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Diffstat (limited to 'src/m-convex.h')
| -rw-r--r-- | src/m-convex.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/m-convex.h b/src/m-convex.h new file mode 100644 index 00000000000..f958276d0fc --- /dev/null +++ b/src/m-convex.h @@ -0,0 +1,172 @@ +/* m- file for convex C1-C3. + Copyright (C) 1987, 1989 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. */ + +/* #define 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) (c) + +/* Now define a symbol for the cpu type, if your compiler + does not define it automatically. */ + +/* convex already defined... */ + +/* Use type int rather than a union, to represent Lisp_Object */ +/* This is desirable for most machines. */ + +#define NO_UNION_TYPE + +/* crt0.c should use the vax-bsd style of entry, with no dummy args. */ + +#define CRT0_DUMMIES + +/* crt0.c should define a symbol `start' and do .globl with a dot. */ + +#define DOT_GLOBAL_START + +/* Data type of load average, as read out of kmem. */ + +#define LOAD_AVE_TYPE double + +/* Convert that into an integer that is 100 for a load average of 1.0 */ + +#define LOAD_AVE_CVT(x) (int) ((x) * 100.0) + +/* 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. */ + +/* #define 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. */ + +/* #define C_ALLOCA */ +#define HAVE_ALLOCA + +#ifdef __GNUC__ +#define alloca __builtin_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 */ + +/* Addresses on the Convex have the high bit set. */ + +#define DATA_SEG_BITS 0x80000000 + +/* Right shift is logical shift, so use this to sign-extend a lisp int. */ + +#define VSIGNBIT (1 << (VALBITS - 1)) +#define VALLBITS ((1 << VALBITS) - 1) +#define XINT(a) ((int) ((((a) & VALLBITS) ^ VSIGNBIT) - VSIGNBIT)) + +/* Convex uses a special version of unexec. */ + +#define UNEXEC unexconvex.o + +/* you gotta define 'COFF' for post 6.1 unexec. */ + +#define COFF +#define TEXT_START 0x80001000 + +/* Posix stuff for Convex OS 8.1 and up. */ + +#define C_SWITCH_MACHINE -pcc +#define LD_SWITCH_MACHINE \ + -e__start -L /usr/lib \ + '-A__iob=___ap$$iob' '-A_use_libc_sema=___ap$$use_libc_sema' + +/* Use setsid when starting up inferiors. */ +#define HAVE_SETSID + +/* Use <dirent.h>. */ +#define SYSV_SYSTEM_DIR +#define HAVE_CLOSEDIR + +#ifdef _POSIX_SOURCE + +/* These symbols have been undefined to advance the state of the art. */ + +#define S_IFMT _S_IFMT +#define S_IFDIR _S_IFDIR + +#define S_IREAD _S_IREAD +#define S_IWRITE _S_IWRITE +#define S_IEXEC _S_IEXEC + +#endif + +/* Ptys may start below ptyp0; call a routine to hunt for where. */ + +#undef FIRST_PTY_LETTER +#define FIRST_PTY_LETTER first_pty_letter() + +#if 0 +/* + * Force a K&R compilation and libraries with the Convex V 4.0 C compiler + */ +#define C_SWITCH_MACHINE -pcc +#define LIB_STANDARD -lc_old +#define LIBS_MACHINE -lC2_old +#define LD_SWITCH_MACHINE -X -NL -fn -Enoposix -A__iob=___ap\$$iob \ + -A_use_libc_sema=___ap\$$use_libc_sema -L /usr/lib +#endif |