diff --git a/src/emu/cpu/m68000/m68k_in.c b/src/emu/cpu/m68000/m68k_in.c
index b50505eb195..295f3519b94 100644
--- a/src/emu/cpu/m68000/m68k_in.c
+++ b/src/emu/cpu/m68000/m68k_in.c
@@ -1262,8 +1262,9 @@ M68KMAKE_OP(adda, 32, ., a)
 M68KMAKE_OP(adda, 32, ., .)
 {
 	uint* r_dst = &AX;
+	uint src = M68KMAKE_GET_OPER_AY_32;
 
-	*r_dst = MASK_OUT_ABOVE_32(*r_dst + M68KMAKE_GET_OPER_AY_32);
+	*r_dst = MASK_OUT_ABOVE_32(*r_dst + src);
 }
 
 
@@ -9785,8 +9786,9 @@ M68KMAKE_OP(suba, 32, ., a)
 M68KMAKE_OP(suba, 32, ., .)
 {
 	uint* r_dst = &AX;
+	uint src = M68KMAKE_GET_OPER_AY_32;
 
-	*r_dst = MASK_OUT_ABOVE_32(*r_dst - M68KMAKE_GET_OPER_AY_32);
+	*r_dst = MASK_OUT_ABOVE_32(*r_dst - src);
 }