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

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75 setNextPC(xc, %(final_val)s);
76 } else {
77 setIWNextPC(xc, %(final_val)s);
78 }
79 } else {
80 xc->%(func)s(this, %(op_idx)s, %(final_val)s);
81 }
82 '''
83
84 #PCState operands need to have a sorting index (the number at the end)
85 #less than all the integer registers which might update the PC. That way
86 #if the flag bits of the pc state are updated and a branch happens through
87 #R15, the updates are layered properly and the R15 update isn't lost.
88 srtNormal = 5
89 srtCpsr = 4
90 srtBase = 3
91 srtPC = 2
92 srtMode = 1
93 srtEPC = 0
94
95 def floatReg(idx):
96 return ('FloatReg', 'sf', idx, 'IsFloating', srtNormal)
97
98 def intReg(idx):
99 return ('IntReg', 'uw', idx, 'IsInteger', srtNormal,
100 maybePCRead, maybePCWrite)
101
102 def intRegNPC(idx):
103 return ('IntReg', 'uw', idx, 'IsInteger', srtNormal)
104
105 def intRegAPC(idx, id = srtNormal):
106 return ('IntReg', 'uw', idx, 'IsInteger', id,
107 maybeAlignedPCRead, maybePCWrite)
108
109 def intRegIWPC(idx):
110 return ('IntReg', 'uw', idx, 'IsInteger', srtNormal,
111 maybePCRead, maybeIWPCWrite)
112
113 def intRegAIWPC(idx):
114 return ('IntReg', 'uw', idx, 'IsInteger', srtNormal,
115 maybePCRead, maybeAIWPCWrite)
116
117 def intRegCC(idx):
118 return ('IntReg', 'uw', idx, None, srtNormal)
119
120 def cntrlReg(idx, id = srtNormal, type = 'uw'):
121 return ('ControlReg', type, idx, (None, None, 'IsControl'), id)
122
123 def cntrlRegNC(idx, id = srtNormal, type = 'uw'):
124 return ('ControlReg', type, idx, None, id)
125
126 def pcStateReg(idx, id):
127 return ('PCState', 'uw', idx, (None, None, 'IsControl'), id)
128}};
129
130def operands {{
131 #Abstracted integer reg operands
132 'Dest': intReg('dest'),
133 'IWDest': intRegIWPC('dest'),
134 'AIWDest': intRegAIWPC('dest'),
135 'Dest2': intReg('dest2'),
136 'Result': intReg('result'),
137 'Base': intRegAPC('base', id = srtBase),
138 'Index': intReg('index'),
139 'Shift': intReg('shift'),
140 'Op1': intReg('op1'),
141 'Op2': intReg('op2'),
142 'Op3': intReg('op3'),
143 'Reg0': intReg('reg0'),
144 'Reg1': intReg('reg1'),
145 'Reg2': intReg('reg2'),
146 'Reg3': intReg('reg3'),
147
148 #Fixed index integer reg operands
149 'SpMode': intRegNPC('intRegInMode((OperatingMode)regMode, INTREG_SP)'),
150 'LR': intRegNPC('INTREG_LR'),
151 'R7': intRegNPC('7'),
152 'R0': intRegNPC('0'),
153 'R1': intRegNPC('0'),
154 'R2': intRegNPC('1'),
155
156 #Pseudo integer condition code registers
157 'CondCodes': intRegCC('INTREG_CONDCODES'),
158 'OptCondCodes': intRegCC(
159 '''(condCode == COND_AL || condCode == COND_UC) ?
160 INTREG_ZERO : INTREG_CONDCODES'''),
161 'FpCondCodes': intRegCC('INTREG_FPCONDCODES'),
162
163 #Abstracted floating point reg operands
164 'FpDest': floatReg('(dest + 0)'),
165 'FpDestP0': floatReg('(dest + 0)'),
166 'FpDestP1': floatReg('(dest + 1)'),
167 'FpDestP2': floatReg('(dest + 2)'),
168 'FpDestP3': floatReg('(dest + 3)'),
169 'FpDestP4': floatReg('(dest + 4)'),
170 'FpDestP5': floatReg('(dest + 5)'),
171 'FpDestP6': floatReg('(dest + 6)'),
172 'FpDestP7': floatReg('(dest + 7)'),
173 'FpDestS0P0': floatReg('(dest + step * 0 + 0)'),
174 'FpDestS0P1': floatReg('(dest + step * 0 + 1)'),
175 'FpDestS1P0': floatReg('(dest + step * 1 + 0)'),
176 'FpDestS1P1': floatReg('(dest + step * 1 + 1)'),
177 'FpDestS2P0': floatReg('(dest + step * 2 + 0)'),
178 'FpDestS2P1': floatReg('(dest + step * 2 + 1)'),
179 'FpDestS3P0': floatReg('(dest + step * 3 + 0)'),
180 'FpDestS3P1': floatReg('(dest + step * 3 + 1)'),
181
182 'FpDest2': floatReg('(dest2 + 0)'),
183 'FpDest2P0': floatReg('(dest2 + 0)'),
184 'FpDest2P1': floatReg('(dest2 + 1)'),
185 'FpDest2P2': floatReg('(dest2 + 2)'),
186 'FpDest2P3': floatReg('(dest2 + 3)'),
187
188 'FpOp1': floatReg('(op1 + 0)'),
189 'FpOp1P0': floatReg('(op1 + 0)'),
190 'FpOp1P1': floatReg('(op1 + 1)'),
191 'FpOp1P2': floatReg('(op1 + 2)'),
192 'FpOp1P3': floatReg('(op1 + 3)'),
193 'FpOp1P4': floatReg('(op1 + 4)'),
194 'FpOp1P5': floatReg('(op1 + 5)'),
195 'FpOp1P6': floatReg('(op1 + 6)'),
196 'FpOp1P7': floatReg('(op1 + 7)'),
197 'FpOp1S0P0': floatReg('(op1 + step * 0 + 0)'),
198 'FpOp1S0P1': floatReg('(op1 + step * 0 + 1)'),
199 'FpOp1S1P0': floatReg('(op1 + step * 1 + 0)'),
200 'FpOp1S1P1': floatReg('(op1 + step * 1 + 1)'),
201 'FpOp1S2P0': floatReg('(op1 + step * 2 + 0)'),
202 'FpOp1S2P1': floatReg('(op1 + step * 2 + 1)'),
203 'FpOp1S3P0': floatReg('(op1 + step * 3 + 0)'),
204 'FpOp1S3P1': floatReg('(op1 + step * 3 + 1)'),
205
206 'FpOp2': floatReg('(op2 + 0)'),
207 'FpOp2P0': floatReg('(op2 + 0)'),
208 'FpOp2P1': floatReg('(op2 + 1)'),
209 'FpOp2P2': floatReg('(op2 + 2)'),
210 'FpOp2P3': floatReg('(op2 + 3)'),
211
212 #Abstracted control reg operands
213 'MiscDest': cntrlReg('dest'),
214 'MiscOp1': cntrlReg('op1'),
215
216 #Fixed index control regs
217 'Cpsr': cntrlReg('MISCREG_CPSR', srtCpsr),
218 'Itstate': cntrlRegNC('MISCREG_ITSTATE', type = 'ub'),
219 'Spsr': cntrlRegNC('MISCREG_SPSR'),
220 'Fpsr': cntrlRegNC('MISCREG_FPSR'),
221 'Fpsid': cntrlRegNC('MISCREG_FPSID'),
222 'Fpscr': cntrlRegNC('MISCREG_FPSCR'),
223 'FpscrQc': cntrlRegNC('MISCREG_FPSCR_QC'),
224 'FpscrExc': cntrlRegNC('MISCREG_FPSCR_EXC'),
225 'Cpacr': cntrlReg('MISCREG_CPACR'),
226 'Fpexc': cntrlRegNC('MISCREG_FPEXC'),
227 'Sctlr': cntrlRegNC('MISCREG_SCTLR'),
228 'SevMailbox': cntrlRegNC('MISCREG_SEV_MAILBOX'),
229
230 #Register fields for microops
231 'Ra' : intReg('ura'),
232 'IWRa' : intRegIWPC('ura'),
233 'Fa' : floatReg('ura'),
234 'Rb' : intReg('urb'),
235 'Rc' : intReg('urc'),
236
237 #Memory Operand
238 'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), srtNormal),
239
240 #PCState fields
241 'PC': pcStateReg('instPC', srtPC),
242 'NPC': pcStateReg('instNPC', srtPC),
243 'pNPC': pcStateReg('instNPC', srtEPC),
244 'IWNPC': pcStateReg('instIWNPC', srtPC),
245 'Thumb': pcStateReg('thumb', srtPC),
246 'NextThumb': pcStateReg('nextThumb', srtMode),
247 'NextJazelle': pcStateReg('nextJazelle', srtMode),
248
249 #Register operands depending on a field in the instruction encoding. These
250 #should be avoided since they may not be portable across different
251 #encodings of the same instruction.
252 'Rd': intReg('RD'),
253 'Rm': intReg('RM'),
254 'Rs': intReg('RS'),
255 'Rn': intReg('RN'),
256 'Rt': intReg('RT')
257}};