110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* Definitions of target machine for GNU compiler.
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Copyright (C) 1990, 1994 Free Software Foundation, Inc.
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Written by Robert Andersson, International Systems, Oslo, Norway.
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Please send bug reports, questions and improvements to ra@intsys.no.
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For NCR Tower 32/4x0 and 32/6x0 running System V Release 3.
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I don't have access to 200/700/800/850 machines, so I don't know if it
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works on those as well. It shouldn't be far from it however.
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The hardware floating point support is completely untested, as I do
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not have access to a machine with a 6888x FPU in it.
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It does not work on the System V Release 2 based OS releases. Making it
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work will not be easy, due to the silly way in which stack expansion is
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implemented in the OS.
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This file is included in tower-as.h.
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Do *NOT* include this file directly.
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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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/* See m68k.h. 5 means 68020 with no 68881. */
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#define TARGET_DEFAULT 5
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/* Don't try using XFmode. */
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#undef LONG_DOUBLE_TYPE_SIZE
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#define LONG_DOUBLE_TYPE_SIZE 64
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/* Names to predefine in the preprocessor for this target machine. */
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#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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#if 0 /* It is incorrect to test these symbols.
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They describe the host, not the target.
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It should not matter which model is specified. */
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#ifdef tower32_600
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#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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#endif
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#ifdef tower32_700
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#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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#endif
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#ifdef tower32_800
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#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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#endif
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#ifdef tower32_850
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#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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#endif
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#endif
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/* The startfiles and libraries depend on the -p and -m68881 options.
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The Tower does not support the -pg option. */
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#define LINK_SPEC \
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"%{p:%{m68881:-L/usr/lib/fp/libp} -L/usr/lib/libp} \
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%{m68881:-L/usr/lib/fp}"
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#define LIB_SPEC \
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"%{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
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#define STARTFILE_SPEC \
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"%{p:mcrt1.o%s} %{!p:crt1.o%s} crtbegin.o%s"
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/* Use mem* functions, recognize #ident lines. */
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#define TARGET_MEM_FUNCTIONS
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#define IDENT_DIRECTIVE
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/* Every structure and union's size must be a multiple of two bytes. */
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#define STRUCTURE_SIZE_BOUNDARY 16
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/* All register names should have a leading % character. */
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#undef REGISTER_NAMES
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#define REGISTER_NAMES \
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{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
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"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
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"%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"};
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#undef REGISTER_PREFIX
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#define REGISTER_PREFIX "%"
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#undef IMMEDIATE_PREFIX
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#define IMMEDIATE_PREFIX "&"
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/* We do not want leading underscores. */
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#undef ASM_OUTPUT_LABELREF
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#define ASM_OUTPUT_LABELREF(FILE,NAME) \
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fprintf (FILE, "%s", NAME)
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