74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* Definitions for Motorola 680x0 running LynxOS.
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Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <m68k/m68k.h>
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#include <m68k/coff.h>
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#undef CTORS_SECTION_ASM_OP
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#undef DTORS_SECTION_ASM_OP
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#undef ASM_OUTPUT_DESTRUCTOR
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#undef SELECT_RTX_SECTION
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#define BSS_SECTION_ASM_OP ".bss"
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#define ASM_LONG ".long"
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#include <lynx.h>
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/* See m68k.h. 7 means 68020 with 68881. */
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#ifndef TARGET_DEFAULT
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#define TARGET_DEFAULT 7
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#endif
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/* Names to predefine in the preprocessor for this target machine. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dunix -Dmc68000 -DM68K -DLynx -DIBITS32 -Asystem(unix) -Asystem(lynx) -Acpu(m68k) -Amachine(m68k)"
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/* Every structure or union's size must be a multiple of 2 bytes. */
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#define STRUCTURE_SIZE_BOUNDARY 16
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/* Lynx uses d2 and d3 as scratch registers. */
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#undef CALL_USED_REGISTERS
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#define CALL_USED_REGISTERS \
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{1, 1, 1, 1, 0, 0, 0, 0, \
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1, 1, 0, 0, 0, 0, 0, 1, \
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1, 1, 0, 0, 0, 0, 0, 0 }
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/* Return floating point values in a fp register. This make fp code a
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little bit faster. It also makes -msoft-float code incompatible with
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-m68881 code, so people have to be careful not to mix the two. */
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#undef FUNCTION_VALUE
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#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
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#undef LIBCALL_VALUE
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#define LIBCALL_VALUE(MODE) \
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gen_rtx (REG, (MODE), \
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((TARGET_68881 \
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&& ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) \
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? 16 : 0))
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#undef FUNCTION_VALUE_REGNO_P
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#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16))
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#undef NEEDS_UNTYPED_CALL
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#define NEEDS_UNTYPED_CALL 1
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