mirror of
https://github.com/pmret/gcc-papermario.git
synced 2024-11-08 20:02:47 +01:00
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* 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
|