2 * MIPS32 emulation for qemu: main translation routines.
4 * Copyright (c) 2004-2005 Jocelyn Mayer
5 * Copyright (c) 2006 Marius Groeger (FPU operations)
6 * Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 //#define MIPS_DEBUG_DISAS
34 //#define MIPS_DEBUG_SIGN_EXTENSIONS
35 //#define MIPS_SINGLE_STEP
37 #ifdef USE_DIRECT_JUMP
40 #define TBPARAM(x) (long)(x)
44 #define DEF(s, n, copy_size) INDEX_op_ ## s,
50 static uint16_t *gen_opc_ptr;
51 static uint32_t *gen_opparam_ptr;
55 /* MIPS major opcodes */
56 #define MASK_OP_MAJOR(op) (op & (0x3F << 26))
59 /* indirect opcode tables */
60 OPC_SPECIAL = (0x00 << 26),
61 OPC_REGIMM = (0x01 << 26),
62 OPC_CP0 = (0x10 << 26),
63 OPC_CP1 = (0x11 << 26),
64 OPC_CP2 = (0x12 << 26),
65 OPC_CP3 = (0x13 << 26),
66 OPC_SPECIAL2 = (0x1C << 26),
67 OPC_SPECIAL3 = (0x1F << 26),
68 /* arithmetic with immediate */
69 OPC_ADDI = (0x08 << 26),
70 OPC_ADDIU = (0x09 << 26),
71 OPC_SLTI = (0x0A << 26),
72 OPC_SLTIU = (0x0B << 26),
73 OPC_ANDI = (0x0C << 26),
74 OPC_ORI = (0x0D << 26),
75 OPC_XORI = (0x0E << 26),
76 OPC_LUI = (0x0F << 26),
77 OPC_DADDI = (0x18 << 26),
78 OPC_DADDIU = (0x19 << 26),
79 /* Jump and branches */
81 OPC_JAL = (0x03 << 26),
82 OPC_BEQ = (0x04 << 26), /* Unconditional if rs = rt = 0 (B) */
83 OPC_BEQL = (0x14 << 26),
84 OPC_BNE = (0x05 << 26),
85 OPC_BNEL = (0x15 << 26),
86 OPC_BLEZ = (0x06 << 26),
87 OPC_BLEZL = (0x16 << 26),
88 OPC_BGTZ = (0x07 << 26),
89 OPC_BGTZL = (0x17 << 26),
90 OPC_JALX = (0x1D << 26), /* MIPS 16 only */
92 OPC_LDL = (0x1A << 26),
93 OPC_LDR = (0x1B << 26),
94 OPC_LB = (0x20 << 26),
95 OPC_LH = (0x21 << 26),
96 OPC_LWL = (0x22 << 26),
97 OPC_LW = (0x23 << 26),
98 OPC_LBU = (0x24 << 26),
99 OPC_LHU = (0x25 << 26),
100 OPC_LWR = (0x26 << 26),
101 OPC_LWU = (0x27 << 26),
102 OPC_SB = (0x28 << 26),
103 OPC_SH = (0x29 << 26),
104 OPC_SWL = (0x2A << 26),
105 OPC_SW = (0x2B << 26),
106 OPC_SDL = (0x2C << 26),
107 OPC_SDR = (0x2D << 26),
108 OPC_SWR = (0x2E << 26),
109 OPC_LL = (0x30 << 26),
110 OPC_LLD = (0x34 << 26),
111 OPC_LD = (0x37 << 26),
112 OPC_SC = (0x38 << 26),
113 OPC_SCD = (0x3C << 26),
114 OPC_SD = (0x3F << 26),
115 /* Floating point load/store */
116 OPC_LWC1 = (0x31 << 26),
117 OPC_LWC2 = (0x32 << 26),
118 OPC_LDC1 = (0x35 << 26),
119 OPC_LDC2 = (0x36 << 26),
120 OPC_SWC1 = (0x39 << 26),
121 OPC_SWC2 = (0x3A << 26),
122 OPC_SDC1 = (0x3D << 26),
123 OPC_SDC2 = (0x3E << 26),
124 /* MDMX ASE specific */
125 OPC_MDMX = (0x1E << 26),
126 /* Cache and prefetch */
127 OPC_CACHE = (0x2F << 26),
128 OPC_PREF = (0x33 << 26),
129 /* Reserved major opcode */
130 OPC_MAJOR3B_RESERVED = (0x3B << 26),
133 /* MIPS special opcodes */
134 #define MASK_SPECIAL(op) MASK_OP_MAJOR(op) | (op & 0x3F)
138 OPC_SLL = 0x00 | OPC_SPECIAL,
139 /* NOP is SLL r0, r0, 0 */
140 /* SSNOP is SLL r0, r0, 1 */
141 /* EHB is SLL r0, r0, 3 */
142 OPC_SRL = 0x02 | OPC_SPECIAL, /* also ROTR */
143 OPC_SRA = 0x03 | OPC_SPECIAL,
144 OPC_SLLV = 0x04 | OPC_SPECIAL,
145 OPC_SRLV = 0x06 | OPC_SPECIAL,
146 OPC_SRAV = 0x07 | OPC_SPECIAL,
147 OPC_DSLLV = 0x14 | OPC_SPECIAL,
148 OPC_DSRLV = 0x16 | OPC_SPECIAL, /* also DROTRV */
149 OPC_DSRAV = 0x17 | OPC_SPECIAL,
150 OPC_DSLL = 0x38 | OPC_SPECIAL,
151 OPC_DSRL = 0x3A | OPC_SPECIAL, /* also DROTR */
152 OPC_DSRA = 0x3B | OPC_SPECIAL,
153 OPC_DSLL32 = 0x3C | OPC_SPECIAL,
154 OPC_DSRL32 = 0x3E | OPC_SPECIAL, /* also DROTR32 */
155 OPC_DSRA32 = 0x3F | OPC_SPECIAL,
156 /* Multiplication / division */
157 OPC_MULT = 0x18 | OPC_SPECIAL,
158 OPC_MULTU = 0x19 | OPC_SPECIAL,
159 OPC_DIV = 0x1A | OPC_SPECIAL,
160 OPC_DIVU = 0x1B | OPC_SPECIAL,
161 OPC_DMULT = 0x1C | OPC_SPECIAL,
162 OPC_DMULTU = 0x1D | OPC_SPECIAL,
163 OPC_DDIV = 0x1E | OPC_SPECIAL,
164 OPC_DDIVU = 0x1F | OPC_SPECIAL,
165 /* 2 registers arithmetic / logic */
166 OPC_ADD = 0x20 | OPC_SPECIAL,
167 OPC_ADDU = 0x21 | OPC_SPECIAL,
168 OPC_SUB = 0x22 | OPC_SPECIAL,
169 OPC_SUBU = 0x23 | OPC_SPECIAL,
170 OPC_AND = 0x24 | OPC_SPECIAL,
171 OPC_OR = 0x25 | OPC_SPECIAL,
172 OPC_XOR = 0x26 | OPC_SPECIAL,
173 OPC_NOR = 0x27 | OPC_SPECIAL,
174 OPC_SLT = 0x2A | OPC_SPECIAL,
175 OPC_SLTU = 0x2B | OPC_SPECIAL,
176 OPC_DADD = 0x2C | OPC_SPECIAL,
177 OPC_DADDU = 0x2D | OPC_SPECIAL,
178 OPC_DSUB = 0x2E | OPC_SPECIAL,
179 OPC_DSUBU = 0x2F | OPC_SPECIAL,
181 OPC_JR = 0x08 | OPC_SPECIAL, /* Also JR.HB */
182 OPC_JALR = 0x09 | OPC_SPECIAL, /* Also JALR.HB */
184 OPC_TGE = 0x30 | OPC_SPECIAL,
185 OPC_TGEU = 0x31 | OPC_SPECIAL,
186 OPC_TLT = 0x32 | OPC_SPECIAL,
187 OPC_TLTU = 0x33 | OPC_SPECIAL,
188 OPC_TEQ = 0x34 | OPC_SPECIAL,
189 OPC_TNE = 0x36 | OPC_SPECIAL,
190 /* HI / LO registers load & stores */
191 OPC_MFHI = 0x10 | OPC_SPECIAL,
192 OPC_MTHI = 0x11 | OPC_SPECIAL,
193 OPC_MFLO = 0x12 | OPC_SPECIAL,
194 OPC_MTLO = 0x13 | OPC_SPECIAL,
195 /* Conditional moves */
196 OPC_MOVZ = 0x0A | OPC_SPECIAL,
197 OPC_MOVN = 0x0B | OPC_SPECIAL,
199 OPC_MOVCI = 0x01 | OPC_SPECIAL,
202 OPC_PMON = 0x05 | OPC_SPECIAL, /* inofficial */
203 OPC_SYSCALL = 0x0C | OPC_SPECIAL,
204 OPC_BREAK = 0x0D | OPC_SPECIAL,
205 OPC_SPIM = 0x0E | OPC_SPECIAL, /* inofficial */
206 OPC_SYNC = 0x0F | OPC_SPECIAL,
208 OPC_SPECIAL15_RESERVED = 0x15 | OPC_SPECIAL,
209 OPC_SPECIAL28_RESERVED = 0x28 | OPC_SPECIAL,
210 OPC_SPECIAL29_RESERVED = 0x29 | OPC_SPECIAL,
211 OPC_SPECIAL35_RESERVED = 0x35 | OPC_SPECIAL,
212 OPC_SPECIAL37_RESERVED = 0x37 | OPC_SPECIAL,
213 OPC_SPECIAL39_RESERVED = 0x39 | OPC_SPECIAL,
214 OPC_SPECIAL3D_RESERVED = 0x3D | OPC_SPECIAL,
217 /* REGIMM (rt field) opcodes */
218 #define MASK_REGIMM(op) MASK_OP_MAJOR(op) | (op & (0x1F << 16))
221 OPC_BLTZ = (0x00 << 16) | OPC_REGIMM,
222 OPC_BLTZL = (0x02 << 16) | OPC_REGIMM,
223 OPC_BGEZ = (0x01 << 16) | OPC_REGIMM,
224 OPC_BGEZL = (0x03 << 16) | OPC_REGIMM,
225 OPC_BLTZAL = (0x10 << 16) | OPC_REGIMM,
226 OPC_BLTZALL = (0x12 << 16) | OPC_REGIMM,
227 OPC_BGEZAL = (0x11 << 16) | OPC_REGIMM,
228 OPC_BGEZALL = (0x13 << 16) | OPC_REGIMM,
229 OPC_TGEI = (0x08 << 16) | OPC_REGIMM,
230 OPC_TGEIU = (0x09 << 16) | OPC_REGIMM,
231 OPC_TLTI = (0x0A << 16) | OPC_REGIMM,
232 OPC_TLTIU = (0x0B << 16) | OPC_REGIMM,
233 OPC_TEQI = (0x0C << 16) | OPC_REGIMM,
234 OPC_TNEI = (0x0E << 16) | OPC_REGIMM,
235 OPC_SYNCI = (0x1F << 16) | OPC_REGIMM,
238 /* Special2 opcodes */
239 #define MASK_SPECIAL2(op) MASK_OP_MAJOR(op) | (op & 0x3F)
242 /* Multiply & xxx operations */
243 OPC_MADD = 0x00 | OPC_SPECIAL2,
244 OPC_MADDU = 0x01 | OPC_SPECIAL2,
245 OPC_MUL = 0x02 | OPC_SPECIAL2,
246 OPC_MSUB = 0x04 | OPC_SPECIAL2,
247 OPC_MSUBU = 0x05 | OPC_SPECIAL2,
249 OPC_CLZ = 0x20 | OPC_SPECIAL2,
250 OPC_CLO = 0x21 | OPC_SPECIAL2,
251 OPC_DCLZ = 0x24 | OPC_SPECIAL2,
252 OPC_DCLO = 0x25 | OPC_SPECIAL2,
254 OPC_SDBBP = 0x3F | OPC_SPECIAL2,
257 /* Special3 opcodes */
258 #define MASK_SPECIAL3(op) MASK_OP_MAJOR(op) | (op & 0x3F)
261 OPC_EXT = 0x00 | OPC_SPECIAL3,
262 OPC_DEXTM = 0x01 | OPC_SPECIAL3,
263 OPC_DEXTU = 0x02 | OPC_SPECIAL3,
264 OPC_DEXT = 0x03 | OPC_SPECIAL3,
265 OPC_INS = 0x04 | OPC_SPECIAL3,
266 OPC_DINSM = 0x05 | OPC_SPECIAL3,
267 OPC_DINSU = 0x06 | OPC_SPECIAL3,
268 OPC_DINS = 0x07 | OPC_SPECIAL3,
269 OPC_BSHFL = 0x20 | OPC_SPECIAL3,
270 OPC_DBSHFL = 0x24 | OPC_SPECIAL3,
271 OPC_RDHWR = 0x3B | OPC_SPECIAL3,
275 #define MASK_BSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6))
278 OPC_WSBH = (0x02 << 6) | OPC_BSHFL,
279 OPC_SEB = (0x10 << 6) | OPC_BSHFL,
280 OPC_SEH = (0x18 << 6) | OPC_BSHFL,
284 #define MASK_DBSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6))
287 OPC_DSBH = (0x02 << 6) | OPC_DBSHFL,
288 OPC_DSHD = (0x05 << 6) | OPC_DBSHFL,
291 /* Coprocessor 0 (rs field) */
292 #define MASK_CP0(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
295 OPC_MFC0 = (0x00 << 21) | OPC_CP0,
296 OPC_DMFC0 = (0x01 << 21) | OPC_CP0,
297 OPC_MTC0 = (0x04 << 21) | OPC_CP0,
298 OPC_DMTC0 = (0x05 << 21) | OPC_CP0,
299 OPC_RDPGPR = (0x0A << 21) | OPC_CP0,
300 OPC_MFMC0 = (0x0B << 21) | OPC_CP0,
301 OPC_WRPGPR = (0x0E << 21) | OPC_CP0,
302 OPC_C0 = (0x10 << 21) | OPC_CP0,
303 OPC_C0_FIRST = (0x10 << 21) | OPC_CP0,
304 OPC_C0_LAST = (0x1F << 21) | OPC_CP0,
308 #define MASK_MFMC0(op) MASK_CP0(op) | (op & ((0x0C << 11) | (1 << 5)))
311 OPC_DI = (0 << 5) | (0x0C << 11) | OPC_MFMC0,
312 OPC_EI = (1 << 5) | (0x0C << 11) | OPC_MFMC0,
315 /* Coprocessor 0 (with rs == C0) */
316 #define MASK_C0(op) MASK_CP0(op) | (op & 0x3F)
319 OPC_TLBR = 0x01 | OPC_C0,
320 OPC_TLBWI = 0x02 | OPC_C0,
321 OPC_TLBWR = 0x06 | OPC_C0,
322 OPC_TLBP = 0x08 | OPC_C0,
323 OPC_RFE = 0x10 | OPC_C0,
324 OPC_ERET = 0x18 | OPC_C0,
325 OPC_DERET = 0x1F | OPC_C0,
326 OPC_WAIT = 0x20 | OPC_C0,
329 /* Coprocessor 1 (rs field) */
330 #define MASK_CP1(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
333 OPC_MFC1 = (0x00 << 21) | OPC_CP1,
334 OPC_DMFC1 = (0x01 << 21) | OPC_CP1,
335 OPC_CFC1 = (0x02 << 21) | OPC_CP1,
336 OPC_MFHCI = (0x03 << 21) | OPC_CP1,
337 OPC_MTC1 = (0x04 << 21) | OPC_CP1,
338 OPC_DMTC1 = (0x05 << 21) | OPC_CP1,
339 OPC_CTC1 = (0x06 << 21) | OPC_CP1,
340 OPC_MTHCI = (0x07 << 21) | OPC_CP1,
341 OPC_BC1 = (0x08 << 21) | OPC_CP1, /* bc */
342 OPC_S_FMT = (0x10 << 21) | OPC_CP1, /* 16: fmt=single fp */
343 OPC_D_FMT = (0x11 << 21) | OPC_CP1, /* 17: fmt=double fp */
344 OPC_E_FMT = (0x12 << 21) | OPC_CP1, /* 18: fmt=extended fp */
345 OPC_Q_FMT = (0x13 << 21) | OPC_CP1, /* 19: fmt=quad fp */
346 OPC_W_FMT = (0x14 << 21) | OPC_CP1, /* 20: fmt=32bit fixed */
347 OPC_L_FMT = (0x15 << 21) | OPC_CP1, /* 21: fmt=64bit fixed */
351 OPC_BC1F = (0x00 << 16) | OPC_BC1,
352 OPC_BC1T = (0x01 << 16) | OPC_BC1,
353 OPC_BC1FL = (0x02 << 16) | OPC_BC1,
354 OPC_BC1TL = (0x03 << 16) | OPC_BC1,
357 #define MASK_CP1_BCOND(op) MASK_CP1(op) | (op & (0x3 << 16))
358 #define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F)
360 #define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
361 #define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21))
363 const unsigned char *regnames[] =
364 { "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
365 "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
366 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
367 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", };
369 /* Warning: no function for r0 register (hard wired to zero) */
370 #define GEN32(func, NAME) \
371 static GenOpFunc *NAME ## _table [32] = { \
372 NULL, NAME ## 1, NAME ## 2, NAME ## 3, \
373 NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \
374 NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \
375 NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \
376 NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \
377 NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \
378 NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \
379 NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \
381 static inline void func(int n) \
383 NAME ## _table[n](); \
386 /* General purpose registers moves */
387 GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr);
388 GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr);
389 GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr);
391 GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr);
392 GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr);
394 static const char *fregnames[] =
395 { "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
396 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
397 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
398 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", };
400 # define SFGEN32(func, NAME) \
401 static GenOpFunc *NAME ## _table [32] = { \
402 NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \
403 NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \
404 NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \
405 NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \
406 NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \
407 NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \
408 NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \
409 NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \
411 static inline void func(int n) \
413 NAME ## _table[n](); \
416 # define DFGEN32(func, NAME) \
417 static GenOpFunc *NAME ## _table [32] = { \
418 NAME ## 0, 0, NAME ## 2, 0, \
419 NAME ## 4, 0, NAME ## 6, 0, \
420 NAME ## 8, 0, NAME ## 10, 0, \
421 NAME ## 12, 0, NAME ## 14, 0, \
422 NAME ## 16, 0, NAME ## 18, 0, \
423 NAME ## 20, 0, NAME ## 22, 0, \
424 NAME ## 24, 0, NAME ## 26, 0, \
425 NAME ## 28, 0, NAME ## 30, 0, \
427 static inline void func(int n) \
429 NAME ## _table[n](); \
432 SFGEN32(gen_op_load_fpr_WT0, gen_op_load_fpr_WT0_fpr);
433 SFGEN32(gen_op_store_fpr_WT0, gen_op_store_fpr_WT0_fpr);
435 SFGEN32(gen_op_load_fpr_WT1, gen_op_load_fpr_WT1_fpr);
436 SFGEN32(gen_op_store_fpr_WT1, gen_op_store_fpr_WT1_fpr);
438 SFGEN32(gen_op_load_fpr_WT2, gen_op_load_fpr_WT2_fpr);
439 SFGEN32(gen_op_store_fpr_WT2, gen_op_store_fpr_WT2_fpr);
441 DFGEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fpr);
442 DFGEN32(gen_op_store_fpr_DT0, gen_op_store_fpr_DT0_fpr);
444 DFGEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fpr);
445 DFGEN32(gen_op_store_fpr_DT1, gen_op_store_fpr_DT1_fpr);
447 DFGEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fpr);
448 DFGEN32(gen_op_store_fpr_DT2, gen_op_store_fpr_DT2_fpr);
450 #define FOP_CONDS(fmt) \
451 static GenOpFunc * cond_ ## fmt ## _table[16] = { \
452 gen_op_cmp_ ## fmt ## _f, \
453 gen_op_cmp_ ## fmt ## _un, \
454 gen_op_cmp_ ## fmt ## _eq, \
455 gen_op_cmp_ ## fmt ## _ueq, \
456 gen_op_cmp_ ## fmt ## _olt, \
457 gen_op_cmp_ ## fmt ## _ult, \
458 gen_op_cmp_ ## fmt ## _ole, \
459 gen_op_cmp_ ## fmt ## _ule, \
460 gen_op_cmp_ ## fmt ## _sf, \
461 gen_op_cmp_ ## fmt ## _ngle, \
462 gen_op_cmp_ ## fmt ## _seq, \
463 gen_op_cmp_ ## fmt ## _ngl, \
464 gen_op_cmp_ ## fmt ## _lt, \
465 gen_op_cmp_ ## fmt ## _nge, \
466 gen_op_cmp_ ## fmt ## _le, \
467 gen_op_cmp_ ## fmt ## _ngt, \
469 static inline void gen_cmp_ ## fmt(int n) \
471 cond_ ## fmt ## _table[n](); \
477 typedef struct DisasContext {
478 struct TranslationBlock *tb;
479 target_ulong pc, saved_pc;
481 /* Routine used to access memory */
483 uint32_t hflags, saved_hflags;
486 target_ulong btarget;
490 BS_NONE = 0, /* We go out of the TB without reaching a branch or an
491 * exception condition
493 BS_STOP = 1, /* We want to stop translation for any reason */
494 BS_BRANCH = 2, /* We reached a branch condition */
495 BS_EXCP = 3, /* We reached an exception condition */
498 #if defined MIPS_DEBUG_DISAS
499 #define MIPS_DEBUG(fmt, args...) \
501 if (loglevel & CPU_LOG_TB_IN_ASM) { \
502 fprintf(logfile, TARGET_FMT_lx ": %08x " fmt "\n", \
503 ctx->pc, ctx->opcode , ##args); \
507 #define MIPS_DEBUG(fmt, args...) do { } while(0)
510 #define MIPS_INVAL(op) \
512 MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \
513 ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \
516 #define GEN_LOAD_REG_TN(Tn, Rn) \
519 glue(gen_op_reset_, Tn)(); \
521 glue(gen_op_load_gpr_, Tn)(Rn); \
525 #define GEN_LOAD_IMM_TN(Tn, Imm) \
528 glue(gen_op_reset_, Tn)(); \
530 glue(gen_op_set_, Tn)(Imm); \
534 #define GEN_STORE_TN_REG(Rn, Tn) \
537 glue(glue(gen_op_store_, Tn),_gpr)(Rn); \
541 #define GEN_LOAD_FREG_FTN(FTn, Fn) \
543 glue(gen_op_load_fpr_, FTn)(Fn); \
546 #define GEN_STORE_FTN_FREG(Fn, FTn) \
548 glue(gen_op_store_fpr_, FTn)(Fn); \
551 static inline void save_cpu_state (DisasContext *ctx, int do_save_pc)
553 #if defined MIPS_DEBUG_DISAS
554 if (loglevel & CPU_LOG_TB_IN_ASM) {
555 fprintf(logfile, "hflags %08x saved %08x\n",
556 ctx->hflags, ctx->saved_hflags);
559 if (do_save_pc && ctx->pc != ctx->saved_pc) {
560 gen_op_save_pc(ctx->pc);
561 ctx->saved_pc = ctx->pc;
563 if (ctx->hflags != ctx->saved_hflags) {
564 gen_op_save_state(ctx->hflags);
565 ctx->saved_hflags = ctx->hflags;
566 if (ctx->hflags & MIPS_HFLAG_BR) {
567 gen_op_save_breg_target();
568 } else if (ctx->hflags & MIPS_HFLAG_B) {
569 gen_op_save_btarget(ctx->btarget);
570 } else if (ctx->hflags & MIPS_HFLAG_BMASK) {
572 gen_op_save_btarget(ctx->btarget);
577 static inline void generate_exception_err (DisasContext *ctx, int excp, int err)
579 #if defined MIPS_DEBUG_DISAS
580 if (loglevel & CPU_LOG_TB_IN_ASM)
581 fprintf(logfile, "%s: raise exception %d\n", __func__, excp);
583 save_cpu_state(ctx, 1);
585 gen_op_raise_exception(excp);
587 gen_op_raise_exception_err(excp, err);
588 ctx->bstate = BS_EXCP;
591 static inline void generate_exception (DisasContext *ctx, int excp)
593 generate_exception_err (ctx, excp, 0);
596 #if defined(CONFIG_USER_ONLY)
597 #define op_ldst(name) gen_op_##name##_raw()
598 #define OP_LD_TABLE(width)
599 #define OP_ST_TABLE(width)
601 #define op_ldst(name) (*gen_op_##name[ctx->mem_idx])()
602 #define OP_LD_TABLE(width) \
603 static GenOpFunc *gen_op_l##width[] = { \
604 &gen_op_l##width##_user, \
605 &gen_op_l##width##_kernel, \
607 #define OP_ST_TABLE(width) \
608 static GenOpFunc *gen_op_s##width[] = { \
609 &gen_op_s##width##_user, \
610 &gen_op_s##width##_kernel, \
614 #ifdef MIPS_HAS_MIPS64
645 static void gen_ldst (DisasContext *ctx, uint32_t opc, int rt,
646 int base, int16_t offset)
648 const char *opn = "unk";
651 GEN_LOAD_IMM_TN(T0, offset);
652 } else if (offset == 0) {
653 gen_op_load_gpr_T0(base);
655 gen_op_load_gpr_T0(base);
656 gen_op_set_T1(offset);
659 /* Don't do NOP if destination is zero: we must perform the actual
663 #ifdef MIPS_HAS_MIPS64
666 GEN_STORE_TN_REG(rt, T0);
671 GEN_STORE_TN_REG(rt, T0);
675 GEN_LOAD_REG_TN(T1, rt);
680 GEN_LOAD_REG_TN(T1, rt);
686 GEN_STORE_TN_REG(rt, T0);
690 GEN_LOAD_REG_TN(T1, rt);
696 GEN_STORE_TN_REG(rt, T0);
700 GEN_LOAD_REG_TN(T1, rt);
707 GEN_STORE_TN_REG(rt, T0);
712 GEN_STORE_TN_REG(rt, T0);
716 GEN_LOAD_REG_TN(T1, rt);
722 GEN_STORE_TN_REG(rt, T0);
726 GEN_LOAD_REG_TN(T1, rt);
732 GEN_STORE_TN_REG(rt, T0);
737 GEN_STORE_TN_REG(rt, T0);
741 GEN_LOAD_REG_TN(T1, rt);
747 GEN_STORE_TN_REG(rt, T0);
751 GEN_LOAD_REG_TN(T1, rt);
753 GEN_STORE_TN_REG(rt, T0);
757 GEN_LOAD_REG_TN(T1, rt);
762 GEN_LOAD_REG_TN(T1, rt);
764 GEN_STORE_TN_REG(rt, T0);
768 GEN_LOAD_REG_TN(T1, rt);
774 GEN_STORE_TN_REG(rt, T0);
778 GEN_LOAD_REG_TN(T1, rt);
780 GEN_STORE_TN_REG(rt, T0);
784 MIPS_INVAL("load/store");
785 generate_exception(ctx, EXCP_RI);
788 MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
792 static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
793 int base, int16_t offset)
795 const char *opn = "unk";
798 GEN_LOAD_IMM_TN(T0, offset);
799 } else if (offset == 0) {
800 gen_op_load_gpr_T0(base);
802 gen_op_load_gpr_T0(base);
803 gen_op_set_T1(offset);
806 /* Don't do NOP if destination is zero: we must perform the actual
812 GEN_STORE_FTN_FREG(ft, WT0);
816 GEN_LOAD_FREG_FTN(WT0, ft);
822 GEN_STORE_FTN_FREG(ft, DT0);
826 GEN_LOAD_FREG_FTN(DT0, ft);
831 MIPS_INVAL("float load/store");
832 generate_exception_err(ctx, EXCP_CpU, 1);
835 MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
838 /* Arithmetic with immediate operand */
839 static void gen_arith_imm (DisasContext *ctx, uint32_t opc, int rt,
843 const char *opn = "unk";
845 if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) {
846 /* if no destination, treat it as a NOP
847 * For addi, we must generate the overflow exception when needed.
852 if (opc == OPC_ADDI || opc == OPC_ADDIU ||
853 opc == OPC_DADDI || opc == OPC_DADDIU ||
854 opc == OPC_SLTI || opc == OPC_SLTIU)
855 uimm = (int32_t)imm; /* Sign extend to 32 bits */
857 uimm = (uint16_t)imm;
858 if (opc != OPC_LUI) {
859 GEN_LOAD_REG_TN(T0, rs);
860 GEN_LOAD_IMM_TN(T1, uimm);
863 GEN_LOAD_IMM_TN(T0, uimm);
867 save_cpu_state(ctx, 1);
875 #ifdef MIPS_HAS_MIPS64
877 save_cpu_state(ctx, 1);
918 if ((ctx->opcode >> 21) & 1) {
926 #ifdef MIPS_HAS_MIPS64
936 if ((ctx->opcode >> 21) & 1) {
953 if ((ctx->opcode >> 21) & 1) {
963 MIPS_INVAL("imm arith");
964 generate_exception(ctx, EXCP_RI);
967 GEN_STORE_TN_REG(rt, T0);
968 MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm);
972 static void gen_arith (DisasContext *ctx, uint32_t opc,
973 int rd, int rs, int rt)
975 const char *opn = "unk";
977 if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB
978 && opc != OPC_DADD && opc != OPC_DSUB) {
979 /* if no destination, treat it as a NOP
980 * For add & sub, we must generate the overflow exception when needed.
985 GEN_LOAD_REG_TN(T0, rs);
986 GEN_LOAD_REG_TN(T1, rt);
989 save_cpu_state(ctx, 1);
998 save_cpu_state(ctx, 1);
1006 #ifdef MIPS_HAS_MIPS64
1008 save_cpu_state(ctx, 1);
1017 save_cpu_state(ctx, 1);
1071 if ((ctx->opcode >> 6) & 1) {
1079 #ifdef MIPS_HAS_MIPS64
1089 if ((ctx->opcode >> 6) & 1) {
1099 MIPS_INVAL("arith");
1100 generate_exception(ctx, EXCP_RI);
1103 GEN_STORE_TN_REG(rd, T0);
1105 MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
1108 /* Arithmetic on HI/LO registers */
1109 static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg)
1111 const char *opn = "unk";
1113 if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) {
1114 /* Treat as a NOP */
1121 GEN_STORE_TN_REG(reg, T0);
1126 GEN_STORE_TN_REG(reg, T0);
1130 GEN_LOAD_REG_TN(T0, reg);
1135 GEN_LOAD_REG_TN(T0, reg);
1141 generate_exception(ctx, EXCP_RI);
1144 MIPS_DEBUG("%s %s", opn, regnames[reg]);
1147 static void gen_muldiv (DisasContext *ctx, uint32_t opc,
1150 const char *opn = "unk";
1152 GEN_LOAD_REG_TN(T0, rs);
1153 GEN_LOAD_REG_TN(T1, rt);
1171 #ifdef MIPS_HAS_MIPS64
1206 MIPS_INVAL("mul/div");
1207 generate_exception(ctx, EXCP_RI);
1210 MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
1213 static void gen_cl (DisasContext *ctx, uint32_t opc,
1216 const char *opn = "unk";
1218 /* Treat as a NOP */
1222 GEN_LOAD_REG_TN(T0, rs);
1232 #ifdef MIPS_HAS_MIPS64
1244 generate_exception(ctx, EXCP_RI);
1247 gen_op_store_T0_gpr(rd);
1248 MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
1252 static void gen_trap (DisasContext *ctx, uint32_t opc,
1253 int rs, int rt, int16_t imm)
1258 /* Load needed operands */
1266 /* Compare two registers */
1268 GEN_LOAD_REG_TN(T0, rs);
1269 GEN_LOAD_REG_TN(T1, rt);
1279 /* Compare register to immediate */
1280 if (rs != 0 || imm != 0) {
1281 GEN_LOAD_REG_TN(T0, rs);
1282 GEN_LOAD_IMM_TN(T1, (int32_t)imm);
1289 case OPC_TEQ: /* rs == rs */
1290 case OPC_TEQI: /* r0 == 0 */
1291 case OPC_TGE: /* rs >= rs */
1292 case OPC_TGEI: /* r0 >= 0 */
1293 case OPC_TGEU: /* rs >= rs unsigned */
1294 case OPC_TGEIU: /* r0 >= 0 unsigned */
1298 case OPC_TLT: /* rs < rs */
1299 case OPC_TLTI: /* r0 < 0 */
1300 case OPC_TLTU: /* rs < rs unsigned */
1301 case OPC_TLTIU: /* r0 < 0 unsigned */
1302 case OPC_TNE: /* rs != rs */
1303 case OPC_TNEI: /* r0 != 0 */
1304 /* Never trap: treat as NOP */
1308 generate_exception(ctx, EXCP_RI);
1339 generate_exception(ctx, EXCP_RI);
1343 save_cpu_state(ctx, 1);
1345 ctx->bstate = BS_STOP;
1348 static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
1350 TranslationBlock *tb;
1352 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
1354 gen_op_goto_tb0(TBPARAM(tb));
1356 gen_op_goto_tb1(TBPARAM(tb));
1357 gen_op_save_pc(dest);
1358 gen_op_set_T0((long)tb + n);
1361 gen_op_save_pc(dest);
1367 /* Branches (before delay slot) */
1368 static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
1369 int rs, int rt, int32_t offset)
1371 target_ulong btarget;
1377 /* Load needed operands */
1383 /* Compare two registers */
1385 GEN_LOAD_REG_TN(T0, rs);
1386 GEN_LOAD_REG_TN(T1, rt);
1389 btarget = ctx->pc + 4 + offset;
1403 /* Compare to zero */
1405 gen_op_load_gpr_T0(rs);
1408 btarget = ctx->pc + 4 + offset;
1412 /* Jump to immediate */
1413 btarget = ((ctx->pc + 4) & (int32_t)0xF0000000) | offset;
1417 /* Jump to register */
1418 if (offset != 0 && offset != 16) {
1419 /* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
1420 others are reserved. */
1421 generate_exception(ctx, EXCP_RI);
1424 GEN_LOAD_REG_TN(T2, rs);
1427 MIPS_INVAL("branch/jump");
1428 generate_exception(ctx, EXCP_RI);
1432 /* No condition to be computed */
1434 case OPC_BEQ: /* rx == rx */
1435 case OPC_BEQL: /* rx == rx likely */
1436 case OPC_BGEZ: /* 0 >= 0 */
1437 case OPC_BGEZL: /* 0 >= 0 likely */
1438 case OPC_BLEZ: /* 0 <= 0 */
1439 case OPC_BLEZL: /* 0 <= 0 likely */
1441 ctx->hflags |= MIPS_HFLAG_B;
1442 MIPS_DEBUG("balways");
1444 case OPC_BGEZAL: /* 0 >= 0 */
1445 case OPC_BGEZALL: /* 0 >= 0 likely */
1446 /* Always take and link */
1448 ctx->hflags |= MIPS_HFLAG_B;
1449 MIPS_DEBUG("balways and link");
1451 case OPC_BNE: /* rx != rx */
1452 case OPC_BGTZ: /* 0 > 0 */
1453 case OPC_BLTZ: /* 0 < 0 */
1454 /* Treated as NOP */
1455 MIPS_DEBUG("bnever (NOP)");
1457 case OPC_BLTZAL: /* 0 < 0 */
1458 gen_op_set_T0(ctx->pc + 8);
1459 gen_op_store_T0_gpr(31);
1461 case OPC_BLTZALL: /* 0 < 0 likely */
1462 gen_op_set_T0(ctx->pc + 8);
1463 gen_op_store_T0_gpr(31);
1464 gen_goto_tb(ctx, 0, ctx->pc + 4);
1466 case OPC_BNEL: /* rx != rx likely */
1467 case OPC_BGTZL: /* 0 > 0 likely */
1468 case OPC_BLTZL: /* 0 < 0 likely */
1469 /* Skip the instruction in the delay slot */
1470 MIPS_DEBUG("bnever and skip");
1471 gen_goto_tb(ctx, 0, ctx->pc + 4);
1474 ctx->hflags |= MIPS_HFLAG_B;
1475 MIPS_DEBUG("j %08x", btarget);
1479 ctx->hflags |= MIPS_HFLAG_B;
1480 MIPS_DEBUG("jal %08x", btarget);
1483 ctx->hflags |= MIPS_HFLAG_BR;
1484 MIPS_DEBUG("jr %s", regnames[rs]);
1488 ctx->hflags |= MIPS_HFLAG_BR;
1489 MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
1492 MIPS_INVAL("branch/jump");
1493 generate_exception(ctx, EXCP_RI);
1500 MIPS_DEBUG("beq %s, %s, %08x",
1501 regnames[rs], regnames[rt], btarget);
1505 MIPS_DEBUG("beql %s, %s, %08x",
1506 regnames[rs], regnames[rt], btarget);
1510 MIPS_DEBUG("bne %s, %s, %08x",
1511 regnames[rs], regnames[rt], btarget);
1515 MIPS_DEBUG("bnel %s, %s, %08x",
1516 regnames[rs], regnames[rt], btarget);
1520 MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget);
1524 MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget);
1528 MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget);
1534 MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget);
1538 MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget);
1542 MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget);
1546 MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget);
1550 MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget);
1554 MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget);
1558 MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget);
1563 MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget);
1565 ctx->hflags |= MIPS_HFLAG_BC;
1570 MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget);
1572 ctx->hflags |= MIPS_HFLAG_BL;
1577 MIPS_DEBUG("enter ds: link %d cond %02x target %08x",
1578 blink, ctx->hflags, btarget);
1579 ctx->btarget = btarget;
1581 gen_op_set_T0(ctx->pc + 8);
1582 gen_op_store_T0_gpr(blink);
1587 /* special3 bitfield operations */
1588 static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt,
1589 int rs, int lsb, int msb)
1591 GEN_LOAD_REG_TN(T1, rs);
1596 gen_op_ext(lsb, msb + 1);
1601 gen_op_ext(lsb, msb + 1 + 32);
1606 gen_op_ext(lsb + 32, msb + 1);
1609 gen_op_ext(lsb, msb + 1);
1614 GEN_LOAD_REG_TN(T2, rt);
1615 gen_op_ins(lsb, msb - lsb + 1);
1620 GEN_LOAD_REG_TN(T2, rt);
1621 gen_op_ins(lsb, msb - lsb + 1 + 32);
1626 GEN_LOAD_REG_TN(T2, rt);
1627 gen_op_ins(lsb + 32, msb - lsb + 1);
1632 GEN_LOAD_REG_TN(T2, rt);
1633 gen_op_ins(lsb, msb - lsb + 1);
1637 MIPS_INVAL("bitops");
1638 generate_exception(ctx, EXCP_RI);
1641 GEN_STORE_TN_REG(rt, T0);
1644 /* CP0 (MMU and control) */
1645 static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
1647 const char *rn = "invalid";
1653 gen_op_mfc0_index();
1657 // gen_op_mfc0_mvpcontrol(); /* MT ASE */
1661 // gen_op_mfc0_mvpconf0(); /* MT ASE */
1665 // gen_op_mfc0_mvpconf1(); /* MT ASE */
1675 gen_op_mfc0_random();
1679 // gen_op_mfc0_vpecontrol(); /* MT ASE */
1683 // gen_op_mfc0_vpeconf0(); /* MT ASE */
1687 // gen_op_mfc0_vpeconf1(); /* MT ASE */
1691 // gen_op_mfc0_YQMask(); /* MT ASE */
1695 // gen_op_mfc0_vpeschedule(); /* MT ASE */
1699 // gen_op_mfc0_vpeschefback(); /* MT ASE */
1700 rn = "VPEScheFBack";
1703 // gen_op_mfc0_vpeopt(); /* MT ASE */
1713 gen_op_mfc0_entrylo0();
1717 // gen_op_mfc0_tcstatus(); /* MT ASE */
1721 // gen_op_mfc0_tcbind(); /* MT ASE */
1725 // gen_op_mfc0_tcrestart(); /* MT ASE */
1729 // gen_op_mfc0_tchalt(); /* MT ASE */
1733 // gen_op_mfc0_tccontext(); /* MT ASE */
1737 // gen_op_mfc0_tcschedule(); /* MT ASE */
1741 // gen_op_mfc0_tcschefback(); /* MT ASE */
1751 gen_op_mfc0_entrylo1();
1761 gen_op_mfc0_context();
1765 // gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */
1766 rn = "ContextConfig";
1775 gen_op_mfc0_pagemask();
1779 gen_op_mfc0_pagegrain();
1789 gen_op_mfc0_wired();
1793 // gen_op_mfc0_srsconf0(); /* shadow registers */
1797 // gen_op_mfc0_srsconf1(); /* shadow registers */
1801 // gen_op_mfc0_srsconf2(); /* shadow registers */
1805 // gen_op_mfc0_srsconf3(); /* shadow registers */
1809 // gen_op_mfc0_srsconf4(); /* shadow registers */
1819 gen_op_mfc0_hwrena();
1829 gen_op_mfc0_badvaddr();
1839 gen_op_mfc0_count();
1842 /* 6,7 are implementation dependent */
1850 gen_op_mfc0_entryhi();
1860 gen_op_mfc0_compare();
1863 /* 6,7 are implementation dependent */
1871 gen_op_mfc0_status();
1875 gen_op_mfc0_intctl();
1879 gen_op_mfc0_srsctl();
1883 // gen_op_mfc0_srsmap(); /* shadow registers */
1893 gen_op_mfc0_cause();
1917 gen_op_mfc0_ebase();
1927 gen_op_mfc0_config0();
1931 gen_op_mfc0_config1();
1935 gen_op_mfc0_config2();
1939 gen_op_mfc0_config3();
1942 /* 6,7 are implementation dependent */
1950 gen_op_mfc0_lladdr();
1960 gen_op_mfc0_watchlo0();
1964 // gen_op_mfc0_watchlo1();
1968 // gen_op_mfc0_watchlo2();
1972 // gen_op_mfc0_watchlo3();
1976 // gen_op_mfc0_watchlo4();
1980 // gen_op_mfc0_watchlo5();
1984 // gen_op_mfc0_watchlo6();
1988 // gen_op_mfc0_watchlo7();
1998 gen_op_mfc0_watchhi0();
2002 // gen_op_mfc0_watchhi1();
2006 // gen_op_mfc0_watchhi2();
2010 // gen_op_mfc0_watchhi3();
2014 // gen_op_mfc0_watchhi4();
2018 // gen_op_mfc0_watchhi5();
2022 // gen_op_mfc0_watchhi6();
2026 // gen_op_mfc0_watchhi7();
2036 /* 64 bit MMU only */
2037 gen_op_mfc0_xcontext();
2045 /* Officially reserved, but sel 0 is used for R1x000 framemask */
2048 gen_op_mfc0_framemask();
2057 rn = "'Diagnostic"; /* implementation dependent */
2062 gen_op_mfc0_debug(); /* EJTAG support */
2066 // gen_op_mfc0_tracecontrol(); /* PDtrace support */
2067 rn = "TraceControl";
2070 // gen_op_mfc0_tracecontrol2(); /* PDtrace support */
2071 rn = "TraceControl2";
2074 // gen_op_mfc0_usertracedata(); /* PDtrace support */
2075 rn = "UserTraceData";
2078 // gen_op_mfc0_debug(); /* PDtrace support */
2088 gen_op_mfc0_depc(); /* EJTAG support */
2098 gen_op_mfc0_performance0();
2099 rn = "Performance0";
2102 // gen_op_mfc0_performance1();
2103 rn = "Performance1";
2106 // gen_op_mfc0_performance2();
2107 rn = "Performance2";
2110 // gen_op_mfc0_performance3();
2111 rn = "Performance3";
2114 // gen_op_mfc0_performance4();
2115 rn = "Performance4";
2118 // gen_op_mfc0_performance5();
2119 rn = "Performance5";
2122 // gen_op_mfc0_performance6();
2123 rn = "Performance6";
2126 // gen_op_mfc0_performance7();
2127 rn = "Performance7";
2152 gen_op_mfc0_taglo();
2159 gen_op_mfc0_datalo();
2172 gen_op_mfc0_taghi();
2179 gen_op_mfc0_datahi();
2189 gen_op_mfc0_errorepc();
2199 gen_op_mfc0_desave(); /* EJTAG support */
2209 #if defined MIPS_DEBUG_DISAS
2210 if (loglevel & CPU_LOG_TB_IN_ASM) {
2211 fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
2218 #if defined MIPS_DEBUG_DISAS
2219 if (loglevel & CPU_LOG_TB_IN_ASM) {
2220 fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
2224 generate_exception(ctx, EXCP_RI);
2227 static void gen_mtc0 (DisasContext *ctx, int reg, int sel)
2229 const char *rn = "invalid";
2235 gen_op_mtc0_index();
2239 // gen_op_mtc0_mvpcontrol(); /* MT ASE */
2243 // gen_op_mtc0_mvpconf0(); /* MT ASE */
2247 // gen_op_mtc0_mvpconf1(); /* MT ASE */
2261 // gen_op_mtc0_vpecontrol(); /* MT ASE */
2265 // gen_op_mtc0_vpeconf0(); /* MT ASE */
2269 // gen_op_mtc0_vpeconf1(); /* MT ASE */
2273 // gen_op_mtc0_YQMask(); /* MT ASE */
2277 // gen_op_mtc0_vpeschedule(); /* MT ASE */
2281 // gen_op_mtc0_vpeschefback(); /* MT ASE */
2282 rn = "VPEScheFBack";
2285 // gen_op_mtc0_vpeopt(); /* MT ASE */
2295 gen_op_mtc0_entrylo0();
2299 // gen_op_mtc0_tcstatus(); /* MT ASE */
2303 // gen_op_mtc0_tcbind(); /* MT ASE */
2307 // gen_op_mtc0_tcrestart(); /* MT ASE */
2311 // gen_op_mtc0_tchalt(); /* MT ASE */
2315 // gen_op_mtc0_tccontext(); /* MT ASE */
2319 // gen_op_mtc0_tcschedule(); /* MT ASE */
2323 // gen_op_mtc0_tcschefback(); /* MT ASE */
2333 gen_op_mtc0_entrylo1();
2343 gen_op_mtc0_context();
2347 // gen_op_mtc0_contextconfig(); /* SmartMIPS ASE */
2348 rn = "ContextConfig";
2357 gen_op_mtc0_pagemask();
2361 gen_op_mtc0_pagegrain();
2371 gen_op_mtc0_wired();
2375 // gen_op_mtc0_srsconf0(); /* shadow registers */
2379 // gen_op_mtc0_srsconf1(); /* shadow registers */
2383 // gen_op_mtc0_srsconf2(); /* shadow registers */
2387 // gen_op_mtc0_srsconf3(); /* shadow registers */
2391 // gen_op_mtc0_srsconf4(); /* shadow registers */
2401 gen_op_mtc0_hwrena();
2415 gen_op_mtc0_count();
2418 /* 6,7 are implementation dependent */
2422 /* Stop translation as we may have switched the execution mode */
2423 ctx->bstate = BS_STOP;
2428 gen_op_mtc0_entryhi();
2438 gen_op_mtc0_compare();
2441 /* 6,7 are implementation dependent */
2445 /* Stop translation as we may have switched the execution mode */
2446 ctx->bstate = BS_STOP;
2451 gen_op_mtc0_status();
2455 gen_op_mtc0_intctl();
2459 gen_op_mtc0_srsctl();
2463 // gen_op_mtc0_srsmap(); /* shadow registers */
2469 /* Stop translation as we may have switched the execution mode */
2470 ctx->bstate = BS_STOP;
2475 gen_op_mtc0_cause();
2481 /* Stop translation as we may have switched the execution mode */
2482 ctx->bstate = BS_STOP;
2501 gen_op_mtc0_ebase();
2511 gen_op_mtc0_config0();
2519 gen_op_mtc0_config2();
2526 /* 6,7 are implementation dependent */
2528 rn = "Invalid config selector";
2531 /* Stop translation as we may have switched the execution mode */
2532 ctx->bstate = BS_STOP;
2547 gen_op_mtc0_watchlo0();
2551 // gen_op_mtc0_watchlo1();
2555 // gen_op_mtc0_watchlo2();
2559 // gen_op_mtc0_watchlo3();
2563 // gen_op_mtc0_watchlo4();
2567 // gen_op_mtc0_watchlo5();
2571 // gen_op_mtc0_watchlo6();
2575 // gen_op_mtc0_watchlo7();
2585 gen_op_mtc0_watchhi0();
2589 // gen_op_mtc0_watchhi1();
2593 // gen_op_mtc0_watchhi2();
2597 // gen_op_mtc0_watchhi3();
2601 // gen_op_mtc0_watchhi4();
2605 // gen_op_mtc0_watchhi5();
2609 // gen_op_mtc0_watchhi6();
2613 // gen_op_mtc0_watchhi7();
2623 /* 64 bit MMU only */
2624 gen_op_mtc0_xcontext();
2632 /* Officially reserved, but sel 0 is used for R1x000 framemask */
2635 gen_op_mtc0_framemask();
2644 rn = "Diagnostic"; /* implementation dependent */
2649 gen_op_mtc0_debug(); /* EJTAG support */
2653 // gen_op_mtc0_tracecontrol(); /* PDtrace support */
2654 rn = "TraceControl";
2657 // gen_op_mtc0_tracecontrol2(); /* PDtrace support */
2658 rn = "TraceControl2";
2661 // gen_op_mtc0_usertracedata(); /* PDtrace support */
2662 rn = "UserTraceData";
2665 // gen_op_mtc0_debug(); /* PDtrace support */
2671 /* Stop translation as we may have switched the execution mode */
2672 ctx->bstate = BS_STOP;
2677 gen_op_mtc0_depc(); /* EJTAG support */
2687 gen_op_mtc0_performance0();
2688 rn = "Performance0";
2691 // gen_op_mtc0_performance1();
2692 rn = "Performance1";
2695 // gen_op_mtc0_performance2();
2696 rn = "Performance2";
2699 // gen_op_mtc0_performance3();
2700 rn = "Performance3";
2703 // gen_op_mtc0_performance4();
2704 rn = "Performance4";
2707 // gen_op_mtc0_performance5();
2708 rn = "Performance5";
2711 // gen_op_mtc0_performance6();
2712 rn = "Performance6";
2715 // gen_op_mtc0_performance7();
2716 rn = "Performance7";
2742 gen_op_mtc0_taglo();
2749 gen_op_mtc0_datalo();
2762 gen_op_mtc0_taghi();
2769 gen_op_mtc0_datahi();
2780 gen_op_mtc0_errorepc();
2790 gen_op_mtc0_desave(); /* EJTAG support */
2796 /* Stop translation as we may have switched the execution mode */
2797 ctx->bstate = BS_STOP;
2802 #if defined MIPS_DEBUG_DISAS
2803 if (loglevel & CPU_LOG_TB_IN_ASM) {
2804 fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
2811 #if defined MIPS_DEBUG_DISAS
2812 if (loglevel & CPU_LOG_TB_IN_ASM) {
2813 fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
2817 generate_exception(ctx, EXCP_RI);
2820 static void gen_dmfc0 (DisasContext *ctx, int reg, int sel)
2822 const char *rn = "invalid";
2828 gen_op_mfc0_index();
2832 // gen_op_dmfc0_mvpcontrol(); /* MT ASE */
2836 // gen_op_dmfc0_mvpconf0(); /* MT ASE */
2840 // gen_op_dmfc0_mvpconf1(); /* MT ASE */
2850 gen_op_mfc0_random();
2854 // gen_op_dmfc0_vpecontrol(); /* MT ASE */
2858 // gen_op_dmfc0_vpeconf0(); /* MT ASE */
2862 // gen_op_dmfc0_vpeconf1(); /* MT ASE */
2866 // gen_op_dmfc0_YQMask(); /* MT ASE */
2870 // gen_op_dmfc0_vpeschedule(); /* MT ASE */
2874 // gen_op_dmfc0_vpeschefback(); /* MT ASE */
2875 rn = "VPEScheFBack";
2878 // gen_op_dmfc0_vpeopt(); /* MT ASE */
2888 gen_op_dmfc0_entrylo0();
2892 // gen_op_dmfc0_tcstatus(); /* MT ASE */
2896 // gen_op_dmfc0_tcbind(); /* MT ASE */
2900 // gen_op_dmfc0_tcrestart(); /* MT ASE */
2904 // gen_op_dmfc0_tchalt(); /* MT ASE */
2908 // gen_op_dmfc0_tccontext(); /* MT ASE */
2912 // gen_op_dmfc0_tcschedule(); /* MT ASE */
2916 // gen_op_dmfc0_tcschefback(); /* MT ASE */
2926 gen_op_dmfc0_entrylo1();
2936 gen_op_dmfc0_context();
2940 // gen_op_dmfc0_contextconfig(); /* SmartMIPS ASE */
2941 rn = "ContextConfig";
2950 gen_op_mfc0_pagemask();
2954 gen_op_mfc0_pagegrain();
2964 gen_op_mfc0_wired();
2968 // gen_op_dmfc0_srsconf0(); /* shadow registers */
2972 // gen_op_dmfc0_srsconf1(); /* shadow registers */
2976 // gen_op_dmfc0_srsconf2(); /* shadow registers */
2980 // gen_op_dmfc0_srsconf3(); /* shadow registers */
2984 // gen_op_dmfc0_srsconf4(); /* shadow registers */
2994 gen_op_mfc0_hwrena();
3004 gen_op_dmfc0_badvaddr();
3014 gen_op_mfc0_count();
3017 /* 6,7 are implementation dependent */
3025 gen_op_dmfc0_entryhi();
3035 gen_op_mfc0_compare();
3038 /* 6,7 are implementation dependent */
3046 gen_op_mfc0_status();
3050 gen_op_mfc0_intctl();
3054 gen_op_mfc0_srsctl();
3058 gen_op_mfc0_srsmap(); /* shadow registers */
3068 gen_op_mfc0_cause();
3092 gen_op_mfc0_ebase();
3102 gen_op_mfc0_config0();
3106 gen_op_mfc0_config1();
3110 gen_op_mfc0_config2();
3114 gen_op_mfc0_config3();
3117 /* 6,7 are implementation dependent */
3125 gen_op_dmfc0_lladdr();
3135 gen_op_dmfc0_watchlo0();
3139 // gen_op_dmfc0_watchlo1();
3143 // gen_op_dmfc0_watchlo2();
3147 // gen_op_dmfc0_watchlo3();
3151 // gen_op_dmfc0_watchlo4();
3155 // gen_op_dmfc0_watchlo5();
3159 // gen_op_dmfc0_watchlo6();
3163 // gen_op_dmfc0_watchlo7();
3173 gen_op_mfc0_watchhi0();
3177 // gen_op_mfc0_watchhi1();
3181 // gen_op_mfc0_watchhi2();
3185 // gen_op_mfc0_watchhi3();
3189 // gen_op_mfc0_watchhi4();
3193 // gen_op_mfc0_watchhi5();
3197 // gen_op_mfc0_watchhi6();
3201 // gen_op_mfc0_watchhi7();
3211 /* 64 bit MMU only */
3212 gen_op_dmfc0_xcontext();
3220 /* Officially reserved, but sel 0 is used for R1x000 framemask */
3223 gen_op_mfc0_framemask();
3232 rn = "'Diagnostic"; /* implementation dependent */
3237 gen_op_mfc0_debug(); /* EJTAG support */
3241 // gen_op_dmfc0_tracecontrol(); /* PDtrace support */
3242 rn = "TraceControl";
3245 // gen_op_dmfc0_tracecontrol2(); /* PDtrace support */
3246 rn = "TraceControl2";
3249 // gen_op_dmfc0_usertracedata(); /* PDtrace support */
3250 rn = "UserTraceData";
3253 // gen_op_dmfc0_debug(); /* PDtrace support */
3263 gen_op_dmfc0_depc(); /* EJTAG support */
3273 gen_op_mfc0_performance0();
3274 rn = "Performance0";
3277 // gen_op_dmfc0_performance1();
3278 rn = "Performance1";
3281 // gen_op_dmfc0_performance2();
3282 rn = "Performance2";
3285 // gen_op_dmfc0_performance3();
3286 rn = "Performance3";
3289 // gen_op_dmfc0_performance4();
3290 rn = "Performance4";
3293 // gen_op_dmfc0_performance5();
3294 rn = "Performance5";
3297 // gen_op_dmfc0_performance6();
3298 rn = "Performance6";
3301 // gen_op_dmfc0_performance7();
3302 rn = "Performance7";
3327 gen_op_mfc0_taglo();
3334 gen_op_mfc0_datalo();
3347 gen_op_mfc0_taghi();
3354 gen_op_mfc0_datahi();
3364 gen_op_dmfc0_errorepc();
3374 gen_op_mfc0_desave(); /* EJTAG support */
3384 #if defined MIPS_DEBUG_DISAS
3385 if (loglevel & CPU_LOG_TB_IN_ASM) {
3386 fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n",
3393 #if defined MIPS_DEBUG_DISAS
3394 if (loglevel & CPU_LOG_TB_IN_ASM) {
3395 fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n",
3399 generate_exception(ctx, EXCP_RI);
3402 static void gen_dmtc0 (DisasContext *ctx, int reg, int sel)
3404 const char *rn = "invalid";
3410 gen_op_mtc0_index();
3414 // gen_op_dmtc0_mvpcontrol(); /* MT ASE */
3418 // gen_op_dmtc0_mvpconf0(); /* MT ASE */
3422 // gen_op_dmtc0_mvpconf1(); /* MT ASE */
3436 // gen_op_dmtc0_vpecontrol(); /* MT ASE */
3440 // gen_op_dmtc0_vpeconf0(); /* MT ASE */
3444 // gen_op_dmtc0_vpeconf1(); /* MT ASE */
3448 // gen_op_dmtc0_YQMask(); /* MT ASE */
3452 // gen_op_dmtc0_vpeschedule(); /* MT ASE */
3456 // gen_op_dmtc0_vpeschefback(); /* MT ASE */
3457 rn = "VPEScheFBack";
3460 // gen_op_dmtc0_vpeopt(); /* MT ASE */
3470 gen_op_dmtc0_entrylo0();
3474 // gen_op_dmtc0_tcstatus(); /* MT ASE */
3478 // gen_op_dmtc0_tcbind(); /* MT ASE */
3482 // gen_op_dmtc0_tcrestart(); /* MT ASE */
3486 // gen_op_dmtc0_tchalt(); /* MT ASE */
3490 // gen_op_dmtc0_tccontext(); /* MT ASE */
3494 // gen_op_dmtc0_tcschedule(); /* MT ASE */
3498 // gen_op_dmtc0_tcschefback(); /* MT ASE */
3508 gen_op_dmtc0_entrylo1();
3518 gen_op_dmtc0_context();
3522 // gen_op_dmtc0_contextconfig(); /* SmartMIPS ASE */
3523 rn = "ContextConfig";
3532 gen_op_mtc0_pagemask();
3536 gen_op_mtc0_pagegrain();
3546 gen_op_mtc0_wired();
3550 // gen_op_dmtc0_srsconf0(); /* shadow registers */
3554 // gen_op_dmtc0_srsconf1(); /* shadow registers */
3558 // gen_op_dmtc0_srsconf2(); /* shadow registers */
3562 // gen_op_dmtc0_srsconf3(); /* shadow registers */
3566 // gen_op_dmtc0_srsconf4(); /* shadow registers */
3576 gen_op_mtc0_hwrena();
3590 gen_op_mtc0_count();
3593 /* 6,7 are implementation dependent */
3597 /* Stop translation as we may have switched the execution mode */
3598 ctx->bstate = BS_STOP;
3603 gen_op_mtc0_entryhi();
3613 gen_op_mtc0_compare();
3616 /* 6,7 are implementation dependent */
3620 /* Stop translation as we may have switched the execution mode */
3621 ctx->bstate = BS_STOP;
3626 gen_op_mtc0_status();
3630 gen_op_mtc0_intctl();
3634 gen_op_mtc0_srsctl();
3638 gen_op_mtc0_srsmap(); /* shadow registers */
3644 /* Stop translation as we may have switched the execution mode */
3645 ctx->bstate = BS_STOP;
3650 gen_op_mtc0_cause();
3656 /* Stop translation as we may have switched the execution mode */
3657 ctx->bstate = BS_STOP;
3676 gen_op_mtc0_ebase();
3686 gen_op_mtc0_config0();
3694 gen_op_mtc0_config2();
3701 /* 6,7 are implementation dependent */
3703 rn = "Invalid config selector";
3706 /* Stop translation as we may have switched the execution mode */
3707 ctx->bstate = BS_STOP;
3722 gen_op_dmtc0_watchlo0();
3726 // gen_op_dmtc0_watchlo1();
3730 // gen_op_dmtc0_watchlo2();
3734 // gen_op_dmtc0_watchlo3();
3738 // gen_op_dmtc0_watchlo4();
3742 // gen_op_dmtc0_watchlo5();
3746 // gen_op_dmtc0_watchlo6();
3750 // gen_op_dmtc0_watchlo7();
3760 gen_op_mtc0_watchhi0();
3764 // gen_op_dmtc0_watchhi1();
3768 // gen_op_dmtc0_watchhi2();
3772 // gen_op_dmtc0_watchhi3();
3776 // gen_op_dmtc0_watchhi4();
3780 // gen_op_dmtc0_watchhi5();
3784 // gen_op_dmtc0_watchhi6();
3788 // gen_op_dmtc0_watchhi7();
3798 /* 64 bit MMU only */
3799 gen_op_dmtc0_xcontext();
3807 /* Officially reserved, but sel 0 is used for R1x000 framemask */
3810 gen_op_mtc0_framemask();
3819 rn = "Diagnostic"; /* implementation dependent */
3824 gen_op_mtc0_debug(); /* EJTAG support */
3828 // gen_op_dmtc0_tracecontrol(); /* PDtrace support */
3829 rn = "TraceControl";
3832 // gen_op_dmtc0_tracecontrol2(); /* PDtrace support */
3833 rn = "TraceControl2";
3836 // gen_op_dmtc0_usertracedata(); /* PDtrace support */
3837 rn = "UserTraceData";
3840 // gen_op_dmtc0_debug(); /* PDtrace support */
3846 /* Stop translation as we may have switched the execution mode */
3847 ctx->bstate = BS_STOP;
3852 gen_op_dmtc0_depc(); /* EJTAG support */
3862 gen_op_mtc0_performance0();
3863 rn = "Performance0";
3866 // gen_op_dmtc0_performance1();
3867 rn = "Performance1";
3870 // gen_op_dmtc0_performance2();
3871 rn = "Performance2";
3874 // gen_op_dmtc0_performance3();
3875 rn = "Performance3";
3878 // gen_op_dmtc0_performance4();
3879 rn = "Performance4";
3882 // gen_op_dmtc0_performance5();
3883 rn = "Performance5";
3886 // gen_op_dmtc0_performance6();
3887 rn = "Performance6";
3890 // gen_op_dmtc0_performance7();
3891 rn = "Performance7";
3917 gen_op_mtc0_taglo();
3924 gen_op_mtc0_datalo();
3937 gen_op_mtc0_taghi();
3944 gen_op_mtc0_datahi();
3955 gen_op_dmtc0_errorepc();
3965 gen_op_mtc0_desave(); /* EJTAG support */
3971 /* Stop translation as we may have switched the execution mode */
3972 ctx->bstate = BS_STOP;
3977 #if defined MIPS_DEBUG_DISAS
3978 if (loglevel & CPU_LOG_TB_IN_ASM) {
3979 fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n",
3986 #if defined MIPS_DEBUG_DISAS
3987 if (loglevel & CPU_LOG_TB_IN_ASM) {
3988 fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n",
3992 generate_exception(ctx, EXCP_RI);
3995 static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd)
3997 const char *opn = "unk";
3999 if ((!ctx->CP0_Status & (1 << CP0St_CU0) &&
4000 (ctx->hflags & MIPS_HFLAG_UM)) &&
4001 !(ctx->hflags & MIPS_HFLAG_ERL) &&
4002 !(ctx->hflags & MIPS_HFLAG_EXL)) {
4003 if (loglevel & CPU_LOG_TB_IN_ASM) {
4004 fprintf(logfile, "CP0 is not usable\n");
4006 generate_exception (ctx, EXCP_CpU);
4016 gen_mfc0(ctx, rd, ctx->opcode & 0x7);
4017 gen_op_store_T0_gpr(rt);
4021 /* If we get an exception, we want to restart at next instruction */
4022 /* XXX: breaks for mtc in delay slot */
4024 save_cpu_state(ctx, 1);
4026 GEN_LOAD_REG_TN(T0, rt);
4027 gen_mtc0(ctx, rd, ctx->opcode & 0x7);
4035 gen_dmfc0(ctx, rd, ctx->opcode & 0x7);
4036 gen_op_store_T0_gpr(rt);
4040 /* If we get an exception, we want to restart at next instruction */
4041 /* XXX: breaks for dmtc in delay slot */
4043 save_cpu_state(ctx, 1);
4045 GEN_LOAD_REG_TN(T0, rt);
4046 gen_dmtc0(ctx, rd, ctx->opcode & 0x7);
4049 #if defined(MIPS_USES_R4K_TLB)
4069 save_cpu_state(ctx, 0);
4071 ctx->bstate = BS_EXCP;
4075 if (!(ctx->hflags & MIPS_HFLAG_DM)) {
4076 generate_exception(ctx, EXCP_RI);
4078 save_cpu_state(ctx, 0);
4080 ctx->bstate = BS_EXCP;
4085 /* If we get an exception, we want to restart at next instruction */
4087 save_cpu_state(ctx, 1);
4090 ctx->bstate = BS_EXCP;
4093 if (loglevel & CPU_LOG_TB_IN_ASM) {
4094 fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n",
4095 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4096 ((ctx->opcode >> 16) & 0x1F));
4098 generate_exception(ctx, EXCP_RI);
4101 MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
4104 /* CP1 Branches (before delay slot) */
4105 static void gen_compute_branch1 (DisasContext *ctx, uint32_t op,
4108 target_ulong btarget;
4110 btarget = ctx->pc + 4 + offset;
4115 MIPS_DEBUG("bc1f " TARGET_FMT_lx, btarget);
4119 MIPS_DEBUG("bc1fl " TARGET_FMT_lx, btarget);
4123 MIPS_DEBUG("bc1t " TARGET_FMT_lx, btarget);
4125 ctx->hflags |= MIPS_HFLAG_BC;
4129 MIPS_DEBUG("bc1tl " TARGET_FMT_lx, btarget);
4131 ctx->hflags |= MIPS_HFLAG_BL;
4134 MIPS_INVAL("cp1 branch/jump");
4135 generate_exception_err (ctx, EXCP_RI, 1);
4140 MIPS_DEBUG("enter ds: cond %02x target " TARGET_FMT_lx,
4141 ctx->hflags, btarget);
4142 ctx->btarget = btarget;
4147 /* Coprocessor 1 (FPU) */
4148 static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
4150 const char *opn = "unk";
4154 GEN_LOAD_FREG_FTN(WT0, fs);
4156 GEN_STORE_TN_REG(rt, T0);
4160 GEN_LOAD_REG_TN(T0, rt);
4162 GEN_STORE_FTN_FREG(fs, WT0);
4166 if (fs != 0 && fs != 31) {
4167 MIPS_INVAL("cfc1 freg");
4168 generate_exception_err (ctx, EXCP_RI, 1);
4171 GEN_LOAD_IMM_TN(T1, fs);
4173 GEN_STORE_TN_REG(rt, T0);
4177 if (fs != 0 && fs != 31) {
4178 MIPS_INVAL("ctc1 freg");
4179 generate_exception_err (ctx, EXCP_RI, 1);
4182 GEN_LOAD_IMM_TN(T1, fs);
4183 GEN_LOAD_REG_TN(T0, rt);
4189 /* Not implemented, fallthrough. */
4191 if (loglevel & CPU_LOG_TB_IN_ASM) {
4192 fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n",
4193 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4194 ((ctx->opcode >> 16) & 0x1F));
4196 generate_exception_err (ctx, EXCP_RI, 1);
4199 MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
4202 /* verify if floating point register is valid; an operation is not defined
4203 * if bit 0 of any register specification is set and the FR bit in the
4204 * Status register equals zero, since the register numbers specify an
4205 * even-odd pair of adjacent coprocessor general registers. When the FR bit
4206 * in the Status register equals one, both even and odd register numbers
4207 * are valid. This limitation exists only for 64 bit wide (d,l) registers.
4209 * Multiple 64 bit wide registers can be checked by calling
4210 * CHECK_FR(ctx, freg1 | freg2 | ... | fregN);
4212 #define CHECK_FR(ctx, freg) do { \
4213 if (!((ctx)->CP0_Status & (1<<CP0St_FR)) && ((freg) & 1)) { \
4214 generate_exception_err (ctx, EXCP_RI, 1); \
4219 #define FOP(func, fmt) (((fmt) << 21) | (func))
4221 static void gen_farith (DisasContext *ctx, uint32_t op1, int ft, int fs, int fd)
4223 const char *opn = "unk";
4224 const char *condnames[] = {
4243 uint32_t func = ctx->opcode & 0x3f;
4245 switch (ctx->opcode & FOP(0x3f, 0x1f)) {
4247 CHECK_FR(ctx, fs | ft | fd);
4248 GEN_LOAD_FREG_FTN(DT0, fs);
4249 GEN_LOAD_FREG_FTN(DT1, ft);
4250 gen_op_float_add_d();
4251 GEN_STORE_FTN_FREG(fd, DT2);
4256 CHECK_FR(ctx, fs | ft | fd);
4257 GEN_LOAD_FREG_FTN(DT0, fs);
4258 GEN_LOAD_FREG_FTN(DT1, ft);
4259 gen_op_float_sub_d();
4260 GEN_STORE_FTN_FREG(fd, DT2);
4265 CHECK_FR(ctx, fs | ft | fd);
4266 GEN_LOAD_FREG_FTN(DT0, fs);
4267 GEN_LOAD_FREG_FTN(DT1, ft);
4268 gen_op_float_mul_d();
4269 GEN_STORE_FTN_FREG(fd, DT2);
4274 CHECK_FR(ctx, fs | ft | fd);
4275 GEN_LOAD_FREG_FTN(DT0, fs);
4276 GEN_LOAD_FREG_FTN(DT1, ft);
4277 gen_op_float_div_d();
4278 GEN_STORE_FTN_FREG(fd, DT2);
4283 CHECK_FR(ctx, fs | fd);
4284 GEN_LOAD_FREG_FTN(DT0, fs);
4285 gen_op_float_sqrt_d();
4286 GEN_STORE_FTN_FREG(fd, DT2);
4290 CHECK_FR(ctx, fs | fd);
4291 GEN_LOAD_FREG_FTN(DT0, fs);
4292 gen_op_float_abs_d();
4293 GEN_STORE_FTN_FREG(fd, DT2);
4297 CHECK_FR(ctx, fs | fd);
4298 GEN_LOAD_FREG_FTN(DT0, fs);
4299 gen_op_float_mov_d();
4300 GEN_STORE_FTN_FREG(fd, DT2);
4304 CHECK_FR(ctx, fs | fd);
4305 GEN_LOAD_FREG_FTN(DT0, fs);
4306 gen_op_float_chs_d();
4307 GEN_STORE_FTN_FREG(fd, DT2);
4316 GEN_LOAD_FREG_FTN(DT0, fs);
4317 gen_op_float_roundw_d();
4318 GEN_STORE_FTN_FREG(fd, WT2);
4323 GEN_LOAD_FREG_FTN(DT0, fs);
4324 gen_op_float_truncw_d();
4325 GEN_STORE_FTN_FREG(fd, WT2);
4330 GEN_LOAD_FREG_FTN(DT0, fs);
4331 gen_op_float_ceilw_d();
4332 GEN_STORE_FTN_FREG(fd, WT2);
4337 GEN_LOAD_FREG_FTN(DT0, fs);
4338 gen_op_float_floorw_d();
4339 GEN_STORE_FTN_FREG(fd, WT2);
4344 GEN_LOAD_FREG_FTN(WT0, fs);
4345 gen_op_float_cvtd_s();
4346 GEN_STORE_FTN_FREG(fd, DT2);
4351 GEN_LOAD_FREG_FTN(WT0, fs);
4352 gen_op_float_cvtd_w();
4353 GEN_STORE_FTN_FREG(fd, DT2);
4372 CHECK_FR(ctx, fs | ft);
4373 GEN_LOAD_FREG_FTN(DT0, fs);
4374 GEN_LOAD_FREG_FTN(DT1, ft);
4376 opn = condnames[func-48];
4379 GEN_LOAD_FREG_FTN(WT0, fs);
4380 GEN_LOAD_FREG_FTN(WT1, ft);
4381 gen_op_float_add_s();
4382 GEN_STORE_FTN_FREG(fd, WT2);
4387 GEN_LOAD_FREG_FTN(WT0, fs);
4388 GEN_LOAD_FREG_FTN(WT1, ft);
4389 gen_op_float_sub_s();
4390 GEN_STORE_FTN_FREG(fd, WT2);
4395 GEN_LOAD_FREG_FTN(WT0, fs);
4396 GEN_LOAD_FREG_FTN(WT1, ft);
4397 gen_op_float_mul_s();
4398 GEN_STORE_FTN_FREG(fd, WT2);
4403 GEN_LOAD_FREG_FTN(WT0, fs);
4404 GEN_LOAD_FREG_FTN(WT1, ft);
4405 gen_op_float_div_s();
4406 GEN_STORE_FTN_FREG(fd, WT2);
4411 GEN_LOAD_FREG_FTN(WT0, fs);
4412 gen_op_float_sqrt_s();
4413 GEN_STORE_FTN_FREG(fd, WT2);
4417 GEN_LOAD_FREG_FTN(WT0, fs);
4418 gen_op_float_abs_s();
4419 GEN_STORE_FTN_FREG(fd, WT2);
4423 GEN_LOAD_FREG_FTN(WT0, fs);
4424 gen_op_float_mov_s();
4425 GEN_STORE_FTN_FREG(fd, WT2);
4429 GEN_LOAD_FREG_FTN(WT0, fs);
4430 gen_op_float_chs_s();
4431 GEN_STORE_FTN_FREG(fd, WT2);
4435 GEN_LOAD_FREG_FTN(WT0, fs);
4436 gen_op_float_roundw_s();
4437 GEN_STORE_FTN_FREG(fd, WT2);
4441 GEN_LOAD_FREG_FTN(WT0, fs);
4442 gen_op_float_truncw_s();
4443 GEN_STORE_FTN_FREG(fd, WT2);
4448 GEN_LOAD_FREG_FTN(DT0, fs);
4449 gen_op_float_cvts_d();
4450 GEN_STORE_FTN_FREG(fd, WT2);
4454 GEN_LOAD_FREG_FTN(WT0, fs);
4455 gen_op_float_cvts_w();
4456 GEN_STORE_FTN_FREG(fd, WT2);
4460 GEN_LOAD_FREG_FTN(WT0, fs);
4461 gen_op_float_cvtw_s();
4462 GEN_STORE_FTN_FREG(fd, WT2);
4467 GEN_LOAD_FREG_FTN(DT0, fs);
4468 gen_op_float_cvtw_d();
4469 GEN_STORE_FTN_FREG(fd, WT2);
4488 GEN_LOAD_FREG_FTN(WT0, fs);
4489 GEN_LOAD_FREG_FTN(WT1, ft);
4491 opn = condnames[func-48];
4494 if (loglevel & CPU_LOG_TB_IN_ASM) {
4495 fprintf(logfile, "Invalid FP arith function: %08x %03x %03x %03x\n",
4496 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4497 ((ctx->opcode >> 16) & 0x1F));
4499 generate_exception_err (ctx, EXCP_RI, 1);
4503 MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
4505 MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
4508 static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf)
4513 ccbit = 1 << (24 + cc);
4517 gen_op_movf(ccbit, rd, rs);
4519 gen_op_movt(ccbit, rd, rs);
4522 /* ISA extensions (ASEs) */
4523 /* MIPS16 extension to MIPS32 */
4524 /* SmartMIPS extension to MIPS32 */
4526 #ifdef MIPS_HAS_MIPS64
4527 /* Coprocessor 3 (FPU) */
4529 /* MDMX extension to MIPS64 */
4530 /* MIPS-3D extension to MIPS64 */
4534 static void gen_blikely(DisasContext *ctx)
4537 l1 = gen_new_label();
4539 gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK);
4540 gen_goto_tb(ctx, 1, ctx->pc + 4);
4544 static void decode_opc (CPUState *env, DisasContext *ctx)
4548 uint32_t op, op1, op2;
4551 /* make sure instructions are on a word boundary */
4552 if (ctx->pc & 0x3) {
4553 generate_exception(ctx, EXCP_AdEL);
4557 if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) {
4558 /* Handle blikely not taken case */
4559 MIPS_DEBUG("blikely condition (" TARGET_FMT_lx ")", ctx->pc + 4);
4562 op = MASK_OP_MAJOR(ctx->opcode);
4563 rs = (ctx->opcode >> 21) & 0x1f;
4564 rt = (ctx->opcode >> 16) & 0x1f;
4565 rd = (ctx->opcode >> 11) & 0x1f;
4566 sa = (ctx->opcode >> 6) & 0x1f;
4567 imm = (int16_t)ctx->opcode;
4570 op1 = MASK_SPECIAL(ctx->opcode);
4572 case OPC_SLL: /* Arithmetic with immediate */
4573 case OPC_SRL ... OPC_SRA:
4574 gen_arith_imm(ctx, op1, rd, rt, sa);
4576 case OPC_SLLV: /* Arithmetic */
4577 case OPC_SRLV ... OPC_SRAV:
4578 case OPC_MOVZ ... OPC_MOVN:
4579 case OPC_ADD ... OPC_NOR:
4580 case OPC_SLT ... OPC_SLTU:
4581 gen_arith(ctx, op1, rd, rs, rt);
4583 case OPC_MULT ... OPC_DIVU:
4584 gen_muldiv(ctx, op1, rs, rt);
4586 case OPC_JR ... OPC_JALR:
4587 gen_compute_branch(ctx, op1, rs, rd, sa);
4589 case OPC_TGE ... OPC_TEQ: /* Traps */
4591 gen_trap(ctx, op1, rs, rt, -1);
4593 case OPC_MFHI: /* Move from HI/LO */
4595 gen_HILO(ctx, op1, rd);
4598 case OPC_MTLO: /* Move to HI/LO */
4599 gen_HILO(ctx, op1, rs);
4601 case OPC_PMON: /* Pmon entry point */
4605 generate_exception(ctx, EXCP_SYSCALL);
4606 ctx->bstate = BS_EXCP;
4609 generate_exception(ctx, EXCP_BREAK);
4611 case OPC_SPIM: /* SPIM ? */
4612 /* Implemented as RI exception for now. */
4613 MIPS_INVAL("spim (unofficial)");
4614 generate_exception(ctx, EXCP_RI);
4617 /* Treat as a noop. */
4621 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4622 gen_op_cp1_enabled();
4623 gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7,
4624 (ctx->opcode >> 16) & 1);
4626 generate_exception(ctx, EXCP_RI);
4630 #ifdef MIPS_HAS_MIPS64
4631 /* MIPS64 specific opcodes */
4633 case OPC_DSRL ... OPC_DSRA:
4635 case OPC_DSRL32 ... OPC_DSRA32:
4636 gen_arith_imm(ctx, op1, rd, rt, sa);
4639 case OPC_DSRLV ... OPC_DSRAV:
4640 case OPC_DADD ... OPC_DSUBU:
4641 gen_arith(ctx, op1, rd, rs, rt);
4643 case OPC_DMULT ... OPC_DDIVU:
4644 gen_muldiv(ctx, op1, rs, rt);
4647 default: /* Invalid */
4648 MIPS_INVAL("special");
4649 generate_exception(ctx, EXCP_RI);
4654 op1 = MASK_SPECIAL2(ctx->opcode);
4656 case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */
4657 case OPC_MSUB ... OPC_MSUBU:
4658 gen_muldiv(ctx, op1, rs, rt);
4661 gen_arith(ctx, op1, rd, rs, rt);
4663 case OPC_CLZ ... OPC_CLO:
4664 gen_cl(ctx, op1, rd, rs);
4667 /* XXX: not clear which exception should be raised
4668 * when in debug mode...
4670 if (!(ctx->hflags & MIPS_HFLAG_DM)) {
4671 generate_exception(ctx, EXCP_DBp);
4673 generate_exception(ctx, EXCP_DBp);
4675 /* Treat as a noop */
4677 #ifdef MIPS_HAS_MIPS64
4678 case OPC_DCLZ ... OPC_DCLO:
4679 gen_cl(ctx, op1, rd, rs);
4682 default: /* Invalid */
4683 MIPS_INVAL("special2");
4684 generate_exception(ctx, EXCP_RI);
4689 op1 = MASK_SPECIAL3(ctx->opcode);
4693 gen_bitops(ctx, op1, rt, rs, sa, rd);
4696 op2 = MASK_BSHFL(ctx->opcode);
4699 GEN_LOAD_REG_TN(T1, rt);
4703 GEN_LOAD_REG_TN(T1, rt);
4707 GEN_LOAD_REG_TN(T1, rt);
4710 default: /* Invalid */
4711 MIPS_INVAL("bshfl");
4712 generate_exception(ctx, EXCP_RI);
4715 GEN_STORE_TN_REG(rd, T0);
4720 gen_op_rdhwr_cpunum();
4723 gen_op_rdhwr_synci_step();
4729 gen_op_rdhwr_ccres();
4731 default: /* Invalid */
4732 MIPS_INVAL("rdhwr");
4733 generate_exception(ctx, EXCP_RI);
4736 GEN_STORE_TN_REG(rt, T0);
4738 #ifdef MIPS_HAS_MIPS64
4739 case OPC_DEXTM ... OPC_DEXT:
4740 case OPC_DINSM ... OPC_DINS:
4741 gen_bitops(ctx, op1, rt, rs, sa, rd);
4744 op2 = MASK_DBSHFL(ctx->opcode);
4747 GEN_LOAD_REG_TN(T1, rt);
4751 GEN_LOAD_REG_TN(T1, rt);
4754 default: /* Invalid */
4755 MIPS_INVAL("dbshfl");
4756 generate_exception(ctx, EXCP_RI);
4759 GEN_STORE_TN_REG(rd, T0);
4761 default: /* Invalid */
4762 MIPS_INVAL("special3");
4763 generate_exception(ctx, EXCP_RI);
4768 op1 = MASK_REGIMM(ctx->opcode);
4770 case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */
4771 case OPC_BLTZAL ... OPC_BGEZALL:
4772 gen_compute_branch(ctx, op1, rs, -1, imm << 2);
4774 case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */
4776 gen_trap(ctx, op1, rs, -1, imm);
4781 default: /* Invalid */
4782 MIPS_INVAL("REGIMM");
4783 generate_exception(ctx, EXCP_RI);
4788 op1 = MASK_CP0(ctx->opcode);
4792 #ifdef MIPS_HAS_MIPS64
4796 gen_cp0(ctx, op1, rt, rd);
4798 case OPC_C0_FIRST ... OPC_C0_LAST:
4799 gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd);
4802 op2 = MASK_MFMC0(ctx->opcode);
4806 /* Stop translation as we may have switched the execution mode */
4807 ctx->bstate = BS_STOP;
4811 /* Stop translation as we may have switched the execution mode */
4812 ctx->bstate = BS_STOP;
4814 default: /* Invalid */
4815 MIPS_INVAL("MFMC0");
4816 generate_exception(ctx, EXCP_RI);
4819 GEN_STORE_TN_REG(rt, T0);
4821 /* Shadow registers (not implemented). */
4825 generate_exception(ctx, EXCP_RI);
4829 case OPC_ADDI ... OPC_LUI: /* Arithmetic with immediate opcode */
4830 gen_arith_imm(ctx, op, rt, rs, imm);
4832 case OPC_J ... OPC_JAL: /* Jump */
4833 offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
4834 gen_compute_branch(ctx, op, rs, rt, offset);
4836 case OPC_BEQ ... OPC_BGTZ: /* Branch */
4837 case OPC_BEQL ... OPC_BGTZL:
4838 gen_compute_branch(ctx, op, rs, rt, imm << 2);
4840 case OPC_LB ... OPC_LWR: /* Load and stores */
4841 case OPC_SB ... OPC_SW:
4845 gen_ldst(ctx, op, rt, rs, imm);
4848 /* Treat as a noop */
4851 /* Treat as a noop */
4854 /* Floating point. */
4859 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4860 save_cpu_state(ctx, 1);
4861 gen_op_cp1_enabled();
4862 gen_flt_ldst(ctx, op, rt, rs, imm);
4864 generate_exception_err(ctx, EXCP_CpU, 1);
4869 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4870 save_cpu_state(ctx, 1);
4871 gen_op_cp1_enabled();
4872 op1 = MASK_CP1(ctx->opcode);
4878 #ifdef MIPS_HAS_MIPS64
4882 gen_cp1(ctx, op1, rt, rd);
4885 gen_compute_branch1(ctx, MASK_CP1_BCOND(ctx->opcode), imm << 2);
4891 gen_farith(ctx, MASK_CP1_FUNC(ctx->opcode), rt, rd, sa);
4894 generate_exception_err(ctx, EXCP_RI, 1);
4898 generate_exception_err(ctx, EXCP_CpU, 1);
4908 /* COP2: Not implemented. */
4909 generate_exception_err(ctx, EXCP_CpU, 2);
4913 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4914 gen_op_cp1_enabled();
4915 op1 = MASK_CP3(ctx->opcode);
4917 /* Not implemented */
4919 generate_exception_err(ctx, EXCP_RI, 1);
4923 generate_exception(ctx, EXCP_RI);
4927 #ifdef MIPS_HAS_MIPS64
4928 /* MIPS64 opcodes */
4930 case OPC_LDL ... OPC_LDR:
4931 case OPC_SDL ... OPC_SDR:
4936 gen_ldst(ctx, op, rt, rs, imm);
4938 case OPC_DADDI ... OPC_DADDIU:
4939 gen_arith_imm(ctx, op, rt, rs, imm);
4942 #ifdef MIPS_HAS_MIPS16
4944 /* MIPS16: Not implemented. */
4946 #ifdef MIPS_HAS_MDMX
4948 /* MDMX: Not implemented. */
4950 default: /* Invalid */
4952 generate_exception(ctx, EXCP_RI);
4955 if (ctx->hflags & MIPS_HFLAG_BMASK) {
4956 int hflags = ctx->hflags;
4957 /* Branches completion */
4958 ctx->hflags &= ~MIPS_HFLAG_BMASK;
4959 ctx->bstate = BS_BRANCH;
4960 save_cpu_state(ctx, 0);
4961 switch (hflags & MIPS_HFLAG_BMASK) {
4963 /* unconditional branch */
4964 MIPS_DEBUG("unconditional branch");
4965 gen_goto_tb(ctx, 0, ctx->btarget);
4968 /* blikely taken case */
4969 MIPS_DEBUG("blikely branch taken");
4970 gen_goto_tb(ctx, 0, ctx->btarget);
4973 /* Conditional branch */
4974 MIPS_DEBUG("conditional branch");
4977 l1 = gen_new_label();
4979 gen_goto_tb(ctx, 1, ctx->pc + 4);
4981 gen_goto_tb(ctx, 0, ctx->btarget);
4985 /* unconditional branch to register */
4986 MIPS_DEBUG("branch to register");
4990 MIPS_DEBUG("unknown branch");
4996 int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
4999 DisasContext ctx, *ctxp = &ctx;
5000 target_ulong pc_start;
5001 uint16_t *gen_opc_end;
5004 if (search_pc && loglevel)
5005 fprintf (logfile, "search pc %d\n", search_pc);
5008 gen_opc_ptr = gen_opc_buf;
5009 gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
5010 gen_opparam_ptr = gen_opparam_buf;
5015 ctx.bstate = BS_NONE;
5016 /* Restore delay slot state from the tb context. */
5017 ctx.hflags = tb->flags;
5018 ctx.saved_hflags = ctx.hflags;
5019 if (ctx.hflags & MIPS_HFLAG_BR) {
5020 gen_op_restore_breg_target();
5021 } else if (ctx.hflags & MIPS_HFLAG_B) {
5022 ctx.btarget = env->btarget;
5023 } else if (ctx.hflags & MIPS_HFLAG_BMASK) {
5024 /* If we are in the delay slot of a conditional branch,
5025 * restore the branch condition from env->bcond to T2
5027 ctx.btarget = env->btarget;
5028 gen_op_restore_bcond();
5030 #if defined(CONFIG_USER_ONLY)
5033 ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM);
5035 ctx.CP0_Status = env->CP0_Status;
5037 if (loglevel & CPU_LOG_TB_CPU) {
5038 fprintf(logfile, "------------------------------------------------\n");
5039 /* FIXME: This may print out stale hflags from env... */
5040 cpu_dump_state(env, logfile, fprintf, 0);
5043 #if defined MIPS_DEBUG_DISAS
5044 if (loglevel & CPU_LOG_TB_IN_ASM)
5045 fprintf(logfile, "\ntb %p super %d cond %04x\n",
5046 tb, ctx.mem_idx, ctx.hflags);
5048 while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
5049 if (env->nb_breakpoints > 0) {
5050 for(j = 0; j < env->nb_breakpoints; j++) {
5051 if (env->breakpoints[j] == ctx.pc) {
5052 save_cpu_state(ctxp, 1);
5053 ctx.bstate = BS_BRANCH;
5055 goto done_generating;
5061 j = gen_opc_ptr - gen_opc_buf;
5065 gen_opc_instr_start[lj++] = 0;
5067 gen_opc_pc[lj] = ctx.pc;
5068 gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK;
5069 gen_opc_instr_start[lj] = 1;
5071 ctx.opcode = ldl_code(ctx.pc);
5072 decode_opc(env, &ctx);
5075 if (env->singlestep_enabled)
5078 if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
5081 #if defined (MIPS_SINGLE_STEP)
5085 if (env->singlestep_enabled) {
5086 save_cpu_state(ctxp, ctx.bstate == BS_NONE);
5088 goto done_generating;
5090 else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) {
5091 save_cpu_state(ctxp, 0);
5092 gen_goto_tb(&ctx, 0, ctx.pc);
5095 /* Generate the return instruction */
5098 *gen_opc_ptr = INDEX_op_end;
5100 j = gen_opc_ptr - gen_opc_buf;
5103 gen_opc_instr_start[lj++] = 0;
5106 tb->size = ctx.pc - pc_start;
5109 #if defined MIPS_DEBUG_DISAS
5110 if (loglevel & CPU_LOG_TB_IN_ASM)
5111 fprintf(logfile, "\n");
5113 if (loglevel & CPU_LOG_TB_IN_ASM) {
5114 fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
5115 target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
5116 fprintf(logfile, "\n");
5118 if (loglevel & CPU_LOG_TB_OP) {
5119 fprintf(logfile, "OP:\n");
5120 dump_ops(gen_opc_buf, gen_opparam_buf);
5121 fprintf(logfile, "\n");
5123 if (loglevel & CPU_LOG_TB_CPU) {
5124 fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
5131 int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
5133 return gen_intermediate_code_internal(env, tb, 0);
5136 int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
5138 return gen_intermediate_code_internal(env, tb, 1);
5141 void fpu_dump_state(CPUState *env, FILE *f,
5142 int (*fpu_fprintf)(FILE *f, const char *fmt, ...),
5147 # define printfpr(fp) do { \
5148 fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \
5149 (fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \
5152 fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n",
5153 env->fcr0, env->fcr31,
5154 (env->CP0_Status & (1 << CP0St_FR)) != 0);
5155 fpu_fprintf(f, "FT0: "); printfpr(&env->ft0);
5156 fpu_fprintf(f, "FT1: "); printfpr(&env->ft1);
5157 fpu_fprintf(f, "FT2: "); printfpr(&env->ft2);
5158 for(i = 0; i < 32; i += 2) {
5159 fpu_fprintf(f, "%s: ", fregnames[i]);
5160 printfpr(FPR(env, i));
5166 void dump_fpu (CPUState *env)
5169 fprintf(logfile, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx " LO=0x" TARGET_FMT_lx " ds %04x " TARGET_FMT_lx " %d\n",
5170 env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond);
5171 fpu_dump_state(env, logfile, fprintf, 0);
5175 #if defined(MIPS_HAS_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
5176 /* Debug help: The architecture requires 32bit code to maintain proper
5177 sign-extened values on 64bit machines. */
5179 #define SIGN_EXT_P(val) ((((val) & ~0x7fffffff) == 0) || (((val) & ~0x7fffffff) == ~0x7fffffff))
5181 void cpu_mips_check_sign_extensions (CPUState *env, FILE *f,
5182 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
5187 if (!SIGN_EXT_P(env->PC))
5188 cpu_fprintf(f, "BROKEN: pc=0x" TARGET_FMT_lx "\n", env->PC);
5189 if (!SIGN_EXT_P(env->HI))
5190 cpu_fprintf(f, "BROKEN: HI=0x" TARGET_FMT_lx "\n", env->HI);
5191 if (!SIGN_EXT_P(env->LO))
5192 cpu_fprintf(f, "BROKEN: LO=0x" TARGET_FMT_lx "\n", env->LO);
5193 if (!SIGN_EXT_P(env->btarget))
5194 cpu_fprintf(f, "BROKEN: btarget=0x" TARGET_FMT_lx "\n", env->btarget);
5196 for (i = 0; i < 32; i++) {
5197 if (!SIGN_EXT_P(env->gpr[i]))
5198 cpu_fprintf(f, "BROKEN: %s=0x" TARGET_FMT_lx "\n", regnames[i], env->gpr[i]);
5201 if (!SIGN_EXT_P(env->CP0_EPC))
5202 cpu_fprintf(f, "BROKEN: EPC=0x" TARGET_FMT_lx "\n", env->CP0_EPC);
5203 if (!SIGN_EXT_P(env->CP0_LLAddr))
5204 cpu_fprintf(f, "BROKEN: LLAddr=0x" TARGET_FMT_lx "\n", env->CP0_LLAddr);
5208 void cpu_dump_state (CPUState *env, FILE *f,
5209 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
5215 cpu_fprintf(f, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx " LO=0x" TARGET_FMT_lx " ds %04x " TARGET_FMT_lx " %d\n",
5216 env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond);
5217 for (i = 0; i < 32; i++) {
5219 cpu_fprintf(f, "GPR%02d:", i);
5220 cpu_fprintf(f, " %s " TARGET_FMT_lx, regnames[i], env->gpr[i]);
5222 cpu_fprintf(f, "\n");
5225 c0_status = env->CP0_Status;
5226 if (env->hflags & MIPS_HFLAG_UM)
5227 c0_status |= (1 << CP0St_UM);
5228 if (env->hflags & MIPS_HFLAG_ERL)
5229 c0_status |= (1 << CP0St_ERL);
5230 if (env->hflags & MIPS_HFLAG_EXL)
5231 c0_status |= (1 << CP0St_EXL);
5233 cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TARGET_FMT_lx "\n",
5234 c0_status, env->CP0_Cause, env->CP0_EPC);
5235 cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x" TARGET_FMT_lx "\n",
5236 env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr);
5237 if (c0_status & (1 << CP0St_CU1))
5238 fpu_dump_state(env, f, cpu_fprintf, flags);
5239 #if defined(MIPS_HAS_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
5240 cpu_mips_check_sign_extensions(env, f, cpu_fprintf, flags);
5244 CPUMIPSState *cpu_mips_init (void)
5248 env = qemu_mallocz(sizeof(CPUMIPSState));
5256 void cpu_reset (CPUMIPSState *env)
5258 memset(env, 0, offsetof(CPUMIPSState, breakpoints));
5263 #if !defined(CONFIG_USER_ONLY)
5264 if (env->hflags & MIPS_HFLAG_BMASK) {
5265 /* If the exception was raised from a delay slot,
5266 * come back to the jump. */
5267 env->CP0_ErrorEPC = env->PC - 4;
5268 env->hflags &= ~MIPS_HFLAG_BMASK;
5270 env->CP0_ErrorEPC = env->PC;
5272 env->PC = (int32_t)0xBFC00000;
5273 #if defined (MIPS_USES_R4K_TLB)
5274 env->CP0_Random = MIPS_TLB_NB - 1;
5275 env->tlb_in_use = MIPS_TLB_NB;
5278 /* SMP not implemented */
5279 env->CP0_EBase = 0x80000000;
5280 env->CP0_Config0 = MIPS_CONFIG0;
5281 env->CP0_Config1 = MIPS_CONFIG1;
5282 #ifdef MIPS_USES_FPU
5283 /* basic FPU register support */
5284 env->CP0_Config1 |= (1 << CP0C1_FP);
5286 env->CP0_Config2 = MIPS_CONFIG2;
5287 env->CP0_Config3 = MIPS_CONFIG3;
5288 env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
5289 env->CP0_WatchLo = 0;
5290 env->hflags = MIPS_HFLAG_ERL;
5291 /* Count register increments in debug mode, EJTAG version 1 */
5292 env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
5293 env->CP0_PRid = MIPS_CPU;
5295 env->exception_index = EXCP_NONE;
5296 #if defined(CONFIG_USER_ONLY)
5297 env->hflags |= MIPS_HFLAG_UM;
5298 env->user_mode_only = 1;
5300 env->fcr0 = MIPS_FCR0;
5301 /* XXX some guesswork here, values are CPU specific */
5302 env->SYNCI_Step = 16;