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Annotation of GNUtools/cc/config/ns32k/pc532.h, revision 1.1

1.1     ! root        1: /* Definitions of target machine for GNU compiler.
        !             2:    PC532 with National 32532.
        !             3:    Copyright (C) 1990 Free Software Foundation, Inc.
        !             4:    Contributed by Jukka Virtanen <[email protected]>, Jyrki Kuoppala <[email protected]>,
        !             5:    Tatu Yl|nen <[email protected]>, Johannes Helander <[email protected]>.
        !             6: 
        !             7: This file is part of GNU CC.
        !             8: 
        !             9: GNU CC is free software; you can redistribute it and/or modify
        !            10: it under the terms of the GNU General Public License as published by
        !            11: the Free Software Foundation; either version 2, or (at your option)
        !            12: any later version.
        !            13: 
        !            14: GNU CC is distributed in the hope that it will be useful,
        !            15: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            17: GNU General Public License for more details.
        !            18: 
        !            19: You should have received a copy of the GNU General Public License
        !            20: along with GNU CC; see the file COPYING.  If not, write to
        !            21: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            22: 
        !            23: #include "ns32k/ns32k.h"
        !            24: 
        !            25: /* Compile for the floating point unit & 32532 by default;
        !            26:    also presume SB is zero */
        !            27: 
        !            28: #define TARGET_DEFAULT 25
        !            29: 
        !            30: /* Write DBX debugging info for gdb to read */
        !            31: 
        !            32: #define DBX_DEBUGGING_INFO
        !            33: 
        !            34: /* Use the re-entrant and potentially faster method */
        !            35: 
        !            36: #undef PCC_STATIC_STRUCT_RETURN
        !            37: 
        !            38: /* There's a bug in the setjmp implementation that strikes
        !            39:    if the caller of setjmp doesn't have a frame pointer.  */
        !            40: #undef FRAME_POINTER_REQUIRED
        !            41: #define FRAME_POINTER_REQUIRED current_function_calls_setjmp
        !            42: 
        !            43: /* 32-bit alignment for efficiency */
        !            44: #undef POINTER_BOUNDARY
        !            45: #define POINTER_BOUNDARY 32
        !            46: 
        !            47: /* 32-bit alignment for efficiency */
        !            48: #undef FUNCTION_BOUNDARY
        !            49: #define FUNCTION_BOUNDARY 32
        !            50: 
        !            51: /* 32532 spec says it can handle any alignment.  Rumor from tm-ns32k.h
        !            52:    tells this might not be actually true (but it's for 32032, perhaps
        !            53:    National has fixed the bug for 32532).  You might have to change this
        !            54:    if the bug still exists. */
        !            55: 
        !            56: #undef STRICT_ALIGNMENT
        !            57: #define STRICT_ALIGNMENT 0
        !            58: 
        !            59: /* Maybe someone needs to know which processor we're running on */
        !            60: 
        !            61: #undef CPP_PREDEFINES
        !            62: #define CPP_PREDEFINES "-Dns32000 -Dns32532 -Dpc532 -Dunix -Asystem(unix) -Acpu(ns32k) -Amachine(ns32k)"
        !            63: 
        !            64: /* Use pc relative addressing whenever possible,
        !            65:    it's more efficient than absolute (ns32k.c)
        !            66:    You have to fix a bug in gas 1.38.1 to make this work with gas,
        !            67:    patch available from [email protected]. */
        !            68: 
        !            69: #define PC_RELATIVE
        !            70: 
        !            71: /* Operand of bsr or jsr should be just the address.  */
        !            72: 
        !            73: #define CALL_MEMREF_IMPLICIT
        !            74: 
        !            75: /* movd insns may have floating point constant operands.  */
        !            76: 
        !            77: #define MOVD_FLOAT_OK
        !            78: 
        !            79: /* Every address needs to use a base reg.  */
        !            80: 
        !            81: #define BASE_REG_NEEDED

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