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Annotation of GNUtools/emacs/src/m-gec63.h, revision 1.1.1.1

1.1       root        1: /* m- file for gec63
                      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: /* GEC63 is big-endian: lowest numbered byte is most significant. */
                     31: 
                     32: #define 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)<<24)>>24)
                     38: 
                     39: /* Say this machine is a 68000 */
                     40: 
                     41: #define gec63
                     42: 
                     43: /* Use an int to represent Lisp_Object */
                     44: 
                     45: #define NO_UNION_TYPE
                     46: 
                     47: /* GEC63 has alloca in the PW/ux63 library.  */
                     48: #define LIB_STANDARD -lPW -lc
                     49: #define HAVE_ALLOCA
                     50: 
                     51: /* Do not define LOAD_AVE_TYPE or LOAD_AVE_CVT
                     52:    since there is no /dev/kmem */
                     53: 
                     54: #undef ADDR_CORRECT(x)
                     55: #define NO_ARG_ARRAY
                     56: 
                     57: #undef TERMCAP
                     58: #define TERMINFO
                     59: 
                     60: /* Define sizes of portions of a Lisp_Object.  */
                     61: #define VALBITS 22
                     62: #define GCTYPEBITS 5
                     63: 
                     64: #define VALAMASK (((1<<VALBITS) - 1)| 0xF0000000L)
                     65: 
                     66: #define XTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
                     67: #define XSETTYPE(a, b) ((a)  =  ((a) & VALAMASK)  +  ((int)(b) << VALBITS))
                     68: 
                     69: #define XPNTR(a) ((a) & VALAMASK)
                     70: #define XSETPNTR(a, b) ((a) = ((a) & ~VALAMASK)  +  ((b) & VALAMASK))
                     71: 
                     72: #define XSET(var, type, ptr) \
                     73:    ((var) = ((int)(type) << VALBITS) + ((int) (ptr) & VALAMASK))
                     74: 
                     75: /* Move some garbage-collector flag bits to different bit positions.  */
                     76: #define ARRAY_MARK_FLAG (1 << 27)
                     77: #define DONT_COPY_FLAG (1 << 26)
                     78: 
                     79: #define NO_REMAP

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