semaphores.py revision 5815:18ed7aa8e8e1
1# Copyright (c) 2007 The Hewlett-Packard Development Company 2# All rights reserved. 3# 4# Redistribution and use of this software in source and binary forms, 5# with or without modification, are permitted provided that the 6# following conditions are met: 7# 8# The software must be used only for Non-Commercial Use which means any 9# use which is NOT directed to receiving any direct monetary 10# compensation for, or commercial advantage from such use. Illustrative 11# examples of non-commercial use are academic research, personal study, 12# teaching, education and corporate research & development. 13# Illustrative examples of commercial use are distributing products for 14# commercial advantage and providing services using the software for 15# commercial advantage. 16# 17# If you wish to use this software or functionality therein that may be 18# covered by patents for commercial use, please contact: 19# Director of Intellectual Property Licensing 20# Office of Strategy and Technology 21# Hewlett-Packard Company 22# 1501 Page Mill Road 23# Palo Alto, California 94304 24# 25# Redistributions of source code must retain the above copyright notice, 26# this list of conditions and the following disclaimer. Redistributions 27# in binary form must reproduce the above copyright notice, this list of 28# conditions and the following disclaimer in the documentation and/or 29# other materials provided with the distribution. Neither the name of 30# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 31# contributors may be used to endorse or promote products derived from 32# this software without specific prior written permission. No right of 33# sublicense is granted herewith. Derivatives of the software and 34# output created using the software may be prepared, but only for 35# Non-Commercial Uses. Derivatives of the software may be shared with 36# others provided: (i) the others agree to abide by the list of 37# conditions herein which includes the Non-Commercial Use restrictions; 38# and (ii) such Derivatives of the software include the above copyright 39# notice to acknowledge the contribution from this software where 40# applicable, this list of conditions and the disclaimer below. 41# 42# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 43# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 44# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 45# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 46# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 47# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 48# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 52# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53# 54# Authors: Gabe Black 55 56microcode = ''' 57def macroop CMPXCHG_R_R { 58 sub t0, rax, reg, flags=(OF, SF, ZF, AF, PF, CF) 59 mov reg, reg, regm, flags=(CZF,) 60 mov rax, rax, reg, flags=(nCZF,) 61}; 62 63def macroop CMPXCHG_M_R { 64 ldst t1, seg, sib, disp 65 sub t0, rax, t1, flags=(OF, SF, ZF, AF, PF, CF) 66 67 mov t1, t1, reg, flags=(CZF,) 68 st t1, seg, sib, disp 69 mov rax, rax, t1, flags=(nCZF,) 70}; 71 72def macroop CMPXCHG_P_R { 73 rdip t7 74 ldst t1, seg, riprel, disp 75 sub t0, rax, t1, flags=(OF, SF, ZF, AF, PF, CF) 76 77 mov t1, t1, reg, flags=(CZF,) 78 st t1, seg, riprel, disp 79 mov rax, rax, t1, flags=(nCZF,) 80}; 81 82def macroop XADD_M_R { 83 ldst t1, seg, sib, disp 84 add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) 85 st t2, seg, sib, disp 86 mov reg, reg, t1 87}; 88 89def macroop XADD_P_R { 90 rdip t7 91 ldst t1, seg, riprel, disp 92 add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) 93 st t2, seg, riprel, disp 94 mov reg, reg, t1 95}; 96 97def macroop XADD_R_R { 98 add t2, regm, reg, flags=(OF,SF,ZF,AF,PF,CF) 99 mov regm, regm, reg 100 mov reg, reg, t2 101}; 102 103''' 104#let {{ 105# class XCHG(Inst): 106# "GenFault ${new UnimpInstFault}" 107#}}; 108