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Annotation of GNUtools/emacs/src/m-alliant.h, revision 1.1

1.1     ! root        1: /* m-alliant.h  Alliant machine running system version 2 or 3.
        !             2:    Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
        !             3:    Note that for version 1 of the Alliant system
        !             4:    you should use m-alliant1.h instead of this file.
        !             5:    Use m-alliant4.h for version 4.
        !             6: 
        !             7: This file is part of GNU Emacs.
        !             8: 
        !             9: GNU Emacs is free software; you can redistribute it and/or modify
        !            10: it under the terms of the GNU General Public License as published by
        !            11: the Free Software Foundation; either version 1, or (at your option)
        !            12: any later version.
        !            13: 
        !            14: GNU Emacs is distributed in the hope that it will be useful,
        !            15: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            17: GNU General Public License for more details.
        !            18: 
        !            19: You should have received a copy of the GNU General Public License
        !            20: along with GNU Emacs; see the file COPYING.  If not, write to
        !            21: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            22: 
        !            23: 
        !            24: /* The following three symbols give information on
        !            25:  the size of various data types.  */
        !            26: 
        !            27: #define SHORTBITS 16           /* Number of bits in a short */
        !            28: 
        !            29: #define INTBITS 32             /* Number of bits in an int */
        !            30: 
        !            31: #define LONGBITS 32            /* Number of bits in a long */
        !            32: 
        !            33: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
        !            34:    is the most significant byte.  */
        !            35: 
        !            36: #define BIG_ENDIAN
        !            37: 
        !            38: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
        !            39:  * group of arguments and treat it as an array of the arguments.  */
        !            40: 
        !            41: #ifdef ALLIANT_1
        !            42: #define NO_ARG_ARRAY
        !            43: #endif
        !            44: 
        !            45: /* Define WORD_MACHINE if addresses and such have
        !            46:  * to be corrected before they can be used as byte counts.  */
        !            47: 
        !            48: #undef WORD_MACHINE
        !            49: 
        !            50: /* Define how to take a char and sign-extend into an int.
        !            51:    On machines where char is signed, this is a no-op.  */
        !            52: 
        !            53: #define SIGN_EXTEND_CHAR(c) (c)
        !            54: 
        !            55: /* Now define a symbol for the cpu type, if your compiler
        !            56:    does not define it automatically:
        !            57:    vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
        !            58:    are the ones defined so far.  */
        !            59: 
        !            60: #define ALLIANT
        !            61: 
        !            62: /* Use type int rather than a union, to represent Lisp_Object */
        !            63: /* This is desirable for most machines.  */
        !            64: 
        !            65: #define NO_UNION_TYPE
        !            66: 
        !            67: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
        !            68:    the 24-bit bit field into an int.  In other words, if bit fields
        !            69:    are always unsigned.
        !            70: 
        !            71:    If you use NO_UNION_TYPE, this flag does not matter.  */
        !            72: /* On Alliants, bitfields are unsigned. */
        !            73: 
        !            74: #define EXPLICIT_SIGN_EXTEND
        !            75: 
        !            76: /* No load average information available for Alliants. */
        !            77: 
        !            78: #undef LOAD_AVE_TYPE
        !            79: #undef LOAD_AVE_CVT
        !            80: 
        !            81: /* Define CANNOT_DUMP on machines where unexec does not work.
        !            82:    Then the function dump-emacs will not be defined
        !            83:    and temacs will do (load "loadup") automatically unless told otherwise.  */
        !            84: 
        !            85: #undef CANNOT_DUMP
        !            86: 
        !            87: /* Define VIRT_ADDR_VARIES if the virtual addresses of
        !            88:    pure and impure space as loaded can vary, and even their
        !            89:    relative order cannot be relied on.
        !            90: 
        !            91:    Otherwise Emacs assumes that text space precedes data space,
        !            92:    numerically.  */
        !            93: 
        !            94: #undef VIRT_ADDR_VARIES
        !            95: 
        !            96: /* Define C_ALLOCA if this machine does not support a true alloca
        !            97:    and the one written in C should be used instead.
        !            98:    Define HAVE_ALLOCA to say that the system provides a properly
        !            99:    working alloca function and it should be used.
        !           100:    Define neither one if an assembler-language alloca
        !           101:    in the file alloca.s should be used.  */
        !           102: 
        !           103: #undef C_ALLOCA
        !           104: #define HAVE_ALLOCA
        !           105: 
        !           106: #ifdef ALLIANT_1
        !           107: #define C_ALLOCA
        !           108: #undef HAVE_ALLOCA
        !           109: #endif /* ALLIANT_1 */
        !           110: 
        !           111: /* Define NO_REMAP if memory segmentation makes it not work well
        !           112:    to change the boundary between the text section and data section
        !           113:    when Emacs is dumped.  If you define this, the preloaded Lisp
        !           114:    code will not be sharable; but that's better than failing completely.  */
        !           115: /* Actually, Alliant CONCENTRIX does paging "right":
        !           116:    data pages are copy-on-write, which means that the pure data areas
        !           117:    are shared automatically and remapping is not necessary.  */
        !           118: 
        !           119: #define NO_REMAP
        !           120: 
        !           121: /* Alliant needs special crt0.o because system version is not reentrant */
        !           122: 
        !           123: #define START_FILES crt0.o
        !           124: 
        !           125: /* Alliant dependent code for dumping executing image.
        !           126:    See crt0.c code for alliant.  */
        !           127: 
        !           128: #define ADJUST_EXEC_HEADER {\
        !           129: extern int _curbrk, _setbrk;\
        !           130: _setbrk = _curbrk;\
        !           131: hdr.a_bss_addr = bss_start;\
        !           132: unexec_text_start = hdr.a_text_addr;}
        !           133: 
        !           134: /* cc screws up on long names.  Try making cpp replace them.  */
        !           135: 
        !           136: #ifdef ALLIANT_1
        !           137: #define Finsert_abbrev_table_description Finsert_abbrev_table_descrip
        !           138: #define internal_with_output_to_temp_buffer internal_with_output_to_tem
        !           139: #endif
        !           140: 
        !           141: /* "vector" is a typedef in /usr/include/machine/reg.h, so its use as
        !           142:    a variable name causes errors when compiling under ANSI C.  */
        !           143: 
        !           144: #define vector xxvector

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