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- /* machine description for Bull DPX/2 range
- Copyright (C) 1985, 1986 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 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 GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Synched up with: FSF 19.29. */
-
- /* The following line tells the configuration script what sort of
- operating system this machine is likely to run.
- USUAL-OPSYS="usg5-3" */
-
- /*
- * You need to either un-comment one of these lines, or copy one
- * of them to config.h before you include this file.
- * Note that some simply define a constant and others set a value.
- */
-
- /* #define ncl_el /* DPX/2 210,220 etc */
- /* #define ncl_mr 1 /* DPX/2 320,340 (and 360,380 ?) */
-
- /* 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:
- Ones defined so far include vax, m68000, ns16000, pyramid,
- orion, tahoe, APOLLO and many others */
-
- /* /bin/cc on ncl_el and ncl_mr define m68k and mc68000 */
-
- /* Use type int rather than a union, to represent Lisp_Object */
- /* This is desirable for most machines. */
-
- #define NO_UNION_TYPE
-
- /* 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 FSCALE 1000.0
- #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 C_ALLOCA
- /* #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
-
- /*
- * end of the standard macro's
- */
-
- /*
- * a neat identifier to handle source mods (if needed)
- */
- #ifndef DPX2
- #define DPX2
- #endif
-
- /* Disable support for shared libraries in unexec. */
-
- #undef USG_SHARED_LIBRARIES
-
- /*
- * if we use X11, libX11.a has these...
- */
- # undef LIB_X11_LIB
- # define LIB_X11_LIB -lX11
- # undef LIBX11_SYSTEM
- # define LIBX11_SYSTEM -lmalloc -lnsl
-
- /*
- * useful if you have INET loaded
- */
- # define LIBS_MACHINE -linet
-
-
- #if (defined(ncl_mr) || defined(ncl_el)) && !defined (NBPC)
- # define NBPC 4096
- #endif
-
- /*
- * if SIGIO is defined, much of the emacs
- * code assumes we are BSD !!
- */
- #ifdef SIGIO
- #define BROKEN_SIGIO
- #endif
-
-
- #ifdef SIGTSTP
- /*
- * sysdep.c(sys_suspend) works fine with emacs-18.58
- * and BOS 02.00.45, if you have an earler version
- * of Emacs and/or BOS, or have problems, or just prefer
- * to start a sub-shell rather than suspend-emacs,
- * un-comment out the next line.
- */
- /* # undef SIGTSTP /* make suspend-emacs spawn a sub-shell */
- #endif
- /*
- * no we don't want this at all
- */
- #ifdef USG_JOBCTRL
- # undef USG_JOBCTRL
- #endif
-
- /*
- * but we have that
- */
- #define GETPGRP_NO_ARG
-
- /* select also needs this header file--but not in ymakefile. */
- #ifndef NOT_C_CODE
- #include <sys/types.h>
- #include <sys/select.h>
- #endif
-
- #define TEXT_START 0
-
- /*
- * Define the direction of stack growth.
- */
-
- #define STACK_DIRECTION -1
-
- /* we also have this */
- #define HAVE_PTYS
- #define SYSV_PTYS
-
- /* on bos2.00.45 there is a bug that makes the F_SETOWN fcntl() call
- enters in an infinite loop. Avoid calling it */
- #define F_SETOWN_BUG
-
- /* system closedir sometimes complains about wrong descriptor
- for no apparent reasons. Use the provided closedir in sysdep.c instead */
- #ifdef HAVE_CLOSEDIR
- #undef HAVE_CLOSEDIR
- #endif
-
- /* Send signals to subprocesses by "typing" signal chars at them. */
- #define SIGNALS_VIA_CHARACTERS
-
- /* This is to prevent memory clobbering on the DPX/2 200. */
- #define LD_SWITCH_MACHINE -N -T32
-
- /* end of dpx2.h */
-
-
-