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Annotation of 43BSDReno/contrib/emacs-18.55/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 distributed in the hope that it will be useful,
        !            10: but WITHOUT ANY WARRANTY.  No author or distributor
        !            11: accepts responsibility to anyone for the consequences of using it
        !            12: or for whether it serves any particular purpose or works at all,
        !            13: unless he says so in writing.  Refer to the GNU Emacs General Public
        !            14: License for full details.
        !            15: 
        !            16: Everyone is granted permission to copy, modify and redistribute
        !            17: GNU Emacs, but only under the conditions described in the
        !            18: GNU Emacs General Public License.   A copy of this license is
        !            19: supposed to have been given to you along with GNU Emacs so you
        !            20: can know your rights and responsibilities.  It should be in a
        !            21: file named COPYING.  Among other things, the copyright notice
        !            22: and this notice must be preserved on all copies.  */
        !            23: 
        !            24: 
        !            25: /* The following three symbols give information on
        !            26:  the size of various data types.  */
        !            27: 
        !            28: #define SHORTBITS 16           /* Number of bits in a short */
        !            29: 
        !            30: #define INTBITS 32             /* Number of bits in an int */
        !            31: 
        !            32: #define LONGBITS 32            /* Number of bits in a long */
        !            33: 
        !            34: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
        !            35:    is the most significant byte.  */
        !            36: 
        !            37: #define BIG_ENDIAN
        !            38: 
        !            39: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
        !            40:  * group of arguments and treat it as an array of the arguments.  */
        !            41: 
        !            42: #ifdef ALLIANT_1
        !            43: #define NO_ARG_ARRAY
        !            44: #endif
        !            45: 
        !            46: /* Define WORD_MACHINE if addresses and such have
        !            47:  * to be corrected before they can be used as byte counts.  */
        !            48: 
        !            49: #undef WORD_MACHINE
        !            50: 
        !            51: /* Define how to take a char and sign-extend into an int.
        !            52:    On machines where char is signed, this is a no-op.  */
        !            53: 
        !            54: #define SIGN_EXTEND_CHAR(c) (c)
        !            55: 
        !            56: /* Now define a symbol for the cpu type, if your compiler
        !            57:    does not define it automatically:
        !            58:    vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
        !            59:    are the ones defined so far.  */
        !            60: 
        !            61: #define ALLIANT
        !            62: 
        !            63: /* Use type int rather than a union, to represent Lisp_Object */
        !            64: /* This is desirable for most machines.  */
        !            65: 
        !            66: #define NO_UNION_TYPE
        !            67: 
        !            68: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
        !            69:    the 24-bit bit field into an int.  In other words, if bit fields
        !            70:    are always unsigned.
        !            71: 
        !            72:    If you use NO_UNION_TYPE, this flag does not matter.  */
        !            73: /* On Alliants, bitfields are unsigned. */
        !            74: 
        !            75: #define EXPLICIT_SIGN_EXTEND
        !            76: 
        !            77: /* No load average information available for Alliants. */
        !            78: 
        !            79: #undef LOAD_AVE_TYPE
        !            80: #undef LOAD_AVE_CVT
        !            81: 
        !            82: /* Define CANNOT_DUMP on machines where unexec does not work.
        !            83:    Then the function dump-emacs will not be defined
        !            84:    and temacs will do (load "loadup") automatically unless told otherwise.  */
        !            85: 
        !            86: #undef CANNOT_DUMP
        !            87: 
        !            88: /* Define VIRT_ADDR_VARIES if the virtual addresses of
        !            89:    pure and impure space as loaded can vary, and even their
        !            90:    relative order cannot be relied on.
        !            91: 
        !            92:    Otherwise Emacs assumes that text space precedes data space,
        !            93:    numerically.  */
        !            94: 
        !            95: #undef VIRT_ADDR_VARIES
        !            96: 
        !            97: /* Define C_ALLOCA if this machine does not support a true alloca
        !            98:    and the one written in C should be used instead.
        !            99:    Define HAVE_ALLOCA to say that the system provides a properly
        !           100:    working alloca function and it should be used.
        !           101:    Define neither one if an assembler-language alloca
        !           102:    in the file alloca.s should be used.  */
        !           103: 
        !           104: #undef C_ALLOCA
        !           105: #define HAVE_ALLOCA
        !           106: 
        !           107: #ifdef ALLIANT_1
        !           108: #define C_ALLOCA
        !           109: #undef HAVE_ALLOCA
        !           110: #endif /* ALLIANT_1 */
        !           111: 
        !           112: /* Define NO_REMAP if memory segmentation makes it not work well
        !           113:    to change the boundary between the text section and data section
        !           114:    when Emacs is dumped.  If you define this, the preloaded Lisp
        !           115:    code will not be sharable; but that's better than failing completely.  */
        !           116: /* Actually, Alliant CONCENTRIX does paging "right":
        !           117:    data pages are copy-on-write, which means that the pure data areas
        !           118:    are shared automatically and remapping is not necessary.  */
        !           119: 
        !           120: #define NO_REMAP
        !           121: 
        !           122: /* Alliant needs special crt0.o because system version is not reentrant */
        !           123: 
        !           124: #define START_FILES crt0.o
        !           125: 
        !           126: /* Alliant dependent code for dumping executing image.
        !           127:    See crt0.c code for alliant.  */
        !           128: 
        !           129: #define ADJUST_EXEC_HEADER {\
        !           130: extern int _curbrk, _setbrk;\
        !           131: _setbrk = _curbrk;\
        !           132: hdr.a_bss_addr = bss_start;\
        !           133: unexec_text_start = hdr.a_text_addr;}
        !           134: 
        !           135: /* cc screws up on long names.  Try making cpp replace them.  */
        !           136: 
        !           137: #ifdef ALLIANT_1
        !           138: #define Finsert_abbrev_table_description Finsert_abbrev_table_descrip
        !           139: #define internal_with_output_to_temp_buffer internal_with_output_to_tem
        !           140: #endif
        !           141: 
        !           142: /* "vector" is a typedef in /usr/include/machine/reg.h, so its use as
        !           143:    a variable name causes errors when compiling under ANSI C.  */
        !           144: 
        !           145: #define vector xxvector

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