From: Guillermo J. Rozas <edu/mit/csail/zurich/gjr>
Date: Wed, 24 May 1989 05:09:32 +0000 (+0000)
Subject: Fix bug in disassembler/write-compiled-code-block by which the
X-Git-Tag: 20090517-FFI~12048
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=5fc04c66b0dbfa46090293ae2bbee1154ee99082;p=mit-scheme.git

Fix bug in disassembler/write-compiled-code-block by which the
dbg-info/labels were being extracted even if there was no info structure.
---

diff --git a/v7/src/compiler/machines/vax/dassm1.scm b/v7/src/compiler/machines/vax/dassm1.scm
index 8038a7b58..b4d9f7c26 100644
--- a/v7/src/compiler/machines/vax/dassm1.scm
+++ b/v7/src/compiler/machines/vax/dassm1.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/compiler/machines/vax/dassm1.scm,v 4.2 1989/05/17 20:28:09 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/compiler/machines/vax/dassm1.scm,v 4.3 1989/05/24 05:09:32 jinx Exp $
 $MC68020-Header: dassm1.scm,v 4.10 88/12/30 07:05:04 GMT cph Exp $
 
 Copyright (c) 1987, 1989 Massachusetts Institute of Technology
@@ -112,7 +112,7 @@ MIT in each case. |#
   (write-string "]"))
 
 (define (disassembler/write-compiled-code-block block info #!optional page?)
-  (let ((symbol-table (dbg-info/labels info)))
+  (let ((symbol-table (and info (dbg-info/labels info))))
     (if (or (default-object? page?) page?)
 	(begin
 	  (write-char #\page)
@@ -303,4 +303,4 @@ MIT in each case. |#
   (if symbol-table
       (write-string "    "))
   (write-instruction)
-  (newline))
+  (newline))
\ No newline at end of file