--- nono/hd64180/hd64180acc.cpp	2026/04/29 17:05:34	1.1.1.3
+++ nono/hd64180/hd64180acc.cpp	2026/04/29 17:05:43	1.1.1.4
@@ -363,8 +363,6 @@ hd64180acc::rrc_8(uint32 src)
 uint32
 hd64180acc::daa_8(uint32 src)
 {
-	uint32 ah;
-	uint32 al;
 	uint32 b;
 	uint32 res;
 
@@ -376,8 +374,7 @@ hd64180acc::daa_8(uint32 src)
 		bool resH;			// 出力用。H は内部演算のみの和
 
 		// 下位桁
-		ah = src >> 4;
-		al = src & 0xf;
+		uint32 al = src & 0xf;
 		if (al >= 0x0a || IsH()) {
 			b = 0x06;
 		} else {
@@ -388,8 +385,7 @@ hd64180acc::daa_8(uint32 src)
 		resH  = IsH();
 
 		// 上位桁
-		ah = src >> 4;
-		al = src & 0xf;
+		uint32 ah = src >> 4;
 		if (ah >= 0x0a || tmpC) {
 			b = 0x60;