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, \
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
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(ctx, EXCP_RI);
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 uimm = (uint16_t)imm;
862 uimm = (int32_t)imm; /* Sign extend to 32 bits */
867 GEN_LOAD_REG_TN(T0, rs);
868 GEN_LOAD_IMM_TN(T1, uimm);
872 GEN_LOAD_IMM_TN(T0, uimm);
886 GEN_LOAD_REG_TN(T0, rs);
887 GEN_LOAD_IMM_TN(T1, uimm);
892 save_cpu_state(ctx, 1);
902 save_cpu_state(ctx, 1);
943 switch ((ctx->opcode >> 21) & 0x1f) {
953 MIPS_INVAL("invalid srl flag");
954 generate_exception(ctx, EXCP_RI);
968 switch ((ctx->opcode >> 21) & 0x1f) {
978 MIPS_INVAL("invalid dsrl flag");
979 generate_exception(ctx, EXCP_RI);
992 switch ((ctx->opcode >> 21) & 0x1f) {
1002 MIPS_INVAL("invalid dsrl32 flag");
1003 generate_exception(ctx, EXCP_RI);
1009 MIPS_INVAL("imm arith");
1010 generate_exception(ctx, EXCP_RI);
1013 GEN_STORE_TN_REG(rt, T0);
1014 MIPS_DEBUG("%s %s, %s, %x", opn, regnames[rt], regnames[rs], uimm);
1018 static void gen_arith (DisasContext *ctx, uint32_t opc,
1019 int rd, int rs, int rt)
1021 const char *opn = "unk";
1023 if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB
1024 && opc != OPC_DADD && opc != OPC_DSUB) {
1025 /* if no destination, treat it as a NOP
1026 * For add & sub, we must generate the overflow exception when needed.
1031 GEN_LOAD_REG_TN(T0, rs);
1032 GEN_LOAD_REG_TN(T1, rt);
1035 save_cpu_state(ctx, 1);
1044 save_cpu_state(ctx, 1);
1052 #ifdef TARGET_MIPS64
1054 save_cpu_state(ctx, 1);
1063 save_cpu_state(ctx, 1);
1117 switch ((ctx->opcode >> 6) & 0x1f) {
1127 MIPS_INVAL("invalid srlv flag");
1128 generate_exception(ctx, EXCP_RI);
1132 #ifdef TARGET_MIPS64
1142 switch ((ctx->opcode >> 6) & 0x1f) {
1152 MIPS_INVAL("invalid dsrlv flag");
1153 generate_exception(ctx, EXCP_RI);
1159 MIPS_INVAL("arith");
1160 generate_exception(ctx, EXCP_RI);
1163 GEN_STORE_TN_REG(rd, T0);
1165 MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
1168 /* Arithmetic on HI/LO registers */
1169 static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg)
1171 const char *opn = "unk";
1173 if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) {
1174 /* Treat as a NOP */
1181 GEN_STORE_TN_REG(reg, T0);
1186 GEN_STORE_TN_REG(reg, T0);
1190 GEN_LOAD_REG_TN(T0, reg);
1195 GEN_LOAD_REG_TN(T0, reg);
1201 generate_exception(ctx, EXCP_RI);
1204 MIPS_DEBUG("%s %s", opn, regnames[reg]);
1207 static void gen_muldiv (DisasContext *ctx, uint32_t opc,
1210 const char *opn = "unk";
1212 GEN_LOAD_REG_TN(T0, rs);
1213 GEN_LOAD_REG_TN(T1, rt);
1231 #ifdef TARGET_MIPS64
1266 MIPS_INVAL("mul/div");
1267 generate_exception(ctx, EXCP_RI);
1270 MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
1273 static void gen_cl (DisasContext *ctx, uint32_t opc,
1276 const char *opn = "unk";
1278 /* Treat as a NOP */
1282 GEN_LOAD_REG_TN(T0, rs);
1292 #ifdef TARGET_MIPS64
1304 generate_exception(ctx, EXCP_RI);
1307 gen_op_store_T0_gpr(rd);
1308 MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
1312 static void gen_trap (DisasContext *ctx, uint32_t opc,
1313 int rs, int rt, int16_t imm)
1318 /* Load needed operands */
1326 /* Compare two registers */
1328 GEN_LOAD_REG_TN(T0, rs);
1329 GEN_LOAD_REG_TN(T1, rt);
1339 /* Compare register to immediate */
1340 if (rs != 0 || imm != 0) {
1341 GEN_LOAD_REG_TN(T0, rs);
1342 GEN_LOAD_IMM_TN(T1, (int32_t)imm);
1349 case OPC_TEQ: /* rs == rs */
1350 case OPC_TEQI: /* r0 == 0 */
1351 case OPC_TGE: /* rs >= rs */
1352 case OPC_TGEI: /* r0 >= 0 */
1353 case OPC_TGEU: /* rs >= rs unsigned */
1354 case OPC_TGEIU: /* r0 >= 0 unsigned */
1358 case OPC_TLT: /* rs < rs */
1359 case OPC_TLTI: /* r0 < 0 */
1360 case OPC_TLTU: /* rs < rs unsigned */
1361 case OPC_TLTIU: /* r0 < 0 unsigned */
1362 case OPC_TNE: /* rs != rs */
1363 case OPC_TNEI: /* r0 != 0 */
1364 /* Never trap: treat as NOP */
1368 generate_exception(ctx, EXCP_RI);
1399 generate_exception(ctx, EXCP_RI);
1403 save_cpu_state(ctx, 1);
1405 ctx->bstate = BS_STOP;
1408 static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
1410 TranslationBlock *tb;
1412 if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
1414 gen_op_goto_tb0(TBPARAM(tb));
1416 gen_op_goto_tb1(TBPARAM(tb));
1417 gen_op_save_pc(dest);
1418 gen_op_set_T0((long)tb + n);
1421 gen_op_save_pc(dest);
1427 /* Branches (before delay slot) */
1428 static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
1429 int rs, int rt, int32_t offset)
1431 target_ulong btarget = -1;
1435 if (ctx->hflags & MIPS_HFLAG_BMASK) {
1436 if (loglevel & CPU_LOG_TB_IN_ASM) {
1438 "undefined branch in delay slot at PC " TARGET_FMT_lx "\n",
1441 MIPS_INVAL("branch/jump in bdelay slot");
1442 generate_exception(ctx, EXCP_RI);
1446 /* Load needed operands */
1452 /* Compare two registers */
1454 GEN_LOAD_REG_TN(T0, rs);
1455 GEN_LOAD_REG_TN(T1, rt);
1458 btarget = ctx->pc + 4 + offset;
1472 /* Compare to zero */
1474 gen_op_load_gpr_T0(rs);
1477 btarget = ctx->pc + 4 + offset;
1481 /* Jump to immediate */
1482 btarget = ((ctx->pc + 4) & (int32_t)0xF0000000) | offset;
1486 /* Jump to register */
1487 if (offset != 0 && offset != 16) {
1488 /* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
1489 others are reserved. */
1490 generate_exception(ctx, EXCP_RI);
1493 GEN_LOAD_REG_TN(T2, rs);
1496 MIPS_INVAL("branch/jump");
1497 generate_exception(ctx, EXCP_RI);
1501 /* No condition to be computed */
1503 case OPC_BEQ: /* rx == rx */
1504 case OPC_BEQL: /* rx == rx likely */
1505 case OPC_BGEZ: /* 0 >= 0 */
1506 case OPC_BGEZL: /* 0 >= 0 likely */
1507 case OPC_BLEZ: /* 0 <= 0 */
1508 case OPC_BLEZL: /* 0 <= 0 likely */
1510 ctx->hflags |= MIPS_HFLAG_B;
1511 MIPS_DEBUG("balways");
1513 case OPC_BGEZAL: /* 0 >= 0 */
1514 case OPC_BGEZALL: /* 0 >= 0 likely */
1515 /* Always take and link */
1517 ctx->hflags |= MIPS_HFLAG_B;
1518 MIPS_DEBUG("balways and link");
1520 case OPC_BNE: /* rx != rx */
1521 case OPC_BGTZ: /* 0 > 0 */
1522 case OPC_BLTZ: /* 0 < 0 */
1523 /* Treated as NOP */
1524 MIPS_DEBUG("bnever (NOP)");
1526 case OPC_BLTZAL: /* 0 < 0 */
1527 gen_op_set_T0(ctx->pc + 8);
1528 gen_op_store_T0_gpr(31);
1530 case OPC_BLTZALL: /* 0 < 0 likely */
1531 gen_op_set_T0(ctx->pc + 8);
1532 gen_op_store_T0_gpr(31);
1533 gen_goto_tb(ctx, 0, ctx->pc + 4);
1535 case OPC_BNEL: /* rx != rx likely */
1536 case OPC_BGTZL: /* 0 > 0 likely */
1537 case OPC_BLTZL: /* 0 < 0 likely */
1538 /* Skip the instruction in the delay slot */
1539 MIPS_DEBUG("bnever and skip");
1540 gen_goto_tb(ctx, 0, ctx->pc + 4);
1543 ctx->hflags |= MIPS_HFLAG_B;
1544 MIPS_DEBUG("j %08x", btarget);
1548 ctx->hflags |= MIPS_HFLAG_B;
1549 MIPS_DEBUG("jal %08x", btarget);
1552 ctx->hflags |= MIPS_HFLAG_BR;
1553 MIPS_DEBUG("jr %s", regnames[rs]);
1557 ctx->hflags |= MIPS_HFLAG_BR;
1558 MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
1561 MIPS_INVAL("branch/jump");
1562 generate_exception(ctx, EXCP_RI);
1569 MIPS_DEBUG("beq %s, %s, %08x",
1570 regnames[rs], regnames[rt], btarget);
1574 MIPS_DEBUG("beql %s, %s, %08x",
1575 regnames[rs], regnames[rt], btarget);
1579 MIPS_DEBUG("bne %s, %s, %08x",
1580 regnames[rs], regnames[rt], btarget);
1584 MIPS_DEBUG("bnel %s, %s, %08x",
1585 regnames[rs], regnames[rt], btarget);
1589 MIPS_DEBUG("bgez %s, %08x", regnames[rs], btarget);
1593 MIPS_DEBUG("bgezl %s, %08x", regnames[rs], btarget);
1597 MIPS_DEBUG("bgezal %s, %08x", regnames[rs], btarget);
1603 MIPS_DEBUG("bgezall %s, %08x", regnames[rs], btarget);
1607 MIPS_DEBUG("bgtz %s, %08x", regnames[rs], btarget);
1611 MIPS_DEBUG("bgtzl %s, %08x", regnames[rs], btarget);
1615 MIPS_DEBUG("blez %s, %08x", regnames[rs], btarget);
1619 MIPS_DEBUG("blezl %s, %08x", regnames[rs], btarget);
1623 MIPS_DEBUG("bltz %s, %08x", regnames[rs], btarget);
1627 MIPS_DEBUG("bltzl %s, %08x", regnames[rs], btarget);
1632 MIPS_DEBUG("bltzal %s, %08x", regnames[rs], btarget);
1634 ctx->hflags |= MIPS_HFLAG_BC;
1639 MIPS_DEBUG("bltzall %s, %08x", regnames[rs], btarget);
1641 ctx->hflags |= MIPS_HFLAG_BL;
1644 MIPS_INVAL("conditional branch/jump");
1645 generate_exception(ctx, EXCP_RI);
1650 MIPS_DEBUG("enter ds: link %d cond %02x target %08x",
1651 blink, ctx->hflags, btarget);
1652 ctx->btarget = btarget;
1654 gen_op_set_T0(ctx->pc + 8);
1655 gen_op_store_T0_gpr(blink);
1659 /* special3 bitfield operations */
1660 static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt,
1661 int rs, int lsb, int msb)
1663 GEN_LOAD_REG_TN(T1, rs);
1668 gen_op_ext(lsb, msb + 1);
1673 gen_op_ext(lsb, msb + 1 + 32);
1678 gen_op_ext(lsb + 32, msb + 1);
1681 gen_op_ext(lsb, msb + 1);
1686 GEN_LOAD_REG_TN(T2, rt);
1687 gen_op_ins(lsb, msb - lsb + 1);
1692 GEN_LOAD_REG_TN(T2, rt);
1693 gen_op_ins(lsb, msb - lsb + 1 + 32);
1698 GEN_LOAD_REG_TN(T2, rt);
1699 gen_op_ins(lsb + 32, msb - lsb + 1);
1704 GEN_LOAD_REG_TN(T2, rt);
1705 gen_op_ins(lsb, msb - lsb + 1);
1709 MIPS_INVAL("bitops");
1710 generate_exception(ctx, EXCP_RI);
1713 GEN_STORE_TN_REG(rt, T0);
1716 /* CP0 (MMU and control) */
1717 static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
1719 const char *rn = "invalid";
1725 gen_op_mfc0_index();
1729 // gen_op_mfc0_mvpcontrol(); /* MT ASE */
1733 // gen_op_mfc0_mvpconf0(); /* MT ASE */
1737 // gen_op_mfc0_mvpconf1(); /* MT ASE */
1747 gen_op_mfc0_random();
1751 // gen_op_mfc0_vpecontrol(); /* MT ASE */
1755 // gen_op_mfc0_vpeconf0(); /* MT ASE */
1759 // gen_op_mfc0_vpeconf1(); /* MT ASE */
1763 // gen_op_mfc0_YQMask(); /* MT ASE */
1767 // gen_op_mfc0_vpeschedule(); /* MT ASE */
1771 // gen_op_mfc0_vpeschefback(); /* MT ASE */
1772 rn = "VPEScheFBack";
1775 // gen_op_mfc0_vpeopt(); /* MT ASE */
1785 gen_op_mfc0_entrylo0();
1789 // gen_op_mfc0_tcstatus(); /* MT ASE */
1793 // gen_op_mfc0_tcbind(); /* MT ASE */
1797 // gen_op_mfc0_tcrestart(); /* MT ASE */
1801 // gen_op_mfc0_tchalt(); /* MT ASE */
1805 // gen_op_mfc0_tccontext(); /* MT ASE */
1809 // gen_op_mfc0_tcschedule(); /* MT ASE */
1813 // gen_op_mfc0_tcschefback(); /* MT ASE */
1823 gen_op_mfc0_entrylo1();
1833 gen_op_mfc0_context();
1837 // gen_op_mfc0_contextconfig(); /* SmartMIPS ASE */
1838 rn = "ContextConfig";
1847 gen_op_mfc0_pagemask();
1851 gen_op_mfc0_pagegrain();
1861 gen_op_mfc0_wired();
1865 // gen_op_mfc0_srsconf0(); /* shadow registers */
1869 // gen_op_mfc0_srsconf1(); /* shadow registers */
1873 // gen_op_mfc0_srsconf2(); /* shadow registers */
1877 // gen_op_mfc0_srsconf3(); /* shadow registers */
1881 // gen_op_mfc0_srsconf4(); /* shadow registers */
1891 gen_op_mfc0_hwrena();
1901 gen_op_mfc0_badvaddr();
1911 gen_op_mfc0_count();
1914 /* 6,7 are implementation dependent */
1922 gen_op_mfc0_entryhi();
1932 gen_op_mfc0_compare();
1935 /* 6,7 are implementation dependent */
1943 gen_op_mfc0_status();
1947 gen_op_mfc0_intctl();
1951 gen_op_mfc0_srsctl();
1955 // gen_op_mfc0_srsmap(); /* shadow registers */
1965 gen_op_mfc0_cause();
1989 gen_op_mfc0_ebase();
1999 gen_op_mfc0_config0();
2003 gen_op_mfc0_config1();
2007 gen_op_mfc0_config2();
2011 gen_op_mfc0_config3();
2014 /* 4,5 are reserved */
2015 /* 6,7 are implementation dependent */
2017 gen_op_mfc0_config6();
2021 gen_op_mfc0_config7();
2031 gen_op_mfc0_lladdr();
2041 gen_op_mfc0_watchlo0();
2045 // gen_op_mfc0_watchlo1();
2049 // gen_op_mfc0_watchlo2();
2053 // gen_op_mfc0_watchlo3();
2057 // gen_op_mfc0_watchlo4();
2061 // gen_op_mfc0_watchlo5();
2065 // gen_op_mfc0_watchlo6();
2069 // gen_op_mfc0_watchlo7();
2079 gen_op_mfc0_watchhi0();
2083 // gen_op_mfc0_watchhi1();
2087 // gen_op_mfc0_watchhi2();
2091 // gen_op_mfc0_watchhi3();
2095 // gen_op_mfc0_watchhi4();
2099 // gen_op_mfc0_watchhi5();
2103 // gen_op_mfc0_watchhi6();
2107 // gen_op_mfc0_watchhi7();
2117 /* 64 bit MMU only */
2118 gen_op_mfc0_xcontext();
2126 /* Officially reserved, but sel 0 is used for R1x000 framemask */
2129 gen_op_mfc0_framemask();
2138 rn = "'Diagnostic"; /* implementation dependent */
2143 gen_op_mfc0_debug(); /* EJTAG support */
2147 // gen_op_mfc0_tracecontrol(); /* PDtrace support */
2148 rn = "TraceControl";
2151 // gen_op_mfc0_tracecontrol2(); /* PDtrace support */
2152 rn = "TraceControl2";
2155 // gen_op_mfc0_usertracedata(); /* PDtrace support */
2156 rn = "UserTraceData";
2159 // gen_op_mfc0_debug(); /* PDtrace support */
2169 gen_op_mfc0_depc(); /* EJTAG support */
2179 gen_op_mfc0_performance0();
2180 rn = "Performance0";
2183 // gen_op_mfc0_performance1();
2184 rn = "Performance1";
2187 // gen_op_mfc0_performance2();
2188 rn = "Performance2";
2191 // gen_op_mfc0_performance3();
2192 rn = "Performance3";
2195 // gen_op_mfc0_performance4();
2196 rn = "Performance4";
2199 // gen_op_mfc0_performance5();
2200 rn = "Performance5";
2203 // gen_op_mfc0_performance6();
2204 rn = "Performance6";
2207 // gen_op_mfc0_performance7();
2208 rn = "Performance7";
2233 gen_op_mfc0_taglo();
2240 gen_op_mfc0_datalo();
2253 gen_op_mfc0_taghi();
2260 gen_op_mfc0_datahi();
2270 gen_op_mfc0_errorepc();
2280 gen_op_mfc0_desave(); /* EJTAG support */
2290 #if defined MIPS_DEBUG_DISAS
2291 if (loglevel & CPU_LOG_TB_IN_ASM) {
2292 fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
2299 #if defined MIPS_DEBUG_DISAS
2300 if (loglevel & CPU_LOG_TB_IN_ASM) {
2301 fprintf(logfile, "mfc0 %s (reg %d sel %d)\n",
2305 generate_exception(ctx, EXCP_RI);
2308 static void gen_mtc0 (DisasContext *ctx, int reg, int sel)
2310 const char *rn = "invalid";
2316 gen_op_mtc0_index();
2320 // gen_op_mtc0_mvpcontrol(); /* MT ASE */
2324 // gen_op_mtc0_mvpconf0(); /* MT ASE */
2328 // gen_op_mtc0_mvpconf1(); /* MT ASE */
2342 // gen_op_mtc0_vpecontrol(); /* MT ASE */
2346 // gen_op_mtc0_vpeconf0(); /* MT ASE */
2350 // gen_op_mtc0_vpeconf1(); /* MT ASE */
2354 // gen_op_mtc0_YQMask(); /* MT ASE */
2358 // gen_op_mtc0_vpeschedule(); /* MT ASE */
2362 // gen_op_mtc0_vpeschefback(); /* MT ASE */
2363 rn = "VPEScheFBack";
2366 // gen_op_mtc0_vpeopt(); /* MT ASE */
2376 gen_op_mtc0_entrylo0();
2380 // gen_op_mtc0_tcstatus(); /* MT ASE */
2384 // gen_op_mtc0_tcbind(); /* MT ASE */
2388 // gen_op_mtc0_tcrestart(); /* MT ASE */
2392 // gen_op_mtc0_tchalt(); /* MT ASE */
2396 // gen_op_mtc0_tccontext(); /* MT ASE */
2400 // gen_op_mtc0_tcschedule(); /* MT ASE */
2404 // gen_op_mtc0_tcschefback(); /* MT ASE */
2414 gen_op_mtc0_entrylo1();
2424 gen_op_mtc0_context();
2428 // gen_op_mtc0_contextconfig(); /* SmartMIPS ASE */
2429 rn = "ContextConfig";
2438 gen_op_mtc0_pagemask();
2442 gen_op_mtc0_pagegrain();
2452 gen_op_mtc0_wired();
2456 // gen_op_mtc0_srsconf0(); /* shadow registers */
2460 // gen_op_mtc0_srsconf1(); /* shadow registers */
2464 // gen_op_mtc0_srsconf2(); /* shadow registers */
2468 // gen_op_mtc0_srsconf3(); /* shadow registers */
2472 // gen_op_mtc0_srsconf4(); /* shadow registers */
2482 gen_op_mtc0_hwrena();
2496 gen_op_mtc0_count();
2499 /* 6,7 are implementation dependent */
2503 /* Stop translation as we may have switched the execution mode */
2504 ctx->bstate = BS_STOP;
2509 gen_op_mtc0_entryhi();
2519 gen_op_mtc0_compare();
2522 /* 6,7 are implementation dependent */
2526 /* Stop translation as we may have switched the execution mode */
2527 ctx->bstate = BS_STOP;
2532 gen_op_mtc0_status();
2536 gen_op_mtc0_intctl();
2540 gen_op_mtc0_srsctl();
2544 // gen_op_mtc0_srsmap(); /* shadow registers */
2550 /* Stop translation as we may have switched the execution mode */
2551 ctx->bstate = BS_STOP;
2556 gen_op_mtc0_cause();
2562 /* Stop translation as we may have switched the execution mode */
2563 ctx->bstate = BS_STOP;
2582 gen_op_mtc0_ebase();
2592 gen_op_mtc0_config0();
2596 /* ignored, read only */
2600 gen_op_mtc0_config2();
2604 /* ignored, read only */
2607 /* 4,5 are reserved */
2608 /* 6,7 are implementation dependent */
2618 rn = "Invalid config selector";
2621 /* Stop translation as we may have switched the execution mode */
2622 ctx->bstate = BS_STOP;
2637 gen_op_mtc0_watchlo0();
2641 // gen_op_mtc0_watchlo1();
2645 // gen_op_mtc0_watchlo2();
2649 // gen_op_mtc0_watchlo3();
2653 // gen_op_mtc0_watchlo4();
2657 // gen_op_mtc0_watchlo5();
2661 // gen_op_mtc0_watchlo6();
2665 // gen_op_mtc0_watchlo7();
2675 gen_op_mtc0_watchhi0();
2679 // gen_op_mtc0_watchhi1();
2683 // gen_op_mtc0_watchhi2();
2687 // gen_op_mtc0_watchhi3();
2691 // gen_op_mtc0_watchhi4();
2695 // gen_op_mtc0_watchhi5();
2699 // gen_op_mtc0_watchhi6();
2703 // gen_op_mtc0_watchhi7();
2713 /* 64 bit MMU only */
2714 gen_op_mtc0_xcontext();
2722 /* Officially reserved, but sel 0 is used for R1x000 framemask */
2725 gen_op_mtc0_framemask();
2734 rn = "Diagnostic"; /* implementation dependent */
2739 gen_op_mtc0_debug(); /* EJTAG support */
2743 // gen_op_mtc0_tracecontrol(); /* PDtrace support */
2744 rn = "TraceControl";
2747 // gen_op_mtc0_tracecontrol2(); /* PDtrace support */
2748 rn = "TraceControl2";
2751 // gen_op_mtc0_usertracedata(); /* PDtrace support */
2752 rn = "UserTraceData";
2755 // gen_op_mtc0_debug(); /* PDtrace support */
2761 /* Stop translation as we may have switched the execution mode */
2762 ctx->bstate = BS_STOP;
2767 gen_op_mtc0_depc(); /* EJTAG support */
2777 gen_op_mtc0_performance0();
2778 rn = "Performance0";
2781 // gen_op_mtc0_performance1();
2782 rn = "Performance1";
2785 // gen_op_mtc0_performance2();
2786 rn = "Performance2";
2789 // gen_op_mtc0_performance3();
2790 rn = "Performance3";
2793 // gen_op_mtc0_performance4();
2794 rn = "Performance4";
2797 // gen_op_mtc0_performance5();
2798 rn = "Performance5";
2801 // gen_op_mtc0_performance6();
2802 rn = "Performance6";
2805 // gen_op_mtc0_performance7();
2806 rn = "Performance7";
2832 gen_op_mtc0_taglo();
2839 gen_op_mtc0_datalo();
2852 gen_op_mtc0_taghi();
2859 gen_op_mtc0_datahi();
2870 gen_op_mtc0_errorepc();
2880 gen_op_mtc0_desave(); /* EJTAG support */
2886 /* Stop translation as we may have switched the execution mode */
2887 ctx->bstate = BS_STOP;
2892 #if defined MIPS_DEBUG_DISAS
2893 if (loglevel & CPU_LOG_TB_IN_ASM) {
2894 fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
2901 #if defined MIPS_DEBUG_DISAS
2902 if (loglevel & CPU_LOG_TB_IN_ASM) {
2903 fprintf(logfile, "mtc0 %s (reg %d sel %d)\n",
2907 generate_exception(ctx, EXCP_RI);
2910 static void gen_dmfc0 (DisasContext *ctx, int reg, int sel)
2912 const char *rn = "invalid";
2918 gen_op_mfc0_index();
2922 // gen_op_dmfc0_mvpcontrol(); /* MT ASE */
2926 // gen_op_dmfc0_mvpconf0(); /* MT ASE */
2930 // gen_op_dmfc0_mvpconf1(); /* MT ASE */
2940 gen_op_mfc0_random();
2944 // gen_op_dmfc0_vpecontrol(); /* MT ASE */
2948 // gen_op_dmfc0_vpeconf0(); /* MT ASE */
2952 // gen_op_dmfc0_vpeconf1(); /* MT ASE */
2956 // gen_op_dmfc0_YQMask(); /* MT ASE */
2960 // gen_op_dmfc0_vpeschedule(); /* MT ASE */
2964 // gen_op_dmfc0_vpeschefback(); /* MT ASE */
2965 rn = "VPEScheFBack";
2968 // gen_op_dmfc0_vpeopt(); /* MT ASE */
2978 gen_op_dmfc0_entrylo0();
2982 // gen_op_dmfc0_tcstatus(); /* MT ASE */
2986 // gen_op_dmfc0_tcbind(); /* MT ASE */
2990 // gen_op_dmfc0_tcrestart(); /* MT ASE */
2994 // gen_op_dmfc0_tchalt(); /* MT ASE */
2998 // gen_op_dmfc0_tccontext(); /* MT ASE */
3002 // gen_op_dmfc0_tcschedule(); /* MT ASE */
3006 // gen_op_dmfc0_tcschefback(); /* MT ASE */
3016 gen_op_dmfc0_entrylo1();
3026 gen_op_dmfc0_context();
3030 // gen_op_dmfc0_contextconfig(); /* SmartMIPS ASE */
3031 rn = "ContextConfig";
3040 gen_op_mfc0_pagemask();
3044 gen_op_mfc0_pagegrain();
3054 gen_op_mfc0_wired();
3058 // gen_op_dmfc0_srsconf0(); /* shadow registers */
3062 // gen_op_dmfc0_srsconf1(); /* shadow registers */
3066 // gen_op_dmfc0_srsconf2(); /* shadow registers */
3070 // gen_op_dmfc0_srsconf3(); /* shadow registers */
3074 // gen_op_dmfc0_srsconf4(); /* shadow registers */
3084 gen_op_mfc0_hwrena();
3094 gen_op_dmfc0_badvaddr();
3104 gen_op_mfc0_count();
3107 /* 6,7 are implementation dependent */
3115 gen_op_dmfc0_entryhi();
3125 gen_op_mfc0_compare();
3128 /* 6,7 are implementation dependent */
3136 gen_op_mfc0_status();
3140 gen_op_mfc0_intctl();
3144 gen_op_mfc0_srsctl();
3148 gen_op_mfc0_srsmap(); /* shadow registers */
3158 gen_op_mfc0_cause();
3182 gen_op_mfc0_ebase();
3192 gen_op_mfc0_config0();
3196 gen_op_mfc0_config1();
3200 gen_op_mfc0_config2();
3204 gen_op_mfc0_config3();
3207 /* 6,7 are implementation dependent */
3215 gen_op_dmfc0_lladdr();
3225 gen_op_dmfc0_watchlo0();
3229 // gen_op_dmfc0_watchlo1();
3233 // gen_op_dmfc0_watchlo2();
3237 // gen_op_dmfc0_watchlo3();
3241 // gen_op_dmfc0_watchlo4();
3245 // gen_op_dmfc0_watchlo5();
3249 // gen_op_dmfc0_watchlo6();
3253 // gen_op_dmfc0_watchlo7();
3263 gen_op_mfc0_watchhi0();
3267 // gen_op_mfc0_watchhi1();
3271 // gen_op_mfc0_watchhi2();
3275 // gen_op_mfc0_watchhi3();
3279 // gen_op_mfc0_watchhi4();
3283 // gen_op_mfc0_watchhi5();
3287 // gen_op_mfc0_watchhi6();
3291 // gen_op_mfc0_watchhi7();
3301 /* 64 bit MMU only */
3302 gen_op_dmfc0_xcontext();
3310 /* Officially reserved, but sel 0 is used for R1x000 framemask */
3313 gen_op_mfc0_framemask();
3322 rn = "'Diagnostic"; /* implementation dependent */
3327 gen_op_mfc0_debug(); /* EJTAG support */
3331 // gen_op_dmfc0_tracecontrol(); /* PDtrace support */
3332 rn = "TraceControl";
3335 // gen_op_dmfc0_tracecontrol2(); /* PDtrace support */
3336 rn = "TraceControl2";
3339 // gen_op_dmfc0_usertracedata(); /* PDtrace support */
3340 rn = "UserTraceData";
3343 // gen_op_dmfc0_debug(); /* PDtrace support */
3353 gen_op_dmfc0_depc(); /* EJTAG support */
3363 gen_op_mfc0_performance0();
3364 rn = "Performance0";
3367 // gen_op_dmfc0_performance1();
3368 rn = "Performance1";
3371 // gen_op_dmfc0_performance2();
3372 rn = "Performance2";
3375 // gen_op_dmfc0_performance3();
3376 rn = "Performance3";
3379 // gen_op_dmfc0_performance4();
3380 rn = "Performance4";
3383 // gen_op_dmfc0_performance5();
3384 rn = "Performance5";
3387 // gen_op_dmfc0_performance6();
3388 rn = "Performance6";
3391 // gen_op_dmfc0_performance7();
3392 rn = "Performance7";
3417 gen_op_mfc0_taglo();
3424 gen_op_mfc0_datalo();
3437 gen_op_mfc0_taghi();
3444 gen_op_mfc0_datahi();
3454 gen_op_dmfc0_errorepc();
3464 gen_op_mfc0_desave(); /* EJTAG support */
3474 #if defined MIPS_DEBUG_DISAS
3475 if (loglevel & CPU_LOG_TB_IN_ASM) {
3476 fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n",
3483 #if defined MIPS_DEBUG_DISAS
3484 if (loglevel & CPU_LOG_TB_IN_ASM) {
3485 fprintf(logfile, "dmfc0 %s (reg %d sel %d)\n",
3489 generate_exception(ctx, EXCP_RI);
3492 static void gen_dmtc0 (DisasContext *ctx, int reg, int sel)
3494 const char *rn = "invalid";
3500 gen_op_mtc0_index();
3504 // gen_op_dmtc0_mvpcontrol(); /* MT ASE */
3508 // gen_op_dmtc0_mvpconf0(); /* MT ASE */
3512 // gen_op_dmtc0_mvpconf1(); /* MT ASE */
3526 // gen_op_dmtc0_vpecontrol(); /* MT ASE */
3530 // gen_op_dmtc0_vpeconf0(); /* MT ASE */
3534 // gen_op_dmtc0_vpeconf1(); /* MT ASE */
3538 // gen_op_dmtc0_YQMask(); /* MT ASE */
3542 // gen_op_dmtc0_vpeschedule(); /* MT ASE */
3546 // gen_op_dmtc0_vpeschefback(); /* MT ASE */
3547 rn = "VPEScheFBack";
3550 // gen_op_dmtc0_vpeopt(); /* MT ASE */
3560 gen_op_dmtc0_entrylo0();
3564 // gen_op_dmtc0_tcstatus(); /* MT ASE */
3568 // gen_op_dmtc0_tcbind(); /* MT ASE */
3572 // gen_op_dmtc0_tcrestart(); /* MT ASE */
3576 // gen_op_dmtc0_tchalt(); /* MT ASE */
3580 // gen_op_dmtc0_tccontext(); /* MT ASE */
3584 // gen_op_dmtc0_tcschedule(); /* MT ASE */
3588 // gen_op_dmtc0_tcschefback(); /* MT ASE */
3598 gen_op_dmtc0_entrylo1();
3608 gen_op_dmtc0_context();
3612 // gen_op_dmtc0_contextconfig(); /* SmartMIPS ASE */
3613 rn = "ContextConfig";
3622 gen_op_mtc0_pagemask();
3626 gen_op_mtc0_pagegrain();
3636 gen_op_mtc0_wired();
3640 // gen_op_dmtc0_srsconf0(); /* shadow registers */
3644 // gen_op_dmtc0_srsconf1(); /* shadow registers */
3648 // gen_op_dmtc0_srsconf2(); /* shadow registers */
3652 // gen_op_dmtc0_srsconf3(); /* shadow registers */
3656 // gen_op_dmtc0_srsconf4(); /* shadow registers */
3666 gen_op_mtc0_hwrena();
3680 gen_op_mtc0_count();
3683 /* 6,7 are implementation dependent */
3687 /* Stop translation as we may have switched the execution mode */
3688 ctx->bstate = BS_STOP;
3693 gen_op_mtc0_entryhi();
3703 gen_op_mtc0_compare();
3706 /* 6,7 are implementation dependent */
3710 /* Stop translation as we may have switched the execution mode */
3711 ctx->bstate = BS_STOP;
3716 gen_op_mtc0_status();
3720 gen_op_mtc0_intctl();
3724 gen_op_mtc0_srsctl();
3728 gen_op_mtc0_srsmap(); /* shadow registers */
3734 /* Stop translation as we may have switched the execution mode */
3735 ctx->bstate = BS_STOP;
3740 gen_op_mtc0_cause();
3746 /* Stop translation as we may have switched the execution mode */
3747 ctx->bstate = BS_STOP;
3766 gen_op_mtc0_ebase();
3776 gen_op_mtc0_config0();
3784 gen_op_mtc0_config2();
3791 /* 6,7 are implementation dependent */
3793 rn = "Invalid config selector";
3796 /* Stop translation as we may have switched the execution mode */
3797 ctx->bstate = BS_STOP;
3812 gen_op_dmtc0_watchlo0();
3816 // gen_op_dmtc0_watchlo1();
3820 // gen_op_dmtc0_watchlo2();
3824 // gen_op_dmtc0_watchlo3();
3828 // gen_op_dmtc0_watchlo4();
3832 // gen_op_dmtc0_watchlo5();
3836 // gen_op_dmtc0_watchlo6();
3840 // gen_op_dmtc0_watchlo7();
3850 gen_op_mtc0_watchhi0();
3854 // gen_op_dmtc0_watchhi1();
3858 // gen_op_dmtc0_watchhi2();
3862 // gen_op_dmtc0_watchhi3();
3866 // gen_op_dmtc0_watchhi4();
3870 // gen_op_dmtc0_watchhi5();
3874 // gen_op_dmtc0_watchhi6();
3878 // gen_op_dmtc0_watchhi7();
3888 /* 64 bit MMU only */
3889 gen_op_dmtc0_xcontext();
3897 /* Officially reserved, but sel 0 is used for R1x000 framemask */
3900 gen_op_mtc0_framemask();
3909 rn = "Diagnostic"; /* implementation dependent */
3914 gen_op_mtc0_debug(); /* EJTAG support */
3918 // gen_op_dmtc0_tracecontrol(); /* PDtrace support */
3919 rn = "TraceControl";
3922 // gen_op_dmtc0_tracecontrol2(); /* PDtrace support */
3923 rn = "TraceControl2";
3926 // gen_op_dmtc0_usertracedata(); /* PDtrace support */
3927 rn = "UserTraceData";
3930 // gen_op_dmtc0_debug(); /* PDtrace support */
3936 /* Stop translation as we may have switched the execution mode */
3937 ctx->bstate = BS_STOP;
3942 gen_op_dmtc0_depc(); /* EJTAG support */
3952 gen_op_mtc0_performance0();
3953 rn = "Performance0";
3956 // gen_op_dmtc0_performance1();
3957 rn = "Performance1";
3960 // gen_op_dmtc0_performance2();
3961 rn = "Performance2";
3964 // gen_op_dmtc0_performance3();
3965 rn = "Performance3";
3968 // gen_op_dmtc0_performance4();
3969 rn = "Performance4";
3972 // gen_op_dmtc0_performance5();
3973 rn = "Performance5";
3976 // gen_op_dmtc0_performance6();
3977 rn = "Performance6";
3980 // gen_op_dmtc0_performance7();
3981 rn = "Performance7";
4007 gen_op_mtc0_taglo();
4014 gen_op_mtc0_datalo();
4027 gen_op_mtc0_taghi();
4034 gen_op_mtc0_datahi();
4045 gen_op_dmtc0_errorepc();
4055 gen_op_mtc0_desave(); /* EJTAG support */
4061 /* Stop translation as we may have switched the execution mode */
4062 ctx->bstate = BS_STOP;
4067 #if defined MIPS_DEBUG_DISAS
4068 if (loglevel & CPU_LOG_TB_IN_ASM) {
4069 fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n",
4076 #if defined MIPS_DEBUG_DISAS
4077 if (loglevel & CPU_LOG_TB_IN_ASM) {
4078 fprintf(logfile, "dmtc0 %s (reg %d sel %d)\n",
4082 generate_exception(ctx, EXCP_RI);
4085 static void gen_cp0 (DisasContext *ctx, uint32_t opc, int rt, int rd)
4087 const char *opn = "unk";
4095 gen_mfc0(ctx, rd, ctx->opcode & 0x7);
4096 gen_op_store_T0_gpr(rt);
4100 /* If we get an exception, we want to restart at next instruction */
4101 /* XXX: breaks for mtc in delay slot */
4103 save_cpu_state(ctx, 1);
4105 GEN_LOAD_REG_TN(T0, rt);
4106 gen_mtc0(ctx, rd, ctx->opcode & 0x7);
4114 gen_dmfc0(ctx, rd, ctx->opcode & 0x7);
4115 gen_op_store_T0_gpr(rt);
4119 /* If we get an exception, we want to restart at next instruction */
4120 /* XXX: breaks for dmtc in delay slot */
4122 save_cpu_state(ctx, 1);
4124 GEN_LOAD_REG_TN(T0, rt);
4125 gen_dmtc0(ctx, rd, ctx->opcode & 0x7);
4128 #if defined(MIPS_USES_R4K_TLB)
4148 save_cpu_state(ctx, 0);
4150 ctx->bstate = BS_EXCP;
4154 if (!(ctx->hflags & MIPS_HFLAG_DM)) {
4155 generate_exception(ctx, EXCP_RI);
4157 save_cpu_state(ctx, 0);
4159 ctx->bstate = BS_EXCP;
4164 /* If we get an exception, we want to restart at next instruction */
4166 save_cpu_state(ctx, 1);
4169 ctx->bstate = BS_EXCP;
4172 if (loglevel & CPU_LOG_TB_IN_ASM) {
4173 fprintf(logfile, "Invalid CP0 opcode: %08x %03x %03x %03x\n",
4174 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4175 ((ctx->opcode >> 16) & 0x1F));
4177 generate_exception(ctx, EXCP_RI);
4180 MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
4183 /* CP1 Branches (before delay slot) */
4184 static void gen_compute_branch1 (DisasContext *ctx, uint32_t op,
4187 target_ulong btarget;
4189 btarget = ctx->pc + 4 + offset;
4194 MIPS_DEBUG("bc1f " TARGET_FMT_lx, btarget);
4198 MIPS_DEBUG("bc1fl " TARGET_FMT_lx, btarget);
4202 MIPS_DEBUG("bc1t " TARGET_FMT_lx, btarget);
4204 ctx->hflags |= MIPS_HFLAG_BC;
4208 MIPS_DEBUG("bc1tl " TARGET_FMT_lx, btarget);
4210 ctx->hflags |= MIPS_HFLAG_BL;
4213 MIPS_INVAL("cp1 branch/jump");
4214 generate_exception (ctx, EXCP_RI);
4219 MIPS_DEBUG("enter ds: cond %02x target " TARGET_FMT_lx,
4220 ctx->hflags, btarget);
4221 ctx->btarget = btarget;
4226 /* Coprocessor 1 (FPU) */
4227 static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
4229 const char *opn = "unk";
4233 GEN_LOAD_FREG_FTN(WT0, fs);
4235 GEN_STORE_TN_REG(rt, T0);
4239 GEN_LOAD_REG_TN(T0, rt);
4241 GEN_STORE_FTN_FREG(fs, WT0);
4245 if (fs != 0 && fs != 31) {
4246 MIPS_INVAL("cfc1 freg");
4247 generate_exception (ctx, EXCP_RI);
4250 GEN_LOAD_IMM_TN(T1, fs);
4252 GEN_STORE_TN_REG(rt, T0);
4256 if (fs != 0 && fs != 31) {
4257 MIPS_INVAL("ctc1 freg");
4258 generate_exception (ctx, EXCP_RI);
4261 GEN_LOAD_IMM_TN(T1, fs);
4262 GEN_LOAD_REG_TN(T0, rt);
4268 /* Not implemented, fallthrough. */
4270 if (loglevel & CPU_LOG_TB_IN_ASM) {
4271 fprintf(logfile, "Invalid CP1 opcode: %08x %03x %03x %03x\n",
4272 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4273 ((ctx->opcode >> 16) & 0x1F));
4275 generate_exception (ctx, EXCP_RI);
4278 MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
4281 /* verify if floating point register is valid; an operation is not defined
4282 * if bit 0 of any register specification is set and the FR bit in the
4283 * Status register equals zero, since the register numbers specify an
4284 * even-odd pair of adjacent coprocessor general registers. When the FR bit
4285 * in the Status register equals one, both even and odd register numbers
4286 * are valid. This limitation exists only for 64 bit wide (d,l) registers.
4288 * Multiple 64 bit wide registers can be checked by calling
4289 * CHECK_FR(ctx, freg1 | freg2 | ... | fregN);
4291 #define CHECK_FR(ctx, freg) do { \
4292 if (!((ctx)->CP0_Status & (1<<CP0St_FR)) && ((freg) & 1)) { \
4293 generate_exception (ctx, EXCP_RI); \
4298 #define FOP(func, fmt) (((fmt) << 21) | (func))
4300 static void gen_farith (DisasContext *ctx, uint32_t op1, int ft, int fs, int fd)
4302 const char *opn = "unk";
4303 const char *condnames[] = {
4322 uint32_t func = ctx->opcode & 0x3f;
4324 switch (ctx->opcode & FOP(0x3f, 0x1f)) {
4326 CHECK_FR(ctx, fs | ft | fd);
4327 GEN_LOAD_FREG_FTN(DT0, fs);
4328 GEN_LOAD_FREG_FTN(DT1, ft);
4329 gen_op_float_add_d();
4330 GEN_STORE_FTN_FREG(fd, DT2);
4335 CHECK_FR(ctx, fs | ft | fd);
4336 GEN_LOAD_FREG_FTN(DT0, fs);
4337 GEN_LOAD_FREG_FTN(DT1, ft);
4338 gen_op_float_sub_d();
4339 GEN_STORE_FTN_FREG(fd, DT2);
4344 CHECK_FR(ctx, fs | ft | fd);
4345 GEN_LOAD_FREG_FTN(DT0, fs);
4346 GEN_LOAD_FREG_FTN(DT1, ft);
4347 gen_op_float_mul_d();
4348 GEN_STORE_FTN_FREG(fd, DT2);
4353 CHECK_FR(ctx, fs | ft | fd);
4354 GEN_LOAD_FREG_FTN(DT0, fs);
4355 GEN_LOAD_FREG_FTN(DT1, ft);
4356 gen_op_float_div_d();
4357 GEN_STORE_FTN_FREG(fd, DT2);
4362 CHECK_FR(ctx, fs | fd);
4363 GEN_LOAD_FREG_FTN(DT0, fs);
4364 gen_op_float_sqrt_d();
4365 GEN_STORE_FTN_FREG(fd, DT2);
4369 CHECK_FR(ctx, fs | fd);
4370 GEN_LOAD_FREG_FTN(DT0, fs);
4371 gen_op_float_abs_d();
4372 GEN_STORE_FTN_FREG(fd, DT2);
4376 CHECK_FR(ctx, fs | fd);
4377 GEN_LOAD_FREG_FTN(DT0, fs);
4378 gen_op_float_mov_d();
4379 GEN_STORE_FTN_FREG(fd, DT2);
4383 CHECK_FR(ctx, fs | fd);
4384 GEN_LOAD_FREG_FTN(DT0, fs);
4385 gen_op_float_chs_d();
4386 GEN_STORE_FTN_FREG(fd, DT2);
4395 GEN_LOAD_FREG_FTN(DT0, fs);
4396 gen_op_float_roundw_d();
4397 GEN_STORE_FTN_FREG(fd, WT2);
4402 GEN_LOAD_FREG_FTN(DT0, fs);
4403 gen_op_float_truncw_d();
4404 GEN_STORE_FTN_FREG(fd, WT2);
4409 GEN_LOAD_FREG_FTN(DT0, fs);
4410 gen_op_float_ceilw_d();
4411 GEN_STORE_FTN_FREG(fd, WT2);
4416 GEN_LOAD_FREG_FTN(DT0, fs);
4417 gen_op_float_floorw_d();
4418 GEN_STORE_FTN_FREG(fd, WT2);
4423 GEN_LOAD_FREG_FTN(WT0, fs);
4424 gen_op_float_cvtd_s();
4425 GEN_STORE_FTN_FREG(fd, DT2);
4430 GEN_LOAD_FREG_FTN(WT0, fs);
4431 gen_op_float_cvtd_w();
4432 GEN_STORE_FTN_FREG(fd, DT2);
4451 CHECK_FR(ctx, fs | ft);
4452 GEN_LOAD_FREG_FTN(DT0, fs);
4453 GEN_LOAD_FREG_FTN(DT1, ft);
4455 opn = condnames[func-48];
4458 GEN_LOAD_FREG_FTN(WT0, fs);
4459 GEN_LOAD_FREG_FTN(WT1, ft);
4460 gen_op_float_add_s();
4461 GEN_STORE_FTN_FREG(fd, WT2);
4466 GEN_LOAD_FREG_FTN(WT0, fs);
4467 GEN_LOAD_FREG_FTN(WT1, ft);
4468 gen_op_float_sub_s();
4469 GEN_STORE_FTN_FREG(fd, WT2);
4474 GEN_LOAD_FREG_FTN(WT0, fs);
4475 GEN_LOAD_FREG_FTN(WT1, ft);
4476 gen_op_float_mul_s();
4477 GEN_STORE_FTN_FREG(fd, WT2);
4482 GEN_LOAD_FREG_FTN(WT0, fs);
4483 GEN_LOAD_FREG_FTN(WT1, ft);
4484 gen_op_float_div_s();
4485 GEN_STORE_FTN_FREG(fd, WT2);
4490 GEN_LOAD_FREG_FTN(WT0, fs);
4491 gen_op_float_sqrt_s();
4492 GEN_STORE_FTN_FREG(fd, WT2);
4496 GEN_LOAD_FREG_FTN(WT0, fs);
4497 gen_op_float_abs_s();
4498 GEN_STORE_FTN_FREG(fd, WT2);
4502 GEN_LOAD_FREG_FTN(WT0, fs);
4503 gen_op_float_mov_s();
4504 GEN_STORE_FTN_FREG(fd, WT2);
4508 GEN_LOAD_FREG_FTN(WT0, fs);
4509 gen_op_float_chs_s();
4510 GEN_STORE_FTN_FREG(fd, WT2);
4514 GEN_LOAD_FREG_FTN(WT0, fs);
4515 gen_op_float_roundw_s();
4516 GEN_STORE_FTN_FREG(fd, WT2);
4520 GEN_LOAD_FREG_FTN(WT0, fs);
4521 gen_op_float_truncw_s();
4522 GEN_STORE_FTN_FREG(fd, WT2);
4527 GEN_LOAD_FREG_FTN(DT0, fs);
4528 gen_op_float_cvts_d();
4529 GEN_STORE_FTN_FREG(fd, WT2);
4533 GEN_LOAD_FREG_FTN(WT0, fs);
4534 gen_op_float_cvts_w();
4535 GEN_STORE_FTN_FREG(fd, WT2);
4539 GEN_LOAD_FREG_FTN(WT0, fs);
4540 gen_op_float_cvtw_s();
4541 GEN_STORE_FTN_FREG(fd, WT2);
4546 GEN_LOAD_FREG_FTN(DT0, fs);
4547 gen_op_float_cvtw_d();
4548 GEN_STORE_FTN_FREG(fd, WT2);
4567 GEN_LOAD_FREG_FTN(WT0, fs);
4568 GEN_LOAD_FREG_FTN(WT1, ft);
4570 opn = condnames[func-48];
4573 if (loglevel & CPU_LOG_TB_IN_ASM) {
4574 fprintf(logfile, "Invalid FP arith function: %08x %03x %03x %03x\n",
4575 ctx->opcode, ctx->opcode >> 26, ctx->opcode & 0x3F,
4576 ((ctx->opcode >> 16) & 0x1F));
4578 generate_exception (ctx, EXCP_RI);
4582 MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
4584 MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
4587 static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf)
4592 ccbit = 1 << (24 + cc);
4596 gen_op_movf(ccbit, rd, rs);
4598 gen_op_movt(ccbit, rd, rs);
4601 /* ISA extensions (ASEs) */
4602 /* MIPS16 extension to MIPS32 */
4603 /* SmartMIPS extension to MIPS32 */
4605 #ifdef TARGET_MIPS64
4606 /* Coprocessor 3 (FPU) */
4608 /* MDMX extension to MIPS64 */
4609 /* MIPS-3D extension to MIPS64 */
4613 static void gen_blikely(DisasContext *ctx)
4616 l1 = gen_new_label();
4618 gen_op_save_state(ctx->hflags & ~MIPS_HFLAG_BMASK);
4619 gen_goto_tb(ctx, 1, ctx->pc + 4);
4623 static void decode_opc (CPUState *env, DisasContext *ctx)
4627 uint32_t op, op1, op2;
4630 /* make sure instructions are on a word boundary */
4631 if (ctx->pc & 0x3) {
4632 generate_exception(ctx, EXCP_AdEL);
4636 if ((ctx->hflags & MIPS_HFLAG_BMASK) == MIPS_HFLAG_BL) {
4637 /* Handle blikely not taken case */
4638 MIPS_DEBUG("blikely condition (" TARGET_FMT_lx ")", ctx->pc + 4);
4641 op = MASK_OP_MAJOR(ctx->opcode);
4642 rs = (ctx->opcode >> 21) & 0x1f;
4643 rt = (ctx->opcode >> 16) & 0x1f;
4644 rd = (ctx->opcode >> 11) & 0x1f;
4645 sa = (ctx->opcode >> 6) & 0x1f;
4646 imm = (int16_t)ctx->opcode;
4649 op1 = MASK_SPECIAL(ctx->opcode);
4651 case OPC_SLL: /* Arithmetic with immediate */
4652 case OPC_SRL ... OPC_SRA:
4653 gen_arith_imm(ctx, op1, rd, rt, sa);
4655 case OPC_SLLV: /* Arithmetic */
4656 case OPC_SRLV ... OPC_SRAV:
4657 case OPC_MOVZ ... OPC_MOVN:
4658 case OPC_ADD ... OPC_NOR:
4659 case OPC_SLT ... OPC_SLTU:
4660 gen_arith(ctx, op1, rd, rs, rt);
4662 case OPC_MULT ... OPC_DIVU:
4663 gen_muldiv(ctx, op1, rs, rt);
4665 case OPC_JR ... OPC_JALR:
4666 gen_compute_branch(ctx, op1, rs, rd, sa);
4668 case OPC_TGE ... OPC_TEQ: /* Traps */
4670 gen_trap(ctx, op1, rs, rt, -1);
4672 case OPC_MFHI: /* Move from HI/LO */
4674 gen_HILO(ctx, op1, rd);
4677 case OPC_MTLO: /* Move to HI/LO */
4678 gen_HILO(ctx, op1, rs);
4680 case OPC_PMON: /* Pmon entry point */
4684 generate_exception(ctx, EXCP_SYSCALL);
4685 ctx->bstate = BS_EXCP;
4688 generate_exception(ctx, EXCP_BREAK);
4690 case OPC_SPIM: /* SPIM ? */
4691 /* Implemented as RI exception for now. */
4692 MIPS_INVAL("spim (unofficial)");
4693 generate_exception(ctx, EXCP_RI);
4696 /* Treat as a noop. */
4700 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4701 save_cpu_state(ctx, 1);
4702 gen_op_cp1_enabled();
4703 gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7,
4704 (ctx->opcode >> 16) & 1);
4706 generate_exception_err(ctx, EXCP_CpU, 1);
4710 #ifdef TARGET_MIPS64
4711 /* MIPS64 specific opcodes */
4713 case OPC_DSRL ... OPC_DSRA:
4715 case OPC_DSRL32 ... OPC_DSRA32:
4716 gen_arith_imm(ctx, op1, rd, rt, sa);
4719 case OPC_DSRLV ... OPC_DSRAV:
4720 case OPC_DADD ... OPC_DSUBU:
4721 gen_arith(ctx, op1, rd, rs, rt);
4723 case OPC_DMULT ... OPC_DDIVU:
4724 gen_muldiv(ctx, op1, rs, rt);
4727 default: /* Invalid */
4728 MIPS_INVAL("special");
4729 generate_exception(ctx, EXCP_RI);
4734 op1 = MASK_SPECIAL2(ctx->opcode);
4736 case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */
4737 case OPC_MSUB ... OPC_MSUBU:
4738 gen_muldiv(ctx, op1, rs, rt);
4741 gen_arith(ctx, op1, rd, rs, rt);
4743 case OPC_CLZ ... OPC_CLO:
4744 gen_cl(ctx, op1, rd, rs);
4747 /* XXX: not clear which exception should be raised
4748 * when in debug mode...
4750 if (!(ctx->hflags & MIPS_HFLAG_DM)) {
4751 generate_exception(ctx, EXCP_DBp);
4753 generate_exception(ctx, EXCP_DBp);
4755 /* Treat as a noop */
4757 #ifdef TARGET_MIPS64
4758 case OPC_DCLZ ... OPC_DCLO:
4759 gen_cl(ctx, op1, rd, rs);
4762 default: /* Invalid */
4763 MIPS_INVAL("special2");
4764 generate_exception(ctx, EXCP_RI);
4769 op1 = MASK_SPECIAL3(ctx->opcode);
4773 gen_bitops(ctx, op1, rt, rs, sa, rd);
4776 op2 = MASK_BSHFL(ctx->opcode);
4779 GEN_LOAD_REG_TN(T1, rt);
4783 GEN_LOAD_REG_TN(T1, rt);
4787 GEN_LOAD_REG_TN(T1, rt);
4790 default: /* Invalid */
4791 MIPS_INVAL("bshfl");
4792 generate_exception(ctx, EXCP_RI);
4795 GEN_STORE_TN_REG(rd, T0);
4800 gen_op_rdhwr_cpunum();
4803 gen_op_rdhwr_synci_step();
4809 gen_op_rdhwr_ccres();
4812 #if defined (CONFIG_USER_ONLY)
4813 gen_op_tls_value ();
4815 generate_exception(ctx, EXCP_RI);
4819 /* Implementation dependent */;
4820 gen_op_rdhwr_unimpl30();
4823 /* Implementation dependent */;
4824 gen_op_rdhwr_unimpl31();
4826 default: /* Invalid */
4827 MIPS_INVAL("rdhwr");
4828 generate_exception(ctx, EXCP_RI);
4831 GEN_STORE_TN_REG(rt, T0);
4833 #ifdef TARGET_MIPS64
4834 case OPC_DEXTM ... OPC_DEXT:
4835 case OPC_DINSM ... OPC_DINS:
4836 gen_bitops(ctx, op1, rt, rs, sa, rd);
4839 op2 = MASK_DBSHFL(ctx->opcode);
4842 GEN_LOAD_REG_TN(T1, rt);
4846 GEN_LOAD_REG_TN(T1, rt);
4849 default: /* Invalid */
4850 MIPS_INVAL("dbshfl");
4851 generate_exception(ctx, EXCP_RI);
4854 GEN_STORE_TN_REG(rd, T0);
4856 default: /* Invalid */
4857 MIPS_INVAL("special3");
4858 generate_exception(ctx, EXCP_RI);
4863 op1 = MASK_REGIMM(ctx->opcode);
4865 case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */
4866 case OPC_BLTZAL ... OPC_BGEZALL:
4867 gen_compute_branch(ctx, op1, rs, -1, imm << 2);
4869 case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */
4871 gen_trap(ctx, op1, rs, -1, imm);
4876 default: /* Invalid */
4877 MIPS_INVAL("REGIMM");
4878 generate_exception(ctx, EXCP_RI);
4883 gen_op_cp0_enabled();
4884 op1 = MASK_CP0(ctx->opcode);
4888 #ifdef TARGET_MIPS64
4892 gen_cp0(ctx, op1, rt, rd);
4894 case OPC_C0_FIRST ... OPC_C0_LAST:
4895 gen_cp0(ctx, MASK_C0(ctx->opcode), rt, rd);
4898 op2 = MASK_MFMC0(ctx->opcode);
4902 /* Stop translation as we may have switched the execution mode */
4903 ctx->bstate = BS_STOP;
4907 /* Stop translation as we may have switched the execution mode */
4908 ctx->bstate = BS_STOP;
4910 default: /* Invalid */
4911 MIPS_INVAL("MFMC0");
4912 generate_exception(ctx, EXCP_RI);
4915 GEN_STORE_TN_REG(rt, T0);
4919 if ((env->CP0_Config0 & (0x7 << CP0C0_AR)) == (1 << CP0C0_AR)) {
4920 /* Shadow registers not implemented. */
4921 GEN_LOAD_REG_TN(T0, rt);
4922 GEN_STORE_TN_REG(rd, T0);
4924 generate_exception(ctx, EXCP_RI);
4927 generate_exception(ctx, EXCP_RI);
4931 case OPC_ADDI ... OPC_LUI: /* Arithmetic with immediate opcode */
4932 gen_arith_imm(ctx, op, rt, rs, imm);
4934 case OPC_J ... OPC_JAL: /* Jump */
4935 offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
4936 gen_compute_branch(ctx, op, rs, rt, offset);
4938 case OPC_BEQ ... OPC_BGTZ: /* Branch */
4939 case OPC_BEQL ... OPC_BGTZL:
4940 gen_compute_branch(ctx, op, rs, rt, imm << 2);
4942 case OPC_LB ... OPC_LWR: /* Load and stores */
4943 case OPC_SB ... OPC_SW:
4947 gen_ldst(ctx, op, rt, rs, imm);
4950 /* Treat as a noop */
4953 /* Treat as a noop */
4956 /* Floating point. */
4961 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4962 save_cpu_state(ctx, 1);
4963 gen_op_cp1_enabled();
4964 gen_flt_ldst(ctx, op, rt, rs, imm);
4966 generate_exception_err(ctx, EXCP_CpU, 1);
4971 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
4972 save_cpu_state(ctx, 1);
4973 gen_op_cp1_enabled();
4974 op1 = MASK_CP1(ctx->opcode);
4980 #ifdef TARGET_MIPS64
4984 gen_cp1(ctx, op1, rt, rd);
4987 gen_compute_branch1(ctx, MASK_CP1_BCOND(ctx->opcode), imm << 2);
4993 gen_farith(ctx, MASK_CP1_FUNC(ctx->opcode), rt, rd, sa);
4996 generate_exception (ctx, EXCP_RI);
5000 generate_exception_err(ctx, EXCP_CpU, 1);
5010 /* COP2: Not implemented. */
5011 generate_exception_err(ctx, EXCP_CpU, 2);
5015 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
5016 save_cpu_state(ctx, 1);
5017 gen_op_cp1_enabled();
5018 op1 = MASK_CP3(ctx->opcode);
5020 /* Not implemented */
5022 generate_exception (ctx, EXCP_RI);
5026 generate_exception_err(ctx, EXCP_CpU, 1);
5030 #ifdef TARGET_MIPS64
5031 /* MIPS64 opcodes */
5033 case OPC_LDL ... OPC_LDR:
5034 case OPC_SDL ... OPC_SDR:
5039 gen_ldst(ctx, op, rt, rs, imm);
5041 case OPC_DADDI ... OPC_DADDIU:
5042 gen_arith_imm(ctx, op, rt, rs, imm);
5045 #ifdef MIPS_HAS_MIPS16
5047 /* MIPS16: Not implemented. */
5049 #ifdef MIPS_HAS_MDMX
5051 /* MDMX: Not implemented. */
5053 default: /* Invalid */
5055 generate_exception(ctx, EXCP_RI);
5058 if (ctx->hflags & MIPS_HFLAG_BMASK) {
5059 int hflags = ctx->hflags & MIPS_HFLAG_BMASK;
5060 /* Branches completion */
5061 ctx->hflags &= ~MIPS_HFLAG_BMASK;
5062 ctx->bstate = BS_BRANCH;
5063 save_cpu_state(ctx, 0);
5064 switch (hflags & MIPS_HFLAG_BMASK) {
5066 /* unconditional branch */
5067 MIPS_DEBUG("unconditional branch");
5068 gen_goto_tb(ctx, 0, ctx->btarget);
5071 /* blikely taken case */
5072 MIPS_DEBUG("blikely branch taken");
5073 gen_goto_tb(ctx, 0, ctx->btarget);
5076 /* Conditional branch */
5077 MIPS_DEBUG("conditional branch");
5080 l1 = gen_new_label();
5082 gen_goto_tb(ctx, 1, ctx->pc + 4);
5084 gen_goto_tb(ctx, 0, ctx->btarget);
5088 /* unconditional branch to register */
5089 MIPS_DEBUG("branch to register");
5093 MIPS_DEBUG("unknown branch");
5100 gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
5103 DisasContext ctx, *ctxp = &ctx;
5104 target_ulong pc_start;
5105 uint16_t *gen_opc_end;
5108 if (search_pc && loglevel)
5109 fprintf (logfile, "search pc %d\n", search_pc);
5112 gen_opc_ptr = gen_opc_buf;
5113 gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
5114 gen_opparam_ptr = gen_opparam_buf;
5119 ctx.bstate = BS_NONE;
5120 /* Restore delay slot state from the tb context. */
5121 ctx.hflags = tb->flags;
5122 ctx.saved_hflags = ctx.hflags;
5123 if (ctx.hflags & MIPS_HFLAG_BR) {
5124 gen_op_restore_breg_target();
5125 } else if (ctx.hflags & MIPS_HFLAG_B) {
5126 ctx.btarget = env->btarget;
5127 } else if (ctx.hflags & MIPS_HFLAG_BMASK) {
5128 /* If we are in the delay slot of a conditional branch,
5129 * restore the branch condition from env->bcond to T2
5131 ctx.btarget = env->btarget;
5132 gen_op_restore_bcond();
5134 #if defined(CONFIG_USER_ONLY)
5137 ctx.mem_idx = !((ctx.hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM);
5139 ctx.CP0_Status = env->CP0_Status;
5141 if (loglevel & CPU_LOG_TB_CPU) {
5142 fprintf(logfile, "------------------------------------------------\n");
5143 /* FIXME: This may print out stale hflags from env... */
5144 cpu_dump_state(env, logfile, fprintf, 0);
5147 #if defined MIPS_DEBUG_DISAS
5148 if (loglevel & CPU_LOG_TB_IN_ASM)
5149 fprintf(logfile, "\ntb %p super %d cond %04x\n",
5150 tb, ctx.mem_idx, ctx.hflags);
5152 while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
5153 if (env->nb_breakpoints > 0) {
5154 for(j = 0; j < env->nb_breakpoints; j++) {
5155 if (env->breakpoints[j] == ctx.pc) {
5156 save_cpu_state(ctxp, 1);
5157 ctx.bstate = BS_BRANCH;
5159 goto done_generating;
5165 j = gen_opc_ptr - gen_opc_buf;
5169 gen_opc_instr_start[lj++] = 0;
5171 gen_opc_pc[lj] = ctx.pc;
5172 gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK;
5173 gen_opc_instr_start[lj] = 1;
5175 ctx.opcode = ldl_code(ctx.pc);
5176 decode_opc(env, &ctx);
5179 if (env->singlestep_enabled)
5182 if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
5185 #if defined (MIPS_SINGLE_STEP)
5189 if (env->singlestep_enabled) {
5190 save_cpu_state(ctxp, ctx.bstate == BS_NONE);
5192 goto done_generating;
5194 else if (ctx.bstate != BS_BRANCH && ctx.bstate != BS_EXCP) {
5195 save_cpu_state(ctxp, 0);
5196 gen_goto_tb(&ctx, 0, ctx.pc);
5199 /* Generate the return instruction */
5202 *gen_opc_ptr = INDEX_op_end;
5204 j = gen_opc_ptr - gen_opc_buf;
5207 gen_opc_instr_start[lj++] = 0;
5210 tb->size = ctx.pc - pc_start;
5213 #if defined MIPS_DEBUG_DISAS
5214 if (loglevel & CPU_LOG_TB_IN_ASM)
5215 fprintf(logfile, "\n");
5217 if (loglevel & CPU_LOG_TB_IN_ASM) {
5218 fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
5219 target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
5220 fprintf(logfile, "\n");
5222 if (loglevel & CPU_LOG_TB_OP) {
5223 fprintf(logfile, "OP:\n");
5224 dump_ops(gen_opc_buf, gen_opparam_buf);
5225 fprintf(logfile, "\n");
5227 if (loglevel & CPU_LOG_TB_CPU) {
5228 fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
5235 int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb)
5237 return gen_intermediate_code_internal(env, tb, 0);
5240 int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb)
5242 return gen_intermediate_code_internal(env, tb, 1);
5245 void fpu_dump_state(CPUState *env, FILE *f,
5246 int (*fpu_fprintf)(FILE *f, const char *fmt, ...),
5251 # define printfpr(fp) do { \
5252 fpu_fprintf(f, "w:%08x d:%08lx%08lx fd:%g fs:%g\n", \
5253 (fp)->w[FP_ENDIAN_IDX], (fp)->w[0], (fp)->w[1], (fp)->fd, (fp)->fs[FP_ENDIAN_IDX]); \
5256 fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d\n",
5257 env->fcr0, env->fcr31,
5258 (env->CP0_Status & (1 << CP0St_FR)) != 0);
5259 fpu_fprintf(f, "FT0: "); printfpr(&env->ft0);
5260 fpu_fprintf(f, "FT1: "); printfpr(&env->ft1);
5261 fpu_fprintf(f, "FT2: "); printfpr(&env->ft2);
5262 for(i = 0; i < 32; i += 2) {
5263 fpu_fprintf(f, "%s: ", fregnames[i]);
5264 printfpr(FPR(env, i));
5270 void dump_fpu (CPUState *env)
5273 fprintf(logfile, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx " LO=0x" TARGET_FMT_lx " ds %04x " TARGET_FMT_lx " %d\n",
5274 env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond);
5275 fpu_dump_state(env, logfile, fprintf, 0);
5279 #if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
5280 /* Debug help: The architecture requires 32bit code to maintain proper
5281 sign-extened values on 64bit machines. */
5283 #define SIGN_EXT_P(val) ((((val) & ~0x7fffffff) == 0) || (((val) & ~0x7fffffff) == ~0x7fffffff))
5285 void cpu_mips_check_sign_extensions (CPUState *env, FILE *f,
5286 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
5291 if (!SIGN_EXT_P(env->PC))
5292 cpu_fprintf(f, "BROKEN: pc=0x" TARGET_FMT_lx "\n", env->PC);
5293 if (!SIGN_EXT_P(env->HI))
5294 cpu_fprintf(f, "BROKEN: HI=0x" TARGET_FMT_lx "\n", env->HI);
5295 if (!SIGN_EXT_P(env->LO))
5296 cpu_fprintf(f, "BROKEN: LO=0x" TARGET_FMT_lx "\n", env->LO);
5297 if (!SIGN_EXT_P(env->btarget))
5298 cpu_fprintf(f, "BROKEN: btarget=0x" TARGET_FMT_lx "\n", env->btarget);
5300 for (i = 0; i < 32; i++) {
5301 if (!SIGN_EXT_P(env->gpr[i]))
5302 cpu_fprintf(f, "BROKEN: %s=0x" TARGET_FMT_lx "\n", regnames[i], env->gpr[i]);
5305 if (!SIGN_EXT_P(env->CP0_EPC))
5306 cpu_fprintf(f, "BROKEN: EPC=0x" TARGET_FMT_lx "\n", env->CP0_EPC);
5307 if (!SIGN_EXT_P(env->CP0_LLAddr))
5308 cpu_fprintf(f, "BROKEN: LLAddr=0x" TARGET_FMT_lx "\n", env->CP0_LLAddr);
5312 void cpu_dump_state (CPUState *env, FILE *f,
5313 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
5319 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",
5320 env->PC, env->HI, env->LO, env->hflags, env->btarget, env->bcond);
5321 for (i = 0; i < 32; i++) {
5323 cpu_fprintf(f, "GPR%02d:", i);
5324 cpu_fprintf(f, " %s " TARGET_FMT_lx, regnames[i], env->gpr[i]);
5326 cpu_fprintf(f, "\n");
5329 c0_status = env->CP0_Status;
5331 cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TARGET_FMT_lx "\n",
5332 c0_status, env->CP0_Cause, env->CP0_EPC);
5333 cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x" TARGET_FMT_lx "\n",
5334 env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr);
5335 if (c0_status & (1 << CP0St_CU1))
5336 fpu_dump_state(env, f, cpu_fprintf, flags);
5337 #if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS)
5338 cpu_mips_check_sign_extensions(env, f, cpu_fprintf, flags);
5342 CPUMIPSState *cpu_mips_init (void)
5346 env = qemu_mallocz(sizeof(CPUMIPSState));
5354 void cpu_reset (CPUMIPSState *env)
5356 memset(env, 0, offsetof(CPUMIPSState, breakpoints));
5361 #if !defined(CONFIG_USER_ONLY)
5362 if (env->hflags & MIPS_HFLAG_BMASK) {
5363 /* If the exception was raised from a delay slot,
5364 * come back to the jump. */
5365 env->CP0_ErrorEPC = env->PC - 4;
5366 env->hflags &= ~MIPS_HFLAG_BMASK;
5368 env->CP0_ErrorEPC = env->PC;
5371 env->PC = (int32_t)0xBFC00000;
5372 #if defined (MIPS_USES_R4K_TLB)
5373 env->CP0_Random = MIPS_TLB_NB - 1;
5374 env->tlb_in_use = MIPS_TLB_NB;
5377 /* SMP not implemented */
5378 env->CP0_EBase = 0x80000000;
5379 env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
5380 env->CP0_WatchLo = 0;
5381 /* Count register increments in debug mode, EJTAG version 1 */
5382 env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
5384 env->exception_index = EXCP_NONE;
5385 #if defined(CONFIG_USER_ONLY)
5386 env->hflags |= MIPS_HFLAG_UM;
5387 env->user_mode_only = 1;
5389 /* XXX some guesswork here, values are CPU specific */
5390 env->SYNCI_Step = 16;
5394 #include "translate_init.c"