1 /* m- file for Mips machines.
2 Copyright (C) 1987, 1992 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Synched up with: FSF 19.31. */
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
28 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
29 Note that the proper m- file for the Decstation is m-pmax.h.
32 /* Define WORD_MACHINE if addresses and such have
33 * to be corrected before they can be used as byte counts. */
37 /* Define how to take a char and sign-extend into an int.
38 On machines where char is signed, this is a no-op. */
40 #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
42 /* Now define a symbol for the cpu type, if your compiler
43 does not define it automatically:
44 Ones defined so far include vax, m68000, ns16000, pyramid,
45 orion, tahoe, APOLLO and many others */
50 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
51 the bit field into an int. In other words, if bit fields
54 If you use NO_UNION_TYPE, this flag does not matter. */
56 #define EXPLICIT_SIGN_EXTEND
58 /* Data type of load average, as read out of kmem. */
60 #define LOAD_AVE_TYPE long
62 /* Convert that into an integer that is 100 for a load average of 1.0 */
64 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0)
66 /* CDC EP/IX 1.4.3 uses /unix */
69 #define KERNEL_FILE "/unix"
71 /* Define CANNOT_DUMP on machines where unexec does not work.
72 Then the function dump-emacs will not be defined
73 and temacs will do (load "loadup") automatically unless told otherwise. */
77 /* Define VIRT_ADDR_VARIES if the virtual addresses of
78 pure and impure space as loaded can vary, and even their
79 relative order cannot be relied on.
81 Otherwise Emacs assumes that text space precedes data space,
84 /* #define VIRT_ADDR_VARIES */
86 /* Define C_ALLOCA if this machine does not support a true alloca
87 and the one written in C should be used instead.
88 Define HAVE_ALLOCA to say that the system provides a properly
89 working alloca function and it should be used.
90 Define neither one if an assembler-language alloca
91 in the file alloca.s should be used. */
99 /* Define NO_REMAP if memory segmentation makes it not work well
100 to change the boundary between the text section and data section
101 when Emacs is dumped. If you define this, the preloaded Lisp
102 code will not be sharable; but that's better than failing completely. */
106 /* This machine requires completely different unexec code
107 which lives in a separate file. Specify the file name. */
109 #define UNEXEC "unexmips.o"
111 /* Describe layout of the address space in an executing process. */
113 #define TEXT_START 0x400000
114 #define DATA_START 0x800000
116 /* Alter some of the options used when linking. */
121 /* DECstations don't have this library. */
122 /* #define LIBS_MACHINE "-lmld" */
124 #define LD_SWITCH_MACHINE "-D 800000"
127 #define LINKER "/bsd43/bin/ld"
132 #define LD_SWITCH_MACHINE "-D 800000 -g3"
133 #define START_FILES "pre-crt0.o /usr/lib/crt1.o"
134 #define LIB_STANDARD "-lbsd -lc /usr/lib/crtn.o"
135 #define LIBS_TERMCAP "-lcurses"
137 #define C_SWITCH_MACHINE "-I/usr/include/bsd"
138 #define C_DEBUG_SWITCH "-O -g3"
141 #endif /* not NEWSOS5 */
146 /* Don't try to use SIGIO even though it is defined. */
149 /* Describe special kernel features. */
151 #if defined(emacs) && !defined(INHIBIT_BSD_TIME)
152 #include <bsd/sys/time.h>
155 /* The `select' in the system won't work for pipes, so don't use it. */
156 #undef HAVE_SELECT /* override configuration decision */
168 #undef MAIL_USE_FLOCK /* Someone should check this. */
170 #endif /* not NEWSOS5 */