1 /* Definitions of target machine for GNU compiler.
2 Copyright (C) 1990, 1994, 1996 Free Software Foundation, Inc.
3 Contributed by Robert Andersson, International Systems, Oslo, ra@intsys.no.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* For NCR Tower 32/4x0 and 32/6x0 running System V Release 3. I don't have
23 access to 200/700/800/850 machines, so I don't know if it works on those
24 as well. It shouldn't be far from it however. The hardware floating point
25 support is completely untested, as I do not have access to a machine with
26 a 6888x FPU in it. It does not work on the System V Release 2 based OS
27 releases. Making it work will not be easy, due to the silly way in which
28 stack expansion is implemented in the OS.
30 This file is included in tower-as.h.
31 Do *NOT* include this file directly. */
34 #include "m68k/m68k.h"
36 #define TARGET_DEFAULT (MASK_BITFIELD|MASK_68020)
38 /* Don't try using XFmode. */
39 #undef LONG_DOUBLE_TYPE_SIZE
40 #define LONG_DOUBLE_TYPE_SIZE 64
42 /* Names to predefine in the preprocessor for this target machine. */
44 #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
46 #if 0 /* It is incorrect to test these symbols.
47 They describe the host, not the target.
48 It should not matter which model is specified. */
50 #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
53 #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
56 #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
59 #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
63 /* The startfiles and libraries depend on the -p and -m68881 options.
64 The Tower does not support the -pg option. */
67 "%{p:%{m68881:-L/usr/lib/fp/libp} -L/usr/lib/libp} \
68 %{m68881:-L/usr/lib/fp}"
71 "%{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
73 #define STARTFILE_SPEC \
74 "%{p:mcrt1.o%s} %{!p:crt1.o%s} crtbegin.o%s"
76 /* Use mem* functions, recognize #ident lines. */
78 #define TARGET_MEM_FUNCTIONS
79 #define IDENT_DIRECTIVE
81 /* Every structure and union's size must be a multiple of two bytes. */
83 #define STRUCTURE_SIZE_BOUNDARY 16
85 /* All register names should have a leading % character. */
88 #define REGISTER_NAMES \
89 {"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
90 "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
91 "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"};
93 #undef REGISTER_PREFIX
94 #define REGISTER_PREFIX "%"
96 #undef IMMEDIATE_PREFIX
97 #define IMMEDIATE_PREFIX "&"
99 /* The prefix to add to user-visible assembler symbols. */
101 /* We do not want leading underscores. */
103 #undef USER_LABEL_PREFIX
104 #define USER_LABEL_PREFIX ""