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comparison src/m/mips-nec.h @ 321:19dcec799385 r21-0-58

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Import from CVS: tag r21-0-58
author cvs
date Mon, 13 Aug 2007 10:46:44 +0200
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320:73c75c43c1f2 321:19dcec799385
1 /* m- file for Mips machines.
2 Copyright (C) 1987, 1992, 1993, 1995 Free Software Foundation, Inc.
3
4 This file contains some changes for our SVR4 based SINIX-Mips 5.4.
5 I hope this is helpful to port the emacs to our RM?00 series and
6 maybe to the DC/OSx (Mips-based) machines of Pyramid Inc.
7 (Marco.Walther@mch.sni.de)
8
9 This file is part of GNU Emacs.
10
11 GNU Emacs is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15
16 GNU Emacs is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with XEmacs; see the file COPYING. If not, write to
23 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
25
26 /* Synched up with: FSF 19.31. */
27
28 /* The following line tells the configuration script what sort of
29 operating system this machine is likely to run.
30 USUAL-OPSYS="note"
31
32 NOTE-START
33 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
34 Note that the proper m- file for the Decstation is m-pmax.h.
35 This is the m- file for SNI RM*00 machines. Use s- sinix5-4.h file!
36 With this the file mips-siemens.h is obsolete.
37 NOTE-END */
38
39 /* Define WORD_MACHINE if addresses and such have
40 * to be corrected before they can be used as byte counts. */
41
42 #undef WORD_MACHINE
43
44 /* Define how to take a char and sign-extend into an int.
45 On machines where char is signed, this is a no-op. */
46
47 #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
48
49 /* Now define a symbol for the cpu type, if your compiler
50 does not define it automatically:
51 Ones defined so far include vax, m68000, ns16000, pyramid,
52 orion, tahoe, APOLLO and many others */
53 #ifndef mips
54 # define mips
55 #endif
56
57 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
58 the 24-bit bit field into an int. In other words, if bit fields
59 are always unsigned.
60
61 If you use NO_UNION_TYPE, this flag does not matter. */
62
63 #define EXPLICIT_SIGN_EXTEND
64
65 /* Data type of load average, as read out of kmem. */
66
67 #define LOAD_AVE_TYPE long
68
69 /* Convert that into an integer that is 100 for a load average of 1.0 */
70
71 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0)
72
73 /* CDC EP/IX 1.4.3 uses /unix */
74
75 #undef KERNEL_FILE
76 #define KERNEL_FILE "/unix"
77
78 /* Define CANNOT_DUMP on machines where unexec does not work.
79 Then the function dump-emacs will not be defined
80 and temacs will do (load "loadup") automatically unless told otherwise. */
81
82 #undef CANNOT_DUMP
83
84 /* Define VIRT_ADDR_VARIES if the virtual addresses of
85 pure and impure space as loaded can vary, and even their
86 relative order cannot be relied on.
87
88 Otherwise Emacs assumes that text space precedes data space,
89 numerically. */
90
91 /* #define VIRT_ADDR_VARIES */
92
93 /* Define C_ALLOCA if this machine does not support a true alloca
94 and the one written in C should be used instead.
95 Define HAVE_ALLOCA to say that the system provides a properly
96 working alloca function and it should be used.
97 Define neither one if an assembler-language alloca
98 in the file alloca.s should be used. */
99
100 #ifdef __GNUC__
101 #define HAVE_ALLOCA
102 #else
103 #define C_ALLOCA
104 #endif
105
106 /* Define NO_REMAP if memory segmentation makes it not work well
107 to change the boundary between the text section and data section
108 when Emacs is dumped. If you define this, the preloaded Lisp
109 code will not be sharable; but that's better than failing completely. */
110
111 #define NO_REMAP
112
113 /* Describe layout of the address space in an executing process. */
114 /* MARCO ???
115 */
116 #define TEXT_START 0x400000
117 /*
118 #define DATA_START 0x10000000
119 #define DATA_SEG_BITS 0x10000000
120 */
121
122 #undef ORDINARY_LINK
123
124 #undef LIBS_DEBUG
125
126 /* Alter some of the options used when linking. */
127
128 #undef LIBS_MACHINE
129 /* #define LIBS_MACHINE "-lmld" */ /* mrb */
130 #define START_FILES "pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o"
131
132 #ifdef LIB_STANDARD
133 #undef LIB_STANDARD
134 #endif
135 #define LIB_STANDARD "-lc /usr/ccs/lib/crtn.o"
136
137 #ifdef __GNUC__
138 #define C_DEBUG_SWITCH
139 #define C_OPTIMIZE_SWITCH "-O"
140 #define LD_SWITCH_MACHINE
141 #else
142 #define C_DEBUG_SWITCH "-DSYSV"
143 #define C_OPTIMIZE_SWITCH "-DSYSV "
144 #define LD_SWITCH_MACHINE
145 #endif