| /* 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 |
| |
