1# Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder.  You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Copyright (c) 2008 The Regents of The University of Michigan
14# All rights reserved.
15#
16# Redistribution and use in source and binary forms, with or without
17# modification, are permitted provided that the following conditions are
18# met: redistributions of source code must retain the above copyright
19# notice, this list of conditions and the following disclaimer;
20# redistributions in binary form must reproduce the above copyright
21# notice, this list of conditions and the following disclaimer in the
22# documentation and/or other materials provided with the distribution;
23# neither the name of the copyright holders nor the names of its
24# contributors may be used to endorse or promote products derived from
25# this software without specific prior written permission.
26#
27# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38#
39# Authors: Gabe Black
40
41microcode = '''
42def macroop RDMSR
43{
44    ld t2, intseg, [8, rcx, t0], "IntAddrPrefixMSR << 3", \
45        dataSize=8, addressSize=8
46    mov rax, rax, t2, dataSize=4
47    srli t2, t2, 32, dataSize=8
48    mov rdx, rdx, t2, dataSize=4
49};
50
51def macroop WRMSR
52{
53    .serialize_after
54    mov t2, t2, rax, dataSize=4
55    slli t3, rdx, 32, dataSize=8
56    or t2, t2, t3, dataSize=8
57    st t2, intseg, [8, rcx, t0], "IntAddrPrefixMSR << 3", \
58        dataSize=8, addressSize=8
59};
60
61def macroop RDTSC
62{
63    .serialize_before
64    rdtsc t1
65    mov rax, rax, t1, dataSize=4
66    srli rdx, t1, 32, dataSize=8
67};
68
69def macroop RDTSCP
70{
71    .serialize_before
72    mfence
73    rdtsc t1
74    mov rax, rax, t1, dataSize=4
75    srli rdx, t1, 32, dataSize=8
76    rdval rcx, "InstRegIndex(MISCREG_TSC_AUX)", dataSize=4
77};
78'''
79