From: Guillermo J. Rozas <edu/mit/csail/zurich/gjr>
Date: Mon, 8 Nov 1993 22:41:40 +0000 (+0000)
Subject: Fix bug in guaranteed-long/upper-limit and lower-limit.
X-Git-Tag: 20090517-FFI~7577
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=b27aea7e391af7ece8d31e0489d0abc3a4dfc8d3;p=mit-scheme.git

Fix bug in guaranteed-long/upper-limit and lower-limit.
---

diff --git a/v7/src/compiler/machines/C/machin.scm b/v7/src/compiler/machines/C/machin.scm
index e07d6340b..d617a5e5a 100644
--- a/v7/src/compiler/machines/C/machin.scm
+++ b/v7/src/compiler/machines/C/machin.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: machin.scm,v 1.5 1993/10/28 02:55:01 gjr Exp $
+$Id: machin.scm,v 1.6 1993/11/08 22:41:40 gjr Exp $
 
 Copyright (c) 1992-1993 Massachusetts Institute of Technology
 
@@ -64,7 +64,7 @@ MIT in each case. |#
 (define-integrable max-tag-width 8)
 
 (define-integrable guaranteed-long/upper-limit
-  (expt 2 min-long-width))
+  (expt 2 (-1+ min-long-width)))
 (define-integrable guaranteed-long/lower-limit
   (- (-1+ guaranteed-long/upper-limit)))