1 /* machine description file for Masscomp 5000 series running RTU, ucb universe.
2 Copyright (C) 1986 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
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)
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.
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; 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. */
21 /* Synched up with: FSF 19.31. */
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
27 /* Now define a symbol for the cpu type, if your compiler
28 does not define it automatically:
29 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
30 are the ones defined so far. */
31 /* Masscomp predefines mc68000. */
32 #define m68000 mc68000
34 /* Data type of load average, as read out of kmem. */
36 #define LOAD_AVE_TYPE double
38 /* Convert that into an integer that is 100 for a load average of 1.0 */
40 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
42 /* Define CANNOT_DUMP on machines where unexec does not work.
43 Then the function dump-emacs will not be defined
44 and temacs will do (load "loadup") automatically unless told otherwise. */
48 /* Define C_ALLOCA if this machine does not support a true alloca
49 and the one written in C should be used instead.
50 Define HAVE_ALLOCA to say that the system provides a properly
51 working alloca function and it should be used.
52 Define neither one if an assembler-language alloca
53 in the file alloca.s should be used. */
55 /* On return from a subroutine, the 68020 compiler restores old contents of
56 register variables relative to sp, so alloca() screws up such routines.
57 The following definitions should work on all Masscomps. On the MC-5500
58 (a 68000) one can #undef C_ALLOCA and #define HAVE_ALLOCA. */
67 /* Define NO_REMAP if memory segmentation makes it not work well
68 to change the boundary between the text section and data section
69 when Emacs is dumped. If you define this, the preloaded Lisp
70 code will not be sharable; but that's better than failing completely. */
74 /* crt0.c should use the vax-bsd style of entry, with a dummy arg. */
76 #define CRT0_DUMMIES bogus_fp,
78 /* Name of file the to look in
79 for the kernel symbol table (for load average) */
81 #define KERNEL_FILE "/unix"
83 /* This triggers some stuff to avoid a compiler bug */
85 #define MASSC_REGISTER_BUG
87 /* Prevent -lg from being used for debugging. Not implemented? */
91 /* Adjust a header field for the executable file about to be dumped. */
93 #define ADJUST_EXEC_HEADER \
94 hdr.a_stamp = STAMP13; /* really want the latest stamp, whatever it is */