From: Chris Hanson <org/chris-hanson/cph>
Date: Tue, 19 May 1987 12:51:34 +0000 (+0000)
Subject: Define `undefined-conditional-branch' constant which is used to build
X-Git-Tag: 20090517-FFI~13501
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=c2f2449d6da964e4578926a94f6df0275f897872;p=mit-scheme.git

Define `undefined-conditional-branch' constant which is used to build
two-armed IF statements and COND with no ELSE clause.
---

diff --git a/v7/src/runtime/scode.scm b/v7/src/runtime/scode.scm
index 37624c0b6..090ba7a9e 100644
--- a/v7/src/runtime/scode.scm
+++ b/v7/src/runtime/scode.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/scode.scm,v 13.42 1987/03/17 18:52:47 cph Exp $
+;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/scode.scm,v 13.43 1987/05/19 12:51:34 cph Exp $
 ;;;
 ;;;	Copyright (c) 1987 Massachusetts Institute of Technology
 ;;;
@@ -68,6 +68,9 @@
   (set! make-false (make-constant-maker 'FALSE))
   (set! make-true (make-constant-maker 'TRUE)))
 
+(define undefined-conditional-branch
+  (primitive-set-type (microcode-type 'TRUE 1)))
+
 ;;;; QUOTATION
 
 (define quotation?)