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comparison src/m/alliant.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 /* alliant.h Alliant machine running system version 2 or 3.
2 Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
3 Note that for version 1 of the Alliant system
4 you should use alliant1.h instead of this file.
5 Use alliant4.h for version 4.
6
7 This file is part of GNU Emacs.
8
9 GNU Emacs is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
13
14 GNU Emacs is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with XEmacs; see the file COPYING. If not, write to
21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
23
24 /* Synched up with: FSF 19.31. */
25
26 /* The following line tells the configuration script what sort of
27 operating system this machine is likely to run.
28 USUAL-OPSYS="bsd4-2" */
29
30 /* Define WORD_MACHINE if addresses and such have
31 * to be corrected before they can be used as byte counts. */
32
33 #undef WORD_MACHINE
34
35 /* Now define a symbol for the cpu type, if your compiler
36 does not define it automatically:
37 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
38 are the ones defined so far. */
39
40 #define ALLIANT
41
42 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
43 the bit field into an int. In other words, if bit fields
44 are always unsigned.
45
46 If you use NO_UNION_TYPE, this flag does not matter. */
47 /* On Alliants, bitfields are unsigned. */
48
49 #define EXPLICIT_SIGN_EXTEND
50
51 /* No load average information available for Alliants. */
52
53 #undef LOAD_AVE_TYPE
54 #undef LOAD_AVE_CVT
55
56 /* Define CANNOT_DUMP on machines where unexec does not work.
57 Then the function dump-emacs will not be defined
58 and temacs will do (load "loadup") automatically unless told otherwise. */
59
60 #undef CANNOT_DUMP
61
62 /* Define VIRT_ADDR_VARIES if the virtual addresses of
63 pure and impure space as loaded can vary, and even their
64 relative order cannot be relied on.
65
66 Otherwise Emacs assumes that text space precedes data space,
67 numerically. */
68
69 #undef VIRT_ADDR_VARIES
70
71 /* Define C_ALLOCA if this machine does not support a true alloca
72 and the one written in C should be used instead.
73 Define HAVE_ALLOCA to say that the system provides a properly
74 working alloca function and it should be used.
75 Define neither one if an assembler-language alloca
76 in the file alloca.s should be used. */
77
78 #undef C_ALLOCA
79 #define HAVE_ALLOCA
80
81 #ifdef ALLIANT_1
82 #define C_ALLOCA
83 #undef HAVE_ALLOCA
84 #endif /* ALLIANT_1 */
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 /* Actually, Alliant CONCENTRIX does paging "right":
91 data pages are copy-on-write, which means that the pure data areas
92 are shared automatically and remapping is not necessary. */
93
94 #define NO_REMAP
95
96 /* Alliant needs special crt0.o because system version is not reentrant */
97
98 #define START_FILES crt0.o
99
100 /* Alliant dependent code for dumping executing image.
101 See crt0.c code for alliant. */
102
103 #define ADJUST_EXEC_HEADER {\
104 extern int _curbrk, _setbrk;\
105 _setbrk = _curbrk;\
106 hdr.a_bss_addr = bss_start;\
107 unexec_text_start = hdr.a_text_addr;}
108
109 /* cc screws up on long names. Try making cpp replace them. */
110
111 #ifdef ALLIANT_1
112 #define Finsert_abbrev_table_description Finsert_abbrev_table_descrip
113 #define internal_with_output_to_temp_buffer internal_with_output_to_tem
114 #endif
115
116 /* "vector" is a typedef in /usr/include/machine/reg.h, so its use as
117 a variable name causes errors when compiling under ANSI C. */
118
119 #define vector xxvector