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- /* m-alliant.h Alliant machine running system version 2 or 3.
- Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
- Note that for version 1 of the Alliant system
- you should use m-alliant1.h instead of this file.
- Use m-alliant4.h for version 4.
-
- 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. */
-
- #ifdef ALLIANT_1
- #define NO_ARG_ARRAY
- #endif
-
- /* Define WORD_MACHINE if addresses and such have
- * to be corrected before they can be used as byte counts. */
-
- #undef 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) (c)
-
- /* Now define a symbol for the cpu type, if your compiler
- does not define it automatically:
- vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
- are the ones defined so far. */
-
- #define ALLIANT
-
- /* 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. */
- /* On Alliants, bitfields are unsigned. */
-
- #define EXPLICIT_SIGN_EXTEND
-
- /* No load average information available for Alliants. */
-
- #undef LOAD_AVE_TYPE
- #undef LOAD_AVE_CVT
-
- /* 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. */
-
- #undef 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. */
-
- #undef C_ALLOCA
- #define HAVE_ALLOCA
-
- #ifdef ALLIANT_1
- #define C_ALLOCA
- #undef HAVE_ALLOCA
- #endif /* ALLIANT_1 */
-
- /* Define NO_REMAP if memory segmentation makes it not work well
- to change the boundary between the text section and data section
- when Emacs is dumped. If you define this, the preloaded Lisp
- code will not be sharable; but that's better than failing completely. */
- /* Actually, Alliant CONCENTRIX does paging "right":
- data pages are copy-on-write, which means that the pure data areas
- are shared automatically and remapping is not necessary. */
-
- #define NO_REMAP
-
- /* Alliant needs special crt0.o because system version is not reentrant */
-
- #define START_FILES crt0.o
-
- /* Alliant dependent code for dumping executing image.
- See crt0.c code for alliant. */
-
- #define ADJUST_EXEC_HEADER {\
- extern int _curbrk, _setbrk;\
- _setbrk = _curbrk;\
- hdr.a_bss_addr = bss_start;\
- unexec_text_start = hdr.a_text_addr;}
-
- /* cc screws up on long names. Try making cpp replace them. */
-
- #ifdef ALLIANT_1
- #define Finsert_abbrev_table_description Finsert_abbrev_table_descrip
- #define internal_with_output_to_temp_buffer internal_with_output_to_tem
- #endif
-
- /* "vector" is a typedef in /usr/include/machine/reg.h, so its use as
- a variable name causes errors when compiling under ANSI C. */
-
- #define vector xxvector
-