gcc/config/ns32k/encore.h

   1 /* Definitions of target machine for GNU compiler.  ENCORE NS32000 version.
   2    Copyright (C) 1988, 1993 Free Software Foundation, Inc.
   3    Adapted by Robert Brown (brown@harvard.harvard.edu) from the Sequent
   4    version by Michael Tiemann (tiemann@mcc.com).
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GNU CC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 #define EXTERNAL_PREFIX '?'
  25 #define IMMEDIATE_PREFIX '$'
  26
  27 #include "ns32k/ns32k.h"
  28
  29 #define SDB_DEBUGGING_INFO
  30 #undef DBX_REGISTER_NUMBER
  31 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
  32
  33 /* Cause long-jump assembler to be used,
  34    since otherwise some files fail to be assembled right.  */
  35 #define ASM_SPEC "-j"
  36
  37 #undef ASM_FILE_START
  38 #undef ASM_GENERATE_INTERNAL_LABEL
  39 #undef ASM_OUTPUT_ADDR_DIFF_ELT
  40 #undef ASM_OUTPUT_ALIGN
  41 #undef ASM_OUTPUT_ASCII
  42 #undef ASM_OUTPUT_DOUBLE
  43 #undef ASM_OUTPUT_INT
  44 #undef ASM_OUTPUT_INTERNAL_LABEL
  45 #undef ASM_OUTPUT_LOCAL
  46 #undef CPP_PREDEFINES
  47 #undef FUNCTION_BOUNDARY
  48 #undef PRINT_OPERAND
  49 #undef PRINT_OPERAND_ADDRESS
  50 #undef TARGET_VERSION
  51 #undef FUNCTION_PROFILER
  52 #undef ASM_OUTPUT_LABELREF_AS_INT
  53
  54 #define TARGET_DEFAULT 9  /* 32332 with 32081.  */
  55 #define TARGET_VERSION fprintf (stderr, " (32000, Encore syntax)");
  56 /* Note Encore does not standardly do -Dencore.  */
  57 /* budd: should have a -ns32332 (or -apc) switch! but no harm for now */
  58 #define CPP_PREDEFINES "-Dns32000 -Dn16 -Dns16000 -Dns32332 -Dunix -Asystem(unix) -Acpu(ns32k) -Amachine(ns32k)"
  59
  60 /* Ignore certain cpp directives used in header files on sysV.  */
  61 #define SCCS_DIRECTIVE
  62
  63 /* Output #ident as a .ident.  */
  64 #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
  65
  66 /* The .file command should always begin the output.  */
  67 #define ASM_FILE_START(FILE) \
  68 output_file_directive ((FILE), main_input_filename)
  69
  70 #define FUNCTION_BOUNDARY 128           /* speed optimization */
  71
  72 /*
  73  *  The Encore assembler uses ".align 2" to align on 2-byte boundaries.
  74  */
  75
  76 #define ASM_OUTPUT_ALIGN(FILE,LOG)                                      \
  77         fprintf (FILE, "\t.align %d\n", 1 << (LOG))
  78
  79 /* The Encore assembler doesn't seem to accept the usual second argument
  80    and warns that .align may not work in the text section if optimization
  81    is on.  */
  82 #undef ASM_OUTPUT_ALIGN_CODE
  83 #define ASM_OUTPUT_ALIGN_CODE(FILE)
  84
  85 /*
  86  *  Internal labels are prefixed with a period.
  87  */
  88
  89 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)                   \
  90         sprintf (LABEL, "*.%s%d", PREFIX, NUM)
  91 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)                      \
  92         fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
  93 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)                      \
  94         fprintf (FILE, "\t.double .L%d-.LI%d\n", VALUE, REL)
  95
  96 /*
  97  *  Different syntax for integer constants, double constants, and
  98  *  uninitialized locals.
  99  */
 100
 101 #define ASM_OUTPUT_INT(FILE,VALUE)                              \
 102 ( fprintf (FILE, "\t.double "),                                 \
 103   output_addr_const (FILE, (VALUE)),                            \
 104   fprintf (FILE, "\n"))
 105
 106 #define ASM_OUTPUT_LABELREF_AS_INT(STREAM, NAME)                        \
 107 do {                                                                    \
 108   fprintf (STREAM, "\t.double\t");                                      \
 109   ASM_OUTPUT_LABELREF (STREAM, NAME);                                   \
 110   fprintf (STREAM, "\n");                                               \
 111 } while (0)
 112
 113
 114 #define ASM_OUTPUT_DOUBLE(FILE,VALUE)                           \
 115  fprintf (FILE, "\t.long 0f%.20e\n", (VALUE))
 116
 117 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)             \
 118 ( fputs ("\t.bss ", (FILE)),                                    \
 119   assemble_name ((FILE), (NAME)),                               \
 120   fprintf ((FILE), ",%u,%u\n", (SIZE), (ROUNDED)))
 121
 122  /*
 123   *  Encore assembler can't handle huge string constants like the one in
 124   *  gcc.c.  If the default routine in varasm.c were more conservative, this
 125   *  code could be eliminated.  It starts a new .ascii directive every 40
 126   *  characters.
 127   */
 128
 129 #define ASM_OUTPUT_ASCII(file, p, size)                 \
 130 do {                                                    \
 131   int i;                                                \
 132   for (i = 0; i < (size); i++)                          \
 133     {                                                   \
 134       register int c = (p)[i];                          \
 135       if ((i / 40) * 40 == i)                           \
 136       if (i == 0)                                       \
 137         fprintf ((file), "\t.ascii \"");                \
 138       else                                              \
 139         fprintf ((file), "\"\n\t.ascii \"");            \
 140       if (c == '\"' || c == '\\')                       \
 141         putc ('\\', (file));                            \
 142       if (c >= ' ' && c < 0177)                         \
 143         putc (c, (file));                               \
 144       else                                              \
 145         {                                               \
 146           fprintf ((file), "\\%o", c);                  \
 147           if (i < (size) - 1                            \
 148               && (p)[i + 1] >= '0' && (p)[i + 1] <= '9')\
 149           fprintf ((file), "\"\n\t.ascii \"");          \
 150         }                                               \
 151     }                                                   \
 152   fprintf ((file), "\"\n");                             \
 153 } while (0)
 154
 155 /* Modify syntax of jsr instructions.  */
 156 #define CALL_MEMREF_IMPLICIT
 157
 158 #define NO_ABSOLUTE_PREFIX_IF_SYMBOLIC
 159
 160 #define PRINT_OPERAND(FILE, X, CODE) print_operand(FILE, X, CODE)
 161
 162 #define PRINT_OPERAND_ADDRESS(FILE, ADDR)  print_operand_address(FILE, ADDR)
 163 \f
 164 /* Change the way in which data is allocated and initialized on the
 165    encore so that both private and shared data are supported.  Shared data
 166    that is initialized must be contained in the ".shrdata" section
 167    of the program.  This is accomplished by defining the SHARED_SECTION_ASM_OP
 168    macro.  Share data that is simply allocated, and not initialized must
 169    be prefixed with the ".shrcomm" or ".shrbss" pseudo op, for common or
 170    local data respectively.  This is accomplished by redefining the
 171    ASM_OUTPUT_COMMON and ASM_OUTPUT_LOCAL macros. */
 172
 173 /* Assembler pseudo-op for shared data segment. */
 174
 175 #define SHARED_SECTION_ASM_OP ".shrdata"
 176
 177 /* This says how to output an assembler line
 178    to define a shared common symbol. */
 179
 180 #define ASM_OUTPUT_SHARED_COMMON(FILE, NAME, SIZE, ROUNDED) \
 181 ( fputs (".shrcomm ", (FILE)),                  \
 182   assemble_name ((FILE), (NAME)),               \
 183   fprintf ((FILE), ",%d\n", (ROUNDED)))
 184
 185 /* This says how to output an assembler line
 186    to define a shared local symbol. */
 187
 188 #define ASM_OUTPUT_SHARED_LOCAL(FILE, NAME, SIZE, ROUNDED) \
 189 ( fputs ("\t.shrbss ", (FILE)),                         \
 190   assemble_name ((FILE), (NAME)),                       \
 191   fprintf ((FILE), ",%d,%d\n", (SIZE), (ROUNDED)))
 192
 193 #define FUNCTION_PROFILER(FILE, LABELNO)  \
 194    fprintf (FILE, "\taddr .LP%d,r0\n\tjsr mcount\n", (LABELNO))
 195
 196 #define ENCORE_ASM