1 /* Definitions of target machine for GNU compiler. HP 9000/200 68000 version. 2 Copyright (C) 1987, 1991 Free Software Foundation, Inc. 3 4 This file is part of GNU CC. 5 6 GNU CC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU CC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU CC; see the file COPYING. If not, write to 18 the Free Software Foundation, 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 #include "m68k/m68k.h" 22 23 /* See m68k.h. 0 means 68000 with no 68881. */ 24 25 #define TARGET_DEFAULT 0 26 27 /* Don't try using XFmode. */ 28 #undef LONG_DOUBLE_TYPE_SIZE 29 #define LONG_DOUBLE_TYPE_SIZE 64 30 31 /* Define __HAVE_68881 in preprocessor only if -m68881 is specified. 32 This will control the use of inline 68881 insns in certain macros. 33 Also inform the program which CPU this is for. */ 34 35 #define CPP_SPEC "%{m68881:-D__HAVE_68881__} \ 36 %{!ansi:%{m68020:-Dmc68020}%{mc68020:-Dmc68020}%{!mc68020:%{!m68020:-Dmc68010}}}" 37 38 /* -m68020 requires special flags to the assembler. */ 39 40 #define ASM_SPEC \ 41 "%{m68020:-mc68020}%{mc68020:-mc68020}%{!mc68020:%{!m68020:-mc68010}}" 42 43 /* Names to predefine in the preprocessor for this target machine. */ 44 45 #define CPP_PREDEFINES "-Dmc68000 -Dmc68010 -Dhp200 -Dunix -Asystem=unix -Asystem=bsd -Acpu=m68k -Amachine=m68k" 46 47 /* Link with libg.a when debugging, for dbx's sake. */ 48 49 #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} " 50 51 /* Alignment of field after `int : 0' in a structure. */ 52 53 #undef EMPTY_FIELD_BOUNDARY 54 #define EMPTY_FIELD_BOUNDARY 16 55 56 /* Every structure or union's size must be a multiple of 2 bytes. */ 57 58 #define STRUCTURE_SIZE_BOUNDARY 16 59 60 /* This is BSD, so it wants DBX format. */ 61 62 #define DBX_DEBUGGING_INFO 1 63 64 /* Define subroutines to call to handle multiply, divide, and remainder. 65 These routines are built into the c-library on the hp200. 66 XXX What other routines from the c-library could we use? 67 The `*' prevents an underscore from being prepended by the compiler. */ 68 69 #define DIVSI3_LIBCALL "*ldiv" 70 #define UDIVSI3_LIBCALL "*uldiv" 71 #define MODSI3_LIBCALL "*lrem" 72 #define UMODSI3_LIBCALL "*ulrem" 73 #define MULSI3_LIBCALL "*lmul" 74 #define UMULSI3_LIBCALL "*ulmul" 75 76 /* Don't default to pcc-struct-return, because gcc is the only compiler, and 77 we want to retain compatibility with older gcc versions. */ 78 #define DEFAULT_PCC_STRUCT_RETURN 0 79