cpu/simplify.inc

   1 ; Collection of macros, for GNU Binutils .cpu files. -*- Scheme -*-
   2 ;
   3 ; Copyright 2000 Free Software Foundation, Inc.
   4 ;
   5 ; Contributed by Red Hat Inc.
   6 ;
   7 ; This file is part of the GNU Binutils.
   8 ;
   9 ; This program 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 of the License, or
  12 ; (at your option) any later version.
  13 ;
  14 ; This program 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 this program; if not, write to the Free Software
  21 ; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
  22 \f
  23 ; Enums.
  24
  25 ; Define a normal enum without using name/value pairs.
  26 ; This is currently the same as define-full-enum but it needn't remain
  27 ; that way (it's define-full-enum that would change).
  28
  29 (define-pmacro (define-normal-enum name comment attrs prefix vals)
  30   "\
  31 Define a normal enum, fixed number of arguments.
  32 "
  33   (define-full-enum name comment attrs prefix vals)
  34 )
  35
  36 ; Define a normal insn enum.
  37
  38 (define-pmacro (define-normal-insn-enum name comment attrs prefix fld vals)
  39   "\
  40 Define a normal instruction opcode enum.
  41 "
  42   (define-full-insn-enum name comment attrs prefix fld vals)
  43 )
  44 \f
  45 ; Instruction fields.
  46
  47 ; Normally, fields are unsigned have no encode/decode needs.
  48
  49 (define-pmacro (define-normal-ifield name comment attrs start length)
  50   "Define a normal instruction field.\n"
  51   (define-full-ifield name comment attrs start length UINT #f #f)
  52 )
  53
  54 ; For those who don't like typing.
  55
  56 (define-pmacro df
  57   "Shorthand form of define-full-ifield.\n"
  58   define-full-ifield
  59 )
  60 (define-pmacro dnf
  61   "Shorthand form of define-normal-ifield.\n"
  62   define-normal-ifield
  63 )
  64
  65 ; Define a normal multi-ifield.
  66 ; FIXME: The define-normal version for ifields doesn't include the mode.
  67
  68 (define-pmacro (define-normal-multi-ifield name comment attrs
  69                  mode subflds insert extract)
  70   "Define a normal multi-part instruction field.\n"
  71   (define-full-multi-ifield name comment attrs mode subflds insert extract)
  72 )
  73
  74 ; For those who don't like typing.
  75
  76 (define-pmacro dnmf
  77   "Shorthand form of define-normal-multi-ifield.\n"
  78   define-normal-multi-ifield
  79 )
  80
  81 ; Simple multi-ifields: mode is UINT, default insert/extract support.
  82
  83 (define-pmacro (dsmf name comment attrs subflds)
  84   "Define a simple multi-part instruction field.\n"
  85   (define-full-multi-ifield name comment attrs UINT subflds #f #f)
  86 )
  87 \f
  88 ; Hardware.
  89
  90 ; Simpler version for most hardware elements.
  91 ; Allow special assembler support specification but no semantic-name or
  92 ; get/set specs.
  93
  94 (define-pmacro (define-normal-hardware name comment attrs type
  95                  indices values handlers)
  96   "\
  97 Define a normal hardware element.
  98 "
  99   (define-full-hardware name comment attrs name type
 100     indices values handlers () () ())
 101 )
 102
 103 ; For those who don't like typing.
 104
 105 (define-pmacro dnh
 106   "Shorthand form of define-normal-hardware.\n"
 107   define-normal-hardware
 108 )
 109
 110 ; Simpler version of dnh that leaves out the indices, values, handlers,
 111 ; get, set, and layout specs.
 112 ; This is useful for 1 bit registers.
 113 ; ??? While dsh and dnh aren't that distinguishable when perusing a .cpu file,
 114 ; they both take a fixed number of positional arguments, and dsh is a proper
 115 ; subset of dnh with all arguments in the same positions, so methinks things
 116 ; are ok.
 117
 118 (define-pmacro (define-simple-hardware name comment attrs type)
 119   "\
 120 Define a simple hardware element (usually a scalar register).
 121 "
 122   (define-full-hardware name comment attrs name type () () () () () ())
 123 )
 124
 125 (define-pmacro dsh
 126   "Shorthand form of define-simple-hardware.\n"
 127   define-simple-hardware
 128 )
 129 \f
 130 ; Operands.
 131
 132 (define-pmacro (define-normal-operand name comment attrs type index)
 133   "Define a normal operand.\n"
 134   (define-full-operand name comment attrs type DFLT index () () ())
 135 )
 136
 137 ; For those who don't like typing.
 138 ; FIXME: dno?
 139
 140 (define-pmacro dnop
 141   "Shorthand form of define-normal-operand.\n"
 142   define-normal-operand
 143 )
 144
 145 (define-pmacro (dndo x-name x-mode x-args
 146                      x-syntax x-base-ifield x-encoding x-ifield-assertion
 147                      x-getter x-setter)
 148   "Define a normal derived operand."
 149   (define-derived-operand
 150     (name x-name)
 151     (mode x-mode)
 152     (args x-args)
 153     (syntax x-syntax)
 154     (base-ifield x-base-ifield)
 155     (encoding x-encoding)
 156     (ifield-assertion x-ifield-assertion)
 157     (getter x-getter)
 158     (setter x-setter)
 159     )
 160 )
 161 \f
 162 ; Instructions.
 163
 164 ; Define an instruction object, normal version.
 165 ; At present all fields must be specified.
 166 ; Fields ifield-assertion is absent.
 167
 168 (define-pmacro (define-normal-insn name comment attrs syntax fmt semantics timing)
 169   "Define a normal instruction.\n"
 170   (define-full-insn name comment attrs syntax fmt () semantics timing)
 171 )
 172
 173 ; To reduce the amount of typing.
 174 ; Note that this is the same name as the D'ni in MYST.  Oooohhhh.....
 175 ; this must be the right way to go. :-)
 176
 177 (define-pmacro dni
 178   "Shorthand form of define-normal-insn.\n"
 179   define-normal-insn
 180 )
 181 \f
 182 ; Macro instructions.
 183
 184 ; Define a macro-insn object, normal version.
 185 ; This only supports expanding to one real insn.
 186
 187 (define-pmacro (define-normal-macro-insn name comment attrs syntax expansion)
 188   "Define a normal macro instruction.\n"
 189   (define-full-minsn name comment attrs syntax expansion)
 190 )
 191
 192 ; To reduce the amount of typing.
 193
 194 (define-pmacro dnmi
 195   "Shorthand form of define-normal-macro-insn.\n"
 196   define-normal-macro-insn
 197 )
 198 \f
 199 ; Modes.
 200 ; ??? Not currently available for use.
 201 ;
 202 ; Define Normal Mode
 203 ;
 204 ;(define-pmacro (define-normal-mode name comment attrs bits bytes
 205 ;                non-mode-c-type printf-type sem-mode ptr-to host?)
 206 ;  "Define a normal mode.\n"
 207 ;  (define-full-mode name comment attrs bits bytes
 208 ;    non-mode-c-type printf-type sem-mode ptr-to host?)
 209 ;)
 210 ;
 211 ; For those who don't like typing.
 212 ;(define-pmacro dnm
 213 ;  "Shorthand form of define-normal-mode.\n"
 214 ;  define-normal-mode
 215 ;)