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Annotation of 43BSDReno/contrib/emacs-18.55/src/m-hp9000s800.h, revision 1.1

1.1     ! root        1: /* m- file for hp9000 series 800 machines.
        !             2:    Copyright (C) 1987 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU Emacs.
        !             5: 
        !             6: GNU Emacs is distributed in the hope that it will be useful,
        !             7: but WITHOUT ANY WARRANTY.  No author or distributor
        !             8: accepts responsibility to anyone for the consequences of using it
        !             9: or for whether it serves any particular purpose or works at all,
        !            10: unless he says so in writing.  Refer to the GNU Emacs General Public
        !            11: License for full details.
        !            12: 
        !            13: Everyone is granted permission to copy, modify and redistribute
        !            14: GNU Emacs, but only under the conditions described in the
        !            15: GNU Emacs General Public License.   A copy of this license is
        !            16: supposed to have been given to you along with GNU Emacs so you
        !            17: can know your rights and responsibilities.  It should be in a
        !            18: file named COPYING.  Among other things, the copyright notice
        !            19: and this notice must be preserved on all copies.  */
        !            20: 
        !            21: 
        !            22: /* The following three symbols give information on
        !            23:  the size of various data types.  */
        !            24: 
        !            25: #define SHORTBITS 16           /* Number of bits in a short */
        !            26: 
        !            27: #define INTBITS 32             /* Number of bits in an int */
        !            28: 
        !            29: #define LONGBITS 32            /* Number of bits in a long */
        !            30: 
        !            31: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
        !            32:    is the most significant byte.  */
        !            33: 
        !            34: #define BIG_ENDIAN
        !            35: 
        !            36: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
        !            37:  * group of arguments and treat it as an array of the arguments.  */
        !            38: 
        !            39: #define NO_ARG_ARRAY
        !            40: 
        !            41: /* Define WORD_MACHINE if addresses and such have
        !            42:  * to be corrected before they can be used as byte counts.  */
        !            43: 
        !            44: #undef WORD_MACHINE
        !            45: 
        !            46: /* Define how to take a char and sign-extend into an int.
        !            47:    On machines where char is signed, this is a no-op.  */
        !            48: 
        !            49: #define SIGN_EXTEND_CHAR(c) (c)
        !            50: 
        !            51: /* Now define a symbol for the cpu type, if your compiler
        !            52:    does not define it automatically:
        !            53:    Ones defined so far include vax, m68000, ns16000, pyramid,
        !            54:    orion, tahoe, APOLLO and many others */
        !            55: #ifndef hp9000s800
        !            56: #      define hp9000s800
        !            57: #endif
        !            58: 
        !            59: /* Use type int rather than a union, to represent Lisp_Object */
        !            60: /* This is desirable for most machines.  */
        !            61: 
        !            62: #define NO_UNION_TYPE
        !            63: 
        !            64: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
        !            65:    the 24-bit bit field into an int.  In other words, if bit fields
        !            66:    are always unsigned.
        !            67: 
        !            68:    If you use NO_UNION_TYPE, this flag does not matter.  */
        !            69: 
        !            70: #define EXPLICIT_SIGN_EXTEND
        !            71: 
        !            72: /* Data type of load average, as read out of kmem.  */
        !            73: 
        !            74: #define LOAD_AVE_TYPE double
        !            75: 
        !            76: /* Convert that into an integer that is 100 for a load average of 1.0  */
        !            77: 
        !            78: #define LOAD_AVE_CVT(x) ((int) (x * 100.0))
        !            79: 
        !            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: #define 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: #define C_ALLOCA
        !           104: /* #define HAVE_ALLOCA */
        !           105: 
        !           106: /* the data segment on this machine always starts at address 0x40000000. */
        !           107: 
        !           108: #define DATA_SEG_BITS 0x40000000
        !           109: 
        !           110: #define VALBITS    26
        !           111: #define GCTYPEBITS 5
        !           112: 
        !           113: #define DATA_START    0x40000000
        !           114: #define TEXT_START    0x00000000
        !           115: 
        !           116: #define STACK_DIRECTION 1 
        !           117: 
        !           118: /* Define NO_REMAP if memory segmentation makes it not work well
        !           119:    to change the boundary between the text section and data section
        !           120:    when Emacs is dumped.  If you define this, the preloaded Lisp
        !           121:    code will not be sharable; but that's better than failing completely.  */
        !           122: 
        !           123: #define NO_REMAP
        !           124: 
        !           125: /* This machine requires completely different unexec code
        !           126:    which lives in a separate file.  Specify the file name.  */
        !           127: 
        !           128: #define UNEXEC unexhp9k800.o
        !           129: 
        !           130: #define LIBS_MACHINE
        !           131: #define LIBS_DEBUG
        !           132: 
        !           133: /* Define NEED_BSDTTY if you have such. */
        !           134: 
        !           135: #define NEED_BSDTTY
        !           136: 
        !           137: /* The standard definitions of these macros would work ok,
        !           138:    but these are faster because the constants are short. */
        !           139:    
        !           140: 
        !           141: #define XUINT(a) (((unsigned)(a) << INTBITS-VALBITS) >> INTBITS-VALBITS)
        !           142: 
        !           143: #define XSET(var, type, ptr) \
        !           144:    ((var) = ((int)(type) << VALBITS) + (((unsigned) (ptr) << INTBITS-VALBITS) >> INTBITS-VALBITS))
        !           145: 
        !           146: #define XSETINT(a, b)  XSET(a, XTYPE(a), b)
        !           147: #define XSETUINT(a, b) XSET(a, XTYPE(a), b)
        !           148: #define XSETPNTR(a, b) XSET(a, XTYPE(a), b)
        !           149: #define XMARKBIT(a) ((a) < 0)
        !           150: #define XSETMARKBIT(a,b) ((a) = ((b) ? (a)|MARKBIT : (a) & ~MARKBIT))
        !           151: #define XUNMARK(a) ((a) = (((a) << INTBITS-GCTYPEBITS-VALBITS) >> INTBITS-GCTYPEBITS-VALBITS))
        !           152: 
        !           153: /* The symbol in the kernel where the load average is found
        !           154:    is named _avenrun.  At this time there are two major flavors
        !           155:    of hp-ux (there is the s800 and s300 (s200) flavors).  The
        !           156:    differences are thusly moved to the corresponding m- file.
        !           157: */
        !           158: 
        !           159: /* no underscore please */
        !           160: #define LDAV_SYMBOL "avenrun"
        !           161: #define CPTIME_SYMBOL "cp_time"
        !           162: #define DKXFER_SYMBOL "dk_xfer"
        !           163: 
        !           164: /* In hpux, for unknown reasons, S_IFLNK is defined even though
        !           165:    symbolic links do not exist.
        !           166:    Make sure our conditionals based on S_IFLNK are not confused.
        !           167: 
        !           168:    Here we assume that stat.h is included before config.h
        !           169:    so that we can override it here.  */
        !           170: 
        !           171: #undef S_IFLNK
        !           172: 
        !           173: /* Define the BSTRING functions in terms of the sysV functions. */
        !           174: 
        !           175: #define bcopy(a,b,s)   memcpy (b,a,s)
        !           176: #define bzero(a,s)     memset (a,0,s)
        !           177: #define bcmp           memcmp
        !           178: 
        !           179: /* On USG systems these have different names. */
        !           180: 
        !           181: #define index strchr
        !           182: #define rindex strrchr
        !           183: 
        !           184: /* Include the file bsdtty.h, since job control exists.  */
        !           185: #define NEED_BSDTTY

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