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1 files changed, 182 insertions, 0 deletions

diff --git a/src/m/intel386.h b/src/m/intel386.h
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+/* machine description file for intel 386.
+   Copyright (C) 1987 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 GNU Emacs; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+/* The following line tells the configuration script what sort of 
+   operating system this machine is likely to run.
+   USUAL-OPSYS="note"
+
+NOTE-START
+Intel 386 (-machine=intel386 or -machine=is386.h)
+
+  The possibilities for -opsystem are: bsd4-2, usg5-2-2, usg5-3,
+  isc2-2, 386-ix, esix, or xenix.
+
+  18.58 should support a wide variety of operating systems.
+  Use isc2-2 for Interactive 386/ix version 2.2.
+  Use 386ix for prior versions.
+  Use esix for Esix.  It isn't clear what to do on an SCO system.
+
+  -machine=is386 is used for an Integrated Solutions 386 machine.
+  It may also be correct for Microport systems.
+
+Cubix QBx/386 (-machine=intel386 -opsystem=usg5-3)
+
+  Changes merged in 19.1.  Systems before 2/A/0 may fail to compile etags.c
+  due to a compiler bug.
+
+Prime EXL (-machine=intel386 -opsystem=usg5-3)
+
+  Minor changes merged in 19.1.
+NOTE-END */
+
+/* The following three symbols give information on
+ the size of various data types.  */
+
+#define SHORTBITS 16		/* Number of bits in a short */
+
+#define INTBITS 32		/* Number of bits in an int */
+
+#define LONGBITS 32		/* Number of bits in a long */
+
+/* i386 is not big-endian: lowest numbered byte is least significant. */
+
+/* #undef BIG_ENDIAN */
+
+/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
+ * group of arguments and treat it as an array of the arguments.  */
+
+/* #define NO_ARG_ARRAY */
+
+/* Define WORD_MACHINE if addresses and such have
+ * to be corrected before they can be used as byte counts.  */
+
+/* #define WORD_MACHINE */
+
+/* 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) (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 */
+
+#define INTEL386
+
+/* Use type int rather than a union, to represent Lisp_Object */
+
+#define NO_UNION_TYPE
+
+/* crt0.c, if it is used, should use the i386-bsd style of entry.
+   with no extra dummy args.  On USG and XENIX,
+   NO_REMAP says this isn't used. */
+
+#define CRT0_DUMMIES bogus_fp,
+
+/* crt0.c should define a symbol `start' and do .globl with a dot.  */
+
+#define DOT_GLOBAL_START
+
+#ifdef XENIX
+/* Data type of load average, as read out of kmem.  */
+#define LOAD_AVE_TYPE short
+
+/* 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 FSCALE 256.0         /* determined by experimentation...  */
+#endif
+
+#ifdef USG5_4 /* Older USG systems do not support the load average.  */
+/* 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  */
+/* This is totally uncalibrated. */
+
+#define LOAD_AVE_CVT(x) ((int) ((double) (x)) * 100.0 / FSCALE)
+#define FSCALE 256.0
+*endif
+
+/* 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 */
+
+#ifdef XENIX
+#define VALBITS 26
+#define GCTYPEBITS 5
+
+/* 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 STACK_DIRECTION -1
+
+/* Since cannot purify, use standard Xenix 386 startup code. */
+
+#define START_FILES	/lib/386/Sseg.o pre-crt0.o /lib/386/Scrt0.o
+
+/* These really use terminfo.  */
+
+#define LIBS_TERMCAP /lib/386/Slibcurses.a  \
+   /lib/386/Slibtinfo.a /lib/386/Slibx.a
+
+/* Standard libraries for this machine.  Since `-l' doesn't work in `ld'.  */
+/* '__fltused' is unresolved w/o Slibcfp.a */
+#define LIB_STANDARD /lib/386/Slibcfp.a /lib/386/Slibc.a
+#else /* not XENIX */
+
+#ifdef USG
+#define LIB_STANDARD -lPW -lc
+#define HAVE_ALLOCA
+#define NO_REMAP 
+#define TEXT_START 0
+#endif /* USG */
+#endif /* not XENIX */
+
+#ifdef BSD
+#define HAVE_ALLOCA
+#endif /* BSD */
+ BSD */
+
+/* If compiling with GCC, let GCC implement alloca.  */
+#if defined(__GNUC__) && !defined(alloca)
+#define alloca(n) __builtin_alloca(n)
+#define HAVE_ALLOCA
+#endif
+
+/* Search these directories just in case; I'm told they might be needed.  */
+#define C_SWITCH_MACHINE  -I/usr/X/include -I/usr/netinclude