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c9ab42e1 | 1 | /* machine description file for Hitachi SR2001/SR2201 machines. |
d8f6d720 | 2 | Copyright (C) 1996, 2002 Free Software Foundation, Inc. |
c9ab42e1 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
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) | |
9 | any later version. | |
10 | ||
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; 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. */ | |
20 | ||
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
c9ab42e1 RS |
23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="hpux" */ | |
25 | ||
26 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word | |
27 | is the most significant byte. */ | |
28 | ||
29 | #define WORDS_BIG_ENDIAN | |
30 | ||
31 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a | |
32 | * group of arguments and treat it as an array of the arguments. */ | |
33 | ||
34 | #define NO_ARG_ARRAY | |
35 | ||
36 | /* Define WORD_MACHINE if addresses and such have | |
37 | * to be corrected before they can be used as byte counts. */ | |
38 | ||
39 | #undef WORD_MACHINE | |
40 | ||
41 | /* Now define a symbol for the cpu type, if your compiler | |
42 | does not define it automatically: | |
43 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
44 | orion, tahoe, APOLLO and many others */ | |
45 | #ifndef hp9000s800 | |
46 | # define hp9000s800 | |
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 | /* The standard definitions of these macros would work ok, | |
63 | but these are faster because the constants are short. */ | |
177c0ea7 | 64 | |
c9ab42e1 RS |
65 | |
66 | #define XUINT(a) (((unsigned)(a) << BITS_PER_INT-VALBITS) >> BITS_PER_INT-VALBITS) | |
67 | ||
68 | #define XSET(var, type, ptr) \ | |
69 | ((var) = ((int)(type) << VALBITS) + (((unsigned) (ptr) << BITS_PER_INT-VALBITS) >> BITS_PER_INT-VALBITS)) | |
70 | ||
71 | #define XMARKBIT(a) ((a) < 0) | |
72 | #define XSETMARKBIT(a,b) ((a) = ((b) ? (a)|MARKBIT : (a) & ~MARKBIT)) | |
73 | ||
74 | #if 0 /* Loses when sign bit of type field is set. */ | |
75 | #define XUNMARK(a) ((a) = (((a) << BITS_PER_INT-GCTYPEBITS-VALBITS) >> BITS_PER_INT-GCTYPEBITS-VALBITS)) | |
76 | #endif | |
c9ab42e1 RS |
77 | \f |
78 | /* #ifdef __hpux */ | |
79 | /* Now define a symbol for the cpu type, if your compiler | |
80 | does not define it automatically: | |
81 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
82 | orion, tahoe, APOLLO and many others */ | |
83 | ||
84 | #ifndef hp9000s800 | |
85 | # define hp9000s800 | |
86 | #endif | |
87 | ||
88 | ||
89 | /* Data type of load average, as read out of kmem. */ | |
90 | ||
91 | #define LOAD_AVE_TYPE double | |
92 | ||
93 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
94 | ||
95 | #define LOAD_AVE_CVT(x) ((int) (x * 100.0)) | |
96 | ||
97 | ||
98 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
99 | Then the function dump-emacs will not be defined | |
100 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
101 | ||
102 | #undef CANNOT_DUMP | |
103 | ||
104 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
105 | pure and impure space as loaded can vary, and even their | |
106 | relative order cannot be relied on. | |
107 | ||
108 | Otherwise Emacs assumes that text space precedes data space, | |
109 | numerically. */ | |
110 | ||
111 | #define VIRT_ADDR_VARIES | |
c9ab42e1 RS |
112 | \f |
113 | /* the data segment on this machine always starts at address 0x40000000. */ | |
114 | ||
115 | #define DATA_SEG_BITS 0x40000000 | |
116 | ||
117 | #define DATA_START 0x40000000 | |
118 | #define TEXT_START 0x00000000 | |
119 | ||
c9ab42e1 RS |
120 | /* Define NO_REMAP if memory segmentation makes it not work well |
121 | to change the boundary between the text section and data section | |
122 | when Emacs is dumped. If you define this, the preloaded Lisp | |
123 | code will not be sharable; but that's better than failing completely. */ | |
124 | ||
125 | #define NO_REMAP | |
126 | ||
127 | /* This machine requires completely different unexec code | |
128 | which lives in a separate file. Specify the file name. */ | |
129 | ||
130 | #define UNEXEC unexhp9k800.o | |
131 | ||
132 | #define LIBS_MACHINE | |
133 | #define LIBS_DEBUG | |
134 | ||
135 | /* Include the file bsdtty.h, since this machine has job control. */ | |
136 | /* #define NEED_BSDTTY */ | |
137 | \f | |
138 | /* The symbol in the kernel where the load average is found | |
139 | is named _avenrun. At this time there are two major flavors | |
140 | of hp-ux (there is the s800 and s300 (s200) flavors). The | |
141 | differences are thusly moved to the corresponding machine description file. | |
142 | */ | |
143 | ||
144 | /* no underscore please */ | |
145 | #define LDAV_SYMBOL "avenrun" | |
146 | ||
147 | #if 0 /* Supposedly no longer true. */ | |
148 | /* In hpux, for unknown reasons, S_IFLNK is defined even though | |
149 | symbolic links do not exist. | |
150 | Make sure our conditionals based on S_IFLNK are not confused. | |
151 | ||
152 | Here we assume that stat.h is included before config.h | |
153 | so that we can override it here. */ | |
154 | ||
155 | #undef S_IFLNK | |
156 | #endif | |
157 | ||
158 | /* On USG systems these have different names. */ | |
159 | ||
160 | #define index strchr | |
161 | #define rindex strrchr | |
162 | ||
163 | /* #endif */ |