1/* machine description file for SEQUENT BALANCE machines 2 Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004, 3 2005, 2006, 2007 Free Software Foundation, Inc. 4 5This file is part of GNU Emacs. 6 7GNU Emacs is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU Emacs is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU Emacs; see the file COPYING. If not, write to 19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20Boston, MA 02110-1301, USA. */ 21 22 23/* The following line tells the configuration script what sort of 24 operating system this machine is likely to run. 25 USUAL-OPSYS="note" 26 27NOTE-START 28Use -opsystem=bsd4-2, or -opsystem=bsd4-3 on newer systems. 29NOTE-END */ 30 31/* NOTE: this file works for DYNIX release 2.0 32 (not tested on 1.3) on NS32000's */ 33 34/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word 35 is the most significant byte. */ 36 37#undef WORDS_BIG_ENDIAN 38 39/* Define NO_ARG_ARRAY if you cannot take the address of the first of a 40 * group of arguments and treat it as an array of the arguments. */ 41 42/* #define NO_ARG_ARRAY */ 43 44/* Define WORD_MACHINE if addresses and such have 45 * to be corrected before they can be used as byte counts. */ 46 47/* #define WORD_MACHINE */ 48 49/* Now define a symbol for the cpu type, if your compiler 50 does not define it automatically: 51 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO 52 are the ones defined so far. */ 53 54/* BTW: DYNIX defines sequent, ns32000, and ns16000 (GENIX compatibility) */ 55#ifndef sequent /* pre DYNIX 2.1 releases */ 56# define sequent 57#endif 58 59/* Use type int rather than a union, to represent Lisp_Object */ 60/* This is desirable for most machines. */ 61 62#define NO_UNION_TYPE 63 64/* crt0.c should use the vax-bsd style of entry, with these dummy args. */ 65 66#define CRT0_DUMMIES bogus_fp, 67 68/* crt0.c should define a symbol `start' and do .globl with a dot. */ 69 70#define DOT_GLOBAL_START 71 72/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend 73 the 24-bit bit field into an int. In other words, if bit fields 74 are always unsigned. 75 76 If you use NO_UNION_TYPE, this flag does not matter. */ 77 78#define EXPLICIT_SIGN_EXTEND 79 80/* Data type of load average, as read out of kmem. */ 81 82#define LOAD_AVE_TYPE unsigned long 83 84/* Convert that into an integer that is 100 for a load average of 1.0 */ 85 86#define FSCALE 1000.0 87#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) 88 89/* Define CANNOT_DUMP on machines where unexec does not work. 90 Then the function dump-emacs will not be defined 91 and temacs will do (load "loadup") automatically unless told otherwise. */ 92 93/* #define CANNOT_DUMP */ 94 95/* Define VIRT_ADDR_VARIES if the virtual addresses of 96 pure and impure space as loaded can vary, and even their 97 relative order cannot be relied on. 98 99 Otherwise Emacs assumes that text space precedes data space, 100 numerically. */ 101 102/* #define VIRT_ADDR_VARIES */ 103 104/* Name of file the to look in 105 for the kernel symbol table (for load average) */ 106 107#undef KERNEL_FILE 108#define KERNEL_FILE "/dynix" 109 110/* Avoids a compiler bug */ 111 112#define TAHOE_REGISTER_BUG 113 114/* Say that the text segment of a.out includes the header; 115 the header actually occupies the first few bytes of the text segment 116 and is counted in hdr.a_text. Furthermore, the value written 117 in the a_text in the file must have N_ADDRADJ added to it. */ 118 119#define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR)) 120 121/* This is the offset of the executable's text, from the start of the file. */ 122 123#define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr)) 124 125/* (short) negative-int doesn't sign-extend correctly */ 126#define SHORT_CAST_BUG 127 128/* Cause compilations to be done in parallel in ymakefile. */ 129#define MAKE_PARALLEL & 130 131/* Say that mailer interlocking uses flock. */ 132#define MAIL_USE_FLOCK 133 134/* On many 4.2-based systems, there's a rather tricky bug 135 * with the interpretation of the pid/pgrp value given to 136 * the F_SETOWN fcntl() call. It works as documented EXCEPT 137 * when applied to filedescriptors for sockets, in which case 138 * the sign must be reversed. If your emacs subprocesses get 139 * SIGIO's when they shouldn't, while running on a socket 140 * (e.g. under X windows), you should probably define this. 141 */ 142 143#define F_SETOWN_SOCK_NEG 144 145/* Some really obscure 4.2-based systems (like Sequent DYNIX) 146 * do not support asynchronous I/O (using SIGIO) on sockets, 147 * even though it works fine on tty's. If you have one of 148 * these systems, define the following, and then use it in 149 * config.h (or elsewhere) to decide when (not) to use SIGIO. 150 */ 151 152#define NO_SOCK_SIGIO 153 154/* Define how to search all pty names. 155 This is for Dynix 3.0; delete next 5 definitions for older systems. */ 156 157#define PTY_MAJOR "pqrstuvwPQRSTUVW" 158#define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" 159#define PTY_ITERATION \ 160 register int ma, mi; \ 161 for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++) \ 162 for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++) 163#define PTY_NAME_SPRINTF \ 164 sprintf (ptyname, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); 165#define PTY_TTY_NAME_SPRINTF \ 166 sprintf (ptyname, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); 167 168/* arch-tag: 81caea48-aa64-4021-9544-e969dea71ee8 169 (do not change this comment) */ 170