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219 lines
6.3 KiB
Scheme
219 lines
6.3 KiB
Scheme
; Collection of macros, for GNU Binutils .cpu files. -*- Scheme -*-
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;
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; Copyright 2000, 2007, 2009 Free Software Foundation, Inc.
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;
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; Contributed by Red Hat Inc.
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;
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; This file is part of the GNU Binutils.
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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; MA 02110-1301, USA.
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; Enums.
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; Define a normal enum without using name/value pairs.
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; This is currently the same as define-full-enum but it needn't remain
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; that way (it's define-full-enum that would change).
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(define-pmacro (define-normal-enum name comment attrs prefix vals)
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"Define a normal enum, fixed number of arguments."
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(define-full-enum name comment attrs prefix vals)
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)
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; Define a normal insn enum.
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(define-pmacro (define-normal-insn-enum name comment attrs prefix fld vals)
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"Define a normal instruction opcode enum."
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(define-full-insn-enum name comment attrs prefix fld vals)
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)
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; Instruction fields.
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; Normally, fields are unsigned and have no encode/decode needs.
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(define-pmacro (define-normal-ifield name comment attrs start length)
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"Define a normal instruction field."
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(define-full-ifield name comment attrs start length UINT #f #f)
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)
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; For those who don't like typing.
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(define-pmacro (df name comment attrs start length mode encode decode)
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"Shorthand form of normal fields requiring mode, encode/decode."
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(define-full-ifield name comment attrs start length mode encode decode)
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)
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(define-pmacro dnf
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"Shorthand form of define-normal-ifield."
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define-normal-ifield
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)
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; Define a normal multi-ifield.
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(define-pmacro (define-normal-multi-ifield name comment attrs
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mode subflds insert extract)
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"Define a normal multi-part instruction field."
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(define-full-multi-ifield name comment attrs mode subflds insert extract)
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)
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; For those who don't like typing.
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(define-pmacro dnmf
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"Shorthand form of define-normal-multi-ifield."
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define-normal-multi-ifield
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)
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; Simple multi-ifields: mode is UINT, default insert/extract support,
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; default encode/decode support.
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(define-pmacro (dsmf name comment attrs subflds)
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"Define a simple multi-part instruction field."
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(define-full-multi-ifield name comment attrs UINT subflds #f #f)
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)
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; Hardware.
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; Simpler version for most hardware elements.
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; Allow special assembler support specification but no semantic-name,
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; getter/setter, or layout specs.
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(define-pmacro (define-normal-hardware name comment attrs type
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indices values handlers)
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"Define a normal hardware element."
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(define-full-hardware name comment attrs name type
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indices values handlers () () ())
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)
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; For those who don't like typing.
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(define-pmacro dnh
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"Shorthand form of define-normal-hardware."
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define-normal-hardware
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)
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; Simpler version of dnh that leaves out the indices, values, handlers,
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; getter/setter, and layout specs.
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; This is useful for 1 bit registers.
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; ??? While dsh and dnh aren't that distinguishable when perusing a .cpu file,
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; they both take a fixed number of positional arguments, and dsh is a proper
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; subset of dnh with all arguments in the same positions, so methinks things
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; are ok.
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(define-pmacro (define-simple-hardware name comment attrs type)
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"Define a simple hardware element (usually a scalar register)."
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(define-full-hardware name comment attrs name type () () () () () ())
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)
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(define-pmacro dsh
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"Shorthand form of define-simple-hardware."
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define-simple-hardware
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)
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; Operands.
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; Simpler version for most operands.
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; Allow special assembler support specification but no handlers or
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; getter/setter specs.
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(define-pmacro (define-normal-operand name comment attrs type index)
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"Define a normal operand."
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(define-full-operand name comment attrs type DFLT index () () ())
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)
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; For those who don't like typing.
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(define-pmacro dno
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"Shorthand form of define-normal-operand."
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define-normal-operand
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)
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; Deprecated, but still in wide use.
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(define-pmacro dnop
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"Shorthand form of define-normal-operand."
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define-normal-operand
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)
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(define-pmacro (dndo x-name x-mode x-args
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x-syntax x-base-ifield x-encoding x-ifield-assertion
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x-getter x-setter)
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"Define a normal derived operand."
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(define-derived-operand
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(name x-name)
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(mode x-mode)
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(args x-args)
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(syntax x-syntax)
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(base-ifield x-base-ifield)
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(encoding x-encoding)
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(ifield-assertion x-ifield-assertion)
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(getter x-getter)
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(setter x-setter)
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)
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)
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; Instructions.
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; Define an instruction object, normal version.
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; At present all fields must be specified.
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; Fields ifield-assertion is absent.
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(define-pmacro (define-normal-insn name comment attrs syntax fmt semantics timing)
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"Define a normal instruction."
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(define-full-insn name comment attrs syntax fmt () semantics timing)
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)
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; To reduce the amount of typing.
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; Note that this is the same name as the D'ni in MYST. Oooohhhh.....
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; this must be the right way to go. :-)
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(define-pmacro dni
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"Shorthand form of define-normal-insn."
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define-normal-insn
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)
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; Macro instructions.
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; Define a macro-insn object, normal version.
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; This only supports expanding to one real insn.
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(define-pmacro (define-normal-macro-insn name comment attrs syntax expansion)
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"Define a normal macro instruction."
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(define-full-minsn name comment attrs syntax expansion)
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)
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; To reduce the amount of typing.
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(define-pmacro dnmi
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"Shorthand form of define-normal-macro-insn."
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define-normal-macro-insn
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)
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; Modes.
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; ??? Not currently available for use.
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;
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; Define Normal Mode
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;
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;(define-pmacro (define-normal-mode name comment attrs bits bytes
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; non-mode-c-type printf-type sem-mode ptr-to host?)
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; "Define a normal mode.\n"
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; (define-full-mode name comment attrs bits bytes
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; non-mode-c-type printf-type sem-mode ptr-to host?)
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;)
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;
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; For those who don't like typing.
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;(define-pmacro dnm
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; "Shorthand form of define-normal-mode.\n"
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; define-normal-mode
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;)
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