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Annotation of GNUtools/emacs/src/m-tower32v3.h, revision 1.1

1.1     ! root        1: /* m- file for the NCR Tower 32 running System V.3.
        !             2:    Copyright (C) 1986 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU Emacs.
        !             5: 
        !             6: GNU Emacs is free software; you can redistribute it and/or modify
        !             7: it under the terms of the GNU General Public License as published by
        !             8: the Free Software Foundation; either version 1, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GNU Emacs is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public License for more details.
        !            15: 
        !            16: You should have received a copy of the GNU General Public License
        !            17: along with GNU Emacs; see the file COPYING.  If not, write to
        !            18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: 
        !            21: /* The following three symbols give information on
        !            22:  the size of various data types.  */
        !            23: 
        !            24: #define SHORTBITS 16           /* Number of bits in a short */
        !            25: 
        !            26: #define INTBITS 32             /* Number of bits in an int */
        !            27: 
        !            28: #define LONGBITS 32            /* Number of bits in a long */
        !            29: 
        !            30: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
        !            31:    is the most significant byte.  */
        !            32: 
        !            33: #define BIG_ENDIAN
        !            34: 
        !            35: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
        !            36:  * group of arguments and treat it as an array of the arguments.  */
        !            37: 
        !            38: /* #define NO_ARG_ARRAY */
        !            39: 
        !            40: /* Define WORD_MACHINE if addresses and such have
        !            41:  * to be corrected before they can be used as byte counts.  */
        !            42: 
        !            43: /* #define WORD_MACHINE */
        !            44: 
        !            45: /* Define how to take a char and sign-extend into an int.
        !            46:    On machines where char is signed, this is a no-op.  */
        !            47: 
        !            48: #define SIGN_EXTEND_CHAR(c) (c)
        !            49: 
        !            50: /* Now define a symbol for the cpu type, if your compiler
        !            51:    does not define it automatically:
        !            52:    vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
        !            53:    are the ones defined so far.  */
        !            54: #define m68000
        !            55: 
        !            56: /* Use type int rather than a union, to represent Lisp_Object */
        !            57: /* This is desirable for most machines.  */
        !            58: 
        !            59: #define NO_UNION_TYPE
        !            60: 
        !            61: /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
        !            62:    the 24-bit bit field into an int.  In other words, if bit fields
        !            63:    are always unsigned.
        !            64: 
        !            65:    If you use NO_UNION_TYPE, this flag does not matter.  */
        !            66: 
        !            67: #define EXPLICIT_SIGN_EXTEND
        !            68: 
        !            69: /* Data type of load average, as read out of kmem.  */
        !            70: 
        !            71: /* #define LOAD_AVE_TYPE long */
        !            72: 
        !            73: /* Convert that into an integer that is 100 for a load average of 1.0  */
        !            74: 
        !            75: /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */
        !            76: 
        !            77: /* Define CANNOT_DUMP on machines where unexec does not work.
        !            78:    Then the function dump-emacs will not be defined
        !            79:    and temacs will do (load "loadup") automatically unless told otherwise.  */
        !            80: 
        !            81: /* #define CANNOT_DUMP */
        !            82: 
        !            83: /* Define VIRT_ADDR_VARIES if the virtual addresses of
        !            84:    pure and impure space as loaded can vary, and even their
        !            85:    relative order cannot be relied on.
        !            86: 
        !            87:    Otherwise Emacs assumes that text space precedes data space,
        !            88:    numerically.  */
        !            89: 
        !            90: /* #define VIRT_ADDR_VARIES */
        !            91: 
        !            92: /* Define C_ALLOCA if this machine does not support a true alloca
        !            93:    and the one written in C should be used instead.
        !            94:    Define HAVE_ALLOCA to say that the system provides a properly
        !            95:    working alloca function and it should be used.
        !            96:    Define neither one if an assembler-language alloca
        !            97:    in the file alloca.s should be used.  */
        !            98: 
        !            99: #ifdef __GNUC__
        !           100: #define HAVE_ALLOCA
        !           101: #define alloca __builtin_alloca
        !           102: #define C_OPTIMIZE_SWITCH -O -fstrength-reduce -fomit-frame-pointer
        !           103: #define LIB_STANDARD -lc /lib/crtn.o
        !           104: #else
        !           105: /* This section is correct if you do *not* change src/ymakefile so that
        !           106:    CFLAGS includes C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH.  */
        !           107: #define HAVE_ALLOCA
        !           108: #define C_DEBUG_SWITCH -g -O0
        !           109: #define LIB_STANDARD -lc -lPW /lib/crtn.o
        !           110: /* This section is correct if you do enable C_OPTIMIZE_SWITCH.  */
        !           111: /* #define C_ALLOCA */
        !           112: /* #define STACK_DIRECTION -1 */
        !           113: /* #define C_OPTIMIZE_SWITCH -O2 */
        !           114: /* #define LIB_STANDARD -lc /lib/crtn.o */
        !           115: #endif
        !           116: 
        !           117: /* The OS maps the data section far away from the text section.  */
        !           118: #define NO_REMAP
        !           119: #define TEXT_START 0
        !           120: #undef static
        !           121: #define START_FILES pre-crt0.o /lib/crt1.o
        !           122: 
        !           123: /* This is needed since many Tower models start the data/bss segment at
        !           124:    an address as large as 0x2000000.  */
        !           125: #define VALBITS 26
        !           126: #define GCTYPEBITS 5
        !           127: 
        !           128: /* The OS has an implementation of symlinks that is semantically different
        !           129:    from BSD, but for some silly reason it partly has the same syntax.  */
        !           130: #undef S_IFLNK
        !           131: 
        !           132: /* The OS needs stream.h+ptem.h included in sysdep.c.  */
        !           133: #define NO_SIOCTL_H
        !           134: #define NEED_PTEM_H

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