1 #if !defined (__MIPS_CPU_H__)
7 #define TARGET_HAS_ICE 1
9 #define ELF_MACHINE EM_MIPS
11 #define CPUArchState struct CPUMIPSState
14 #include "qemu-common.h"
15 #include "mips-defs.h"
16 #include "exec/cpu-defs.h"
17 #include "fpu/softfloat.h"
21 typedef struct r4k_tlb_t r4k_tlb_t;
40 #if !defined(CONFIG_USER_ONLY)
41 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
42 struct CPUMIPSTLBContext {
45 int (*map_address) (struct CPUMIPSState *env, hwaddr *physical, int *prot, target_ulong address, int rw, int access_type);
46 void (*helper_tlbwi)(struct CPUMIPSState *env);
47 void (*helper_tlbwr)(struct CPUMIPSState *env);
48 void (*helper_tlbp)(struct CPUMIPSState *env);
49 void (*helper_tlbr)(struct CPUMIPSState *env);
52 r4k_tlb_t tlb[MIPS_TLB_MAX];
58 typedef union fpr_t fpr_t;
60 float64 fd; /* ieee double precision */
61 float32 fs[2];/* ieee single precision */
62 uint64_t d; /* binary double fixed-point */
63 uint32_t w[2]; /* binary single fixed-point */
65 /* define FP_ENDIAN_IDX to access the same location
66 * in the fpr_t union regardless of the host endianness
68 #if defined(HOST_WORDS_BIGENDIAN)
69 # define FP_ENDIAN_IDX 1
71 # define FP_ENDIAN_IDX 0
74 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
75 struct CPUMIPSFPUContext {
76 /* Floating point registers */
78 float_status fp_status;
79 /* fpu implementation/revision register (fir) */
93 #define SET_FP_COND(num,env) do { ((env).fcr31) |= ((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
94 #define CLEAR_FP_COND(num,env) do { ((env).fcr31) &= ~((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
95 #define GET_FP_COND(env) ((((env).fcr31 >> 24) & 0xfe) | (((env).fcr31 >> 23) & 0x1))
96 #define GET_FP_CAUSE(reg) (((reg) >> 12) & 0x3f)
97 #define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f)
98 #define GET_FP_FLAGS(reg) (((reg) >> 2) & 0x1f)
99 #define SET_FP_CAUSE(reg,v) do { (reg) = ((reg) & ~(0x3f << 12)) | ((v & 0x3f) << 12); } while(0)
100 #define SET_FP_ENABLE(reg,v) do { (reg) = ((reg) & ~(0x1f << 7)) | ((v & 0x1f) << 7); } while(0)
101 #define SET_FP_FLAGS(reg,v) do { (reg) = ((reg) & ~(0x1f << 2)) | ((v & 0x1f) << 2); } while(0)
102 #define UPDATE_FP_FLAGS(reg,v) do { (reg) |= ((v & 0x1f) << 2); } while(0)
104 #define FP_UNDERFLOW 2
105 #define FP_OVERFLOW 4
107 #define FP_INVALID 16
108 #define FP_UNIMPLEMENTED 32
111 #define NB_MMU_MODES 3
113 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
114 struct CPUMIPSMVPContext {
115 int32_t CP0_MVPControl;
116 #define CP0MVPCo_CPA 3
117 #define CP0MVPCo_STLB 2
118 #define CP0MVPCo_VPC 1
119 #define CP0MVPCo_EVP 0
120 int32_t CP0_MVPConf0;
121 #define CP0MVPC0_M 31
122 #define CP0MVPC0_TLBS 29
123 #define CP0MVPC0_GS 28
124 #define CP0MVPC0_PCP 27
125 #define CP0MVPC0_PTLBE 16
126 #define CP0MVPC0_TCA 15
127 #define CP0MVPC0_PVPE 10
128 #define CP0MVPC0_PTC 0
129 int32_t CP0_MVPConf1;
130 #define CP0MVPC1_CIM 31
131 #define CP0MVPC1_CIF 30
132 #define CP0MVPC1_PCX 20
133 #define CP0MVPC1_PCP2 10
134 #define CP0MVPC1_PCP1 0
137 typedef struct mips_def_t mips_def_t;
139 #define MIPS_SHADOW_SET_MAX 16
140 #define MIPS_TC_MAX 5
141 #define MIPS_FPU_MAX 1
142 #define MIPS_DSP_ACC 4
143 #define MIPS_KSCRATCH_NUM 6
145 typedef struct TCState TCState;
147 target_ulong gpr[32];
149 target_ulong HI[MIPS_DSP_ACC];
150 target_ulong LO[MIPS_DSP_ACC];
151 target_ulong ACX[MIPS_DSP_ACC];
152 target_ulong DSPControl;
153 int32_t CP0_TCStatus;
154 #define CP0TCSt_TCU3 31
155 #define CP0TCSt_TCU2 30
156 #define CP0TCSt_TCU1 29
157 #define CP0TCSt_TCU0 28
158 #define CP0TCSt_TMX 27
159 #define CP0TCSt_RNST 23
160 #define CP0TCSt_TDS 21
161 #define CP0TCSt_DT 20
162 #define CP0TCSt_DA 15
164 #define CP0TCSt_TKSU 11
165 #define CP0TCSt_IXMT 10
166 #define CP0TCSt_TASID 0
168 #define CP0TCBd_CurTC 21
169 #define CP0TCBd_TBE 17
170 #define CP0TCBd_CurVPE 0
171 target_ulong CP0_TCHalt;
172 target_ulong CP0_TCContext;
173 target_ulong CP0_TCSchedule;
174 target_ulong CP0_TCScheFBack;
175 int32_t CP0_Debug_tcstatus;
176 target_ulong CP0_UserLocal;
179 typedef struct CPUMIPSState CPUMIPSState;
180 struct CPUMIPSState {
182 CPUMIPSFPUContext active_fpu;
185 uint32_t current_fpu;
189 target_ulong SEGMask;
193 /* CP0_MVP* are per MVP registers. */
195 int32_t CP0_VPEControl;
196 #define CP0VPECo_YSI 21
197 #define CP0VPECo_GSI 20
198 #define CP0VPECo_EXCPT 16
199 #define CP0VPECo_TE 15
200 #define CP0VPECo_TargTC 0
201 int32_t CP0_VPEConf0;
202 #define CP0VPEC0_M 31
203 #define CP0VPEC0_XTC 21
204 #define CP0VPEC0_TCS 19
205 #define CP0VPEC0_SCS 18
206 #define CP0VPEC0_DSC 17
207 #define CP0VPEC0_ICS 16
208 #define CP0VPEC0_MVP 1
209 #define CP0VPEC0_VPA 0
210 int32_t CP0_VPEConf1;
211 #define CP0VPEC1_NCX 20
212 #define CP0VPEC1_NCP2 10
213 #define CP0VPEC1_NCP1 0
214 target_ulong CP0_YQMask;
215 target_ulong CP0_VPESchedule;
216 target_ulong CP0_VPEScheFBack;
218 #define CP0VPEOpt_IWX7 15
219 #define CP0VPEOpt_IWX6 14
220 #define CP0VPEOpt_IWX5 13
221 #define CP0VPEOpt_IWX4 12
222 #define CP0VPEOpt_IWX3 11
223 #define CP0VPEOpt_IWX2 10
224 #define CP0VPEOpt_IWX1 9
225 #define CP0VPEOpt_IWX0 8
226 #define CP0VPEOpt_DWX7 7
227 #define CP0VPEOpt_DWX6 6
228 #define CP0VPEOpt_DWX5 5
229 #define CP0VPEOpt_DWX4 4
230 #define CP0VPEOpt_DWX3 3
231 #define CP0VPEOpt_DWX2 2
232 #define CP0VPEOpt_DWX1 1
233 #define CP0VPEOpt_DWX0 0
234 target_ulong CP0_EntryLo0;
235 target_ulong CP0_EntryLo1;
236 #if defined(TARGET_MIPS64)
237 # define CP0EnLo_RI 63
238 # define CP0EnLo_XI 62
240 # define CP0EnLo_RI 31
241 # define CP0EnLo_XI 30
243 target_ulong CP0_Context;
244 target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
245 int32_t CP0_PageMask;
246 int32_t CP0_PageGrain_rw_bitmask;
247 int32_t CP0_PageGrain;
252 int32_t CP0_SRSConf0_rw_bitmask;
253 int32_t CP0_SRSConf0;
254 #define CP0SRSC0_M 31
255 #define CP0SRSC0_SRS3 20
256 #define CP0SRSC0_SRS2 10
257 #define CP0SRSC0_SRS1 0
258 int32_t CP0_SRSConf1_rw_bitmask;
259 int32_t CP0_SRSConf1;
260 #define CP0SRSC1_M 31
261 #define CP0SRSC1_SRS6 20
262 #define CP0SRSC1_SRS5 10
263 #define CP0SRSC1_SRS4 0
264 int32_t CP0_SRSConf2_rw_bitmask;
265 int32_t CP0_SRSConf2;
266 #define CP0SRSC2_M 31
267 #define CP0SRSC2_SRS9 20
268 #define CP0SRSC2_SRS8 10
269 #define CP0SRSC2_SRS7 0
270 int32_t CP0_SRSConf3_rw_bitmask;
271 int32_t CP0_SRSConf3;
272 #define CP0SRSC3_M 31
273 #define CP0SRSC3_SRS12 20
274 #define CP0SRSC3_SRS11 10
275 #define CP0SRSC3_SRS10 0
276 int32_t CP0_SRSConf4_rw_bitmask;
277 int32_t CP0_SRSConf4;
278 #define CP0SRSC4_SRS15 20
279 #define CP0SRSC4_SRS14 10
280 #define CP0SRSC4_SRS13 0
282 target_ulong CP0_BadVAddr;
284 target_ulong CP0_EntryHi;
309 #define CP0IntCtl_IPTI 29
310 #define CP0IntCtl_IPPC1 26
311 #define CP0IntCtl_VS 5
313 #define CP0SRSCtl_HSS 26
314 #define CP0SRSCtl_EICSS 18
315 #define CP0SRSCtl_ESS 12
316 #define CP0SRSCtl_PSS 6
317 #define CP0SRSCtl_CSS 0
319 #define CP0SRSMap_SSV7 28
320 #define CP0SRSMap_SSV6 24
321 #define CP0SRSMap_SSV5 20
322 #define CP0SRSMap_SSV4 16
323 #define CP0SRSMap_SSV3 12
324 #define CP0SRSMap_SSV2 8
325 #define CP0SRSMap_SSV1 4
326 #define CP0SRSMap_SSV0 0
336 #define CP0Ca_IP_mask 0x0000FF00
338 target_ulong CP0_EPC;
382 #define CP0C3_ISA_ON_EXC 16
383 #define CP0C3_ULRI 13
385 #define CP0C3_DSPP 10
393 uint32_t CP0_Config4;
394 uint32_t CP0_Config4_rw_bitmask;
396 #define CP0C4_KScrExist 16
397 uint32_t CP0_Config5;
398 uint32_t CP0_Config5_rw_bitmask;
403 #define CP0C5_MSAEn 27
405 #define CP0C5_NFExists 0
408 /* XXX: Maybe make LLAddr per-TC? */
411 target_ulong llnewval;
413 target_ulong CP0_LLAddr_rw_bitmask;
414 int CP0_LLAddr_shift;
415 target_ulong CP0_WatchLo[8];
416 int32_t CP0_WatchHi[8];
417 target_ulong CP0_XContext;
418 int32_t CP0_Framemask;
422 #define CP0DB_LSNM 28
423 #define CP0DB_Doze 27
424 #define CP0DB_Halt 26
426 #define CP0DB_IBEP 24
427 #define CP0DB_DBEP 21
428 #define CP0DB_IEXI 20
438 target_ulong CP0_DEPC;
439 int32_t CP0_Performance0;
444 target_ulong CP0_ErrorEPC;
446 /* We waste some space so we can handle shadow registers like TCs. */
447 TCState tcs[MIPS_SHADOW_SET_MAX];
448 CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
451 uint32_t hflags; /* CPU State */
452 /* TMASK defines different execution modes */
453 #define MIPS_HFLAG_TMASK 0x1807FF
454 #define MIPS_HFLAG_MODE 0x00007 /* execution modes */
455 /* The KSU flags must be the lowest bits in hflags. The flag order
456 must be the same as defined for CP0 Status. This allows to use
457 the bits as the value of mmu_idx. */
458 #define MIPS_HFLAG_KSU 0x00003 /* kernel/supervisor/user mode mask */
459 #define MIPS_HFLAG_UM 0x00002 /* user mode flag */
460 #define MIPS_HFLAG_SM 0x00001 /* supervisor mode flag */
461 #define MIPS_HFLAG_KM 0x00000 /* kernel mode flag */
462 #define MIPS_HFLAG_DM 0x00004 /* Debug mode */
463 #define MIPS_HFLAG_64 0x00008 /* 64-bit instructions enabled */
464 #define MIPS_HFLAG_CP0 0x00010 /* CP0 enabled */
465 #define MIPS_HFLAG_FPU 0x00020 /* FPU enabled */
466 #define MIPS_HFLAG_F64 0x00040 /* 64-bit FPU enabled */
467 /* True if the MIPS IV COP1X instructions can be used. This also
468 controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
470 #define MIPS_HFLAG_COP1X 0x00080 /* COP1X instructions enabled */
471 #define MIPS_HFLAG_RE 0x00100 /* Reversed endianness */
472 #define MIPS_HFLAG_AWRAP 0x00200 /* 32-bit compatibility address wrapping */
473 #define MIPS_HFLAG_M16 0x00400 /* MIPS16 mode flag */
474 #define MIPS_HFLAG_M16_SHIFT 10
475 /* If translation is interrupted between the branch instruction and
476 * the delay slot, record what type of branch it is so that we can
477 * resume translation properly. It might be possible to reduce
478 * this from three bits to two. */
479 #define MIPS_HFLAG_BMASK_BASE 0x03800
480 #define MIPS_HFLAG_B 0x00800 /* Unconditional branch */
481 #define MIPS_HFLAG_BC 0x01000 /* Conditional branch */
482 #define MIPS_HFLAG_BL 0x01800 /* Likely branch */
483 #define MIPS_HFLAG_BR 0x02000 /* branch to register (can't link TB) */
484 /* Extra flags about the current pending branch. */
485 #define MIPS_HFLAG_BMASK_EXT 0x7C000
486 #define MIPS_HFLAG_B16 0x04000 /* branch instruction was 16 bits */
487 #define MIPS_HFLAG_BDS16 0x08000 /* branch requires 16-bit delay slot */
488 #define MIPS_HFLAG_BDS32 0x10000 /* branch requires 32-bit delay slot */
489 #define MIPS_HFLAG_BDS_STRICT 0x20000 /* Strict delay slot size */
490 #define MIPS_HFLAG_BX 0x40000 /* branch exchanges execution mode */
491 #define MIPS_HFLAG_BMASK (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
492 /* MIPS DSP resources access. */
493 #define MIPS_HFLAG_DSP 0x080000 /* Enable access to MIPS DSP resources. */
494 #define MIPS_HFLAG_DSPR2 0x100000 /* Enable access to MIPS DSPR2 resources. */
495 /* Extra flag about HWREna register. */
496 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
497 target_ulong btarget; /* Jump / branch target */
498 target_ulong bcond; /* Branch condition (if needed) */
500 int SYNCI_Step; /* Address step size for SYNCI */
501 int CCRes; /* Cycle count resolution/divisor */
502 uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
503 uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
504 int insn_flags; /* Supported instruction set */
508 /* Fields from here on are preserved across CPU reset. */
509 CPUMIPSMVPContext *mvp;
510 #if !defined(CONFIG_USER_ONLY)
511 CPUMIPSTLBContext *tlb;
514 const mips_def_t *cpu_model;
516 QEMUTimer *timer; /* Internal timer */
521 #if !defined(CONFIG_USER_ONLY)
522 int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
523 target_ulong address, int rw, int access_type);
524 int fixed_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
525 target_ulong address, int rw, int access_type);
526 int r4k_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
527 target_ulong address, int rw, int access_type);
528 void r4k_helper_tlbwi(CPUMIPSState *env);
529 void r4k_helper_tlbwr(CPUMIPSState *env);
530 void r4k_helper_tlbp(CPUMIPSState *env);
531 void r4k_helper_tlbr(CPUMIPSState *env);
533 void mips_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
534 bool is_write, bool is_exec, int unused,
538 void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf);
540 #define cpu_exec cpu_mips_exec
541 #define cpu_gen_code cpu_mips_gen_code
542 #define cpu_signal_handler cpu_mips_signal_handler
543 #define cpu_list mips_cpu_list
545 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
546 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
548 #define CPU_SAVE_VERSION 4
550 /* MMU modes definitions. We carefully match the indices with our
552 #define MMU_MODE0_SUFFIX _kernel
553 #define MMU_MODE1_SUFFIX _super
554 #define MMU_MODE2_SUFFIX _user
555 #define MMU_USER_IDX 2
556 static inline int cpu_mmu_index (CPUMIPSState *env)
558 return env->hflags & MIPS_HFLAG_KSU;
561 static inline int cpu_mips_hw_interrupts_pending(CPUMIPSState *env)
567 if (!(env->CP0_Status & (1 << CP0St_IE)) ||
568 (env->CP0_Status & (1 << CP0St_EXL)) ||
569 (env->CP0_Status & (1 << CP0St_ERL)) ||
570 /* Note that the TCStatus IXMT field is initialized to zero,
571 and only MT capable cores can set it to one. So we don't
572 need to check for MT capabilities here. */
573 (env->active_tc.CP0_TCStatus & (1 << CP0TCSt_IXMT)) ||
574 (env->hflags & MIPS_HFLAG_DM)) {
575 /* Interrupts are disabled */
579 pending = env->CP0_Cause & CP0Ca_IP_mask;
580 status = env->CP0_Status & CP0Ca_IP_mask;
582 if (env->CP0_Config3 & (1 << CP0C3_VEIC)) {
583 /* A MIPS configured with a vectorizing external interrupt controller
584 will feed a vector into the Cause pending lines. The core treats
585 the status lines as a vector level, not as indiviual masks. */
586 r = pending > status;
588 /* A MIPS configured with compatibility or VInt (Vectored Interrupts)
589 treats the pending lines as individual interrupt lines, the status
590 lines are individual masks. */
591 r = pending & status;
596 #include "exec/cpu-all.h"
598 /* Memory access type :
599 * may be needed for precise access rights control and precise exceptions.
602 /* 1 bit to define user level / supervisor access */
605 /* 1 bit to indicate direction */
607 /* Type of instruction that generated the access */
608 ACCESS_CODE = 0x10, /* Code fetch access */
609 ACCESS_INT = 0x20, /* Integer load/store access */
610 ACCESS_FLOAT = 0x30, /* floating point load/store access */
624 EXCP_EXT_INTERRUPT, /* 8 */
640 EXCP_DWATCH, /* 24 */
653 EXCP_LAST = EXCP_TLBRI,
655 /* Dummy exception for conditional stores. */
656 #define EXCP_SC 0x100
659 * This is an interrnally generated WAKE request line.
660 * It is driven by the CPU itself. Raised when the MT
661 * block wants to wake a VPE from an inactive state and
662 * cleared when VPE goes from active to inactive.
664 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
666 int cpu_mips_exec(CPUMIPSState *s);
667 void mips_tcg_init(void);
668 MIPSCPU *cpu_mips_init(const char *cpu_model);
669 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
671 static inline CPUMIPSState *cpu_init(const char *cpu_model)
673 MIPSCPU *cpu = cpu_mips_init(cpu_model);
680 /* TODO QOM'ify CPU reset and remove */
681 void cpu_state_reset(CPUMIPSState *s);
684 uint32_t cpu_mips_get_random (CPUMIPSState *env);
685 uint32_t cpu_mips_get_count (CPUMIPSState *env);
686 void cpu_mips_store_count (CPUMIPSState *env, uint32_t value);
687 void cpu_mips_store_compare (CPUMIPSState *env, uint32_t value);
688 void cpu_mips_start_count(CPUMIPSState *env);
689 void cpu_mips_stop_count(CPUMIPSState *env);
692 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
695 int mips_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
697 #if !defined(CONFIG_USER_ONLY)
698 void r4k_invalidate_tlb (CPUMIPSState *env, int idx, int use_extra);
699 hwaddr cpu_mips_translate_address (CPUMIPSState *env, target_ulong address,
702 target_ulong exception_resume_pc (CPUMIPSState *env);
704 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
705 target_ulong *cs_base, int *flags)
707 *pc = env->active_tc.PC;
709 *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
710 MIPS_HFLAG_HWRENA_ULR);
713 static inline int mips_vpe_active(CPUMIPSState *env)
717 /* Check that the VPE is enabled. */
718 if (!(env->mvp->CP0_MVPControl & (1 << CP0MVPCo_EVP))) {
721 /* Check that the VPE is activated. */
722 if (!(env->CP0_VPEConf0 & (1 << CP0VPEC0_VPA))) {
726 /* Now verify that there are active thread contexts in the VPE.
728 This assumes the CPU model will internally reschedule threads
729 if the active one goes to sleep. If there are no threads available
730 the active one will be in a sleeping state, and we can turn off
732 if (!(env->active_tc.CP0_TCStatus & (1 << CP0TCSt_A))) {
733 /* TC is not activated. */
736 if (env->active_tc.CP0_TCHalt & 1) {
737 /* TC is in halt state. */
744 #include "exec/exec-all.h"
746 static inline void compute_hflags(CPUMIPSState *env)
748 env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
749 MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
750 MIPS_HFLAG_AWRAP | MIPS_HFLAG_DSP | MIPS_HFLAG_DSPR2);
751 if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
752 !(env->CP0_Status & (1 << CP0St_ERL)) &&
753 !(env->hflags & MIPS_HFLAG_DM)) {
754 env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
756 #if defined(TARGET_MIPS64)
757 if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
758 (env->CP0_Status & (1 << CP0St_PX)) ||
759 (env->CP0_Status & (1 << CP0St_UX))) {
760 env->hflags |= MIPS_HFLAG_64;
763 if (((env->hflags & MIPS_HFLAG_KSU) == MIPS_HFLAG_UM) &&
764 !(env->CP0_Status & (1 << CP0St_UX))) {
765 env->hflags |= MIPS_HFLAG_AWRAP;
766 } else if (env->insn_flags & ISA_MIPS32R6) {
767 /* Address wrapping for Supervisor and Kernel is specified in R6 */
768 if ((((env->hflags & MIPS_HFLAG_KSU) == MIPS_HFLAG_SM) &&
769 !(env->CP0_Status & (1 << CP0St_SX))) ||
770 (((env->hflags & MIPS_HFLAG_KSU) == MIPS_HFLAG_KM) &&
771 !(env->CP0_Status & (1 << CP0St_KX)))) {
772 env->hflags |= MIPS_HFLAG_AWRAP;
776 if ((env->CP0_Status & (1 << CP0St_CU0)) ||
777 !(env->hflags & MIPS_HFLAG_KSU)) {
778 env->hflags |= MIPS_HFLAG_CP0;
780 if (env->CP0_Status & (1 << CP0St_CU1)) {
781 env->hflags |= MIPS_HFLAG_FPU;
783 if (env->CP0_Status & (1 << CP0St_FR)) {
784 env->hflags |= MIPS_HFLAG_F64;
786 if (env->insn_flags & ASE_DSPR2) {
787 /* Enables access MIPS DSP resources, now our cpu is DSP ASER2,
788 so enable to access DSPR2 resources. */
789 if (env->CP0_Status & (1 << CP0St_MX)) {
790 env->hflags |= MIPS_HFLAG_DSP | MIPS_HFLAG_DSPR2;
793 } else if (env->insn_flags & ASE_DSP) {
794 /* Enables access MIPS DSP resources, now our cpu is DSP ASE,
795 so enable to access DSP resources. */
796 if (env->CP0_Status & (1 << CP0St_MX)) {
797 env->hflags |= MIPS_HFLAG_DSP;
801 if (env->insn_flags & ISA_MIPS32R2) {
802 if (env->active_fpu.fcr0 & (1 << FCR0_F64)) {
803 env->hflags |= MIPS_HFLAG_COP1X;
805 } else if (env->insn_flags & ISA_MIPS32) {
806 if (env->hflags & MIPS_HFLAG_64) {
807 env->hflags |= MIPS_HFLAG_COP1X;
809 } else if (env->insn_flags & ISA_MIPS4) {
810 /* All supported MIPS IV CPUs use the XX (CU3) to enable
811 and disable the MIPS IV extensions to the MIPS III ISA.
812 Some other MIPS IV CPUs ignore the bit, so the check here
813 would be too restrictive for them. */
814 if (env->CP0_Status & (1U << CP0St_CU3)) {
815 env->hflags |= MIPS_HFLAG_COP1X;
820 #endif /* !defined (__MIPS_CPU_H__) */