--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/m/alpha.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,247 @@
+/* machine description file For the alpha chip.
+   Copyright (C) 1994 Free Software Foundation, Inc.
+
+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 1, 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="note"
+
+NOTE-START
+Use -opsystem=osf1
+NOTE-END
+
+*/
+
+#define DEC_ALPHA		/* Digital Alpha AXP */
+
+/* Define WORD_MACHINE if addresses and such have
+ * to be corrected before they can be used as byte counts.  */
+
+/* #define WORD_MACHINE */
+
+/* XEmacs addition: is this necessary? */
+
+/* XEmacs: Apparently not Andrew Cohen  8/24/95 */
+/* Define how to take a char and sign-extend into an int.
+   On machines where char is signed, this is a no-op.  */
+
+/* #define SIGN_EXTEND_CHAR(c) ((signed char)(c)) */
+
+/* Now define a symbol for the cpu type, if your compiler
+   does not define it automatically:
+   Ones defined so far include vax, m68000, ns16000, pyramid,
+   orion, tahoe, APOLLO and many others */
+
+/* __alpha defined automatically */
+
+
+/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
+/* This is desirable for most machines.  */
+
+/* XEmacs change:  something is not quite right with this defined. */
+/* I'm sure this is because VALBITS is defined to be 28 instead of 60.
+   --ben */
+#undef NO_UNION_TYPE
+
+/* Define the type to use.  */
+#define EMACS_INT long
+#define EMACS_UINT unsigned long
+#define SPECIAL_EMACS_INT
+
+/* 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.  */
+/* Load average requires special crocks.  Version 19 has them.
+   For now, don't define this.  */
+
+#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 */
+
+/* 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.  */
+
+#define HAVE_ALLOCA
+
+/* GNU malloc and the relocating allocator do not work together
+   with X.   [Who wrote that?]  */
+
+/* May 1995: reportedly [Rainer Schoepf <schoepf@uni-mainz.de>] both the
+   system and the gnu malloc system work with "alpha-dec-osf3.0" and
+   "alpha-dec-osf3.2".  */
+
+/* May 1995: it seems to me [Morten Welinder <terra@diku.dk>] that both
+   mallocs work with "alpha-dec-osf2.0", but I daren't break anything
+   right now.  Feel free to play if you want.  */
+
+/* #define SYSTEM_MALLOC */
+
+/* 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 */
+
+/* Some really obscure 4.2-based systems (like Sequent DYNIX)
+ * do not support asynchronous I/O (using SIGIO) on sockets,
+ * even though it works fine on tty's.  If you have one of
+ * these systems, define the following, and then use it in
+ * config.h (or elsewhere) to decide when (not) to use SIGIO.
+ *
+ * You'd think this would go in an operating-system description file,
+ * but since it only occurs on some, but not all, BSD systems, the
+ * reasonable place to select for it is in the machine description
+ * file.
+ */
+
+/* #define NO_SOCK_SIGIO */
+
+
+#define HAVE_X11R4
+#define HAVE_X11R5
+
+
+/* Describe layout of the address space in an executing process.  */
+
+#define TEXT_START    0x120000000
+#define DATA_START    0x140000000
+
+#if 0 /* #### XEmacs: see below */
+/* This is necessary for mem-limits.h, so that start_of_data gives
+   the correct value */
+#define DATA_SEG_BITS 0x140000000
+#endif /* 0 */
+
+#ifdef OSF1
+#define ORDINARY_LINK
+/* Some systems seem to have this, others don't.  */
+#ifdef HAVE_LIBDNET
+#define LIBS_MACHINE -ldnet
+#else
+#define LIBS_MACHINE -ldnet_stub
+#endif /* HAVE_LIBDNET */
+#endif /* OSF1 */
+
+#if 0 /* Rainer Schoepf <schoepf@uni-mainz.de> says this loses with X11R6
+	 since it has only shared libraries.  */
+#ifndef __GNUC__
+/* This apparently is for the system ld as opposed to Gnu ld.  */
+#ifdef OSF1
+#define LD_SWITCH_MACHINE      -non_shared
+#endif /* OSF1 */
+#endif /* not __GNUC__ */
+#endif /* 0 */
+
+#ifdef OSF1
+#define LIBS_DEBUG
+#define START_FILES pre-crt0.o 
+#endif /* OSF1 */
+
+#ifdef LINUX
+/* This controls a conditional in main.  */
+#define LINUX_SBRK_BUG
+#endif /* LINUX */
+
+/* The program to be used for unexec. */
+
+#define UNEXEC unexalpha.o
+
+#define PNTR_COMPARISON_TYPE unsigned long
+
+#if 0
+
+/* XEmacs -- removed code to define XINT, etc.  This gets
+   correctly handled automatically. */
+
+/* Declare malloc and realloc in a way that is clean.
+   But not in makefiles!  */
+
+#ifndef NOT_C_CODE
+/* We need these because pointers are larger than the default ints.  */
+#include <alloca.h>
+#endif /* not NOT_C_CODE */
+
+#endif /* 0 */
+
+#ifdef OSF1
+#define PTY_ITERATION		for (i = 0; i < 1; i++) /* ick */
+#define PTY_NAME_SPRINTF	/* none */
+#define PTY_TTY_NAME_SPRINTF	/* none */
+#define PTY_OPEN					\
+  do							\
+    {							\
+      int dummy;					\
+      int mask = sigsetmask (SIGCHLD);			\
+      if (-1 == openpty (&fd, &dummy, pty_name, 0, 0))	\
+	fd = -1;					\
+      sigsetmask (mask);				\
+      close (dummy);					\
+    }							\
+  while (0)
+#endif /* OSF1 */
+
+#ifdef linux
+#define COFF
+#define TEXT_END ({ extern int _etext; &_etext; })
+#define DATA_END ({ extern int _EDATA; &_EDATA; })
+#endif /* linux */
+
+/* XEmacs: The Dec CC compiler (but apparently not GCC, which uses different
+   macros due to its own compiler bug) breaks spectacularly
+   when MACROIZE_ERROR_CHECKING is turned on. */
+#define BROKEN_MACROIZE_ERROR_CHECKING
+
+/* XEmacs: from Andrew Cohen based on this comment found in <termio.h>:
+
+   Unfortunately System V and POSIX have different values for some of
+   the defines.  So we have to perform the following kluge which
+   redefines the V___ values for termio.  This means you cannot do
+   ioctls using termios and termio in the same source file.
+   */
+#define NO_TERMIO 1