208 lines
6.9 KiB
Bash
208 lines
6.9 KiB
Bash
#!/bin/sh
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# $NetBSD: asm2gas,v 1.9 2008/04/28 20:23:26 martin Exp $
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#
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# Copyright (c) 1998,2008 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Charles M. Hannum.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# This ugly script converts assembler code from Motorola's format to a
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# form that gas (MIT syntax) can digest.
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: ${SED:=sed} # Which sed to use
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P='' # Prefix for register names, may be '%' or ''
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cat "$1" | "${SED}" -e '
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# format canonicalization
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# leave "#include" alone; change "#" and "*" comment lines to use "|".
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/^\#include/{p;d;}
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/^\#/{s//|#/;p;d;}
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/^\*/{s//|/;p;d;}
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/[ ]IDNT[ ]/{s/^/|/;p;d;}
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s/;/|/
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/[ ]equ[ ]/{
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s/\([A-Za-z_][A-Za-z0-9_]*\)[ ]*equ[ ]*/\1,/
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s/[ ][ ]*\(.*\)$/ |\1/
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s/ ||/ |/
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s/^/ .set /
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p;d
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}
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s/^\([A-Za-z_][A-Za-z0-9_]*\)[ ][ ]*/\1: /
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s/^\([A-Za-z_][A-Za-z0-9_]*\)$/\1:/
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/^[A-Za-z_][A-Za-z0-9_]*:/{
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h
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s/:.*$/:/
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p
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g
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s/^.*:[ ]*/ /
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/^ $/d
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}
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/^[ ][ ]*\([.a-zA-Z][.a-zA-Z0-9]*\)/{
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h
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s///
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s/^[ ][ ]*//
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s/[ ][ ]*\(.*\)$/ |\1/
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s/ ||/ |/
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x
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s/^[ ][ ]*//
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s/[ ][ ]*.*$/ /
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y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
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s/^/ /
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G
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s/\n//
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}
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' | "${SED}" -e '
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# operator conversion
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s/^ section 7/ .text/
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s/^ section 8/ .text/
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s/^ section 15/ .data/
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/^ include/{s/include[ ]/.include "/;s/\.h[ ]*$/.defs"/;p;d;}
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s/^ xref/| xref/
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s/^ end/| end/
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s/^ xdef/ .global/
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s/^ dc\.l/ .long/
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s/^ dc\.w/ .short/
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s/^ dc\.b/ .byte/
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/^ [aceg-z]/{
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/^ add[aiqx]*\.[bwl] /{s/\.//;p;d;}
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/^ andi*\.[bwl] /{s/\.//;p;d;}
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/^ as[lr]\.[bwl] /{s/\.//;p;d;}
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/^ clr\.[bwl] /{s/\.//;p;d;}
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/^ cmp[i2]*\.[bwl] /{s/\.//;p;d;}
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/^ eori*\.[bwl] /{s/\.//;p;d;}
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/^ lea\.l /{s/\..//;p;d;}
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/^ ls[lr]\.[bwl] /{s/\.//;p;d;}
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/^ move[acmqs]*\.[bwl] /{s/\.//;p;d;}
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/^ mul[su]\.[wl] /{s/\.//;p;d;}
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/^ neg\.[bwl] /{s/\.//;p;d;}
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/^ ori*\.[bwl] /{s/\.//;p;d;}
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/^ ro[lrx]*\.[bwl] /{s/\.//;p;d;}
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/^ sub[aiqx]*\.[bwl] /{s/\.//;p;d;}
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/^ swap\.w /{s/\..//;p;d;}
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/^ s\([a-tv-z][a-z]*\)\.b /{s/\..//;p;d;}
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/^ tst\.[bwl] /{s/\.//;p;d;}
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p;d
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}
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/^ bchg\.[bl] /{s/\..//;p;d;}
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/^ bclr\.[bl] /{s/\..//;p;d;}
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/^ bset\.[bl] /{s/\..//;p;d;}
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/^ btst\.[bl] /{s/\..//;p;d;}
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/^ div[sul]*\.[wl] /{s/\.//;p;d;}
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/^ fabs\.[sdx] /{s/\.//;p;d;}
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/^ fadd\.[sdxbwl] /{s/\.//;p;d;}
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/^ fcmp\.[sdxbwl] /{s/\.//;p;d;}
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/^ fdiv\.[sdx] /{s/\.//;p;d;}
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/^ fmove[mx]*\.[sdxbwl] /{s/\.//;p;d;}
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/^ fmul\.[sdx] /{s/\.//;p;d;}
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/^ fneg\.[sdx] /{s/\.//;p;d;}
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/^ fsqrt\.[sdx] /{s/\.//;p;d;}
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/^ fsub\.[sdxbwl] /{s/\.//;p;d;}
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/^ ftst\.[sdx] /{s/\.//;p;d;}
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/^ b[a-eg-z][a-z]*\.b /{s/\.b/s/;p;d;}
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/^ b[a-eg-z][a-z]*\.w /{s/\.w//;p;d;}
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/^ b[a-eg-z][a-z]*\.l /{s/\.l/l/;p;d;}
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/^ db[a-z][a-z]*\.w /{s/\.w//;p;d;}
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/^ fb[a-eg-z][a-z]*\.w /{s/\.w//;p;d;}
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/^ fb[a-eg-z][a-z]*\.l /{s/\.l/l/;p;d;}
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' | "${SED}" -e '
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# operand conversion
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# register names "FPIAR" -> "%FPI", etc., possibly without the "%"
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s/\([^_a-zA-Z0-9]\)FPIAR\([^_a-zA-Z0-9]\)/\1'"$P"'FPI\2/g
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s/\([^_a-zA-Z0-9]\)FPIAR$/\1'"$P"'FPI/g
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s/\([^_a-zA-Z0-9]\)fpiar\([^_a-zA-Z0-9]\)/\1'"$P"'fpi\2/g
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s/\([^_a-zA-Z0-9]\)fpiar$/\1'"$P"'fpi/g
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s/\([^_a-zA-Z0-9]\)FPCR\([^_a-zA-Z0-9]\)/\1'"$P"'FPCR\2/g
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s/\([^_a-zA-Z0-9]\)FPCR$/\1'"$P"'FPCR/g
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s/\([^_a-zA-Z0-9]\)fpcr\([^_a-zA-Z0-9]\)/\1'"$P"'fpcr\2/g
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s/\([^_a-zA-Z0-9]\)fpcr$/\1'"$P"'fpcr/g
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s/\([^_a-zA-Z0-9]\)FPSR\([^_a-zA-Z0-9]\)/\1'"$P"'FPSR\2/g
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s/\([^_a-zA-Z0-9]\)FPSR$/\1'"$P"'FPSR/g
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s/\([^_a-zA-Z0-9]\)fpsr\([^_a-zA-Z0-9]\)/\1'"$P"'fpsr\2/g
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s/\([^_a-zA-Z0-9]\)fpsr$/\1'"$P"'fpsr/g
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# Hexadecimal numbers
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s/\$\([0-9a-fA-F]\)/0x\1/g
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s/#:/#:0x/g
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# Insert "%" before more register names (only if $P = "%").
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# Some of the rules are repeated because of overlap between trailing
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# context in one match and leading context in another match; otherwise
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# only half the register names in "d4{d3:4},d0" would be converted.
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s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
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s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
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s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
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s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)$/\1'"$P"'\2/g
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s/\([^[:alnum:]_%]\)\(sp\)$/\1'"$P"'\2/g
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s/\(,\)\([dDaA][0-7]\)/\1'"$P"'\2/g
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s/\(,\)\([fF][pP][0-7]\)/\1'"$P"'\2/g
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# "-(%sp)" -> "%sp@-", etc. (possibly without the "%")
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s/-(\('"$P"'[sSpPaA][pPcC0-7]\))/\1@-/g
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# "(%sp)+" -> "%sp@+", etc. (possibly without the "%")
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s/(\('"$P"'[sSpPaA][pPcC0-7]\))+/\1@+/g
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# "foo(%sp,...)" -> "%sp@(foo,...)", etc. (possibly without the "%")
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s/\([-+A-Za-z0-9_]*\)(\('"$P"'[sSpPaA][pPcC0-7]\)\([),]\)/\2@(\1\3/g
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# ".w" -> ":w"; ".w*nn" -> ":w:nn"; "*nn" -> ":l:nn"; etc.
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s/\.\([bBwWlL])\)/:\1/g
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s/\.\([bBwWlL]\)\*\([0-9][0-9]*)\)/:\1:\2/g
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s/\*\([0-9][0-9]*\))/:l:\1)/g
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# "{nn:mm}" -> "{#nn:#mm}"
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s/{\([0-9][0-9]*\):\([0-9][0-9]*\)}/{#\1:#\2}/g
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# "{%d0:nn}" -> "{%d0:#nn}", etc. (possibly without the "%")
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s/{\('"$P"'[dD][0-7]\):\([0-9][0-9]*\)}/{\1:#\2}/g
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# Remove empty "()" or "(0)" after "@"
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s/@(0*)/@/g
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# Remove leading "," or trailing ":" in parentheses
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s/(,/(/g;s/:)/)/g
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# make up for a gas bug
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/^ fmovemx /{
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s/ \('"$P"'[fF][pP][0-7]\),/ \1-\1,/
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s/,\('"$P"'[fF][pP][0-7]\) /,\1-\1 /
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s/,\('"$P"'[fF][pP][0-7]\)$/,\1-\1/
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}
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'
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