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

1.1       root        1: /* m- file for pyramid with mips processor
                      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: /* 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: 
                     39: #define NO_ARG_ARRAY
                     40: 
                     41: #undef WORD_MACHINE
                     42: 
                     43: 
                     44: /* XINT must explicitly sign extend */
                     45: 
                     46: #define EXPLICIT_SIGN_EXTEND
                     47: 
                     48: /* Define how to take a char and sign-extend into an int.
                     49:    On machines where char is signed, this is a no-op.  */
                     50: 
                     51: 
                     52: #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
                     53: 
                     54: 
                     55: /* pyramid preprocessor defines "pyr", however the following is clearer */
                     56: #define pyramid
                     57: 
                     58: /* Don't use the union types any more.  They were used until Emacs 17.45.  */
                     59: 
                     60: #define NO_UNION_TYPE
                     61: 
                     62: /* Data type of load average, as read out of kmem.  */
                     63: 
                     64: #define LOAD_AVE_TYPE double           /* might be long TODO */
                     65: 
                     66: /* Convert that into an integer that is 100 for a load average of 1.0  */
                     67: 
                     68: #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
                     69: 
                     70: /* Don't use the ordinary -g for debugging in cc */
                     71: /* Define CANNOT_DUMP on machines where unexec does not work.
                     72:    Then the function dump-emacs will not be defined
                     73:    and temacs will do (load "loadup") automatically unless told otherwise.  */
                     74: 
                     75: #define CANNOT_DUMP
                     76: 
                     77: /* Define C_ALLOCA if this machine does not support a true alloca
                     78:    and the one written in C should be used instead.
                     79:    Define HAVE_ALLOCA to say that the system provides a properly
                     80:    working alloca function and it should be used.
                     81:    Define neither one if an assembler-language alloca
                     82:    in the file alloca.s should be used.  */
                     83: 
                     84: /* these are needed! */
                     85: #define HAVE_ALLOCA
                     86: #define SYSTEM_MALLOC
                     87: 
                     88: /*
                     89:  * most of the rest is from m-mips.h
                     90:  * but there was too much in that that we didn't want
                     91:  */
                     92: /* #define NO_REMAP /* don't adjust data_start */
                     93: 
                     94: 
                     95: /* The standard definitions of these macros would work ok,
                     96:    but these are faster because the constants are short.  */
                     97: 
                     98: #define XUINT(a) (((unsigned)(a) << INTBITS-VALBITS) >> INTBITS-VALBITS)
                     99: 
                    100: #define XSET(var, type, ptr) \
                    101:    ((var) = ((int)(type) << VALBITS) + (((unsigned) (ptr) << INTBITS-VALBITS) >> INTBITS-VALBITS))
                    102: 
                    103: #define XSETINT(a, b)  XSET(a, XTYPE(a), b)
                    104: #define XSETUINT(a, b) XSET(a, XTYPE(a), b)
                    105: #define XSETPNTR(a, b) XSET(a, XTYPE(a), b)
                    106: 
                    107: #define XUNMARK(a) ((a) = (((unsigned)(a) << INTBITS-GCTYPEBITS-VALBITS) >> INTBITS-GCTYPEBITS-VALBITS))
                    108: 
                    109: /* Cancel certain parts of standard sysV support.  */
                    110: #undef NONSYSTEM_DIR_LIBRARY
                    111: #define SYSV_SYSTEM_DIR
                    112: #undef static
                    113: 
                    114: /* Don't try to use SIGIO or FIONREAD even though they are defined.  */
                    115: #undef SIGIO
                    116: #define BROKEN_FIONREAD
                    117: 
                    118: /* Describe special kernel features.  */
                    119: 
                    120: #define HAVE_SYSVIPC
                    121: 
                    122: #define C_DEBUG_SWITCH -gx
                    123: 

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