diff options
author | Jim Blandy <[email protected]> | 1991-12-13 18:49:49 +0000 |
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committer | Jim Blandy <[email protected]> | 1991-12-13 18:49:49 +0000 |
commit | 20c428fd9d239eca0a835e3b0fe2629e789ce562 (patch) | |
tree | c9dc47c923acc0f7db3dd699bd7e38e7b20893cc /src/m/masscomp.h | |
parent | 20a8832d8461fec6001e0f9d09bbb4731c585a84 (diff) |
Initial revision
Diffstat (limited to 'src/m/masscomp.h')
-rw-r--r-- | src/m/masscomp.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/m/masscomp.h b/src/m/masscomp.h new file mode 100644 index 0000000000..f0970ed4a5 --- /dev/null +++ b/src/m/masscomp.h @@ -0,0 +1,150 @@ +/* machine description file for Masscomp 5000 series running RTU, ucb universe. + Copyright (C) 1986 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 line tells the configuration script what sort of + operating system this machine is likely to run. + USUAL-OPSYS="rtu" */ + +/* 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. */ + +#undef 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) (c) + +/* Now define a symbol for the cpu type, if your compiler + does not define it automatically: + vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO + are the ones defined so far. */ +/* Masscomp predefines mc68000. */ +#define m68000 mc68000 + +/* 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. */ + +#undef EXPLICIT_SIGN_EXTEND + +/* 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. */ + +#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. */ + +#undef 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. */ + +/* On return from a subroutine, the 68020 compiler restores old contents of + register variables relative to sp, so alloca() screws up such routines. + The following definitions should work on all Masscomps. On the MC-5500 + (a 68000) one can #undef C_ALLOCA and #define HAVE_ALLOCA. */ +#ifdef mc500 +#undef C_ALLOCA +#define HAVE_ALLOCA +#else +#define C_ALLOCA +#undef HAVE_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. */ + +#undef NO_REMAP + +/* crt0.c should use the vax-bsd style of entry, with a dummy arg. */ + +#define CRT0_DUMMIES bogus_fp, + +/* Name of file the to look in + for the kernel symbol table (for load average) */ + +#define KERNEL_FILE "/unix" + +/* This triggers some stuff to avoid a compiler bug */ + +#define MASSC_REGISTER_BUG + +/* Prevent -lg from being used for debugging. Not implemented? */ + +#define LIBS_DEBUG + +/* + * Define HAVE_TERMIO if the system provides sysV-style ioctls + * for terminal control. + */ + +#define HAVE_TERMIO + +/* Adjust a header field for the executable file about to be dumped. */ + +#define ADJUST_EXEC_HEADER \ + hdr.a_stamp = STAMP13; /* really want the latest stamp, whatever it is */ |