mem.isa (7422:feddb9077def) mem.isa (7590:27dbb92bbad5)
1// -*- mode:c++ -*-
2
3// Copyright (c) 2010 ARM Limited
4// All rights reserved
5//
6// The license below extends only to copyright in the software and shall
7// not be construed as granting a license to any other intellectual
8// property including but not limited to intellectual property relating

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33// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37//
38// Authors: Gabe Black
39
40let {{
1// -*- mode:c++ -*-
2
3// Copyright (c) 2010 ARM Limited
4// All rights reserved
5//
6// The license below extends only to copyright in the software and shall
7// not be construed as granting a license to any other intellectual
8// property including but not limited to intellectual property relating

--- 24 unchanged lines hidden (view full) ---

33// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37//
38// Authors: Gabe Black
39
40let {{
41 def loadStoreBaseWork(name, Name, imm, swp, rfe, srs, codeBlobs,
42 memFlags, instFlags, double, strex,
43 base = 'Memory', execTemplateBase = ''):
44 # Make sure flags are in lists (convert to lists if not).
45 memFlags = makeList(memFlags)
46 instFlags = makeList(instFlags)
47
41
48 eaCode = codeBlobs["ea_code"]
42 class LoadStoreInst(object):
43 def __init__(self):
44 self.fullExecTemplate = eval(self.execBase + 'Execute')
45 self.initiateAccTemplate = eval(self.execBase + 'InitiateAcc')
46 self.completeAccTemplate = eval(self.execBase + 'CompleteAcc')
47 self.declareTemplate = eval(self.decConstBase + 'Declare')
48 self.constructTemplate = eval(self.decConstBase + 'Constructor')
49
49
50 # This shouldn't be part of the eaCode, but until the exec templates
51 # are converted over it's the easiest place to put it.
52 eaCode += '\n unsigned memAccessFlags = '
53 eaCode += (string.join(memFlags, '|') + ';')
50 def fillTemplates(self, name, Name, codeBlobs, memFlags, instFlags,
51 base = 'Memory'):
52 # Make sure flags are in lists (convert to lists if not).
53 memFlags = makeList(memFlags)
54 instFlags = makeList(instFlags)
54
55
55 codeBlobs["ea_code"] = eaCode
56 eaCode = codeBlobs["ea_code"]
56
57
57 iop = InstObjParams(name, Name, base, codeBlobs, instFlags)
58 # This shouldn't be part of the eaCode, but until the exec templates
59 # are converted over it's the easiest place to put it.
60 eaCode += '\n unsigned memAccessFlags = '
61 eaCode += (string.join(memFlags, '|') + ';')
58
62
59 fullExecTemplate = eval(execTemplateBase + 'Execute')
60 initiateAccTemplate = eval(execTemplateBase + 'InitiateAcc')
61 completeAccTemplate = eval(execTemplateBase + 'CompleteAcc')
63 codeBlobs["ea_code"] = eaCode
62
64
63 if swp:
64 declareTemplate = SwapDeclare
65 constructTemplate = SwapConstructor
66 elif rfe:
67 declareTemplate = RfeDeclare
68 constructTemplate = RfeConstructor
69 elif srs:
70 declareTemplate = SrsDeclare
71 constructTemplate = SrsConstructor
72 elif imm:
73 if double:
74 declareTemplate = LoadStoreDImmDeclare
75 constructTemplate = LoadStoreDImmConstructor
76 if strex:
77 declareTemplate = StoreExDImmDeclare
78 constructTemplate = StoreExDImmConstructor
79 elif strex:
80 declareTemplate = StoreExImmDeclare
81 constructTemplate = StoreExImmConstructor
82 else:
83 declareTemplate = LoadStoreImmDeclare
84 constructTemplate = LoadStoreImmConstructor
85 else:
86 if double:
87 declareTemplate = LoadStoreDRegDeclare
88 constructTemplate = LoadStoreDRegConstructor
89 else:
90 declareTemplate = LoadStoreRegDeclare
91 constructTemplate = LoadStoreRegConstructor
65 iop = InstObjParams(name, Name, base, codeBlobs, instFlags)
92
66
93 # (header_output, decoder_output, decode_block, exec_output)
94 return (declareTemplate.subst(iop),
95 constructTemplate.subst(iop),
96 fullExecTemplate.subst(iop)
97 + initiateAccTemplate.subst(iop)
98 + completeAccTemplate.subst(iop))
67 # (header_output, decoder_output, decode_block, exec_output)
68 return (self.declareTemplate.subst(iop),
69 self.constructTemplate.subst(iop),
70 self.fullExecTemplate.subst(iop)
71 + self.initiateAccTemplate.subst(iop)
72 + self.completeAccTemplate.subst(iop))
99
100 def pickPredicate(blobs):
101 for val in blobs.values():
102 if re.search('(?<!Opt)CondCodes', val):
103 return condPredicateTest
104 return predicateTest
105
73
74 def pickPredicate(blobs):
75 for val in blobs.values():
76 if re.search('(?<!Opt)CondCodes', val):
77 return condPredicateTest
78 return predicateTest
79
106 def loadStoreBase(name, Name, imm, eaCode, accCode, postAccCode,
107 memFlags, instFlags, double, strex, base = 'Memory',
108 execTemplateBase = ''):
109 codeBlobs = { "ea_code": eaCode,
110 "memacc_code": accCode,
111 "postacc_code": postAccCode }
112 codeBlobs["predicate_test"] = pickPredicate(codeBlobs)
113 return loadStoreBaseWork(name, Name, imm, False, False, False,
114 codeBlobs, memFlags, instFlags, double,
115 strex, base, execTemplateBase)
116
117 def RfeBase(name, Name, eaCode, accCode, memFlags, instFlags):
118 codeBlobs = { "ea_code": eaCode,
119 "memacc_code": accCode }
120 codeBlobs["predicate_test"] = pickPredicate(codeBlobs)
121 return loadStoreBaseWork(name, Name, False, False, True, False,
122 codeBlobs, memFlags, instFlags, False, False,
123 'RfeOp', 'Load')
124
125 def SrsBase(name, Name, eaCode, accCode, memFlags, instFlags):
126 codeBlobs = { "ea_code": eaCode,
127 "memacc_code": accCode,
128 "postacc_code": "" }
129 codeBlobs["predicate_test"] = pickPredicate(codeBlobs)
130 return loadStoreBaseWork(name, Name, False, False, False, True,
131 codeBlobs, memFlags, instFlags, False, False,
132 'SrsOp', 'Store')
133
134 def SwapBase(name, Name, eaCode, preAccCode, postAccCode, memFlags,
135 instFlags):
136 codeBlobs = { "ea_code": eaCode,
137 "preacc_code": preAccCode,
138 "postacc_code": postAccCode }
139 codeBlobs["predicate_test"] = pickPredicate(codeBlobs)
140 return loadStoreBaseWork(name, Name, False, True, False, False,
141 codeBlobs, memFlags, instFlags, False, False,
142 'Swap', 'Swap')
143
144 def memClassName(base, post, add, writeback, \
145 size=4, sign=False, user=False):
146 Name = base
147
80 def memClassName(base, post, add, writeback, \
81 size=4, sign=False, user=False):
82 Name = base
83
148 if post:
149 Name += '_PY'
150 else:
151 Name += '_PN'
84 parts = { "P" : post, "A" : add, "W" : writeback,
85 "S" : sign, "U" : user }
152
86
153 if add:
154 Name += '_AY'
155 else:
156 Name += '_AN'
87 for (letter, val) in parts.items():
88 if val:
89 Name += "_%sY" % letter
90 else:
91 Name += "_%sN" % letter
157
92
158 if writeback:
159 Name += '_WY'
160 else:
161 Name += '_WN'
162
163 Name += ('_SZ%d' % size)
164
93 Name += ('_SZ%d' % size)
94
165 if sign:
166 Name += '_SY'
167 else:
168 Name += '_SN'
169
170 if user:
171 Name += '_UY'
172 else:
173 Name += '_UN'
174
175 return Name
176
177 def buildMemSuffix(sign, size):
178 if size == 4:
179 memSuffix = ''
180 elif size == 2:
181 if sign:
182 memSuffix = '.sh'
183 else:
184 memSuffix = '.uh'
185 elif size == 1:
186 if sign:
187 memSuffix = '.sb'
188 else:
189 memSuffix = '.ub'
190 else:
95 return Name
96
97 def buildMemSuffix(sign, size):
98 if size == 4:
99 memSuffix = ''
100 elif size == 2:
101 if sign:
102 memSuffix = '.sh'
103 else:
104 memSuffix = '.uh'
105 elif size == 1:
106 if sign:
107 memSuffix = '.sb'
108 else:
109 memSuffix = '.ub'
110 else:
191 raise Exception, "Unrecognized size for load %d" % size
111 raise Exception, "Unrecognized size for access %d" % size
192
193 return memSuffix
194
195 def buildMemBase(base, post, writeback):
196 if post and writeback:
197 base = "MemoryPostIndex<%s>" % base
198 elif not post and writeback:
199 base = "MemoryPreIndex<%s>" % base
200 elif not post and not writeback:
201 base = "MemoryOffset<%s>" % base
202 else:
203 raise Exception, "Illegal combination of post and writeback"
204 return base
205}};
206
112
113 return memSuffix
114
115 def buildMemBase(base, post, writeback):
116 if post and writeback:
117 base = "MemoryPostIndex<%s>" % base
118 elif not post and writeback:
119 base = "MemoryPreIndex<%s>" % base
120 elif not post and not writeback:
121 base = "MemoryOffset<%s>" % base
122 else:
123 raise Exception, "Illegal combination of post and writeback"
124 return base
125}};
126