1 /* 2 * m68k virtual CPU header 3 * 4 * Copyright (c) 2005-2007 CodeSourcery 5 * Written by Paul Brook 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #ifndef M68K_CPU_H 22 #define M68K_CPU_H 23 24 #define TARGET_LONG_BITS 32 25 26 #define CPUArchState struct CPUM68KState 27 28 #include "qemu-common.h" 29 #include "exec/cpu-defs.h" 30 #include "cpu-qom.h" 31 32 #define OS_BYTE 0 33 #define OS_WORD 1 34 #define OS_LONG 2 35 #define OS_SINGLE 3 36 #define OS_DOUBLE 4 37 #define OS_EXTENDED 5 38 #define OS_PACKED 6 39 #define OS_UNSIZED 7 40 41 #define MAX_QREGS 32 42 43 #define EXCP_ACCESS 2 /* Access (MMU) error. */ 44 #define EXCP_ADDRESS 3 /* Address error. */ 45 #define EXCP_ILLEGAL 4 /* Illegal instruction. */ 46 #define EXCP_DIV0 5 /* Divide by zero */ 47 #define EXCP_CHK 6 /* CHK, CHK2 Instructions */ 48 #define EXCP_TRAPCC 7 /* FTRAPcc, TRAPcc, TRAPV Instructions */ 49 #define EXCP_PRIVILEGE 8 /* Privilege violation. */ 50 #define EXCP_TRACE 9 51 #define EXCP_LINEA 10 /* Unimplemented line-A (MAC) opcode. */ 52 #define EXCP_LINEF 11 /* Unimplemented line-F (FPU) opcode. */ 53 #define EXCP_DEBUGNBP 12 /* Non-breakpoint debug interrupt. */ 54 #define EXCP_DEBEGBP 13 /* Breakpoint debug interrupt. */ 55 #define EXCP_FORMAT 14 /* RTE format error. */ 56 #define EXCP_UNINITIALIZED 15 57 #define EXCP_SPURIOUS 24 /* Spurious interrupt */ 58 #define EXCP_INT_LEVEL_1 25 /* Level 1 Interrupt autovector */ 59 #define EXCP_INT_LEVEL_7 31 /* Level 7 Interrupt autovector */ 60 #define EXCP_TRAP0 32 /* User trap #0. */ 61 #define EXCP_TRAP15 47 /* User trap #15. */ 62 #define EXCP_FP_BSUN 48 /* Branch Set on Unordered */ 63 #define EXCP_FP_INEX 49 /* Inexact result */ 64 #define EXCP_FP_DZ 50 /* Divide by Zero */ 65 #define EXCP_FP_UNFL 51 /* Underflow */ 66 #define EXCP_FP_OPERR 52 /* Operand Error */ 67 #define EXCP_FP_OVFL 53 /* Overflow */ 68 #define EXCP_FP_SNAN 54 /* Signaling Not-A-Number */ 69 #define EXCP_FP_UNIMP 55 /* Unimplemented Data type */ 70 #define EXCP_MMU_CONF 56 /* MMU Configuration Error */ 71 #define EXCP_MMU_ILLEGAL 57 /* MMU Illegal Operation Error */ 72 #define EXCP_MMU_ACCESS 58 /* MMU Access Level Violation Error */ 73 74 #define EXCP_RTE 0x100 75 #define EXCP_HALT_INSN 0x101 76 77 #define M68K_DTTR0 0 78 #define M68K_DTTR1 1 79 #define M68K_ITTR0 2 80 #define M68K_ITTR1 3 81 82 #define M68K_MAX_TTR 2 83 #define TTR(type, index) ttr[((type & ACCESS_CODE) == ACCESS_CODE) * 2 + index] 84 85 #define NB_MMU_MODES 2 86 #define TARGET_INSN_START_EXTRA_WORDS 1 87 88 typedef CPU_LDoubleU FPReg; 89 90 typedef struct CPUM68KState { 91 uint32_t dregs[8]; 92 uint32_t aregs[8]; 93 uint32_t pc; 94 uint32_t sr; 95 96 /* SSP and USP. The current_sp is stored in aregs[7], the other here. */ 97 int current_sp; 98 uint32_t sp[3]; 99 100 /* Condition flags. */ 101 uint32_t cc_op; 102 uint32_t cc_x; /* always 0/1 */ 103 uint32_t cc_n; /* in bit 31 (i.e. negative) */ 104 uint32_t cc_v; /* in bit 31, unused, or computed from cc_n and cc_v */ 105 uint32_t cc_c; /* either 0/1, unused, or computed from cc_n and cc_v */ 106 uint32_t cc_z; /* == 0 or unused */ 107 108 FPReg fregs[8]; 109 FPReg fp_result; 110 uint32_t fpcr; 111 uint32_t fpsr; 112 float_status fp_status; 113 114 uint64_t mactmp; 115 /* EMAC Hardware deals with 48-bit values composed of one 32-bit and 116 two 8-bit parts. We store a single 64-bit value and 117 rearrange/extend this when changing modes. */ 118 uint64_t macc[4]; 119 uint32_t macsr; 120 uint32_t mac_mask; 121 122 /* MMU status. */ 123 struct { 124 uint32_t ar; 125 uint32_t ssw; 126 /* 68040 */ 127 uint16_t tcr; 128 uint32_t urp; 129 uint32_t srp; 130 bool fault; 131 uint32_t ttr[4]; 132 uint32_t mmusr; 133 } mmu; 134 135 /* Control registers. */ 136 uint32_t vbr; 137 uint32_t mbar; 138 uint32_t rambar0; 139 uint32_t cacr; 140 uint32_t sfc; 141 uint32_t dfc; 142 143 int pending_vector; 144 int pending_level; 145 146 uint32_t qregs[MAX_QREGS]; 147 148 /* Fields up to this point are cleared by a CPU reset */ 149 struct {} end_reset_fields; 150 151 CPU_COMMON 152 153 /* Fields from here on are preserved across CPU reset. */ 154 uint32_t features; 155 } CPUM68KState; 156 157 /** 158 * M68kCPU: 159 * @env: #CPUM68KState 160 * 161 * A Motorola 68k CPU. 162 */ 163 struct M68kCPU { 164 /*< private >*/ 165 CPUState parent_obj; 166 /*< public >*/ 167 168 CPUM68KState env; 169 }; 170 171 static inline M68kCPU *m68k_env_get_cpu(CPUM68KState *env) 172 { 173 return container_of(env, M68kCPU, env); 174 } 175 176 #define ENV_GET_CPU(e) CPU(m68k_env_get_cpu(e)) 177 178 #define ENV_OFFSET offsetof(M68kCPU, env) 179 180 void m68k_cpu_do_interrupt(CPUState *cpu); 181 bool m68k_cpu_exec_interrupt(CPUState *cpu, int int_req); 182 void m68k_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, 183 int flags); 184 hwaddr m68k_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); 185 int m68k_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); 186 int m68k_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 187 188 void m68k_tcg_init(void); 189 void m68k_cpu_init_gdb(M68kCPU *cpu); 190 /* you can call this signal handler from your SIGBUS and SIGSEGV 191 signal handlers to inform the virtual CPU of exceptions. non zero 192 is returned if the signal was handled by the virtual CPU. */ 193 int cpu_m68k_signal_handler(int host_signum, void *pinfo, 194 void *puc); 195 uint32_t cpu_m68k_get_ccr(CPUM68KState *env); 196 void cpu_m68k_set_ccr(CPUM68KState *env, uint32_t); 197 void cpu_m68k_set_sr(CPUM68KState *env, uint32_t); 198 void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val); 199 200 201 /* Instead of computing the condition codes after each m68k instruction, 202 * QEMU just stores one operand (called CC_SRC), the result 203 * (called CC_DEST) and the type of operation (called CC_OP). When the 204 * condition codes are needed, the condition codes can be calculated 205 * using this information. Condition codes are not generated if they 206 * are only needed for conditional branches. 207 */ 208 typedef enum { 209 /* Translator only -- use env->cc_op. */ 210 CC_OP_DYNAMIC, 211 212 /* Each flag bit computed into cc_[xcnvz]. */ 213 CC_OP_FLAGS, 214 215 /* X in cc_x, C = X, N in cc_n, Z in cc_n, V via cc_n/cc_v. */ 216 CC_OP_ADDB, CC_OP_ADDW, CC_OP_ADDL, 217 CC_OP_SUBB, CC_OP_SUBW, CC_OP_SUBL, 218 219 /* X in cc_x, {N,Z,C,V} via cc_n/cc_v. */ 220 CC_OP_CMPB, CC_OP_CMPW, CC_OP_CMPL, 221 222 /* X in cc_x, C = 0, V = 0, N in cc_n, Z in cc_n. */ 223 CC_OP_LOGIC, 224 225 CC_OP_NB 226 } CCOp; 227 228 #define CCF_C 0x01 229 #define CCF_V 0x02 230 #define CCF_Z 0x04 231 #define CCF_N 0x08 232 #define CCF_X 0x10 233 234 #define SR_I_SHIFT 8 235 #define SR_I 0x0700 236 #define SR_M 0x1000 237 #define SR_S 0x2000 238 #define SR_T_SHIFT 14 239 #define SR_T 0xc000 240 241 #define M68K_SSP 0 242 #define M68K_USP 1 243 #define M68K_ISP 2 244 245 /* bits for 68040 special status word */ 246 #define M68K_CP_040 0x8000 247 #define M68K_CU_040 0x4000 248 #define M68K_CT_040 0x2000 249 #define M68K_CM_040 0x1000 250 #define M68K_MA_040 0x0800 251 #define M68K_ATC_040 0x0400 252 #define M68K_LK_040 0x0200 253 #define M68K_RW_040 0x0100 254 #define M68K_SIZ_040 0x0060 255 #define M68K_TT_040 0x0018 256 #define M68K_TM_040 0x0007 257 258 #define M68K_TM_040_DATA 0x0001 259 #define M68K_TM_040_CODE 0x0002 260 #define M68K_TM_040_SUPER 0x0004 261 262 /* bits for 68040 write back status word */ 263 #define M68K_WBV_040 0x80 264 #define M68K_WBSIZ_040 0x60 265 #define M68K_WBBYT_040 0x20 266 #define M68K_WBWRD_040 0x40 267 #define M68K_WBLNG_040 0x00 268 #define M68K_WBTT_040 0x18 269 #define M68K_WBTM_040 0x07 270 271 /* bus access size codes */ 272 #define M68K_BA_SIZE_MASK 0x60 273 #define M68K_BA_SIZE_BYTE 0x20 274 #define M68K_BA_SIZE_WORD 0x40 275 #define M68K_BA_SIZE_LONG 0x00 276 #define M68K_BA_SIZE_LINE 0x60 277 278 /* bus access transfer type codes */ 279 #define M68K_BA_TT_MOVE16 0x08 280 281 /* bits for 68040 MMU status register (mmusr) */ 282 #define M68K_MMU_B_040 0x0800 283 #define M68K_MMU_G_040 0x0400 284 #define M68K_MMU_U1_040 0x0200 285 #define M68K_MMU_U0_040 0x0100 286 #define M68K_MMU_S_040 0x0080 287 #define M68K_MMU_CM_040 0x0060 288 #define M68K_MMU_M_040 0x0010 289 #define M68K_MMU_WP_040 0x0004 290 #define M68K_MMU_T_040 0x0002 291 #define M68K_MMU_R_040 0x0001 292 293 #define M68K_MMU_SR_MASK_040 (M68K_MMU_G_040 | M68K_MMU_U1_040 | \ 294 M68K_MMU_U0_040 | M68K_MMU_S_040 | \ 295 M68K_MMU_CM_040 | M68K_MMU_M_040 | \ 296 M68K_MMU_WP_040) 297 298 /* bits for 68040 MMU Translation Control Register */ 299 #define M68K_TCR_ENABLED 0x8000 300 #define M68K_TCR_PAGE_8K 0x4000 301 302 /* bits for 68040 MMU Table Descriptor / Page Descriptor / TTR */ 303 #define M68K_DESC_WRITEPROT 0x00000004 304 #define M68K_DESC_USED 0x00000008 305 #define M68K_DESC_MODIFIED 0x00000010 306 #define M68K_DESC_CACHEMODE 0x00000060 307 #define M68K_DESC_CM_WRTHRU 0x00000000 308 #define M68K_DESC_CM_COPYBK 0x00000020 309 #define M68K_DESC_CM_SERIAL 0x00000040 310 #define M68K_DESC_CM_NCACHE 0x00000060 311 #define M68K_DESC_SUPERONLY 0x00000080 312 #define M68K_DESC_USERATTR 0x00000300 313 #define M68K_DESC_USERATTR_SHIFT 8 314 #define M68K_DESC_GLOBAL 0x00000400 315 #define M68K_DESC_URESERVED 0x00000800 316 317 #define M68K_ROOT_POINTER_ENTRIES 128 318 #define M68K_4K_PAGE_MASK (~0xff) 319 #define M68K_POINTER_BASE(entry) (entry & ~0x1ff) 320 #define M68K_ROOT_INDEX(addr) ((address >> 23) & 0x1fc) 321 #define M68K_POINTER_INDEX(addr) ((address >> 16) & 0x1fc) 322 #define M68K_4K_PAGE_BASE(entry) (next & M68K_4K_PAGE_MASK) 323 #define M68K_4K_PAGE_INDEX(addr) ((address >> 10) & 0xfc) 324 #define M68K_8K_PAGE_MASK (~0x7f) 325 #define M68K_8K_PAGE_BASE(entry) (next & M68K_8K_PAGE_MASK) 326 #define M68K_8K_PAGE_INDEX(addr) ((address >> 11) & 0x7c) 327 #define M68K_UDT_VALID(entry) (entry & 2) 328 #define M68K_PDT_VALID(entry) (entry & 3) 329 #define M68K_PDT_INDIRECT(entry) ((entry & 3) == 2) 330 #define M68K_INDIRECT_POINTER(addr) (addr & ~3) 331 #define M68K_TTS_POINTER_SHIFT 18 332 #define M68K_TTS_ROOT_SHIFT 25 333 334 /* bits for 68040 MMU Transparent Translation Registers */ 335 #define M68K_TTR_ADDR_BASE 0xff000000 336 #define M68K_TTR_ADDR_MASK 0x00ff0000 337 #define M68K_TTR_ADDR_MASK_SHIFT 8 338 #define M68K_TTR_ENABLED 0x00008000 339 #define M68K_TTR_SFIELD 0x00006000 340 #define M68K_TTR_SFIELD_USER 0x0000 341 #define M68K_TTR_SFIELD_SUPER 0x2000 342 343 /* m68k Control Registers */ 344 345 /* ColdFire */ 346 /* Memory Management Control Registers */ 347 #define M68K_CR_ASID 0x003 348 #define M68K_CR_ACR0 0x004 349 #define M68K_CR_ACR1 0x005 350 #define M68K_CR_ACR2 0x006 351 #define M68K_CR_ACR3 0x007 352 #define M68K_CR_MMUBAR 0x008 353 354 /* Processor Miscellaneous Registers */ 355 #define M68K_CR_PC 0x80F 356 357 /* Local Memory and Module Control Registers */ 358 #define M68K_CR_ROMBAR0 0xC00 359 #define M68K_CR_ROMBAR1 0xC01 360 #define M68K_CR_RAMBAR0 0xC04 361 #define M68K_CR_RAMBAR1 0xC05 362 #define M68K_CR_MPCR 0xC0C 363 #define M68K_CR_EDRAMBAR 0xC0D 364 #define M68K_CR_SECMBAR 0xC0E 365 #define M68K_CR_MBAR 0xC0F 366 367 /* Local Memory Address Permutation Control Registers */ 368 #define M68K_CR_PCR1U0 0xD02 369 #define M68K_CR_PCR1L0 0xD03 370 #define M68K_CR_PCR2U0 0xD04 371 #define M68K_CR_PCR2L0 0xD05 372 #define M68K_CR_PCR3U0 0xD06 373 #define M68K_CR_PCR3L0 0xD07 374 #define M68K_CR_PCR1U1 0xD0A 375 #define M68K_CR_PCR1L1 0xD0B 376 #define M68K_CR_PCR2U1 0xD0C 377 #define M68K_CR_PCR2L1 0xD0D 378 #define M68K_CR_PCR3U1 0xD0E 379 #define M68K_CR_PCR3L1 0xD0F 380 381 /* MC680x0 */ 382 /* MC680[1234]0/CPU32 */ 383 #define M68K_CR_SFC 0x000 384 #define M68K_CR_DFC 0x001 385 #define M68K_CR_USP 0x800 386 #define M68K_CR_VBR 0x801 /* + Coldfire */ 387 388 /* MC680[234]0 */ 389 #define M68K_CR_CACR 0x002 /* + Coldfire */ 390 #define M68K_CR_CAAR 0x802 /* MC68020 and MC68030 only */ 391 #define M68K_CR_MSP 0x803 392 #define M68K_CR_ISP 0x804 393 394 /* MC68040/MC68LC040 */ 395 #define M68K_CR_TC 0x003 396 #define M68K_CR_ITT0 0x004 397 #define M68K_CR_ITT1 0x005 398 #define M68K_CR_DTT0 0x006 399 #define M68K_CR_DTT1 0x007 400 #define M68K_CR_MMUSR 0x805 401 #define M68K_CR_URP 0x806 402 #define M68K_CR_SRP 0x807 403 404 /* MC68EC040 */ 405 #define M68K_CR_IACR0 0x004 406 #define M68K_CR_IACR1 0x005 407 #define M68K_CR_DACR0 0x006 408 #define M68K_CR_DACR1 0x007 409 410 #define M68K_FPIAR_SHIFT 0 411 #define M68K_FPIAR (1 << M68K_FPIAR_SHIFT) 412 #define M68K_FPSR_SHIFT 1 413 #define M68K_FPSR (1 << M68K_FPSR_SHIFT) 414 #define M68K_FPCR_SHIFT 2 415 #define M68K_FPCR (1 << M68K_FPCR_SHIFT) 416 417 /* Floating-Point Status Register */ 418 419 /* Condition Code */ 420 #define FPSR_CC_MASK 0x0f000000 421 #define FPSR_CC_A 0x01000000 /* Not-A-Number */ 422 #define FPSR_CC_I 0x02000000 /* Infinity */ 423 #define FPSR_CC_Z 0x04000000 /* Zero */ 424 #define FPSR_CC_N 0x08000000 /* Negative */ 425 426 /* Quotient */ 427 428 #define FPSR_QT_MASK 0x00ff0000 429 #define FPSR_QT_SHIFT 16 430 431 /* Floating-Point Control Register */ 432 /* Rounding mode */ 433 #define FPCR_RND_MASK 0x0030 434 #define FPCR_RND_N 0x0000 435 #define FPCR_RND_Z 0x0010 436 #define FPCR_RND_M 0x0020 437 #define FPCR_RND_P 0x0030 438 439 /* Rounding precision */ 440 #define FPCR_PREC_MASK 0x00c0 441 #define FPCR_PREC_X 0x0000 442 #define FPCR_PREC_S 0x0040 443 #define FPCR_PREC_D 0x0080 444 #define FPCR_PREC_U 0x00c0 445 446 #define FPCR_EXCP_MASK 0xff00 447 448 /* CACR fields are implementation defined, but some bits are common. */ 449 #define M68K_CACR_EUSP 0x10 450 451 #define MACSR_PAV0 0x100 452 #define MACSR_OMC 0x080 453 #define MACSR_SU 0x040 454 #define MACSR_FI 0x020 455 #define MACSR_RT 0x010 456 #define MACSR_N 0x008 457 #define MACSR_Z 0x004 458 #define MACSR_V 0x002 459 #define MACSR_EV 0x001 460 461 void m68k_set_irq_level(M68kCPU *cpu, int level, uint8_t vector); 462 void m68k_switch_sp(CPUM68KState *env); 463 464 void do_m68k_semihosting(CPUM68KState *env, int nr); 465 466 /* There are 4 ColdFire core ISA revisions: A, A+, B and C. 467 Each feature covers the subset of instructions common to the 468 ISA revisions mentioned. */ 469 470 enum m68k_features { 471 M68K_FEATURE_M68000, 472 M68K_FEATURE_CF_ISA_A, 473 M68K_FEATURE_CF_ISA_B, /* (ISA B or C). */ 474 M68K_FEATURE_CF_ISA_APLUSC, /* BIT/BITREV, FF1, STRLDSR (ISA A+ or C). */ 475 M68K_FEATURE_BRAL, /* Long unconditional branch. (ISA A+ or B). */ 476 M68K_FEATURE_CF_FPU, 477 M68K_FEATURE_CF_MAC, 478 M68K_FEATURE_CF_EMAC, 479 M68K_FEATURE_CF_EMAC_B, /* Revision B EMAC (dual accumulate). */ 480 M68K_FEATURE_USP, /* User Stack Pointer. (ISA A+, B or C). */ 481 M68K_FEATURE_EXT_FULL, /* 68020+ full extension word. */ 482 M68K_FEATURE_WORD_INDEX, /* word sized address index registers. */ 483 M68K_FEATURE_SCALED_INDEX, /* scaled address index registers. */ 484 M68K_FEATURE_LONG_MULDIV, /* 32 bit multiply/divide. */ 485 M68K_FEATURE_QUAD_MULDIV, /* 64 bit multiply/divide. */ 486 M68K_FEATURE_BCCL, /* Long conditional branches. */ 487 M68K_FEATURE_BITFIELD, /* Bit field insns. */ 488 M68K_FEATURE_FPU, 489 M68K_FEATURE_CAS, 490 M68K_FEATURE_BKPT, 491 M68K_FEATURE_RTD, 492 M68K_FEATURE_CHK2, 493 M68K_FEATURE_M68040, /* instructions specific to MC68040 */ 494 M68K_FEATURE_MOVEP, 495 }; 496 497 static inline int m68k_feature(CPUM68KState *env, int feature) 498 { 499 return (env->features & (1u << feature)) != 0; 500 } 501 502 void m68k_cpu_list(FILE *f, fprintf_function cpu_fprintf); 503 504 void register_m68k_insns (CPUM68KState *env); 505 506 /* Coldfire Linux uses 8k pages 507 * and m68k linux uses 4k pages 508 * use the smallest one 509 */ 510 #define TARGET_PAGE_BITS 12 511 512 enum { 513 /* 1 bit to define user level / supervisor access */ 514 ACCESS_SUPER = 0x01, 515 /* 1 bit to indicate direction */ 516 ACCESS_STORE = 0x02, 517 /* 1 bit to indicate debug access */ 518 ACCESS_DEBUG = 0x04, 519 /* PTEST instruction */ 520 ACCESS_PTEST = 0x08, 521 /* Type of instruction that generated the access */ 522 ACCESS_CODE = 0x10, /* Code fetch access */ 523 ACCESS_DATA = 0x20, /* Data load/store access */ 524 }; 525 526 #define TARGET_PHYS_ADDR_SPACE_BITS 32 527 #define TARGET_VIRT_ADDR_SPACE_BITS 32 528 529 #define M68K_CPU_TYPE_SUFFIX "-" TYPE_M68K_CPU 530 #define M68K_CPU_TYPE_NAME(model) model M68K_CPU_TYPE_SUFFIX 531 #define CPU_RESOLVING_TYPE TYPE_M68K_CPU 532 533 #define cpu_signal_handler cpu_m68k_signal_handler 534 #define cpu_list m68k_cpu_list 535 536 /* MMU modes definitions */ 537 #define MMU_MODE0_SUFFIX _kernel 538 #define MMU_MODE1_SUFFIX _user 539 #define MMU_KERNEL_IDX 0 540 #define MMU_USER_IDX 1 541 static inline int cpu_mmu_index (CPUM68KState *env, bool ifetch) 542 { 543 return (env->sr & SR_S) == 0 ? 1 : 0; 544 } 545 546 int m68k_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int size, int rw, 547 int mmu_idx); 548 void m68k_cpu_unassigned_access(CPUState *cs, hwaddr addr, 549 bool is_write, bool is_exec, int is_asi, 550 unsigned size); 551 552 #include "exec/cpu-all.h" 553 554 /* TB flags */ 555 #define TB_FLAGS_MACSR 0x0f 556 #define TB_FLAGS_MSR_S_BIT 13 557 #define TB_FLAGS_MSR_S (1 << TB_FLAGS_MSR_S_BIT) 558 #define TB_FLAGS_SFC_S_BIT 14 559 #define TB_FLAGS_SFC_S (1 << TB_FLAGS_SFC_S_BIT) 560 #define TB_FLAGS_DFC_S_BIT 15 561 #define TB_FLAGS_DFC_S (1 << TB_FLAGS_DFC_S_BIT) 562 563 static inline void cpu_get_tb_cpu_state(CPUM68KState *env, target_ulong *pc, 564 target_ulong *cs_base, uint32_t *flags) 565 { 566 *pc = env->pc; 567 *cs_base = 0; 568 *flags = (env->macsr >> 4) & TB_FLAGS_MACSR; 569 if (env->sr & SR_S) { 570 *flags |= TB_FLAGS_MSR_S; 571 *flags |= (env->sfc << (TB_FLAGS_SFC_S_BIT - 2)) & TB_FLAGS_SFC_S; 572 *flags |= (env->dfc << (TB_FLAGS_DFC_S_BIT - 2)) & TB_FLAGS_DFC_S; 573 } 574 } 575 576 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUM68KState *env); 577 #endif 578