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      1 #!/bin/sh
      2 #	$NetBSD: asm2gas,v 1.9 2008/04/28 20:23:26 martin Exp $
      3 
      4 #
      5 # Copyright (c) 1998,2008 The NetBSD Foundation, Inc.
      6 # All rights reserved.
      7 #
      8 # This code is derived from software contributed to The NetBSD Foundation
      9 # by Charles M. Hannum.
     10 #
     11 # Redistribution and use in source and binary forms, with or without
     12 # modification, are permitted provided that the following conditions
     13 # are met:
     14 # 1. Redistributions of source code must retain the above copyright
     15 #    notice, this list of conditions and the following disclaimer.
     16 # 2. Redistributions in binary form must reproduce the above copyright
     17 #    notice, this list of conditions and the following disclaimer in the
     18 #    documentation and/or other materials provided with the distribution.
     19 #
     20 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30 # POSSIBILITY OF SUCH DAMAGE.
     31 #
     32 
     33 # This ugly script converts assembler code from Motorola's format to a
     34 # form that gas (MIT syntax) can digest.
     35 
     36 : ${SED:=sed}	# Which sed to use
     37 P=''		# Prefix for register names, may be '%' or ''
     38 
     39 cat "$1" | "${SED}" -e '
     40   # format canonicalization
     41 
     42   # leave "#include" alone; change "#" and "*" comment lines to use "|".
     43   /^\#include/{p;d;}
     44   /^\#/{s//|#/;p;d;}
     45   /^\*/{s//|/;p;d;}
     46   /[ 	]IDNT[ 	]/{s/^/|/;p;d;}
     47   s/;/|/
     48   /[ 	]equ[ 	]/{
     49     s/\([A-Za-z_][A-Za-z0-9_]*\)[ 	]*equ[ 	]*/\1,/
     50     s/[ 	][ 	]*\(.*\)$/		|\1/
     51     s/		||/		|/
     52     s/^/	.set	/
     53     p;d
     54   }
     55   s/^\([A-Za-z_][A-Za-z0-9_]*\)[ 	][ 	]*/\1:	/
     56   s/^\([A-Za-z_][A-Za-z0-9_]*\)$/\1:/
     57   /^[A-Za-z_][A-Za-z0-9_]*:/{
     58     h
     59     s/:.*$/:/
     60     p
     61     g
     62     s/^.*:[ 	]*/	/
     63     /^	$/d
     64   }
     65   /^[ 	][ 	]*\([.a-zA-Z][.a-zA-Z0-9]*\)/{
     66     h
     67     s///
     68     s/^[ 	][ 	]*//
     69     s/[ 	][ 	]*\(.*\)$/		|\1/
     70     s/		||/		|/
     71     x
     72     s/^[ 	][ 	]*//
     73     s/[ 	][ 	]*.*$/	/
     74     y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
     75     s/^/	/
     76     G
     77     s/\n//
     78   }
     79 ' | "${SED}" -e '
     80   # operator conversion
     81 
     82   s/^	section	7/	.text/
     83   s/^	section	8/	.text/
     84   s/^	section	15/	.data/
     85   /^	include/{s/include[ 	]/.include "/;s/\.h[ 	]*$/.defs"/;p;d;}
     86   s/^	xref/|	xref/
     87   s/^	end/|	end/
     88   s/^	xdef/	.global/
     89 
     90   s/^	dc\.l/	.long/
     91   s/^	dc\.w/	.short/
     92   s/^	dc\.b/	.byte/
     93 
     94   /^	[aceg-z]/{
     95     /^	add[aiqx]*\.[bwl]	/{s/\.//;p;d;}
     96     /^	andi*\.[bwl]	/{s/\.//;p;d;}
     97     /^	as[lr]\.[bwl]	/{s/\.//;p;d;}
     98     /^	clr\.[bwl]	/{s/\.//;p;d;}
     99     /^	cmp[i2]*\.[bwl]	/{s/\.//;p;d;}
    100     /^	eori*\.[bwl]	/{s/\.//;p;d;}
    101     /^	lea\.l	/{s/\..//;p;d;}
    102     /^	ls[lr]\.[bwl]	/{s/\.//;p;d;}
    103     /^	move[acmqs]*\.[bwl]	/{s/\.//;p;d;}
    104     /^	mul[su]\.[wl]	/{s/\.//;p;d;}
    105     /^	neg\.[bwl]	/{s/\.//;p;d;}
    106     /^	ori*\.[bwl]	/{s/\.//;p;d;}
    107     /^	ro[lrx]*\.[bwl]	/{s/\.//;p;d;}
    108     /^	sub[aiqx]*\.[bwl]	/{s/\.//;p;d;}
    109     /^	swap\.w	/{s/\..//;p;d;}
    110     /^	s\([a-tv-z][a-z]*\)\.b	/{s/\..//;p;d;}
    111     /^	tst\.[bwl]	/{s/\.//;p;d;}
    112     p;d
    113   }
    114 
    115   /^	bchg\.[bl]	/{s/\..//;p;d;}
    116   /^	bclr\.[bl]	/{s/\..//;p;d;}
    117   /^	bset\.[bl]	/{s/\..//;p;d;}
    118   /^	btst\.[bl]	/{s/\..//;p;d;}
    119   /^	div[sul]*\.[wl]	/{s/\.//;p;d;}
    120   /^	fabs\.[sdx]	/{s/\.//;p;d;}
    121   /^	fadd\.[sdxbwl]	/{s/\.//;p;d;}
    122   /^	fcmp\.[sdxbwl]	/{s/\.//;p;d;}
    123   /^	fdiv\.[sdx]	/{s/\.//;p;d;}
    124   /^	fmove[mx]*\.[sdxbwl]	/{s/\.//;p;d;}
    125   /^	fmul\.[sdx]	/{s/\.//;p;d;}
    126   /^	fneg\.[sdx]	/{s/\.//;p;d;}
    127   /^	fsqrt\.[sdx]	/{s/\.//;p;d;}
    128   /^	fsub\.[sdxbwl]	/{s/\.//;p;d;}
    129   /^	ftst\.[sdx]	/{s/\.//;p;d;}
    130 
    131   /^	b[a-eg-z][a-z]*\.b	/{s/\.b/s/;p;d;}
    132   /^	b[a-eg-z][a-z]*\.w	/{s/\.w//;p;d;}
    133   /^	b[a-eg-z][a-z]*\.l	/{s/\.l/l/;p;d;}
    134   /^	db[a-z][a-z]*\.w	/{s/\.w//;p;d;}
    135   /^	fb[a-eg-z][a-z]*\.w	/{s/\.w//;p;d;}
    136   /^	fb[a-eg-z][a-z]*\.l	/{s/\.l/l/;p;d;}
    137 ' | "${SED}" -e '
    138   # operand conversion
    139 
    140   # register names "FPIAR" -> "%FPI", etc., possibly without the "%"
    141   s/\([^_a-zA-Z0-9]\)FPIAR\([^_a-zA-Z0-9]\)/\1'"$P"'FPI\2/g
    142   s/\([^_a-zA-Z0-9]\)FPIAR$/\1'"$P"'FPI/g
    143   s/\([^_a-zA-Z0-9]\)fpiar\([^_a-zA-Z0-9]\)/\1'"$P"'fpi\2/g
    144   s/\([^_a-zA-Z0-9]\)fpiar$/\1'"$P"'fpi/g
    145   s/\([^_a-zA-Z0-9]\)FPCR\([^_a-zA-Z0-9]\)/\1'"$P"'FPCR\2/g
    146   s/\([^_a-zA-Z0-9]\)FPCR$/\1'"$P"'FPCR/g
    147   s/\([^_a-zA-Z0-9]\)fpcr\([^_a-zA-Z0-9]\)/\1'"$P"'fpcr\2/g
    148   s/\([^_a-zA-Z0-9]\)fpcr$/\1'"$P"'fpcr/g
    149   s/\([^_a-zA-Z0-9]\)FPSR\([^_a-zA-Z0-9]\)/\1'"$P"'FPSR\2/g
    150   s/\([^_a-zA-Z0-9]\)FPSR$/\1'"$P"'FPSR/g
    151   s/\([^_a-zA-Z0-9]\)fpsr\([^_a-zA-Z0-9]\)/\1'"$P"'fpsr\2/g
    152   s/\([^_a-zA-Z0-9]\)fpsr$/\1'"$P"'fpsr/g
    153 
    154   # Hexadecimal numbers
    155   s/\$\([0-9a-fA-F]\)/0x\1/g
    156   s/#:/#:0x/g
    157 
    158   # Insert "%" before more register names (only if $P = "%").
    159   # Some of the rules are repeated because of overlap between trailing
    160   # context in one match and leading context in another match; otherwise
    161   # only half the register names in "d4{d3:4},d0" would be converted.
    162   s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    163   s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    164   s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    165   s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    166 
    167   s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    168   s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    169   s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    170   s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
    171 
    172   s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
    173   s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
    174   s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)$/\1'"$P"'\2/g
    175   s/\([^[:alnum:]_%]\)\(sp\)$/\1'"$P"'\2/g
    176 
    177   s/\(,\)\([dDaA][0-7]\)/\1'"$P"'\2/g
    178   s/\(,\)\([fF][pP][0-7]\)/\1'"$P"'\2/g
    179 
    180   # "-(%sp)" -> "%sp@-", etc. (possibly without the "%")
    181   s/-(\('"$P"'[sSpPaA][pPcC0-7]\))/\1@-/g
    182   # "(%sp)+" -> "%sp@+", etc. (possibly without the "%")
    183   s/(\('"$P"'[sSpPaA][pPcC0-7]\))+/\1@+/g
    184   # "foo(%sp,...)" -> "%sp@(foo,...)", etc. (possibly without the "%")
    185   s/\([-+A-Za-z0-9_]*\)(\('"$P"'[sSpPaA][pPcC0-7]\)\([),]\)/\2@(\1\3/g
    186 
    187   # ".w" -> ":w"; ".w*nn" -> ":w:nn"; "*nn" -> ":l:nn"; etc.
    188   s/\.\([bBwWlL])\)/:\1/g
    189   s/\.\([bBwWlL]\)\*\([0-9][0-9]*)\)/:\1:\2/g
    190   s/\*\([0-9][0-9]*\))/:l:\1)/g
    191   # "{nn:mm}" -> "{#nn:#mm}"
    192   s/{\([0-9][0-9]*\):\([0-9][0-9]*\)}/{#\1:#\2}/g
    193   # "{%d0:nn}" -> "{%d0:#nn}", etc. (possibly without the "%")
    194   s/{\('"$P"'[dD][0-7]\):\([0-9][0-9]*\)}/{\1:#\2}/g
    195 
    196   # Remove empty "()" or "(0)" after "@"
    197   s/@(0*)/@/g
    198   # Remove leading "," or trailing ":" in parentheses
    199   s/(,/(/g;s/:)/)/g
    200 
    201   # make up for a gas bug
    202   /^	fmovemx	/{
    203 	s/	\('"$P"'[fF][pP][0-7]\),/	\1-\1,/
    204 	s/,\('"$P"'[fF][pP][0-7]\)	/,\1-\1	/
    205 	s/,\('"$P"'[fF][pP][0-7]\)$/,\1-\1/
    206   }
    207 '
    208