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Diffstat (limited to 'src/m-mips.h')
| -rw-r--r-- | src/m-mips.h | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/m-mips.h b/src/m-mips.h new file mode 100644 index 00000000000..85120e178eb --- /dev/null +++ b/src/m-mips.h @@ -0,0 +1,241 @@ +/* m- file for Mips machines. + Copyright (C) 1987 Free Software Foundation, Inc. + +This file is part of GNU Emacs. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 1, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Emacs; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +/* The following three symbols give information on + the size of various data types. */ + +#define SHORTBITS 16 /* Number of bits in a short */ + +#define INTBITS 32 /* Number of bits in an int */ + +#define LONGBITS 32 /* Number of bits in a long */ + +/* Define BIG_ENDIAN iff lowest-numbered byte in a word + is the most significant byte. */ + +#define BIG_ENDIAN + +/* Define NO_ARG_ARRAY if you cannot take the address of the first of a + * group of arguments and treat it as an array of the arguments. */ + +#define NO_ARG_ARRAY + +/* Define WORD_MACHINE if addresses and such have + * to be corrected before they can be used as byte counts. */ + +#undef WORD_MACHINE + +/* Define how to take a char and sign-extend into an int. + On machines where char is signed, this is a no-op. */ + +#define SIGN_EXTEND_CHAR(c) ((signed char)(c)) + +/* Now define a symbol for the cpu type, if your compiler + does not define it automatically: + Ones defined so far include vax, m68000, ns16000, pyramid, + orion, tahoe, APOLLO and many others */ +#ifndef mips +# define mips +#endif + +/* Use type int rather than a union, to represent Lisp_Object */ +/* This is desirable for most machines. */ + +#define NO_UNION_TYPE + +/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend + the 24-bit bit field into an int. In other words, if bit fields + are always unsigned. + + If you use NO_UNION_TYPE, this flag does not matter. */ + +#define EXPLICIT_SIGN_EXTEND + +/* Data type of load average, as read out of kmem. */ + +#define LOAD_AVE_TYPE long + +/* Convert that into an integer that is 100 for a load average of 1.0 */ + +#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0) + +/* Define CANNOT_DUMP on machines where unexec does not work. + Then the function dump-emacs will not be defined + and temacs will do (load "loadup") automatically unless told otherwise. */ + +#undef CANNOT_DUMP + +/* Define VIRT_ADDR_VARIES if the virtual addresses of + pure and impure space as loaded can vary, and even their + relative order cannot be relied on. + + Otherwise Emacs assumes that text space precedes data space, + numerically. */ + +/* #define VIRT_ADDR_VARIES */ + +/* Define C_ALLOCA if this machine does not support a true alloca + and the one written in C should be used instead. + Define HAVE_ALLOCA to say that the system provides a properly + working alloca function and it should be used. + Define neither one if an assembler-language alloca + in the file alloca.s should be used. */ + +#ifdef __GNUC__ +#define HAVE_ALLOCA +#else +#define C_ALLOCA +#endif + +/* Define NO_REMAP if memory segmentation makes it not work well + to change the boundary between the text section and data section + when Emacs is dumped. If you define this, the preloaded Lisp + code will not be sharable; but that's better than failing completely. */ + +#define NO_REMAP + +/* This machine requires completely different unexec code + which lives in a separate file. Specify the file name. */ + +#define UNEXEC unexmips.o + +/* Describe layout of the address space in an executing process. */ + +#define TEXT_START 0x400000 +#define DATA_START 0x800000 + +/* Alter some of the options used when linking. */ + +#ifdef BSD + +/* Supposedly the dec machine doesn't have this library. + #define LIBS_MACHINE -lmld */ + +#define LD_SWITCH_MACHINE -D 800000 +#define LIBS_DEBUG + +#define LINKER /bsd43/bin/ld + +#else /* not BSD */ +#ifdef NEWSOS5 + +#define LIBS_MACHINE -lmld +#define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o +#define LIB_STANDARD -lsocket -lnsl -lc /usr/ccs/lib/crtn.o /usr/ccs/lib/values-Xt.o + +#ifdef __GNUC__ +#define C_DEBUG_SWITCH -g +#define C_OPTIMIZE_SWITCH -g -O +#define LD_SWITCH_MACHINE -g -Xlinker -D -Xlinker 800000 +#else +#define C_DEBUG_SWITCH -g3 +#define C_OPTIMIZE_SWITCH -g3 +#define LD_SWITCH_MACHINE -g3 -D 800000 +#endif + +#else /* not NEWSOS5 */ + +#define LIBS_MACHINE -lmld +#define LD_SWITCH_MACHINE -D 800000 -g3 +#define START_FILES pre-crt0.o /usr/lib/crt1.o +#define LIB_STANDARD -lbsd -lc /usr/lib/crtn.o +#define LIBS_TERMCAP -lcurses + +#define C_SWITCH_MACHINE -I/usr/include/bsd +#define C_DEBUG_SWITCH -O -g3 + +#if defined(HAVE_X_WINDOWS) && defined(HAVE_X11) +#define HAVE_VFORK /* Graciously provided by libX.a */ +#endif + +#endif /* not NEWSOS5 */ +#endif /* not BSD */ + +/* The standard definitions of these macros would work ok, + but these are faster because the constants are short. */ + +#define XUINT(a) (((unsigned)(a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) + +#define XSET(var, type, ptr) \ + ((var) = \ + ((int)(type) << VALBITS) \ + + (((unsigned) (ptr) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))) + +#define XSETINT(a, b) XSET(a, XTYPE(a), b) +#define XSETUINT(a, b) XSET(a, XTYPE(a), b) +#define XSETPNTR(a, b) XSET(a, XTYPE(a), b) + +#define XUNMARK(a) \ + ((a) = \ + (((unsigned)(a) << (INTBITS-GCTYPEBITS-VALBITS)) \ + >> (INTBITS-GCTYPEBITS-VALBITS))) + +#ifndef NEWSOS5 +#ifdef USG + +/* Cancel certain parts of standard sysV support. */ +#undef NONSYSTEM_DIR_LIBRARY +#define SYSV_SYSTEM_DIR +#undef static + +/* Don't try to use SIGIO or FIONREAD even though they are defined. */ +#undef SIGIO +#define BROKEN_FIONREAD + +/* Describe special kernel features. */ + +#define HAVE_SYSVIPC + +#define HAVE_TIMEVAL +#if defined(emacs) && !defined(INHIBIT_BSD_TIME) +#include <bsd/sys/time.h> +#endif + +/* #define HAVE_SELECT + The `select' in the system won't work for pipes, + so don't use it. */ + +#define HAVE_DUP2 +#define HAVE_GETWD +#define HAVE_GETTIMEOFDAY + +#define HAVE_PTYS +#define HAVE_SOCKETS + +#undef NOMULTIPLEJOBS +#define utimes utime /* Someone should check this. */ + +/* ??? */ +#define IRIS + +#endif /* USG */ + +#ifdef BSD +#define COFF +#define TERMINFO +#undef MAIL_USE_FLOCK /* Someone should check this. */ +#undef HAVE_UNION_WAIT +#endif /* BSD */ + +#endif /* not NEWSOS5 */ + +/* Load average requires special crocks. Version 19 has them. + For now, this avoids a bug. */ +#undef LOAD_AVE_TYPE |