--- nono/vm/crtc.cpp	2026/04/29 17:04:29	1.1.1.2
+++ nono/vm/crtc.cpp	2026/04/29 17:04:31	1.1.1.3
@@ -34,7 +34,7 @@ CRTCDevice::ResetHard()
 	// すぐに垂直帰線期間を開始する
 	vdisp_event.time = 0;
 	vdisp_event.code = 1;
-	gScheduler->AddEvent(&vdisp_event);
+	vdisp_event.Start();
 }
 
 uint64
@@ -168,7 +168,7 @@ CRTCDevice::Peek8(uint32 addr)
 	uint32 an2 = addr - devaddr;
 
 	switch (an2) {
-	 case CRTC::R00 ... (CRTC::R23 * 2):
+	 case CRTC::R00 ... (CRTC::R23 * 2 + 1):
 		if ((an2 & 1) == 0) {
 			return crtc.r[an2 / 2] >> 8;
 		} else {
@@ -208,5 +208,5 @@ CRTCDevice::VDispCallback(int arg)
 		vdisp_event.time = 1778_usec;
 	}
 	vdisp_event.code = 1 - arg;
-	gScheduler->AddEvent(&vdisp_event);
+	vdisp_event.Start();
 }