1 files changed, 3 insertions, 1 deletions
diff --git a/all.h b/all.h
index bb6f096..3479d27 100644
--- a/all.h
+++ b/all.h
@@ -213,7 +213,9 @@ enum {
 struct Op {
 	char *name;
 	short argcls[2][4];
-	int canfold;
+	uint canfold:1;
+	uint hasid:1;
+	uint idval:1; /* identity value 0/1 */
 };
 
 struct Ins {