isa_traits.hh (6216:2f4020838149) isa_traits.hh (6329:5d8b91875859)
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * Copyright (c) 2007 MIPS Technologies, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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

138 INTLEVEL_IRQ2 = 22,
139 INTLEVEL_IRQ3 = 23,
140
141 INTLEVEL_SERIAL = 33,
142
143 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX
144 };
145
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * Copyright (c) 2007 MIPS Technologies, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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

138 INTLEVEL_IRQ2 = 22,
139 INTLEVEL_IRQ3 = 23,
140
141 INTLEVEL_SERIAL = 33,
142
143 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX
144 };
145
146
147 // MIPS modes
148 enum mode_type
149 {
150 mode_kernel = 0, // kernel
151 mode_supervisor = 1, // supervisor
152 mode_user = 2, // user mode
153 mode_debug = 3, // debug mode
154 mode_number // number of modes
155 };
156
146 // MIPS modes
147 enum mode_type
148 {
149 mode_kernel = 0, // kernel
150 mode_supervisor = 1, // supervisor
151 mode_user = 2, // user mode
152 mode_debug = 3, // debug mode
153 mode_number // number of modes
154 };
155
157 inline mode_type getOperatingMode(MiscReg Stat)
158 {
159 if((Stat & 0x10000006) != 0 || (Stat & 0x18) ==0)
160 return mode_kernel;
161 else{
162 if((Stat & 0x18) == 0x8)
163 return mode_supervisor;
164 else if((Stat & 0x18) == 0x10)
165 return mode_user;
166 else return mode_number;
167 }
168 }
169
170
171 // return a no-op instruction... used for instruction fetch faults
172 const ExtMachInst NoopMachInst = 0x00000000;
173
156 // return a no-op instruction... used for instruction fetch faults
157 const ExtMachInst NoopMachInst = 0x00000000;
158
174 // Constants Related to the number of registers
175 const int NumIntArchRegs = 32;
176 const int NumIntSpecialRegs = 9;
177 const int NumFloatArchRegs = 32;
178 const int NumFloatSpecialRegs = 5;
179
180 const int MaxShadowRegSets = 16; // Maximum number of shadow register sets
181 const int NumIntRegs = NumIntArchRegs + NumIntSpecialRegs; //HI & LO Regs
182 const int NumFloatRegs = NumFloatArchRegs + NumFloatSpecialRegs;//
183
184 // Static instruction parameters
185 const int MaxInstSrcRegs = 10;
186 const int MaxInstDestRegs = 8;
187
188 // semantically meaningful register indices
189 const int ZeroReg = 0;
190 const int AssemblerReg = 1;
191 const int SyscallSuccessReg = 7;
192 const int FirstArgumentReg = 4;
193 const int ReturnValueReg = 2;
194
195 const int KernelReg0 = 26;
196 const int KernelReg1 = 27;
197 const int GlobalPointerReg = 28;
198 const int StackPointerReg = 29;
199 const int FramePointerReg = 30;
200 const int ReturnAddressReg = 31;
201
202 const int SyscallPseudoReturnReg = 3;
203
204 const int LogVMPageSize = 13; // 8K bytes
205 const int VMPageSize = (1 << LogVMPageSize);
206
207 const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
208
209 const int MachineBytes = 4;
210 const int WordBytes = 4;
211 const int HalfwordBytes = 2;
212 const int ByteBytes = 1;
213
214 const int ANNOTE_NONE = 0;
215 const uint32_t ITOUCH_ANNOTE = 0xffffffff;
159 const int LogVMPageSize = 13; // 8K bytes
160 const int VMPageSize = (1 << LogVMPageSize);
161
162 const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
163
164 const int MachineBytes = 4;
165 const int WordBytes = 4;
166 const int HalfwordBytes = 2;
167 const int ByteBytes = 1;
168
169 const int ANNOTE_NONE = 0;
170 const uint32_t ITOUCH_ANNOTE = 0xffffffff;
216
217 // These help enumerate all the registers for dependence tracking.
218 const int FP_Base_DepTag = NumIntRegs;
219 const int Ctrl_Base_DepTag = FP_Base_DepTag + NumFloatRegs;
220
221 // Enumerate names for 'Control' Registers in the CPU
222 // Reference MIPS32 Arch. for Programmers, Vol. III, Ch.8
223 // (Register Number-Register Select) Summary of Register
224 //------------------------------------------------------
225 // The first set of names classify the CP0 names as Register Banks
226 // for easy indexing when using the 'RD + SEL' index combination
227 // in CP0 instructions.
228 enum MiscRegTags {
229 Index = Ctrl_Base_DepTag + 0, //Bank 0: 0 - 3
230 MVPControl,
231 MVPConf0,
232 MVPConf1,
233
234 CP0_Random = Ctrl_Base_DepTag + 8, //Bank 1: 8 - 15
235 VPEControl,
236 VPEConf0,
237 VPEConf1,
238 YQMask,
239 VPESchedule,
240 VPEScheFBack,
241 VPEOpt,
242
243 EntryLo0 = Ctrl_Base_DepTag + 16, //Bank 2: 16 - 23
244 TCStatus,
245 TCBind,
246 TCRestart,
247 TCHalt,
248 TCContext,
249 TCSchedule,
250 TCScheFBack,
251
252 EntryLo1 = Ctrl_Base_DepTag + 24, // Bank 3: 24
253
254 Context = Ctrl_Base_DepTag + 32, // Bank 4: 32 - 33
255 ContextConfig,
256
257 PageMask = Ctrl_Base_DepTag + 40, //Bank 5: 40 - 41
258 PageGrain = Ctrl_Base_DepTag + 41,
259
260 Wired = Ctrl_Base_DepTag + 48, //Bank 6:48-55
261 SRSConf0,
262 SRSConf1,
263 SRSConf2,
264 SRSConf3,
265 SRSConf4,
266
267 HWRena = Ctrl_Base_DepTag + 56, //Bank 7: 56-63
268
269 BadVAddr = Ctrl_Base_DepTag + 64, //Bank 8: 64-71
270
271 Count = Ctrl_Base_DepTag + 72, //Bank 9: 72-79
272
273 EntryHi = Ctrl_Base_DepTag + 80, //Bank 10: 80-87
274
275 Compare = Ctrl_Base_DepTag + 88, //Bank 11: 88-95
276
277 Status = Ctrl_Base_DepTag + 96, //Bank 12: 96-103
278 IntCtl,
279 SRSCtl,
280 SRSMap,
281
282 Cause = Ctrl_Base_DepTag + 104, //Bank 13: 104-111
283
284 EPC = Ctrl_Base_DepTag + 112, //Bank 14: 112-119
285
286 PRId = Ctrl_Base_DepTag + 120, //Bank 15: 120-127,
287 EBase,
288
289 Config = Ctrl_Base_DepTag + 128, //Bank 16: 128-135
290 Config1,
291 Config2,
292 Config3,
293 Config4,
294 Config5,
295 Config6,
296 Config7,
297
298
299 LLAddr = Ctrl_Base_DepTag + 136, //Bank 17: 136-143
300
301 WatchLo0 = Ctrl_Base_DepTag + 144, //Bank 18: 144-151
302 WatchLo1,
303 WatchLo2,
304 WatchLo3,
305 WatchLo4,
306 WatchLo5,
307 WatchLo6,
308 WatchLo7,
309
310 WatchHi0 = Ctrl_Base_DepTag + 152, //Bank 19: 152-159
311 WatchHi1,
312 WatchHi2,
313 WatchHi3,
314 WatchHi4,
315 WatchHi5,
316 WatchHi6,
317 WatchHi7,
318
319 XCContext64 = Ctrl_Base_DepTag + 160, //Bank 20: 160-167
320
321 //Bank 21: 168-175
322
323 //Bank 22: 176-183
324
325 Debug = Ctrl_Base_DepTag + 184, //Bank 23: 184-191
326 TraceControl1,
327 TraceControl2,
328 UserTraceData,
329 TraceBPC,
330
331 DEPC = Ctrl_Base_DepTag + 192, //Bank 24: 192-199
332
333 PerfCnt0 = Ctrl_Base_DepTag + 200, //Bank 25: 200-207
334 PerfCnt1,
335 PerfCnt2,
336 PerfCnt3,
337 PerfCnt4,
338 PerfCnt5,
339 PerfCnt6,
340 PerfCnt7,
341
342 ErrCtl = Ctrl_Base_DepTag + 208, //Bank 26: 208-215
343
344 CacheErr0 = Ctrl_Base_DepTag + 216, //Bank 27: 216-223
345 CacheErr1,
346 CacheErr2,
347 CacheErr3,
348
349 TagLo0 = Ctrl_Base_DepTag + 224, //Bank 28: 224-231
350 DataLo1,
351 TagLo2,
352 DataLo3,
353 TagLo4,
354 DataLo5,
355 TagLo6,
356 DataLo7,
357
358 TagHi0 = Ctrl_Base_DepTag + 232, //Bank 29: 232-239
359 DataHi1,
360 TagHi2,
361 DataHi3,
362 TagHi4,
363 DataHi5,
364 TagHi6,
365 DataHi7,
366
367
368 ErrorEPC = Ctrl_Base_DepTag + 240, //Bank 30: 240-247
369
370 DESAVE = Ctrl_Base_DepTag + 248, //Bank 31: 248-256
371
372 LLFlag = Ctrl_Base_DepTag + 257,
373
374 NumControlRegs
375 };
376
377 const int TotalDataRegs = NumIntRegs + NumFloatRegs;
378
379 const int NumMiscRegs = NumControlRegs;
380
381 const int TotalNumRegs = NumIntRegs + NumFloatRegs + NumMiscRegs;
382
383
384};
385
386#endif // __ARCH_MIPS_ISA_TRAITS_HH__
171};
172
173#endif // __ARCH_MIPS_ISA_TRAITS_HH__