segmentation.py revision 5292:a26311673ef0
12068SN/A# Copyright (c) 2007 The Hewlett-Packard Development Company 22068SN/A# All rights reserved. 32068SN/A# 42068SN/A# Redistribution and use of this software in source and binary forms, 52068SN/A# with or without modification, are permitted provided that the 62068SN/A# following conditions are met: 72068SN/A# 82068SN/A# The software must be used only for Non-Commercial Use which means any 92068SN/A# use which is NOT directed to receiving any direct monetary 102068SN/A# compensation for, or commercial advantage from such use. Illustrative 112068SN/A# examples of non-commercial use are academic research, personal study, 122068SN/A# teaching, education and corporate research & development. 132068SN/A# Illustrative examples of commercial use are distributing products for 142068SN/A# commercial advantage and providing services using the software for 152068SN/A# commercial advantage. 162068SN/A# 172068SN/A# If you wish to use this software or functionality therein that may be 182068SN/A# covered by patents for commercial use, please contact: 192068SN/A# Director of Intellectual Property Licensing 202068SN/A# Office of Strategy and Technology 212068SN/A# Hewlett-Packard Company 222068SN/A# 1501 Page Mill Road 232068SN/A# Palo Alto, California 94304 242068SN/A# 252068SN/A# Redistributions of source code must retain the above copyright notice, 262068SN/A# this list of conditions and the following disclaimer. Redistributions 272068SN/A# in binary form must reproduce the above copyright notice, this list of 282665Ssaidi@eecs.umich.edu# conditions and the following disclaimer in the documentation and/or 292665Ssaidi@eecs.umich.edu# other materials provided with the distribution. Neither the name of 302068SN/A# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 312649Ssaidi@eecs.umich.edu# contributors may be used to endorse or promote products derived from 322649Ssaidi@eecs.umich.edu# this software without specific prior written permission. No right of 332649Ssaidi@eecs.umich.edu# sublicense is granted herewith. Derivatives of the software and 342649Ssaidi@eecs.umich.edu# output created using the software may be prepared, but only for 352649Ssaidi@eecs.umich.edu# Non-Commercial Uses. Derivatives of the software may be shared with 362068SN/A# others provided: (i) the others agree to abide by the list of 372068SN/A# conditions herein which includes the Non-Commercial Use restrictions; 382068SN/A# and (ii) such Derivatives of the software include the above copyright 392068SN/A# notice to acknowledge the contribution from this software where 402068SN/A# applicable, this list of conditions and the disclaimer below. 412068SN/A# 422068SN/A# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 432068SN/A# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 442068SN/A# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 452068SN/A# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 462068SN/A# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 472227SN/A# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 482068SN/A# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 492068SN/A# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 502068SN/A# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 512068SN/A# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 5212616Sgabeblack@google.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 5312616Sgabeblack@google.com# 542068SN/A# Authors: Gabe Black 552068SN/A 562068SN/Amicrocode = ''' 572068SN/Adef macroop LGDT_M 582068SN/A{ 592068SN/A .adjust_env oszForPseudoDesc 602068SN/A 612068SN/A # Get the limit 622068SN/A ld t1, seg, sib, disp, dataSize=2 632068SN/A # Get the base 642068SN/A ld t2, seg, sib, 'adjustedDisp + 2' 652068SN/A wrbase gdtr, t2 662068SN/A wrlimit gdtr, t1 672068SN/A}; 682068SN/A 692068SN/Adef macroop LGDT_P 702068SN/A{ 712068SN/A .adjust_env oszForPseudoDesc 722068SN/A 732068SN/A rdip t7 742068SN/A # Get the limit 752068SN/A ld t1, seg, riprel, disp, dataSize=2 762068SN/A # Get the base 772068SN/A ld t2, seg, riprel, 'adjustedDisp + 2' 782068SN/A wrbase gdtr, t2 792068SN/A wrlimit gdtr, t1 802068SN/A}; 812068SN/A 822068SN/A# 832068SN/A# These versions are for when the original data size was 16 bits. The base is 842068SN/A# still 32 bits, but the top byte is zeroed before being used. 852068SN/A# 862068SN/A 872068SN/Adef macroop LGDT_16_M 882068SN/A{ 892068SN/A .adjust_env oszForPseudoDesc 902068SN/A 912068SN/A # Get the limit 922068SN/A ld t1, seg, sib, disp, dataSize=2 932068SN/A # Get the base 942068SN/A ld t2, seg, sib, 'adjustedDisp + 2', dataSize=4 952068SN/A zexti t2, t2, 23 962068SN/A wrbase gdtr, t2 972068SN/A wrlimit gdtr, t1 982068SN/A}; 992068SN/A 1002068SN/Adef macroop LGDT_16_P 1012068SN/A{ 1022068SN/A .adjust_env oszForPseudoDesc 1032068SN/A 1042068SN/A rdip t7 1052068SN/A # Get the limit 1062068SN/A ld t1, seg, riprel, disp, dataSize=2 1072068SN/A # Get the base 1082068SN/A ld t2, seg, riprel, 'adjustedDisp + 2', dataSize=4 1092068SN/A zexti t2, t2, 23 1102068SN/A wrbase gdtr, t2 1112068SN/A wrlimit gdtr, t1 1122068SN/A}; 1138588Sgblack@eecs.umich.edu 1142068SN/Adef macroop LIDT_M 1152068SN/A{ 1163953Sstever@eecs.umich.edu .adjust_env oszForPseudoDesc 1172068SN/A 1182068SN/A # Get the limit 1192068SN/A ld t1, seg, sib, disp, dataSize=2 1202068SN/A # Get the base 1212068SN/A ld t2, seg, sib, 'adjustedDisp + 2' 1222068SN/A wrbase idtr, t2 1233953Sstever@eecs.umich.edu wrlimit idtr, t1 1242068SN/A}; 1252068SN/A 1262068SN/Adef macroop LIDT_P 1272068SN/A{ 1282068SN/A .adjust_env oszForPseudoDesc 1292068SN/A 1302068SN/A rdip t7 1312068SN/A # Get the limit 1322068SN/A ld t1, seg, riprel, disp, dataSize=2 1332068SN/A # Get the base 134 ld t2, seg, riprel, 'adjustedDisp + 2' 135 wrbase idtr, t2 136 wrlimit idtr, t1 137}; 138 139# 140# These versions are for when the original data size was 16 bits. The base is 141# still 32 bits, but the top byte is zeroed before being used. 142# 143 144def macroop LIDT_16_M 145{ 146 .adjust_env oszForPseudoDesc 147 148 # Get the limit 149 ld t1, seg, sib, disp, dataSize=2 150 # Get the base 151 ld t2, seg, sib, 'adjustedDisp + 2', dataSize=4 152 zexti t2, t2, 23 153 wrbase idtr, t2 154 wrlimit idtr, t1 155}; 156 157def macroop LIDT_16_P 158{ 159 .adjust_env oszForPseudoDesc 160 161 rdip t7 162 # Get the limit 163 ld t1, seg, riprel, disp, dataSize=2 164 # Get the base 165 ld t2, seg, riprel, 'adjustedDisp + 2', dataSize=4 166 zexti t2, t2, 23 167 wrbase idtr, t2 168 wrlimit idtr, t1 169}; 170''' 171