1/* Machine-dependent configuration for GNU Emacs for AT&T 3b machines. 2 Copyright (C) 1986, 2001, 2002, 2003, 2004, 2005, 3 2006, 2007 Free Software Foundation, Inc. 4 5 Modified by David Robinson (daver@csvax.caltech.edu) 6/6/86 6 7This file is part of GNU Emacs. 8 9GNU Emacs is free software; you can redistribute it and/or modify 10it under the terms of the GNU General Public License as published by 11the Free Software Foundation; either version 2, or (at your option) 12any later version. 13 14GNU Emacs is distributed in the hope that it will be useful, 15but WITHOUT ANY WARRANTY; without even the implied warranty of 16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17GNU General Public License for more details. 18 19You should have received a copy of the GNU General Public License 20along with GNU Emacs; see the file COPYING. If not, write to 21the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 22Boston, MA 02110-1301, USA. */ 23 24 25/* The following line tells the configuration script what sort of 26 operating system this machine is likely to run. 27 USUAL-OPSYS="usg5-2-2" */ 28 29/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word 30 is the most significant byte. */ 31 32#define WORDS_BIG_ENDIAN 33 34/* Define NO_ARG_ARRAY if you cannot take the address of the first of a 35 * group of arguments and treat it as an array of the arguments. */ 36 37/* #define NO_ARG_ARRAY */ 38 39/* Define WORD_MACHINE if addresses and such have 40 * to be corrected before they can be used as byte counts. */ 41 42/* #define WORD_MACHINE */ 43 44/* Now define a symbol for the cpu type, if your compiler 45 does not define it automatically */ 46#define ATT3B 47 48/* Use type int rather than a union, to represent Lisp_Object */ 49/* This is desirable for most machines. */ 50 51#define NO_UNION_TYPE 52 53/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend 54 the bit field into an int. In other words, if bit fields 55 are always unsigned. 56 57 If you use NO_UNION_TYPE, this flag does not matter. */ 58 59#define EXPLICIT_SIGN_EXTEND 60 61/* Data type of load average, as read out of kmem. */ 62/* #define LOAD_AVE_TYPE long */ 63 64/* Convert that into an integer that is 100 for a load average of 1.0 */ 65 66/* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */ 67 68/* Define CANNOT_DUMP on machines where unexec does not work. 69 Then the function dump-emacs will not be defined 70 and temacs will do (load "loadup") automatically unless told otherwise. */ 71/* #define CANNOT_DUMP */ 72 73/* Define VIRT_ADDR_VARIES if the virtual addresses of 74 pure and impure space as loaded can vary, and even their 75 relative order cannot be relied on. 76 77 Otherwise Emacs assumes that text space precedes data space, 78 numerically. */ 79 80/* #define VIRT_ADDR_VARIES */ /* Karl Kleinpaste says this isn't needed. */ 81 82/* SysV has alloca in the PW library */ 83 84#define LIB_STANDARD -lPW -lc 85 86/* Define NO_REMAP if memory segmentation makes it not work well 87 to change the boundary between the text section and data section 88 when Emacs is dumped. If you define this, the preloaded Lisp 89 code will not be sharable; but that's better than failing completely. */ 90 91#define NO_REMAP 92 93/* #define LD_SWITCH_MACHINE -N */ 94 95/* Use Terminfo, not Termcap. */ 96 97#define TERMINFO 98 99/* -O has been observed to make correct C code in Emacs not work. 100 So don't try to use it. */ 101 102#if u3b2 || u3b5 || u3b15 103#define C_OPTIMIZE_SWITCH 104#endif 105 106/* Define our page size. */ 107 108#define NBPC 2048 109 110#if 0 /* If this is still needed, don't hard-code assumptions about 111 the number of VALBITS, or other assumptions about the 112 Lisp_Object representation. Try to extend lisp.h instead, if 113 necessary. */ 114/* The usual definition of XINT, which involves shifting, does not 115 sign-extend properly on this machine. */ 116 117#define XINT(i) (((sign_extend_temp=(i)) & 0x00800000) \ 118 ? (sign_extend_temp | 0xFF000000) \ 119 : (sign_extend_temp & 0x00FFFFFF)) 120#endif 121 122#ifdef emacs /* Don't do this when making xmakefile! */ 123extern int sign_extend_temp; 124#endif 125 126#if u3b2 || u3b5 || u3b15 127/* On 3b2/5/15, data space has high order bit on. */ 128#define DATA_SEG_BITS 0x80000000 129#endif /* 3b2, 3b5 or 3b15 */ 130 131#define TEXT_START 0 132 133/* (short) negative-int doesn't sign-extend correctly */ 134#define SHORT_CAST_BUG 135 136/* 3B2s with WIN/3B have winsize defined in ptem.h */ 137#if u3b2 138#define NEED_PTEM_H 139#endif /* u3b2 */ 140 141/* 3b2 does not have memmove, I'm told. */ 142/* It is safe to have no parens around the args in the safe_bcopy call, 143 and parens would screw up the prototype decl for memmove. */ 144#define memmove(d, s, n) safe_bcopy (s, d, n) 145 146/* This affects filemode.c. */ 147#define NO_MODE_T 148 149/* arch-tag: 07441a37-d630-447f-94fa-7da19645c97a 150 (do not change this comment) */ 151