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1.1 root 1: /* m- file for Gould with UTX/32 2.0. (See MACHINES for older versions.)
2: Copyright (C) 1986 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: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
32: is the most significant byte. */
33:
34: #define BIG_ENDIAN
35:
36: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
37: * group of arguments and treat it as an array of the arguments. */
38:
39: #define NO_ARG_ARRAY
40:
41: /* Define WORD_MACHINE if addresses and such have
42: * to be corrected before they can be used as byte counts. */
43:
44: /* #define WORD_MACHINE */
45:
46: /* Define how to take a char and sign-extend into an int.
47: On machines where char is signed, this is a no-op. */
48:
49: #define SIGN_EXTEND_CHAR(c) (c)
50:
51: /* Now define a symbol for the cpu type, if your compiler
52: does not define it automatically */
53:
54: #ifndef GOULD
55: #define GOULD
56: #endif
57:
58: /* Use type int rather than a union, to represent Lisp_Object */
59: /* This is desirable for most machines. */
60:
61: #define NO_UNION_TYPE
62:
63: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
64: the 24-bit bit field into an int. In other words, if bit fields
65: are always unsigned.
66:
67: If you use NO_UNION_TYPE, this flag does not matter. */
68:
69: #define EXPLICIT_SIGN_EXTEND
70:
71: /* Data type of load average, as read out of kmem. */
72:
73: #define LOAD_AVE_TYPE double
74:
75: /* Convert that into an integer that is 100 for a load average of 1.0 */
76:
77: #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)
78:
79: /* Define CANNOT_DUMP on machines where unexec does not work.
80: Then the function dump-emacs will not be defined
81: and temacs will do (load "loadup") automatically unless told otherwise. */
82:
83: /* #define CANNOT_DUMP */
84:
85: /* Define VIRT_ADDR_VARIES if the virtual addresses of
86: pure and impure space as loaded can vary, and even their
87: relative order cannot be relied on.
88:
89: Otherwise Emacs assumes that text space precedes data space,
90: numerically. */
91:
92: #define VIRT_ADDR_VARIES
93:
94: /* Define C_ALLOCA if this machine does not support a true alloca
95: and the one written in C should be used instead.
96: Define HAVE_ALLOCA to say that the system provides a properly
97: working alloca function and it should be used.
98: Define neither one if an assembler-language alloca
99: in the file alloca.s should be used. */
100:
101: #define C_ALLOCA
102: #define STACK_DIRECTION -1 /* grows towards lower addresses on Gould UTX/32 */
103:
104: /* No need to extend the user stack. */
105:
106: /* #define LD_SWITCH_MACHINE */
107:
108: /* -g is broken on the Gould. */
109:
110: #define C_DEBUG_SWITCH
111:
112: /* Comparing pointers as unsigned ints tickles a bug in older compilers. */
113:
114: #define PNTR_COMPARISON_TYPE int
115:
116: /* The GOULD machine counts the a.out file header as part of the text. */
117:
118: #define A_TEXT_OFFSET(HDR) sizeof (HDR)
119:
120: /* Machine-dependent action when about to dump an executable file. */
121:
122: #define ADJUST_EXEC_HEADER \
123: unexec_text_start = hdr.a_txbase + sizeof (hdr);
124:
125: /* We use the system's crt0.o. Somehow it avoids losing
126: with `environ' the way most standard crt0.o's do. */
127:
128: #define START_FILES pre-crt0.o /lib/crt0.o
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