ReadPort(uint32 offset)
 
 	switch (offset) {
 	 case GFRTC::TIME_LOW:
-		time_nsec = (uint64)MkTime() * 1000'000'000U;
-		data = (uint32)time_nsec;
+		time_nsec.q = sec_to_nsec(MkTime());
+		data = time_nsec.l;
 		if (__predict_false(loglevel >= 1)) {
 			if (loglevel >= 3) {
 				putlogn("TIME_LOW  -> $%08x", data.Data());
 			} else {
-				putlogn("TIME -> $%08x'%08x",
-					(uint32)(time_nsec >> 32), data.Data());
+				putlogn("TIME -> $%08x'%08x", time_nsec.h, data.Data());
 			}
 
 			if (loglevel >= 2) {
 				struct tm tm, tr;
-				time_t t = (time_t)(time_nsec / 1_sec);
+				time_t t = (time_t)nsec_to_sec(time_nsec.q);
 				gmtime_r(&t, &tm);
 				putlogn("TIME / 1e9:   %4u/%02u/%02u %02u:%02u:%02u",
 					tm.tm_year + 1900,
@@ -85,10 +75,9 @@ GFRTCDevice::ReadPort(uint32 offset)
 					tm.tm_min,
 					tm.tm_sec);
 
-				struct timeval tv;
-				gettimeofday(&tv, NULL);
-				gmtime_r(&tv.tv_sec, &tr);
-				putlogn("gettimeofday: %4u/%02u/%02u %02u:%02u:%02u",
+				time_t u = (time_t)get_hosttime_sec();
+				gmtime_r(&u, &tr);
+				putlogn("system_clock: %4u/%02u/%02u %02u:%02u:%02u",
 					tr.tm_year + 1900,
 					tr.tm_mon + 1,
 					tr.tm_mday,
@@ -100,7 +89,7 @@ GFRTCDevice::ReadPort(uint32 offset)
 		break;
 
 	 case GFRTC::TIME_HIGH:
-		data = (uint32)(time_nsec >> 32);
+		data = time_nsec.h;
 		putlog(3, "TIME_HIGH -> $%08x", data.Data());
 		break;
 
@@ -115,7 +104,7 @@ GFRTCDevice::ReadPort(uint32 offset)
 		break;
 
 	 default:
-		putlog(1, "Read unknown $%08x", mpu->GetPaddr());
+		putlog(1, "Read unknown $%08x", GetMainbusDevice()->GetPaddr());
 		data.SetBusErr();
 		break;
 	}
@@ -132,18 +121,17 @@ GFRTCDevice::WritePort(uint32 offset, ui
 	switch (offset) {
 	 case GFRTC::TIME_LOW:
 	 {
-		time_nsec |= data;
+		time_nsec.l = data;
 
 		if (__predict_false(loglevel >= 1)) {
 			if (loglevel >= 2) {
-				putlogn("TIME_LOW  <- $%08x", (uint32)time_nsec);
+				putlogn("TIME_LOW  <- $%08x", time_nsec.l);
 			} else {
-				putlogn("TIME <- $%08x'%08x",
-					(uint32)(time_nsec >> 32), (uint32)time_nsec);
+				putlogn("TIME <- $%08x'%08x", time_nsec.h, time_nsec.l);
 			}
 		}
 
-		time_t t = time_nsec / 1000'000'000U;
+		time_t t = nsec_to_sec(time_nsec.q);
 		struct tm tm;
 		gmtime_r(&t, &tm);
 		SetYear(tm.tm_year + 1900);
@@ -157,7 +145,7 @@ GFRTCDevice::WritePort(uint32 offset, ui
 
 	 case GFRTC::TIME_HIGH:
 		putlog(2, "TIME_HIGH <- $%08x", data);
-		time_nsec = (uint64)data << 32;
+		time_nsec.h = data;
 		break;
 
 	 case GFRTC::ALARM_LOW:
@@ -181,7 +169,8 @@ GFRTCDevice::WritePort(uint32 offset, ui
 		break;
 
 	 default:
-		putlog(1, "Write unknown $%08x <- $%08x", mpu->GetPaddr(), data);
+		putlog(1, "Write unknown $%08x <- $%08x",
+			GetMainbusDevice()->GetPaddr(), data);
 		r.SetBusErr();
 		break;
 	}
@@ -196,12 +185,12 @@ GFRTCDevice::PeekPort(uint32 offset)
 	switch (offset) {
 	 case GFRTC::TIME_LOW:
 	 {
-		uint64 now = MkTime() * 1000'000'000U;
+		uint64 now = sec_to_nsec(MkTime());
 		return now & 0xffffffffU;
 	 }
 	 case GFRTC::TIME_HIGH:
 	 {
-		uint64 now = MkTime() * 1000'000'000U;
+		uint64 now = sec_to_nsec(MkTime());
 		return now >> 32;
 	 }
 	 case GFRTC::INTR_STATUS:
@@ -214,7 +203,7 @@ GFRTCDevice::PeekPort(uint32 offset)
 
 // モニタの下請け。(GFTimer から呼ばれる)
 int
-GFRTCDevice::MonitorUpdateRTC(TextScreen& screen, int y) const
+GFRTCDevice::MonitorScreenRTC(TextScreen& screen, int y) const
 {
 	screen.Puts(0, y++, "<RTC>");
 	screen.Print(0, y++, "%04u/%02u/%02u(%s) %02u:%02u:%02u",