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/* machine description file for SEQUENT machines running DYNIX/ptx
Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004,
2005, 2006, 2007 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 3, 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, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* The following line tells the configuration script what sort of
operating system this machine is likely to run.
USUAL-OPSYS="ptx" */
#include "intel386.h"
/* Define how to take a char and sign-extend into an int.
On machines where char is signed, this is a no-op. */
/* CHECK THIS */
#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. */
/* BTW: ptx defines _SEQUENT_, i386 */
/* Use type int rather than a union, to represent Lisp_Object */
/* This is desirable for most machines. */
#define NO_UNION_TYPE
/* crt0.c should use the vax-bsd style of entry, with these dummy args. */
/* Already defined. Assume prior definition works for PTX. */
#if 0
#undef CRT0_DUMMIES
#define CRT0_DUMMIES dummy1, dummy2, dummy3,
#endif
/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
the 24-bit 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. */
#undef LOAD_AVE_TYPE
#define LOAD_AVE_TYPE unsigned long
/* Convert that into an integer that is 100 for a load average of 1.0 */
#undef FSCALE
#define FSCALE 1000.0
#undef LOAD_AVE_CVT
#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 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. */
/* On PTX, can't seem to get a valid executable unless NO_REMAP is
defined. This did work in the Sequent patched Emacs 18.57. */
#ifndef NO_REMAP
#define NO_REMAP
#endif
/* #undef NO_REMAP */
/* If a valid PTX executable could be dumped without NO_REMAP defined,
here's a guess at some defines to make it work. */
#ifndef NO_REMAP
/* PTX has getpagesize() but it returns 296. Using the default method of
including getpagesize.h in unexec.c returns 4096 which seems more
reasonable. */
#undef HAVE_GETPAGESIZE
/* Override magic number for a.out header. */
#define EXEC_MAGIC 0411 /* from a.out.h: separated I&D */
#define ADJUST_TEXT_SCNHDR_SIZE
#define ADJUST_TEXTBASE
/* The file sections in the Symmetry a.out must be on 4K boundaries. */
/* #define DATA_SECTION_ALIGNMENT (4096-1) */
#endif /* ifndef NO_REMAP */
/* Avoids a compiler bug. */
#define TAHOE_REGISTER_BUG
/* (short) negative-int doesn't sign-extend correctly. */
#define SHORT_CAST_BUG
/* Cause compilations to be done in parallel in ymakefile. */
#define MAKE_PARALLEL $&
/* Use terminfo library. */
#define LIBS_TERMCAP -ltermlib
/* arch-tag: 0494629b-7e11-4f6f-865f-62254ac46099
(do not change this comment) */
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