![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to m-intel386.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / contrib / emacs-18.55 / src|
Return to m-intel386.h CVS log | Up to [CSRG BSD Unix] / 43BSDReno / contrib / emacs-18.55 / src |
1.1 root 1: /* m- file for intel 386.
2: Copyright (C) 1987 Free Software Foundation, Inc.
3:
4: This file is part of GNU Emacs.
5:
6: GNU Emacs is distributed in the hope that it will be useful,
7: but WITHOUT ANY WARRANTY. No author or distributor
8: accepts responsibility to anyone for the consequences of using it
9: or for whether it serves any particular purpose or works at all,
10: unless he says so in writing. Refer to the GNU Emacs General Public
11: License for full details.
12:
13: Everyone is granted permission to copy, modify and redistribute
14: GNU Emacs, but only under the conditions described in the
15: GNU Emacs General Public License. A copy of this license is
16: supposed to have been given to you along with GNU Emacs so you
17: can know your rights and responsibilities. It should be in a
18: file named COPYING. Among other things, the copyright notice
19: and this notice must be preserved on all copies. */
20:
21:
22: /* The following three symbols give information on
23: the size of various data types. */
24:
25: #define SHORTBITS 16 /* Number of bits in a short */
26:
27: #define INTBITS 32 /* Number of bits in an int */
28:
29: #define LONGBITS 32 /* Number of bits in a long */
30:
31: /* i386 is not big-endian: lowest numbered byte is least significant. */
32:
33: /* #undef BIG_ENDIAN */
34:
35: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
36: * group of arguments and treat it as an array of the arguments. */
37:
38: /* #define NO_ARG_ARRAY */
39:
40: /* Define WORD_MACHINE if addresses and such have
41: * to be corrected before they can be used as byte counts. */
42:
43: /* #define WORD_MACHINE */
44:
45: /* Define how to take a char and sign-extend into an int.
46: On machines where char is signed, this is a no-op. */
47:
48: #define SIGN_EXTEND_CHAR(c) (c)
49:
50: /* Now define a symbol for the cpu type, if your compiler
51: does not define it automatically:
52: Ones defined so far include vax, m68000, ns16000, pyramid,
53: orion, tahoe, APOLLO and many others */
54:
55: #define INTEL386
56:
57: /* Use type int rather than a union, to represent Lisp_Object */
58:
59: #define NO_UNION_TYPE
60:
61: /* crt0.c, if it is used, should use the i386-bsd style of entry.
62: with no extra dummy args. On USG and XENIX,
63: NO_REMAP says this isn't used. */
64:
65: #define CRT0_DUMMIES bogus_fp,
66:
67: /* crt0.c should define a symbol `start' and do .globl with a dot. */
68:
69: #define DOT_GLOBAL_START
70:
71: /* USG systems do not actually support the load average,
72: so disable it for them. */
73:
74: #ifdef XENIX
75: /* Data type of load average, as read out of kmem. */
76: #define LOAD_AVE_TYPE short
77:
78: /* Convert that into an integer that is 100 for a load average of 1.0 */
79: #define LOAD_AVE_CVT(x) (((double) (x)) * 100.0 / FSCALE)
80:
81: #define FSCALE 256.0 /* determined by experimentation... */
82: #endif
83:
84: /* Define CANNOT_DUMP on machines where unexec does not work.
85: Then the function dump-emacs will not be defined
86: and temacs will do (load "loadup") automatically unless told otherwise. */
87:
88: /* #define CANNOT_DUMP */
89:
90: /* Define VIRT_ADDR_VARIES if the virtual addresses of
91: pure and impure space as loaded can vary, and even their
92: relative order cannot be relied on.
93:
94: Otherwise Emacs assumes that text space precedes data space,
95: numerically. */
96:
97: /* #define VIRT_ADDR_VARIES */
98:
99: #ifdef XENIX
100: #define VALBITS 26
101: #define GCTYPEBITS 5
102:
103: /* Define NO_REMAP if memory segmentation makes it not work well
104: to change the boundary between the text section and data section
105: when Emacs is dumped. If you define this, the preloaded Lisp
106: code will not be sharable; but that's better than failing completely. */
107:
108: #define NO_REMAP
109:
110: #define STACK_DIRECTION -1
111:
112: /* Since cannot purify, use standard Xenix 386 startup code. */
113:
114: #define START_FILES /lib/386/Sseg.o pre-crt0.o /lib/386/Scrt0.o
115:
116: /* These really use terminfo. */
117:
118: #define LIBS_TERMCAP /lib/386/Slibcurses.a \
119: /lib/386/Slibtinfo.a /lib/386/Slibx.a
120:
121: /* Standard libraries for this machine. Since `-l' doesn't work in `ld'. */
122: /* '__fltused' is unresolved w/o Slibcfp.a */
123: #define LIB_STANDARD /lib/386/Slibcfp.a /lib/386/Slibc.a
124: #else /* not XENIX */
125:
126: #ifdef USG
127: #define LIB_STANDARD -lPW -lc
128: #define HAVE_ALLOCA
129: #define NO_REMAP
130: #define TEXT_START 0
131: #endif /* USG */
132: #endif /* not XENIX */
133:
134: #ifdef BSD
135: #define HAVE_ALLOCA
136: #endif /* BSD */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.