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1 | /* machine description for Harris NightHawk 88k based machines |
2 | (includes nh4000 and nh5000 machines). | |
3 | Copyright (C) 1994 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
14f48c6a KH |
21 | |
22 | /* This file manually constructed for Harris Night Hawk 4000 (and 5000) | |
23 | * series Motorola 88100 and 88110 based machines. | |
24 | */ | |
25 | ||
26 | /* The following line tells the configuration script what sort of | |
27 | operating system this machine is likely to run. | |
28 | USUAL-OPSYS="<name of system .h file here, without the s- or .h>" */ | |
29 | ||
14f48c6a KH |
30 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
31 | * group of arguments and treat it as an array of the arguments. */ | |
32 | ||
33 | #define NO_ARG_ARRAY | |
34 | ||
35 | /* Define WORD_MACHINE if addresses and such have | |
36 | * to be corrected before they can be used as byte counts. */ | |
37 | ||
38 | /* #define WORD_MACHINE */ | |
39 | ||
40 | /* Now define a symbol for the cpu type, if your compiler | |
41 | does not define it automatically: | |
42 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
43 | orion, tahoe, APOLLO and many others */ | |
44 | ||
45 | #ifndef m88000 | |
46 | #define m88000 | |
47 | #endif | |
48 | ||
49 | /* Use type int rather than a union, to represent Lisp_Object */ | |
50 | /* This is desirable for most machines. */ | |
51 | ||
52 | #define NO_UNION_TYPE | |
53 | ||
54 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
55 | the bit field into an int. In other words, if bit fields | |
56 | are always unsigned. | |
57 | ||
58 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
59 | ||
60 | /* #define EXPLICIT_SIGN_EXTEND */ | |
61 | ||
62 | /* Data type of load average, as read out of kmem. */ | |
63 | ||
64 | #define LOAD_AVE_TYPE long | |
65 | ||
66 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
67 | ||
68 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) | |
69 | ||
70 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
71 | Then the function dump-emacs will not be defined | |
72 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
73 | ||
74 | /* #define CANNOT_DUMP */ | |
75 | ||
76 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
77 | pure and impure space as loaded can vary, and even their | |
78 | relative order cannot be relied on. | |
79 | ||
80 | Otherwise Emacs assumes that text space precedes data space, | |
81 | numerically. */ | |
82 | ||
83 | /* #define VIRT_ADDR_VARIES */ | |
84 | ||
85 | /* Define C_ALLOCA if this machine does not support a true alloca | |
86 | and the one written in C should be used instead. | |
87 | Define HAVE_ALLOCA to say that the system provides a properly | |
88 | working alloca function and it should be used. | |
89 | Define neither one if an assembler-language alloca | |
90 | in the file alloca.s should be used. */ | |
91 | ||
92 | /* #define C_ALLOCA */ | |
93 | #define HAVE_ALLOCA | |
94 | ||
95 | /* Define NO_REMAP if memory segmentation makes it not work well | |
96 | to change the boundary between the text section and data section | |
97 | when Emacs is dumped. If you define this, the preloaded Lisp | |
98 | code will not be sharable; but that's better than failing completely. */ | |
99 | ||
100 | #define NO_REMAP | |
101 | ||
102 | /* Some really obscure 4.2-based systems (like Sequent DYNIX) | |
103 | * do not support asynchronous I/O (using SIGIO) on sockets, | |
104 | * even though it works fine on tty's. If you have one of | |
105 | * these systems, define the following, and then use it in | |
106 | * config.h (or elsewhere) to decide when (not) to use SIGIO. | |
107 | * | |
108 | * You'd think this would go in an operating-system description file, | |
109 | * but since it only occurs on some, but not all, BSD systems, the | |
110 | * reasonable place to select for it is in the machine description | |
111 | * file. | |
112 | */ | |
113 | ||
114 | /* #define NO_SOCK_SIGIO */ |