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/* Definitions for Motorola 680x0 running LynxOS.
Copyright (C) 1993, 1994, 1995, 1996 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>
#include <m68k/coff.h>
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
#undef ASM_OUTPUT_DESTRUCTOR
#undef SELECT_RTX_SECTION
#define BSS_SECTION_ASM_OP ".bss"
#define ASM_LONG ".long"
#include <lynx.h>
/* See m68k.h. 7 means 68020 with 68881. */
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
#endif
/* Names to predefine in the preprocessor for this target machine. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-Dunix -Dmc68000 -DM68K -DLynx -DIBITS32 -Asystem(unix) -Asystem(lynx) -Acpu(m68k) -Amachine(m68k)"
/* Every structure or union's size must be a multiple of 2 bytes. */
#define STRUCTURE_SIZE_BOUNDARY 16
/* Lynx uses d2 and d3 as scratch registers. */
#undef CALL_USED_REGISTERS
#define CALL_USED_REGISTERS \
{1, 1, 1, 1, 0, 0, 0, 0, \
1, 1, 0, 0, 0, 0, 0, 1, \
1, 1, 0, 0, 0, 0, 0, 0 }
/* Return floating point values in a fp register. This make fp code a
little bit faster. It also makes -msoft-float code incompatible with
-m68881 code, so people have to be careful not to mix the two. */
#undef FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
#undef LIBCALL_VALUE
#define LIBCALL_VALUE(MODE) \
gen_rtx (REG, (MODE), \
((TARGET_68881 \
&& ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) \
? 16 : 0))
#undef FUNCTION_VALUE_REGNO_P
#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16))
#undef NEEDS_UNTYPED_CALL
#define NEEDS_UNTYPED_CALL 1
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