subtraction.py revision 10474:799c8ee4ecba 
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
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34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Gabe Black
37
38microcode = '''
39def macroop FSUB1_R
40{
41    subfp st(0), st(0), sti
42};
43
44
45def macroop FSUB1_M
46{
47    ldfp ufp1, seg, sib, disp
48    subfp st(0), st(0), ufp1
49};
50
51def macroop FSUB1_P
52{
53    rdip t7
54    ldfp ufp1, seg, riprel, disp
55    subfp st(0), st(0), ufp1
56};
57
58def macroop FSUB2_R
59{
60    subfp sti, sti, st(0)
61};
62
63def macroop FSUB2_M
64{
65    ldfp ufp1, seg, sib, disp
66    subfp st(0), st(0), ufp1
67};
68
69def macroop FSUB2_P
70{
71    rdip t7
72    ldfp ufp1, seg, riprel, disp
73    subfp st(0), st(0), ufp1
74};
75
76def macroop FSUBP
77{
78    subfp st(1), st(1), st(0), spm=1
79};
80
81def macroop FSUBP_R
82{
83    subfp sti, sti, st(0), spm=1
84};
85
86def macroop FSUBP_M
87{
88    fault "std::make_shared<UnimpInstFault>()"
89};
90
91def macroop FSUBP_P
92{
93   fault "std::make_shared<UnimpInstFault>()"
94};
95
96# FISUB
97# FSUBR
98# FSUBRP
99# FISUBR
100'''
101