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137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/* machine description file for Masscomp 5000 series running RTU, ucb universe.
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Copyright (C) 1986 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* The following line tells the configuration script what sort of
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operating system this machine is likely to run.
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USUAL-OPSYS="rtu" */
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/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
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is the most significant byte. */
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#define WORDS_BIG_ENDIAN
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/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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* group of arguments and treat it as an array of the arguments. */
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#undef NO_ARG_ARRAY
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/* Define WORD_MACHINE if addresses and such have
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* to be corrected before they can be used as byte counts. */
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#undef WORD_MACHINE
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/* Now define a symbol for the cpu type, if your compiler
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does not define it automatically:
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vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
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are the ones defined so far. */
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/* Masscomp predefines mc68000. */
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#define m68000 mc68000
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/* Use type int rather than a union, to represent Lisp_Object */
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/* This is desirable for most machines. */
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#define NO_UNION_TYPE
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/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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the 24-bit bit field into an int. In other words, if bit fields
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are always unsigned.
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If you use NO_UNION_TYPE, this flag does not matter. */
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#undef EXPLICIT_SIGN_EXTEND
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/* Data type of load average, as read out of kmem. */
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#define LOAD_AVE_TYPE double
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/* Convert that into an integer that is 100 for a load average of 1.0 */
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#define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
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/* Define CANNOT_DUMP on machines where unexec does not work.
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Then the function dump-emacs will not be defined
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and temacs will do (load "loadup") automatically unless told otherwise. */
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#undef CANNOT_DUMP
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/* Define VIRT_ADDR_VARIES if the virtual addresses of
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pure and impure space as loaded can vary, and even their
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relative order cannot be relied on.
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Otherwise Emacs assumes that text space precedes data space,
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numerically. */
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#undef VIRT_ADDR_VARIES
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/* Define C_ALLOCA if this machine does not support a true alloca
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and the one written in C should be used instead.
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Define HAVE_ALLOCA to say that the system provides a properly
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working alloca function and it should be used.
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Define neither one if an assembler-language alloca
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in the file alloca.s should be used. */
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/* On return from a subroutine, the 68020 compiler restores old contents of
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register variables relative to sp, so alloca() screws up such routines.
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The following definitions should work on all Masscomps. On the MC-5500
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(a 68000) one can #undef C_ALLOCA and #define HAVE_ALLOCA. */
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#ifdef mc500
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#undef C_ALLOCA
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#define HAVE_ALLOCA
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#else
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#define C_ALLOCA
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#undef HAVE_ALLOCA
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#endif
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/* Define NO_REMAP if memory segmentation makes it not work well
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to change the boundary between the text section and data section
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when Emacs is dumped. If you define this, the preloaded Lisp
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code will not be sharable; but that's better than failing completely. */
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#undef NO_REMAP
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/* crt0.c should use the vax-bsd style of entry, with a dummy arg. */
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#define CRT0_DUMMIES bogus_fp,
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/* Name of file the to look in
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for the kernel symbol table (for load average) */
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#define KERNEL_FILE "/unix"
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/* This triggers some stuff to avoid a compiler bug */
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#define MASSC_REGISTER_BUG
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/* Prevent -lg from being used for debugging. Not implemented? */
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#define LIBS_DEBUG
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/*
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* Define HAVE_TERMIO if the system provides sysV-style ioctls
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* for terminal control.
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*/
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#define HAVE_TERMIO
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/* Adjust a header field for the executable file about to be dumped. */
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#define ADJUST_EXEC_HEADER \
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hdr.a_stamp = STAMP13; /* really want the latest stamp, whatever it is */
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