#!/bin/sh
# $NetBSD: asm2gas,v 1.10 2008/04/28 20:23:26 martin Exp $
#
# Copyright (c) 1998,2008 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.
#
# 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.
: ${SED:=sed} # Which sed to use
P='%' # Prefix for register names, may be '%' or ''
cat "$1" | "${SED}" -e '
# format canonicalization
# leave "#include" alone; change "#" and "*" comment lines to use "|".
/^\#include/{p;d;}
/^\#/{s//|#/;p;d;}
/^\*/{s//|/;p;d;}
/[ ]IDNT[ ]/{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
# register names "FPIAR" -> "%FPI", etc., possibly without the "%"
s/\([^_a-zA-Z0-9]\)FPIAR\([^_a-zA-Z0-9]\)/\1'"$P"'FPI\2/g
s/\([^_a-zA-Z0-9]\)FPIAR$/\1'"$P"'FPI/g
s/\([^_a-zA-Z0-9]\)fpiar\([^_a-zA-Z0-9]\)/\1'"$P"'fpi\2/g
s/\([^_a-zA-Z0-9]\)fpiar$/\1'"$P"'fpi/g
s/\([^_a-zA-Z0-9]\)FPCR\([^_a-zA-Z0-9]\)/\1'"$P"'FPCR\2/g
s/\([^_a-zA-Z0-9]\)FPCR$/\1'"$P"'FPCR/g
s/\([^_a-zA-Z0-9]\)fpcr\([^_a-zA-Z0-9]\)/\1'"$P"'fpcr\2/g
s/\([^_a-zA-Z0-9]\)fpcr$/\1'"$P"'fpcr/g
s/\([^_a-zA-Z0-9]\)FPSR\([^_a-zA-Z0-9]\)/\1'"$P"'FPSR\2/g
s/\([^_a-zA-Z0-9]\)FPSR$/\1'"$P"'FPSR/g
s/\([^_a-zA-Z0-9]\)fpsr\([^_a-zA-Z0-9]\)/\1'"$P"'fpsr\2/g
s/\([^_a-zA-Z0-9]\)fpsr$/\1'"$P"'fpsr/g
# Hexadecimal numbers
s/\$\([0-9a-fA-F]\)/0x\1/g
s/#:/#:0x/g
# Insert "%" before more register names (only if $P = "%").
# Some of the rules are repeated because of overlap between trailing
# context in one match and leading context in another match; otherwise
# only half the register names in "d4{d3:4},d0" would be converted.
s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\(sp\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\(pc\)\([^[:alnum:]_]\)/\1'"$P"'\2\3/g
s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
s/\([^[:alnum:]_%]\)\([dDaA][0-7]\)$/\1'"$P"'\2/g
s/\([^[:alnum:]_%]\)\([fF][pP][0-7]\)$/\1'"$P"'\2/g
s/\([^[:alnum:]_%]\)\(sp\)$/\1'"$P"'\2/g
s/\(,\)\([dDaA][0-7]\)/\1'"$P"'\2/g
s/\(,\)\([fF][pP][0-7]\)/\1'"$P"'\2/g
# "-(%sp)" -> "%sp@-", etc. (possibly without the "%")
s/-(\('"$P"'[sSpPaA][pPcC0-7]\))/\1@-/g
# "(%sp)+" -> "%sp@+", etc. (possibly without the "%")
s/(\('"$P"'[sSpPaA][pPcC0-7]\))+/\1@+/g
# "foo(%sp,...)" -> "%sp@(foo,...)", etc. (possibly without the "%")
s/\([-+A-Za-z0-9_]*\)(\('"$P"'[sSpPaA][pPcC0-7]\)\([),]\)/\2@(\1\3/g
# ".w" -> ":w"; ".w*nn" -> ":w:nn"; "*nn" -> ":l:nn"; etc.
s/\.\([bBwWlL])\)/:\1/g
s/\.\([bBwWlL]\)\*\([0-9][0-9]*)\)/:\1:\2/g
s/\*\([0-9][0-9]*\))/:l:\1)/g
# "{nn:mm}" -> "{#nn:#mm}"
s/{\([0-9][0-9]*\):\([0-9][0-9]*\)}/{#\1:#\2}/g
# "{%d0:nn}" -> "{%d0:#nn}", etc. (possibly without the "%")
s/{\('"$P"'[dD][0-7]\):\([0-9][0-9]*\)}/{\1:#\2}/g
# Remove empty "()" or "(0)" after "@"
s/@(0*)/@/g
# Remove leading "," or trailing ":" in parentheses
s/(,/(/g;s/:)/)/g
# make up for a gas bug
/^ fmovemx /{
s/ \('"$P"'[fF][pP][0-7]\),/ \1-\1,/
s/,\('"$P"'[fF][pP][0-7]\) /,\1-\1 /
s/,\('"$P"'[fF][pP][0-7]\)$/,\1-\1/
}
' | "${SED}" -e '
# Floating point literal conversion
s/:0x41dfffffffc00000/0r2147483647.0/g
s/:0xc1e0000000000000/0r-2147483648.0/g
s/:0x41dfffffffe00000/0r2147483647.5/g
s/:0xc1e0000000100000/0r-2147483648.5/g
s/:0x46fffe00/0r32767.0/g
s/:0xc7000000/0r-32768.0/g
s/:0x46ffff00/0r32767.5/g
s/:0xc7000080/0r-32768.5/g
s/:0x42fe0000/0r127.0/g
s/:0xc3000000/0r-128.0/g
s/:0x42ff0000/0r127.5/g
s/:0xc3008000/0r-128.5/g
s/:0x3F800000/0r1.0/g
s/:0x00000000/0r0.0/g
s/:0xBF800000/0r-1.0/g
s/:0x3F000000/0r0.5/g
s/:0x3E800000/0r0.25/g
s/:0x42B8AA3B/0r92.332481384277343750/g
s/:0xBC317218/0r-0.0108304247260093688964843750/g
s/:0x3AB60B70/0r0.001388890668749809265136718750/g
s/:0x3C088895/0r0.0083333449438214302062988281250/g
s/:0x42B8AA3B/0r92.332481384277343750/g
s/:0x3950097B/0r0.0001983995753107592463493347167968750/g
s/:0x3AB60B6A/0r0.001388889970257878303527832031250/g
s/:0x2F30CAA8/0r1.60791047143504783889511600136756896972656250e-10/g
s/:0x310F8290/0r2.0883454965314740547910332679748535156250e-09/g
s/:0x32D73220/0r2.5052088403754169121384620666503906250e-08/g
s/:0x3493F281/0r2.755732850800995947793126106262207031250e-07/g
s/:0x40000000/0r2.0/g
s/:0x42800000/0r6.40e+01/g
s/:0x3C800000/0r1.56250e-02/g
s/fadds #:0x00800000,'"$P"'[fF][pP]0/ .long 0xf23c4422,0x00800000/
s/fsubs #:0x00800000,'"$P"'[fF][pP]0/ .long 0xf23c4428,0x00800000/
s/fsubs #:0x00800000,'"$P"'[fF][pP]1/ .long 0xf23c44a8,0x00800000/
s/fmoves #:0x80000000,'"$P"'[fF][pP]0/ .long 0xf23c4400,0x80000000/
s/fmoves #:0x00000000,'"$P"'[fF][pP]0/ .long 0xf23c4400,0x00000000/
'