blob: 2b1d23ce6a8c057f1bbd03d7e86a176c80d594a9 [file] [log] [blame]
/* Definitions of target machine for GNU compiler, for a 3b1 using GAS.
Copyright (C) 1987, 1988 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC 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 2, or (at your option)
any later version.
GNU CC 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 CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "m68k/m68k.h"
/* See m68k.h. 0 means 68000 with no 68881. */
#define TARGET_DEFAULT 0
/* Don't try using XFmode. */
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE 64
/* Define __HAVE_68881 in preprocessor only if -m68881 is specified.
This will control the use of inline 68881 insns in certain macros.
Also inform the program which CPU this is for. */
#define CPP_SPEC "%{m68881:-D__HAVE_68881__} \
%{!ansi:%{m68020:-Dmc68020}%{mc68020:-Dmc68020}%{!mc68020:%{!m68020:-Dmc68010}}}"
/* -m68020 requires special flags to the assembler. */
#define ASM_SPEC \
"%{m68020:-mc68020}%{mc68020:-mc68020}%{!mc68020:%{!m68020:-mc68010}}"
/* Names to predefine in the preprocessor for this target machine. */
#define CPP_PREDEFINES "-Dmc68000 -Dmc68k -Dunix -Dunixpc -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
/* This is (not really) BSD, so (but) it wants DBX format. */
#define DBX_DEBUGGING_INFO
/* Brain damage. */
#define SCCS_DIRECTIVE
/* Specify how to pad function arguments.
Value should be `upward', `downward' or `none'.
Same as the default, except no padding for large or variable-size args. */
#define FUNCTION_ARG_PADDING(MODE, TYPE) \
(((MODE) == BLKmode \
? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \
&& int_size_in_bytes (TYPE) < PARM_BOUNDARY / BITS_PER_UNIT) \
: GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
? downward : none)
/* Every structure or union's size must be a multiple of 2 bytes. */
#define STRUCTURE_SIZE_BOUNDARY 16
/* Generate calls to memcpy, memcmp and memset. */
#define TARGET_MEM_FUNCTIONS