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Annotation of GNUtools/emacs/src/m-vax.h, revision 1.1.1.1

1.1       root        1: /* m- file for vax.
                      2:    Copyright (C) 1985, 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: /* Vax is not big-endian: lowest numbered byte is least significant. */
                     31: 
                     32: /* #undef BIG_ENDIAN */
                     33: 
                     34: /* Define how to take a char and sign-extend into an int.
                     35:    On machines where char is signed, this is a no-op.  */
                     36: 
                     37: #define SIGN_EXTEND_CHAR(c) (c)
                     38: 
                     39: /* #define vax    -- appears to be done automatically  */
                     40: 
                     41: /* Use type int rather than a union, to represent Lisp_Object */
                     42: 
                     43: #define NO_UNION_TYPE
                     44: 
                     45: /* crt0.c should use the vax-bsd style of entry, with no dummy args.  */
                     46: 
                     47: #define CRT0_DUMMIES
                     48: 
                     49: /* crt0.c should define a symbol `start' and do .globl with a dot.  */
                     50: 
                     51: #define DOT_GLOBAL_START
                     52: 
                     53: #ifdef BSD
                     54: /* USG systems I know of running on Vaxes do not actually
                     55:    support the load average, so disable it for them.  */
                     56: 
                     57: /* Data type of load average, as read out of kmem.  */
                     58: 
                     59: #define LOAD_AVE_TYPE double
                     60: 
                     61: /* Convert that into an integer that is 100 for a load average of 1.0  */
                     62: 
                     63: #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
                     64: 
                     65: #endif /* BSD */
                     66: 
                     67: #ifdef VMS
                     68: 
                     69: /* Data type of load average, as read out of driver.  */
                     70: 
                     71: #define LOAD_AVE_TYPE float
                     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) ((x) * 100.0))
                     76: 
                     77: #endif /* VMS */
                     78: 
                     79: /* Vax sysV has alloca in the PW library.  */
                     80: 
                     81: #ifdef USG
                     82: #define LIB_STANDARD -lPW -lc
                     83: #define HAVE_ALLOCA
                     84: 
                     85: /* There is some bug in unexec in for usg 5.2 on a vax
                     86:    which nobody who runs such a system has yet tracked down. */
                     87: #ifndef USG5_0
                     88: #define NO_REMAP
                     89: #endif /* USG 5_0 */
                     90: 
                     91: #define TEXT_START 0
                     92: #endif /* USG */
                     93: 
                     94: #ifdef BSD
                     95: #define HAVE_ALLOCA
                     96: #endif /* BSD */
                     97: 
                     98: #ifdef VMS
                     99: #define C_ALLOCA
                    100: #endif
                    101: 
                    102: #ifdef ultrix
                    103: #define BROKEN_O_NONBLOCK
                    104: #endif

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