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- /* RTPC machine dependent defines
- Copyright (C) 1986 Free Software Foundation, Inc.
-
- This file is part of GNU Emacs.
-
- GNU Emacs is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU Emacs is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- /* The following three symbols give information on
- the size of various data types. */
-
- #define SHORTBITS 16 /* Number of bits in a short */
-
- #define INTBITS 32 /* Number of bits in an int */
-
- #define LONGBITS 32 /* Number of bits in a long */
-
- /* Define BIG_ENDIAN iff lowest-numbered byte in a word
- is the most significant byte. */
-
- #define BIG_ENDIAN
-
- /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
- * group of arguments and treat it as an array of the arguments. */
-
- #define NO_ARG_ARRAY
-
- /* Define WORD_MACHINE if addresses and such have
- * to be corrected before they can be used as byte counts. */
-
- #define WORD_MACHINE
-
- /* Define how to take a char and sign-extend into an int.
- On machines where char is signed, this is a no-op. */
-
- #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
-
- /* Now define a symbol for the cpu type, if your compiler
- does not define it automatically. */
-
- #define ibmrt
- #define romp /* unfortunately old include files are hanging around. */
-
- /* Use type int rather than a union, to represent Lisp_Object */
- /* This is desirable for most machines. */
-
- #define NO_UNION_TYPE
-
- /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
- the 24-bit bit field into an int. In other words, if bit fields
- are always unsigned.
-
- If you use NO_UNION_TYPE, this flag does not matter. */
-
- #define EXPLICIT_SIGN_EXTEND
-
- /* Data type of load average, as read out of kmem. */
-
- #define LOAD_AVE_TYPE double /* For AIS (sysV) */
-
- /* Convert that into an integer that is 100 for a load average of 1.0 */
-
- #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)
-
- /* Define CANNOT_DUMP on machines where unexec does not work.
- Then the function dump-emacs will not be defined
- and temacs will do (load "loadup") automatically unless told otherwise. */
-
- /* #define CANNOT_DUMP */
-
- /* Define VIRT_ADDR_VARIES if the virtual addresses of
- pure and impure space as loaded can vary, and even their
- relative order cannot be relied on.
-
- Otherwise Emacs assumes that text space precedes data space,
- numerically. */
-
- #undef VIRT_ADDR_VARIES
-
- /* Define C_ALLOCA if this machine does not support a true alloca
- and the one written in C should be used instead.
- Define HAVE_ALLOCA to say that the system provides a properly
- working alloca function and it should be used.
- Define neither one if an assembler-language alloca
- in the file alloca.s should be used. */
-
- #define HAVE_ALLOCA
-
- /* The data segment in this machine starts at a fixed address.
- An address of data cannot be stored correctly in a Lisp object;
- we always lose the high bits. We must tell XPNTR to add them back. */
-
- #define DATA_SEG_BITS 0x10000000
- #define DATA_START 0x10000000
-
- /* The text segment always starts at a fixed address.
- This way we don't need to have a label _start defined. */
- #define TEXT_START 0
-
- #define VALBITS 26
- #define GCTYPEBITS 5
-
- /* Taking a pointer to a char casting it as int pointer */
- /* and then taking the int which the int pointer points to */
- /* is practically guaranteed to give erroneous results */
-
- #define NEED_ERRNO
-
- #define SKTPAIR
-
- /* BSD has BSTRING. */
-
- #define BSTRING
-
- /* Special switches to give the C compiler. */
-
- #define C_SWITCH_MACHINE -Dalloca=_Alloca
-
- /* Don't attempt to relabel some of the data as text when dumping.
- It does not work because their virtual addresses are not consecutive.
- This enables us to use the standard crt0.o. */
-
- #define NO_REMAP
-