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#!/bin/sh
#	$NetBSD: asm2gas,v 1.6 1998/08/15 03:51:31 mycroft Exp $

#
# Copyright (c) 1998 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Charles M. Hannum.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#        This product includes software developed by the NetBSD
#        Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
#    contributors may be used to endorse or promote products derived
#    from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

# This ugly script converts assembler code from Motorola's format to a
# form that gas (MIT syntax) can digest.

cat $1 | sed -e '
  # format canonicalization

  s/^#/|#/
  /[ 	]IDNT[ 	]/{s/^/|/;p;d;}
  /^\*/{s//|/;p;d;}
  s/;/|/
  /[ 	]equ[ 	]/{
    s/\([A-Za-z_][A-Za-z0-9_]*\)[ 	]*equ[ 	]*/\1,/
    s/[ 	][ 	]*\(.*\)$/		|\1/
    s/		||/		|/
    s/^/	.set	/
    p;d
  }
  s/^\([A-Za-z_][A-Za-z0-9_]*\)[ 	][ 	]*/\1:	/
  s/^\([A-Za-z_][A-Za-z0-9_]*\)$/\1:/
  /^[A-Za-z_][A-Za-z0-9_]*:/{
    h
    s/:.*$/:/
    p
    g
    s/^.*:[ 	]*/	/
    /^	$/d
  }
  /^[ 	][ 	]*\([.a-zA-Z][.a-zA-Z0-9]*\)/{
    h
    s///
    s/^[ 	][ 	]*//
    s/[ 	][ 	]*\(.*\)$/		|\1/
    s/		||/		|/
    x
    s/^[ 	][ 	]*//
    s/[ 	][ 	]*.*$/	/
    y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
    s/^/	/
    G
    s/\n//
  }
' | sed -e '
  # operator conversion

  s/^	section	7/	.text/
  s/^	section	8/	.text/
  s/^	section	15/	.data/
  /^	include/{s/include[ 	]/.include "/;s/\.h[ 	]*$/.defs"/;p;d;}
  s/^	xref/|	xref/
  s/^	end/|	end/
  s/^	xdef/	.global/

  s/^	dc\.l/	.long/
  s/^	dc\.w/	.short/
  s/^	dc\.b/	.byte/

  /^	[aceg-z]/{
    /^	add[aiqx]*\.[bwl]	/{s/\.//;p;d;}
    /^	andi*\.[bwl]	/{s/\.//;p;d;}
    /^	as[lr]\.[bwl]	/{s/\.//;p;d;}
    /^	clr\.[bwl]	/{s/\.//;p;d;}
    /^	cmp[i2]*\.[bwl]	/{s/\.//;p;d;}
    /^	eori*\.[bwl]	/{s/\.//;p;d;}
    /^	lea\.l	/{s/\..//;p;d;}
    /^	ls[lr]\.[bwl]	/{s/\.//;p;d;}
    /^	move[acmqs]*\.[bwl]	/{s/\.//;p;d;}
    /^	mul[su]\.[wl]	/{s/\.//;p;d;}
    /^	neg\.[bwl]	/{s/\.//;p;d;}
    /^	ori*\.[bwl]	/{s/\.//;p;d;}
    /^	ro[lrx]*\.[bwl]	/{s/\.//;p;d;}
    /^	sub[aiqx]*\.[bwl]	/{s/\.//;p;d;}
    /^	swap\.w	/{s/\..//;p;d;}
    /^	s\([a-tv-z][a-z]*\)\.b	/{s/\..//;p;d;}
    /^	tst\.[bwl]	/{s/\.//;p;d;}
    p;d
  }

  /^	bchg\.[bl]	/{s/\..//;p;d;}
  /^	bclr\.[bl]	/{s/\..//;p;d;}
  /^	bset\.[bl]	/{s/\..//;p;d;}
  /^	btst\.[bl]	/{s/\..//;p;d;}
  /^	div[sul]*\.[wl]	/{s/\.//;p;d;}
  /^	fabs\.[sdx]	/{s/\.//;p;d;}
  /^	fadd\.[sdxbwl]	/{s/\.//;p;d;}
  /^	fcmp\.[sdxbwl]	/{s/\.//;p;d;}
  /^	fdiv\.[sdx]	/{s/\.//;p;d;}
  /^	fmove[mx]*\.[sdxbwl]	/{s/\.//;p;d;}
  /^	fmul\.[sdx]	/{s/\.//;p;d;}
  /^	fneg\.[sdx]	/{s/\.//;p;d;}
  /^	fsqrt\.[sdx]	/{s/\.//;p;d;}
  /^	fsub\.[sdxbwl]	/{s/\.//;p;d;}
  /^	ftst\.[sdx]	/{s/\.//;p;d;}

  /^	b[a-eg-z][a-z]*\.b	/{s/\.b/s/;p;d;}
  /^	b[a-eg-z][a-z]*\.w	/{s/\.w//;p;d;}
  /^	b[a-eg-z][a-z]*\.l	/{s/\.l/l/;p;d;}
  /^	db[a-z][a-z]*\.w	/{s/\.w//;p;d;}
  /^	fb[a-eg-z][a-z]*\.w	/{s/\.w//;p;d;}
  /^	fb[a-eg-z][a-z]*\.l	/{s/\.l/l/;p;d;}
' | sed -e '
  # operand conversion

  s/\([^_a-zA-Z0-9]\)FPIAR\([^_a-zA-Z0-9]\)/\1FPI\2/g
  s/\([^_a-zA-Z0-9]\)FPIAR\([^_a-zA-Z0-9]\)/\1FPI\2/g
  s/\([^_a-zA-Z0-9]\)FPIAR$/\1FPI/g
  s/\([^_a-zA-Z0-9]\)fpiar\([^_a-zA-Z0-9]\)/\1fpi\2/g
  s/\([^_a-zA-Z0-9]\)fpiar\([^_a-zA-Z0-9]\)/\1fpi\2/g
  s/\([^_a-zA-Z0-9]\)fpiar$/\1fpi/g

  s/\$\([0-9a-fA-F]\)/0x\1/g
  s/#:/#:0x/g

  s/-(\([sSpPaA][pPcC0-7]\))/\1@-/g
  s/(\([sSpPaA][pPcC0-7]\))+/\1@+/g
  s/\([-+A-Za-z0-9_]*\)(\([sSpPaA][pPcC0-7]\)\([),]\)/\2@(\1\3/g

  s/\.\([bBwWlL])\)/:\1/g
  s/\.\([bBwWlL]\)\*\([0-9][0-9]*)\)/:\1:\2/g
  s/\*\([0-9][0-9]*\))/:l:\1)/g
  s/{\([0-9][0-9]*\):\([0-9][0-9]*\)}/{#\1:#\2}/g
  s/{\([dD][0-7]\):\([0-9][0-9]*\)}/{\1:#\2}/g

  s/@(0*)/@/g
  s/(,/(/g;s/:)/)/g

  # make up for a gas bug
  /^	fmovemx	/{
	s/	\([fF][pP][0-7]\),/	\1-\1,/
	s/,\([fF][pP][0-7]\)	/,\1-\1	/
	s/,\([fF][pP][0-7]\)$/,\1-\1/
  }
'