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1.1 root 1: /* Definitions of target machine for GNU compiler.
1.1.1.3 root 2: Copyright (C) 1990, 1994 Free Software Foundation, Inc.
1.1 root 3:
4: Written by Robert Andersson, International Systems, Oslo, Norway.
5: Please send bug reports, questions and improvements to [email protected].
6:
7: For NCR Tower 32/4x0 and 32/6x0 running System V Release 3.
8: I don't have access to 200/700/800/850 machines, so I don't know if it
9: works on those as well. It shouldn't be far from it however.
10: The hardware floating point support is completely untested, as I do
11: not have access to a machine with a 6888x FPU in it.
12: It does not work on the System V Release 2 based OS releases. Making it
13: work will not be easy, due to the silly way in which stack expansion is
14: implemented in the OS.
15:
16: This file is included in tower-as.h.
17: Do *NOT* include this file directly.
18:
19:
20: This file is part of GNU CC.
21:
22: GNU CC is free software; you can redistribute it and/or modify
23: it under the terms of the GNU General Public License as published by
24: the Free Software Foundation; either version 2, or (at your option)
25: any later version.
26:
27: GNU CC is distributed in the hope that it will be useful,
28: but WITHOUT ANY WARRANTY; without even the implied warranty of
29: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30: GNU General Public License for more details.
31:
32: You should have received a copy of the GNU General Public License
33: along with GNU CC; see the file COPYING. If not, write to
1.1.1.4 ! root 34: the Free Software Foundation, 59 Temple Place - Suite 330,
! 35: Boston, MA 02111-1307, USA. */
1.1 root 36:
37:
38: #include "m68k/m68k.h"
39:
40:
41: /* See m68k.h. 5 means 68020 with no 68881. */
42:
43: #define TARGET_DEFAULT 5
44:
45: /* Don't try using XFmode. */
46: #undef LONG_DOUBLE_TYPE_SIZE
47: #define LONG_DOUBLE_TYPE_SIZE 64
48:
49: /* Names to predefine in the preprocessor for this target machine. */
50:
1.1.1.2 root 51: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
1.1 root 52:
53: #if 0 /* It is incorrect to test these symbols.
54: They describe the host, not the target.
55: It should not matter which model is specified. */
56: #ifdef tower32_600
1.1.1.2 root 57: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
1.1 root 58: #endif
59: #ifdef tower32_700
1.1.1.2 root 60: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
1.1 root 61: #endif
62: #ifdef tower32_800
1.1.1.2 root 63: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
1.1 root 64: #endif
65: #ifdef tower32_850
1.1.1.2 root 66: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
1.1 root 67: #endif
68: #endif
69:
70: /* The startfiles and libraries depend on the -p and -m68881 options.
71: The Tower does not support the -pg option. */
72:
73: #define LINK_SPEC \
74: "%{p:%{m68881:-L/usr/lib/fp/libp} -L/usr/lib/libp} \
75: %{m68881:-L/usr/lib/fp}"
76:
77: #define LIB_SPEC \
78: "%{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
79:
80: #define STARTFILE_SPEC \
81: "%{p:mcrt1.o%s} %{!p:crt1.o%s} crtbegin.o%s"
82:
83: /* Use mem* functions, recognize #ident lines. */
84:
85: #define TARGET_MEM_FUNCTIONS
86: #define IDENT_DIRECTIVE
87:
88: /* Every structure and union's size must be a multiple of two bytes. */
89:
90: #define STRUCTURE_SIZE_BOUNDARY 16
91:
92: /* All register names should have a leading % character. */
93:
94: #undef REGISTER_NAMES
95: #define REGISTER_NAMES \
96: {"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
97: "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
98: "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"};
99:
1.1.1.3 root 100: #undef REGISTER_PREFIX
101: #define REGISTER_PREFIX "%"
102:
103: #undef IMMEDIATE_PREFIX
1.1.1.4 ! root 104: #define IMMEDIATE_PREFIX "&"
1.1.1.3 root 105:
1.1 root 106: /* We do not want leading underscores. */
107:
108: #undef ASM_OUTPUT_LABELREF
109: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
110: fprintf (FILE, "%s", NAME)
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