--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/m/att3b.h	Mon Aug 13 11:28:15 2007 +0200
@@ -0,0 +1,145 @@
+/* Machine-dependent configuration for GNU Emacs for AT&T 3b machines.
+   Copyright (C) 1986 Free Software Foundation, Inc.
+
+   Modified by David Robinson (daver@csvax.caltech.edu) 6/6/86
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: FSF 19.31. */
+
+/* The following line tells the configuration script what sort of 
+   operating system this machine is likely to run.
+   USUAL-OPSYS="usg5-2-2"  */
+
+/* Define WORD_MACHINE if addresses and such have
+ * to be corrected before they can be used as byte counts.  */
+
+/* #define WORD_MACHINE */
+
+/* Now define a symbol for the cpu type, if your compiler
+   does not define it automatically */
+#define ATT3B
+
+/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
+   the bit field into an int.  In other words, if bit fields
+   are always unsigned.
+
+   If you use NO_UNION_TYPE, this flag does not matter.  */
+
+#define EXPLICIT_SIGN_EXTEND
+
+/* Data type of load average, as read out of kmem.  */
+/* #define LOAD_AVE_TYPE long */
+
+/* Convert that into an integer that is 100 for a load average of 1.0  */
+
+/* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */
+
+/* Define CANNOT_DUMP on machines where unexec does not work.
+   Then the function dump-emacs will not be defined
+   and temacs will do (load "loadup") automatically unless told otherwise.  */
+/* #define CANNOT_DUMP */
+
+/* Define VIRT_ADDR_VARIES if the virtual addresses of
+   pure and impure space as loaded can vary, and even their
+   relative order cannot be relied on.
+
+   Otherwise Emacs assumes that text space precedes data space,
+   numerically.  */
+
+/* #define VIRT_ADDR_VARIES */  /* Karl Kleinpaste says this isn't needed.  */
+
+/* Define C_ALLOCA if this machine does not support a true alloca
+   and the one written in C should be used instead.
+   Define HAVE_ALLOCA to say that the system provides a properly
+   working alloca function and it should be used.
+   Define neither one if an assembler-language alloca
+   in the file alloca.s should be used.  */
+
+/* SysV has alloca in the PW library */
+
+#define LIB_STANDARD "-lPW -lc"
+#define HAVE_ALLOCA
+
+/* Define NO_REMAP if memory segmentation makes it not work well
+   to change the boundary between the text section and data section
+   when Emacs is dumped.  If you define this, the preloaded Lisp
+   code will not be sharable; but that's better than failing completely.  */
+
+#define NO_REMAP
+
+/* #define LD_SWITCH_MACHINE -N */
+
+/* Use Terminfo, not Termcap.  */
+
+#define TERMINFO
+
+/* -O has been observed to make correct C code in Emacs not work.
+   So don't try to use it.  */
+
+#if u3b2 || u3b5 || u3b15
+#define C_OPTIMIZE_SWITCH
+#endif
+
+/* Define our page size.  */
+
+#define NBPC 2048
+
+/* The usual definition of XINT, which involves shifting, does not
+   sign-extend properly on this machine.  */
+
+#define XREALINT(i) (((sign_extend_temp=(i)) & 0x00800000) \
+		     ? (sign_extend_temp | 0xFF000000) \
+		     : (sign_extend_temp & 0x00FFFFFF))
+
+#ifdef emacs /* Don't do this when making xmakefile! */
+extern int sign_extend_temp;
+#endif
+
+#if u3b2 || u3b5 || u3b15
+
+/* On 3b2/5/15, data space has high order bit on. */
+#define VALBITS 27
+#define VALMASK (((1<<VALBITS) - 1) | (1 << 31))
+/* XEmacs: markbit is between type bits and value bits */
+/* #define XTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK)) */
+#define XTYPE(a) ((enum Lisp_Type) (((a) >> ((VALBITS) + 1)) & GCTYPEMASK))
+  
+#endif /* 3b2, 3b5 or 3b15 */
+
+#define TEXT_START 0
+
+
+/* For alloca.c (not actually used, since HAVE_ALLOCA) */
+#define STACK_DIRECTION 1
+
+/* (short) negative-int doesn't sign-extend correctly */
+#define SHORT_CAST_BUG
+
+/* 3B2s with WIN/3B have winsize defined in ptem.h */
+#if u3b2
+#define NEED_PTEM_H
+#endif /* u3b2 */
+
+/* 3b2 does not have memmove, I'm told.  */
+/* It is safe to have no parens around the args in the safe_bcopy call,
+   and parens would screw up the prototype decl for memmove.  */
+#define	memmove(d, s, n) safe_bcopy (s, d, n)
+
+/* This affects filemode.c.  */
+#define NO_MODE_T