1 /* machine description file for Iris-4D machines. Use with s/irix*.h.
2 Copyright (C) 1987 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 /* Now define a symbol for the cpu type, if your compiler
24 does not define it automatically:
25 Ones defined so far include vax, m68000, ns16000, pyramid,
26 orion, tahoe, APOLLO and many others */
36 /* jg@genmagic.genmagic.com (John Giannandrea) says this is unnecessary. */
38 /* Data type of load average, as read out of kmem. */
40 #define LOAD_AVE_TYPE long /* This doesn't quite work on the 4D */
42 /* Convert that into an integer that is 100 for a load average of 1.0 */
44 #define LOAD_AVE_CVT(x) (int)(((double)(x)*100)/1024.0)
46 /* s-iris3-6.h uses /vmunix */
49 #define KERNEL_FILE "/unix"
52 /* Define CANNOT_DUMP on machines where unexec does not work.
53 Then the function dump-emacs will not be defined
54 and temacs will do (load "loadup") automatically unless told otherwise. */
58 /* Define C_ALLOCA if this machine does not support a true alloca
59 and the one written in C should be used instead.
60 Define HAVE_ALLOCA to say that the system provides a properly
61 working alloca function and it should be used.
62 Define neither one if an assembler-language alloca
63 in the file alloca.s should be used. */
65 /* #define C_ALLOCA */ /* Sjoerd.Mullender@cwi.nl says no need. */
66 /* #define HAVE_ALLOCA */
68 /* Define NO_REMAP if memory segmentation makes it not work well
69 to change the boundary between the text section and data section
70 when Emacs is dumped. If you define this, the preloaded Lisp
71 code will not be sharable; but that's better than failing completely. */
75 /* This machine requires completely different unexec code
76 which lives in a separate file. Specify the file name. */
80 #define UNEXEC "unexelf.o"
82 #define UNEXEC "unexmips.o"
85 #define TEXT_START 0x400000
86 #define DATA_START 0x10000000
89 /* -lsun in case using Yellow Pages for passwords. */
92 /* Define this if you have a fairly recent system,
93 in which crt1.o and crt1.n should be used. */
98 /* Must define START-FILES so that the linker can find /usr/lib/crt0.o. */
99 #define START_FILES "pre-crt0.o /usr/lib/crt1.o"
100 #define LIB_STANDARD "-lc /usr/lib/crtn.o"
102 #define START_FILES "pre-crt0.o /usr/lib/crt0.o"
103 /* The entry-point label (start of text segment) is `start', not `__start'. */
104 #define DEFAULT_ENTRY_ADDRESS start
105 #define LIB_STANDARD "-lc"
109 /* Use terminfo instead of termcap. */
113 /* Letter to use in finding device name of first pty,
114 if system supports pty's. 'a' means it is /dev/ptya0 */
116 #undef FIRST_PTY_LETTER
117 #define FIRST_PTY_LETTER 'q'
119 /* Define STACK_DIRECTION for alloca.c */
121 #undef STACK_DIRECTION
122 #define STACK_DIRECTION -1