increment_and_decrement.py revision 7087:fb8d5786ff30 
1# Copyright (c) 2007 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# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Gabe Black
37
38microcode = '''
39def macroop INC_R
40{
41    addi reg, reg, 1, flags=(OF, SF, ZF, AF, PF)
42};
43
44def macroop INC_M
45{
46    ldst t1, seg, sib, disp
47    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
48    st t1, seg, sib, disp
49};
50
51def macroop INC_P
52{
53    rdip t7
54    ldst t1, seg, riprel, disp
55    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
56    st t1, seg, riprel, disp
57};
58
59def macroop INC_LOCKED_M
60{
61    ldstl t1, seg, sib, disp
62    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
63    stul t1, seg, sib, disp
64};
65
66def macroop INC_LOCKED_P
67{
68    rdip t7
69    ldstl t1, seg, riprel, disp
70    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
71    stul t1, seg, riprel, disp
72};
73
74def macroop DEC_R
75{
76    subi reg, reg, 1, flags=(OF, SF, ZF, AF, PF)
77};
78
79def macroop DEC_M
80{
81    ldst t1, seg, sib, disp
82    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
83    st t1, seg, sib, disp
84};
85
86def macroop DEC_P
87{
88    rdip t7
89    ldst t1, seg, riprel, disp
90    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
91    st t1, seg, riprel, disp
92};
93
94def macroop DEC_LOCKED_M
95{
96    ldstl t1, seg, sib, disp
97    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
98    stul t1, seg, sib, disp
99};
100
101def macroop DEC_LOCKED_P
102{
103    rdip t7
104    ldstl t1, seg, riprel, disp
105    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
106    stul t1, seg, riprel, disp
107};
108'''
109