--- nono/hd64180/hd64180ops.cpp	2026/04/29 17:05:18	1.1
+++ nono/hd64180/hd64180ops.cpp	2026/04/29 17:05:21	1.1.1.2
@@ -310,8 +310,7 @@ OP_DEF(ld_nnin_hl)
 // 00100111: DAA
 OP_DEF(daa)
 {
-	// XXX 未実装
-	putlog(0, "DAA (NOT IMPLEMENTED)");
+	reg.a = ACC.daa_8(reg.a);
 	CYCLE(4);
 }