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1.1 root 1: /* m- file for Silicon Graphics Iris 2500 Turbos;
2: also possibly for non-turbo Irises with system release 2.5.
3: Copyright (C) 1985, 1986 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 1, 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
19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20:
21:
22: #if 0
23: Message-Id: <[email protected]>
24: Subject: gnu emacs 18.41 on iris [23].5 machines
25: Date: 04 May 87 23:53:11 PDT (Mon)
26: From: [email protected]
27:
28: Aside from the SIGIOT, I know of only one bug, a real strange one:
29: I wrote a utimes interface, which copies elements from timevals
30: to utimbufs. This code is known good. The problem is that in
31: emacs, the utime doesn't seem to take effect (i.e. doesn't change the
32: dates at all) unless I call report_file_error *after* the utime returns!
33:
34: if (utime (name, &utb) < 0)
35: return;
36: else
37: /* XXX XXX XXX */
38: /* For some reason, if this is taken out, then the utime above breaks! */
39: /* (i.e. it doesn't set the time. This just makes no sense... */
40: /* Eric - May 4, 1987 */
41: report_file_error ("Worked just find\n", Qnil);
42:
43: Without any sort of debugger that works on emacs (I know... but I don't have
44: *time* right now to start with gdb), it was quite time consuming to track
45: it down to this.
46:
47: But since this code is only used for an optional 4th argument to one command
48: (copy-file), it would say that it is non-critical...
49: #endif /* 0 */
50:
51: /* The following three symbols give information on
52: the size of various data types. */
53:
54: #define SHORTBITS 16 /* Number of bits in a short */
55:
56: #define INTBITS 32 /* Number of bits in an int */
57:
58: #define LONGBITS 32 /* Number of bits in a long */
59:
60: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
61: is the most significant byte. */
62:
63: #define BIG_ENDIAN
64:
65: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
66: * group of arguments and treat it as an array of the arguments. */
67:
68: /* #define NO_ARG_ARRAY */
69:
70: /* Define WORD_MACHINE if addresses and such have
71: * to be corrected before they can be used as byte counts. */
72:
73: /* #define WORD_MACHINE */
74:
75: /* Define how to take a char and sign-extend into an int.
76: On machines where char is signed, this is a no-op. */
77:
78: #define SIGN_EXTEND_CHAR(c) (c)
79:
80: /* Now define a symbol for the cpu type, if your compiler
81: does not define it automatically:
82: Ones defined so far include vax, m68000, ns16000, pyramid,
83: orion, tahoe, APOLLO and many others */
84:
85: #ifndef m68000
86: #define m68000
87: #endif
88:
89: /* Use type int rather than a union, to represent Lisp_Object */
90: /* This is desirable for most machines. */
91:
92: #define NO_UNION_TYPE
93:
94: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
95: the 24-bit bit field into an int. In other words, if bit fields
96: are always unsigned.
97:
98: If you use NO_UNION_TYPE, this flag does not matter. */
99:
100: #define EXPLICIT_SIGN_EXTEND
101:
102: /* Data type of load average, as read out of kmem. */
103:
104: #define LOAD_AVE_TYPE long
105:
106: /* Convert that into an integer that is 100 for a load average of 1.0 */
107:
108: #define FSCALE 1.0
109: #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
110:
111: /* Define CANNOT_DUMP on machines where unexec does not work.
112: Then the function dump-emacs will not be defined
113: and temacs will do (load "loadup") automatically unless told otherwise. */
114:
115: /* #define CANNOT_DUMP */
116:
117: /* Define VIRT_ADDR_VARIES if the virtual addresses of
118: pure and impure space as loaded can vary, and even their
119: relative order cannot be relied on.
120:
121: Otherwise Emacs assumes that text space precedes data space,
122: numerically. */
123:
124: /* #define VIRT_ADDR_VARIES */
125:
126: /* Define C_ALLOCA if this machine does not support a true alloca
127: and the one written in C should be used instead.
128: Define HAVE_ALLOCA to say that the system provides a properly
129: working alloca function and it should be used.
130: Define neither one if an assembler-language alloca
131: in the file alloca.s should be used. */
132:
133: /* #define C_ALLOCA */
134: #define HAVE_ALLOCA
135:
136: /* Define NO_REMAP if memory segmentation makes it not work well
137: to change the boundary between the text section and data section
138: when Emacs is dumped. If you define this, the preloaded Lisp
139: code will not be sharable; but that's better than failing completely. */
140:
141: /* #define NO_REMAP */
142:
143: /* There is an inconsistency between the sgi assembler, linker which barfs
144: on these. */
145:
146: #define internal_with_output_to_temp_buffer stupid_long_name1
147: #define Finsert_abbrev_table_description stupid_long_name2
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