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Add << prefix to force 5 bit offsets in indexed modes
Rounding out the compliment of operand size prefixes, we now have "<<" to
mean "force 5 bits". According to Steve Bjork, this was the "official" way
to do this since 1980. However, I have no official Motorola source for
that. It does suggest that the choice of "<<" is consistent with other
(historical) assemblers, though.
Either way, it seems the most logical choice while avoiding any conflicts
with legal source code, so "<<" it is.
author | William Astle <lost@l-w.ca> |
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date | Mon, 23 Jul 2018 17:45:18 -0600 |
parents | 92cabf300986 |
children |
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#!/bin/sh # # # Copyright 2009 by William Astle <lost@l-w.ca> # #This file is part of LWTOOLS. # #LWTOOLS is free software: you can redistribute it and/or modify it under the #terms of the GNU General Public License as published by the Free Software #Foundation, either version 3 of the License, or (at your option) any later #version. # #This program is distributed in the hope that it will be useful, but WITHOUT #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #more details. # #You should have received a copy of the GNU General Public License along with #this program. If not, see <http://www.gnu.org/licenses/>. # this was based somewhat on the "ar" script from gcc6809 # This script is a frontend to the lwar library manager, to make it # look more like GNU ar. Not all ar features are supported here. # It basically translates ar style options into lwar format. # Parse and translate command-line options # ar options cheatsheet: # r: insert (with replace) # c: create archive # u: only replace newer files # v: verbose mode # x: extract files from archive options=$1; shift case $options in rc|cru|-rc|-cru) options="--replace --create" ;; rv) options="--replace" ;; x|-x) options="--extract" ;; -C|--cache) exit 0 ;; *) options="--replace --create $options" if [ "$libname" = "" ]; then libname=$options fi ;; esac if [ "x$options" = "x" ]; then echo "ar (m6809): no options given" exit 1 fi # Run the real lwar with translated options. # --nopaths is given to get the proper standard "ar" behaviour # which doesn't store path names exec lwar --nopaths $options $*