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Annotation of gcc/config/tower.h, revision 1.1

1.1     ! root        1: /* Definitions of target machine for GNU compiler.
        !             2:    Copyright (C) 1990 Free Software Foundation, Inc.
        !             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
        !            34: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            35: 
        !            36: 
        !            37: #include "m68k.h"
        !            38: 
        !            39: 
        !            40: /* See m68k.h.  5 means 68020 with no 68881.  */
        !            41: 
        !            42: #define TARGET_DEFAULT 5
        !            43: 
        !            44: /* Names to predefine in the preprocessor for this target machine.  */
        !            45: 
        !            46: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200"
        !            47: 
        !            48: #if 0  /* It is incorrect to test these symbols.
        !            49:          They describe the host, not the target.
        !            50:          It should not matter which model is specified.  */
        !            51: #ifdef tower32_600
        !            52: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600"
        !            53: #endif
        !            54: #ifdef tower32_700
        !            55: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700"
        !            56: #endif
        !            57: #ifdef tower32_800
        !            58: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800"
        !            59: #endif
        !            60: #ifdef tower32_850
        !            61: #define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850"
        !            62: #endif
        !            63: #endif
        !            64: 
        !            65: /* The startfiles and libraries depend on the -p and -m68881 options.
        !            66:    The Tower does not support the -pg option.  */
        !            67: 
        !            68: #define LINK_SPEC                                              \
        !            69: "%{p:%{m68881:-L/usr/lib/fp/libp} -L/usr/lib/libp}             \
        !            70:  %{m68881:-L/usr/lib/fp}"
        !            71: 
        !            72: #define LIB_SPEC "-lc %{m68881:/usr/lib/fp/crtn.o}%{!m68881:/lib/crtn.o}"
        !            73: 
        !            74: /* Use mem* functions, recognize #ident lines.  */
        !            75: 
        !            76: #define TARGET_MEM_FUNCTIONS
        !            77: #define IDENT_DIRECTIVE
        !            78: 
        !            79: /* This is only used in g++, don't prepend underscore.  */
        !            80: 
        !            81: #define NO_UNDERSCORES
        !            82: 
        !            83: /* Every structure and union's size must be a multiple of two bytes.  */
        !            84: 
        !            85: #define STRUCTURE_SIZE_BOUNDARY 16
        !            86: 
        !            87: /* All register names should have a leading % character.  */
        !            88: 
        !            89: #undef REGISTER_NAMES
        !            90: #define REGISTER_NAMES \
        !            91: {"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7",                      \
        !            92:  "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp",                      \
        !            93:  "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7",              \
        !            94:  "%fpa0", "%fpa1", "%fpa2", "%fpa3", "%fpa4", "%fpa5", "%fpa6", "%fpa7",      \
        !            95:  "%fpa8", "%fpa9", "%fpa10", "%fpa11", "%fpa12", "%fpa13", "%fpa14", "%fpa15",\
        !            96:  "%fpa16","%fpa17", "%fpa18", "%fpa19", "%fpa20", "%fpa21", "%fpa22","%fpa23",\
        !            97:  "%fpa24","%fpa25", "%fpa26", "%fpa27", "%fpa28", "%fpa29", "%fpa30","%fpa31"}
        !            98: 
        !            99: /* We do not want leading underscores.  */
        !           100: 
        !           101: #undef ASM_OUTPUT_LABELREF
        !           102: #define ASM_OUTPUT_LABELREF(FILE,NAME)  \
        !           103:   fprintf (FILE, "%s", NAME)

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