as/hppa-aux.h

   1 /* hppa-aux.h -- Assembler for the PA - PA-RISC specific support routines
   2    Copyright (C) 1989 Free Software Foundation, Inc.
   3
   4 This file is part of GAS, the GNU Assembler.
   5
   6 GAS is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 1, or (at your option)
   9 any later version.
  10
  11 GAS is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GAS; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /*
  21    HP PA-RISC support was contributed by the Center for Software Science
  22    at the University of Utah.
  23  */
  24
  25 /* HP-PA support for Mach-O    ... USV */
  26
  27 #ifndef HPPA_AUX_DEFINED
  28 #define HPPA_AUX_DEFINED
  29
  30 typedef enum FPOF { SGL, DBL, ILLEGAL_FMT, QUAD } FP_Operand_Format;
  31
  32 int pa_parse_number();
  33
  34 int pa_parse_fp_cmp_cond();
  35
  36 FP_Operand_Format pa_parse_fp_format();
  37
  38 int pa_parse_nullif();
  39
  40 int pa_parse_nonneg_cmpsub_cmpltr();
  41
  42 int pa_parse_neg_cmpsub_cmpltr();
  43
  44 int pa_parse_nonneg_add_cmpltr();
  45
  46 int pa_parse_neg_add_cmpltr();
  47
  48 /* A structure used during assembly of individual instructions */
  49
  50 struct pa_it {
  51     char    *error;
  52     unsigned long opcode;
  53 #ifdef undef
  54     symbol_dictS *nlistp;      /*** used to be:    struct nlist *nlistp; */
  55 #else
  56     nlist_t *nlistp;
  57 #endif
  58     expressionS exp;
  59     int pcrel;
  60     int pcrel_reloc;
  61     FP_Operand_Format fpof1;   /* Floating Point Operand Format, operand 1 */
  62     FP_Operand_Format fpof2;   /* Floating Point Operand Format, operand 2 */
  63                                /* (used only for class 1 instructions --   */
  64                                /* the conversion instructions)             */
  65     long field_selector;
  66     unsigned int reloc;
  67 /*      enum reloc_type_hppa reloc; */
  68     int code;
  69     long arg_reloc;
  70 };
  71
  72 extern struct pa_it the_insn;
  73
  74 /*
  75   PA-89 floating point registers are arranged like this:
  76
  77
  78   +--------------+--------------+
  79   |   0 or 16L   |  16 or 16R   |
  80   +--------------+--------------+
  81   |   1 or 17L   |  17 or 17R   |
  82   +--------------+--------------+
  83   |              |              |
  84
  85   .              .              .
  86   .              .              .
  87   .              .              .
  88
  89   |              |              |
  90   +--------------+--------------+
  91   |  14 or 30L   |  30 or 30R   |
  92   +--------------+--------------+
  93   |  15 or 31L   |  31 or 31R   |
  94   +--------------+--------------+
  95
  96
  97   The following is a version of pa_parse_number that
  98   handles the L/R notation and returns the correct
  99   value to put into the instruction register field.
 100   The correct value to put into the instruction is
 101   encoded in the structure 'pa_89_fp_reg_struct'.
 102
 103  */
 104
 105 struct pa_89_fp_reg_struct {
 106   char number_part;
 107   char L_R_select;
 108 };
 109
 110 int need_89_opcode();
 111 int pa_89_parse_number();
 112
 113 extern int getAbsoluteExpression(
 114     char *str);
 115 extern int evaluateAbsolute(
 116     expressionS exp,
 117     int field_selector);
 118 extern int getExpression(
 119     char *str);
 120
 121 #endif /* HPPA_AUX_DEFINED */
 122
 123 /* end hppa-aux.h */