From 1b716b93c68e67b4341c071fee3cc2c470a23763 Mon Sep 17 00:00:00 2001
From: Yukihiro Matz Matsumoto <matz@ruby-lang.org>
Date: Mon, 10 Dec 2012 16:53:54 +0900
Subject: add comment to clarify nregs=2 in cipush; close #610

---
 src/vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vm.c b/src/vm.c
index 9d64d527b..2b0dda7d5 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -213,7 +213,7 @@ cipush(mrb_state *mrb)
     mrb->ciend = mrb->cibase + size * 2;
   }
   mrb->ci++;
-  mrb->ci->nregs = 2;
+  mrb->ci->nregs = 2;		/* protect method_missing arg and block */
   mrb->ci->eidx = eidx;
   mrb->ci->ridx = ridx;
   mrb->ci->env = 0;
-- 
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