1# Copyright (c) 2007-2008 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 SCAS_M {
58 # Find the constant we need to either add or subtract from rdi
59 ruflag t0, 10
60 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
61 subi t3, t0, dsz, dataSize=asz
62 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
63
64 ld t1, es, [1, t0, rdi]
65 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
66
67 add rdi, rdi, t2, dataSize=asz
68};
69
70#
71# Versions which have the rep prefix. These could benefit from some loop
72# unrolling.
73#
74
75def macroop SCAS_E_M {
76 and t0, rcx, rcx, flags=(EZF,), dataSize=asz
| 1# Copyright (c) 2007-2008 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 SCAS_M {
58 # Find the constant we need to either add or subtract from rdi
59 ruflag t0, 10
60 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
61 subi t3, t0, dsz, dataSize=asz
62 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
63
64 ld t1, es, [1, t0, rdi]
65 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
66
67 add rdi, rdi, t2, dataSize=asz
68};
69
70#
71# Versions which have the rep prefix. These could benefit from some loop
72# unrolling.
73#
74
75def macroop SCAS_E_M {
76 and t0, rcx, rcx, flags=(EZF,), dataSize=asz
|
77 bri t0, label("end"), flags=(CEZF,)
| 77 br label("end"), flags=(CEZF,)
|
78
79 # Find the constant we need to either add or subtract from rdi
80 ruflag t0, 10
81 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
82 subi t3, t0, dsz, dataSize=asz
83 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
84
85topOfLoop:
86 ld t1, es, [1, t0, rdi]
87 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
88
89 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
90 add rdi, rdi, t2, dataSize=asz
| 78
79 # Find the constant we need to either add or subtract from rdi
80 ruflag t0, 10
81 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
82 subi t3, t0, dsz, dataSize=asz
83 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
84
85topOfLoop:
86 ld t1, es, [1, t0, rdi]
87 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
88
89 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
90 add rdi, rdi, t2, dataSize=asz
|
91 bri t0, label("topOfLoop"), flags=(CSTRZnEZF,)
| 91 br label("topOfLoop"), flags=(CSTRZnEZF,)
|
92end:
93 fault "NoFault"
94};
95
96def macroop SCAS_N_M {
97 and t0, rcx, rcx, flags=(EZF,), dataSize=asz
| 92end:
93 fault "NoFault"
94};
95
96def macroop SCAS_N_M {
97 and t0, rcx, rcx, flags=(EZF,), dataSize=asz
|
98 bri t0, label("end"), flags=(CEZF,)
| 98 br label("end"), flags=(CEZF,)
|
99
100 # Find the constant we need to either add or subtract from rdi
101 ruflag t0, 10
102 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
103 subi t3, t0, dsz, dataSize=asz
104 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
105
106topOfLoop:
107 ld t1, es, [1, t0, rdi]
108 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
109
110 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
111 add rdi, rdi, t2, dataSize=asz
| 99
100 # Find the constant we need to either add or subtract from rdi
101 ruflag t0, 10
102 movi t2, t2, dsz, flags=(CEZF,), dataSize=asz
103 subi t3, t0, dsz, dataSize=asz
104 mov t2, t2, t3, flags=(nCEZF,), dataSize=asz
105
106topOfLoop:
107 ld t1, es, [1, t0, rdi]
108 sub t0, t1, rax, flags=(OF, SF, ZF, AF, PF, CF)
109
110 subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
111 add rdi, rdi, t2, dataSize=asz
|
112 bri t0, label("topOfLoop"), flags=(CSTRnZnEZF,)
| 112 br label("topOfLoop"), flags=(CSTRnZnEZF,)
|
113end:
114 fault "NoFault"
115};
116
117'''
| 113end:
114 fault "NoFault"
115};
116
117'''
|