/* Definitions of target machine for GNU compiler. Altos 3068 68020 version. Copyright (C) 1988, 1989, 1993, 1996 Free Software Foundation, Inc. Contributed by Jyrki Kuoppala <jkp@cs.hut.fi> 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. 7 means 68020 with 68881. */ /* 5 is without 68881. Change to 7 if you have 68881 */ #ifndef TARGET_DEFAULT #define TARGET_DEFAULT (MASK_BITFIELD|MASK_68020) /* Don't try using XFmode. */ #undef LONG_DOUBLE_TYPE_SIZE #define LONG_DOUBLE_TYPE_SIZE 64 #endif /* Define __HAVE_68881__ in preprocessor, according to the -m flags. This will control the use of inline 68881 insns in certain macros. Also inform the program which CPU this is for. */ #if TARGET_DEFAULT & MASK_68881 /* -m68881 is the default */ #define CPP_SPEC \ "%{!msoft-float:-D__HAVE_68881__ }\ %{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}" #else /* -msoft-float is the default */ #define CPP_SPEC \ "%{m68881:-D__HAVE_68881__ }\ %{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}" #endif /* -m68000 requires special flags to the assembler. */ #define ASM_SPEC \ "%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}}" /* Names to predefine in the preprocessor for this target machine. */ #define CPP_PREDEFINES "-Dmc68000 -DPORTAR -Dmc68k32 -Uvax -Dm68k -Dunix -Asystem=unix -Acpu=m68k -Amachine=m68k" /* 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 /* We use gnu assembler, linker and gdb, so we want DBX format. */ #define DBX_DEBUGGING_INFO /* Tell some conditionals we will use GAS. Is this really used? */ #define USE_GAS #undef ASM_OUTPUT_FLOAT_OPERAND #define ASM_OUTPUT_FLOAT_OPERAND(CODE,FILE,VALUE) \ do { \ if (CODE == 'f') \ { \ char dstr[30]; \ REAL_VALUE_TO_DECIMAL (VALUE, "%.9g", dstr); \ fprintf (FILE, "#0r%s", dstr); \ } \ else \ { \ long l; \ REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \ if (sizeof (int) == sizeof (long)) \ asm_fprintf ((FILE), "%I0x%x", (int) l); \ else \ asm_fprintf ((FILE), "%I0x%lx", l); \ } \ } while (0) #undef ASM_OUTPUT_DOUBLE_OPERAND #define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \ do { char dstr[30]; \ REAL_VALUE_TO_DECIMAL (VALUE, "%.20g", dstr); \ fprintf (FILE, "#0r%s", dstr); \ } while (0) /* Return pointer values in both d0 and a0. */ #undef FUNCTION_EXTRA_EPILOGUE #define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \ { \ if (current_function_returns_pointer \ && ! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \ fprintf (FILE, "\tmovel d0,a0\n"); \ }