xref: /openbmc/qemu/target/i386/cpu-dump.c (revision ed75658a)
1 /*
2  *  i386 CPU dump to FILE
3  *
4  *  Copyright (c) 2003 Fabrice Bellard
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "cpu.h"
22 #include "qemu/qemu-print.h"
23 #ifndef CONFIG_USER_ONLY
24 #include "hw/i386/apic_internal.h"
25 #endif
26 
27 /***********************************************************/
28 /* x86 debug */
29 
30 static const char *cc_op_str[CC_OP_NB] = {
31     "DYNAMIC",
32     "EFLAGS",
33 
34     "MULB",
35     "MULW",
36     "MULL",
37     "MULQ",
38 
39     "ADDB",
40     "ADDW",
41     "ADDL",
42     "ADDQ",
43 
44     "ADCB",
45     "ADCW",
46     "ADCL",
47     "ADCQ",
48 
49     "SUBB",
50     "SUBW",
51     "SUBL",
52     "SUBQ",
53 
54     "SBBB",
55     "SBBW",
56     "SBBL",
57     "SBBQ",
58 
59     "LOGICB",
60     "LOGICW",
61     "LOGICL",
62     "LOGICQ",
63 
64     "INCB",
65     "INCW",
66     "INCL",
67     "INCQ",
68 
69     "DECB",
70     "DECW",
71     "DECL",
72     "DECQ",
73 
74     "SHLB",
75     "SHLW",
76     "SHLL",
77     "SHLQ",
78 
79     "SARB",
80     "SARW",
81     "SARL",
82     "SARQ",
83 
84     "BMILGB",
85     "BMILGW",
86     "BMILGL",
87     "BMILGQ",
88 
89     "ADCX",
90     "ADOX",
91     "ADCOX",
92 
93     "CLR",
94 };
95 
96 static void
97 cpu_x86_dump_seg_cache(CPUX86State *env, FILE *f,
98                        const char *name, struct SegmentCache *sc)
99 {
100 #ifdef TARGET_X86_64
101     if (env->hflags & HF_CS64_MASK) {
102         qemu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
103                      sc->selector, sc->base, sc->limit,
104                      sc->flags & 0x00ffff00);
105     } else
106 #endif
107     {
108         qemu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
109                      (uint32_t)sc->base, sc->limit,
110                      sc->flags & 0x00ffff00);
111     }
112 
113     if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
114         goto done;
115 
116     qemu_fprintf(f, " DPL=%d ",
117                  (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
118     if (sc->flags & DESC_S_MASK) {
119         if (sc->flags & DESC_CS_MASK) {
120             qemu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
121                          ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
122             qemu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
123                          (sc->flags & DESC_R_MASK) ? 'R' : '-');
124         } else {
125             qemu_fprintf(f, (sc->flags & DESC_B_MASK
126                              || env->hflags & HF_LMA_MASK)
127                          ? "DS  " : "DS16");
128             qemu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
129                          (sc->flags & DESC_W_MASK) ? 'W' : '-');
130         }
131         qemu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
132     } else {
133         static const char *sys_type_name[2][16] = {
134             { /* 32 bit mode */
135                 "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
136                 "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
137                 "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
138                 "CallGate32", "Reserved", "IntGate32", "TrapGate32"
139             },
140             { /* 64 bit mode */
141                 "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
142                 "Reserved", "Reserved", "Reserved", "Reserved",
143                 "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
144                 "Reserved", "IntGate64", "TrapGate64"
145             }
146         };
147         qemu_fprintf(f, "%s",
148                      sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
149                      [(sc->flags & DESC_TYPE_MASK) >> DESC_TYPE_SHIFT]);
150     }
151 done:
152     qemu_fprintf(f, "\n");
153 }
154 
155 #ifndef CONFIG_USER_ONLY
156 
157 /* ARRAY_SIZE check is not required because
158  * DeliveryMode(dm) has a size of 3 bit.
159  */
160 static inline const char *dm2str(uint32_t dm)
161 {
162     static const char *str[] = {
163         "Fixed",
164         "...",
165         "SMI",
166         "...",
167         "NMI",
168         "INIT",
169         "...",
170         "ExtINT"
171     };
172     return str[dm];
173 }
174 
175 static void dump_apic_lvt(const char *name, uint32_t lvt, bool is_timer)
176 {
177     uint32_t dm = (lvt & APIC_LVT_DELIV_MOD) >> APIC_LVT_DELIV_MOD_SHIFT;
178     qemu_printf("%s\t 0x%08x %s %-5s %-6s %-7s %-12s %-6s",
179                 name, lvt,
180                 lvt & APIC_LVT_INT_POLARITY ? "active-lo" : "active-hi",
181                 lvt & APIC_LVT_LEVEL_TRIGGER ? "level" : "edge",
182                 lvt & APIC_LVT_MASKED ? "masked" : "",
183                 lvt & APIC_LVT_DELIV_STS ? "pending" : "",
184                 !is_timer ?
185                     "" : lvt & APIC_LVT_TIMER_PERIODIC ?
186                             "periodic" : lvt & APIC_LVT_TIMER_TSCDEADLINE ?
187                                             "tsc-deadline" : "one-shot",
188                 dm2str(dm));
189     if (dm != APIC_DM_NMI) {
190         qemu_printf(" (vec %u)\n", lvt & APIC_VECTOR_MASK);
191     } else {
192         qemu_printf("\n");
193     }
194 }
195 
196 /* ARRAY_SIZE check is not required because
197  * destination shorthand has a size of 2 bit.
198  */
199 static inline const char *shorthand2str(uint32_t shorthand)
200 {
201     const char *str[] = {
202         "no-shorthand", "self", "all-self", "all"
203     };
204     return str[shorthand];
205 }
206 
207 static inline uint8_t divider_conf(uint32_t divide_conf)
208 {
209     uint8_t divide_val = ((divide_conf & 0x8) >> 1) | (divide_conf & 0x3);
210 
211     return divide_val == 7 ? 1 : 2 << divide_val;
212 }
213 
214 static inline void mask2str(char *str, uint32_t val, uint8_t size)
215 {
216     while (size--) {
217         *str++ = (val >> size) & 1 ? '1' : '0';
218     }
219     *str = 0;
220 }
221 
222 #define MAX_LOGICAL_APIC_ID_MASK_SIZE 16
223 
224 static void dump_apic_icr(APICCommonState *s, CPUX86State *env)
225 {
226     uint32_t icr = s->icr[0], icr2 = s->icr[1];
227     uint8_t dest_shorthand = \
228         (icr & APIC_ICR_DEST_SHORT) >> APIC_ICR_DEST_SHORT_SHIFT;
229     bool logical_mod = icr & APIC_ICR_DEST_MOD;
230     char apic_id_str[MAX_LOGICAL_APIC_ID_MASK_SIZE + 1];
231     uint32_t dest_field;
232     bool x2apic;
233 
234     qemu_printf("ICR\t 0x%08x %s %s %s %s\n",
235                 icr,
236                 logical_mod ? "logical" : "physical",
237                 icr & APIC_ICR_TRIGGER_MOD ? "level" : "edge",
238                 icr & APIC_ICR_LEVEL ? "assert" : "de-assert",
239                 shorthand2str(dest_shorthand));
240 
241     qemu_printf("ICR2\t 0x%08x", icr2);
242     if (dest_shorthand != 0) {
243         qemu_printf("\n");
244         return;
245     }
246     x2apic = env->features[FEAT_1_ECX] & CPUID_EXT_X2APIC;
247     dest_field = x2apic ? icr2 : icr2 >> APIC_ICR_DEST_SHIFT;
248 
249     if (!logical_mod) {
250         if (x2apic) {
251             qemu_printf(" cpu %u (X2APIC ID)\n", dest_field);
252         } else {
253             qemu_printf(" cpu %u (APIC ID)\n",
254                         dest_field & APIC_LOGDEST_XAPIC_ID);
255         }
256         return;
257     }
258 
259     if (s->dest_mode == 0xf) { /* flat mode */
260         mask2str(apic_id_str, icr2 >> APIC_ICR_DEST_SHIFT, 8);
261         qemu_printf(" mask %s (APIC ID)\n", apic_id_str);
262     } else if (s->dest_mode == 0) { /* cluster mode */
263         if (x2apic) {
264             mask2str(apic_id_str, dest_field & APIC_LOGDEST_X2APIC_ID, 16);
265             qemu_printf(" cluster %u mask %s (X2APIC ID)\n",
266                         dest_field >> APIC_LOGDEST_X2APIC_SHIFT, apic_id_str);
267         } else {
268             mask2str(apic_id_str, dest_field & APIC_LOGDEST_XAPIC_ID, 4);
269             qemu_printf(" cluster %u mask %s (APIC ID)\n",
270                         dest_field >> APIC_LOGDEST_XAPIC_SHIFT, apic_id_str);
271         }
272     }
273 }
274 
275 static void dump_apic_interrupt(const char *name, uint32_t *ireg_tab,
276                                 uint32_t *tmr_tab)
277 {
278     int i, empty = true;
279 
280     qemu_printf("%s\t ", name);
281     for (i = 0; i < 256; i++) {
282         if (apic_get_bit(ireg_tab, i)) {
283             qemu_printf("%u%s ", i,
284                         apic_get_bit(tmr_tab, i) ? "(level)" : "");
285             empty = false;
286         }
287     }
288     qemu_printf("%s\n", empty ? "(none)" : "");
289 }
290 
291 void x86_cpu_dump_local_apic_state(CPUState *cs, int flags)
292 {
293     X86CPU *cpu = X86_CPU(cs);
294     APICCommonState *s = APIC_COMMON(cpu->apic_state);
295     if (!s) {
296         qemu_printf("local apic state not available\n");
297         return;
298     }
299     uint32_t *lvt = s->lvt;
300 
301     qemu_printf("dumping local APIC state for CPU %-2u\n\n",
302                 CPU(cpu)->cpu_index);
303     dump_apic_lvt("LVT0", lvt[APIC_LVT_LINT0], false);
304     dump_apic_lvt("LVT1", lvt[APIC_LVT_LINT1], false);
305     dump_apic_lvt("LVTPC", lvt[APIC_LVT_PERFORM], false);
306     dump_apic_lvt("LVTERR", lvt[APIC_LVT_ERROR], false);
307     dump_apic_lvt("LVTTHMR", lvt[APIC_LVT_THERMAL], false);
308     dump_apic_lvt("LVTT", lvt[APIC_LVT_TIMER], true);
309 
310     qemu_printf("Timer\t DCR=0x%x (divide by %u) initial_count = %u"
311                 " current_count = %u\n",
312                 s->divide_conf & APIC_DCR_MASK,
313                 divider_conf(s->divide_conf),
314                 s->initial_count, apic_get_current_count(s));
315 
316     qemu_printf("SPIV\t 0x%08x APIC %s, focus=%s, spurious vec %u\n",
317                 s->spurious_vec,
318                 s->spurious_vec & APIC_SPURIO_ENABLED ? "enabled" : "disabled",
319                 s->spurious_vec & APIC_SPURIO_FOCUS ? "on" : "off",
320                 s->spurious_vec & APIC_VECTOR_MASK);
321 
322     dump_apic_icr(s, &cpu->env);
323 
324     qemu_printf("ESR\t 0x%08x\n", s->esr);
325 
326     dump_apic_interrupt("ISR", s->isr, s->tmr);
327     dump_apic_interrupt("IRR", s->irr, s->tmr);
328 
329     qemu_printf("\nAPR 0x%02x TPR 0x%02x DFR 0x%02x LDR 0x%02x",
330                 s->arb_id, s->tpr, s->dest_mode, s->log_dest);
331     if (s->dest_mode == 0) {
332         qemu_printf("(cluster %u: id %u)",
333                     s->log_dest >> APIC_LOGDEST_XAPIC_SHIFT,
334                     s->log_dest & APIC_LOGDEST_XAPIC_ID);
335     }
336     qemu_printf(" PPR 0x%02x\n", apic_get_ppr(s));
337 }
338 
339 #endif /* !CONFIG_USER_ONLY */
340 
341 #define DUMP_CODE_BYTES_TOTAL    50
342 #define DUMP_CODE_BYTES_BACKWARD 20
343 
344 void x86_cpu_dump_state(CPUState *cs, FILE *f, int flags)
345 {
346     X86CPU *cpu = X86_CPU(cs);
347     CPUX86State *env = &cpu->env;
348     int eflags, i, nb;
349     char cc_op_name[32];
350     static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
351 
352     eflags = cpu_compute_eflags(env);
353 #ifdef TARGET_X86_64
354     if (env->hflags & HF_CS64_MASK) {
355         qemu_fprintf(f, "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
356                      "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
357                      "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
358                      "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
359                      "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
360                      env->regs[R_EAX],
361                      env->regs[R_EBX],
362                      env->regs[R_ECX],
363                      env->regs[R_EDX],
364                      env->regs[R_ESI],
365                      env->regs[R_EDI],
366                      env->regs[R_EBP],
367                      env->regs[R_ESP],
368                      env->regs[8],
369                      env->regs[9],
370                      env->regs[10],
371                      env->regs[11],
372                      env->regs[12],
373                      env->regs[13],
374                      env->regs[14],
375                      env->regs[15],
376                      env->eip, eflags,
377                      eflags & DF_MASK ? 'D' : '-',
378                      eflags & CC_O ? 'O' : '-',
379                      eflags & CC_S ? 'S' : '-',
380                      eflags & CC_Z ? 'Z' : '-',
381                      eflags & CC_A ? 'A' : '-',
382                      eflags & CC_P ? 'P' : '-',
383                      eflags & CC_C ? 'C' : '-',
384                      env->hflags & HF_CPL_MASK,
385                      (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
386                      (env->a20_mask >> 20) & 1,
387                      (env->hflags >> HF_SMM_SHIFT) & 1,
388                      cs->halted);
389     } else
390 #endif
391     {
392         qemu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
393                      "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
394                      "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
395                      (uint32_t)env->regs[R_EAX],
396                      (uint32_t)env->regs[R_EBX],
397                      (uint32_t)env->regs[R_ECX],
398                      (uint32_t)env->regs[R_EDX],
399                      (uint32_t)env->regs[R_ESI],
400                      (uint32_t)env->regs[R_EDI],
401                      (uint32_t)env->regs[R_EBP],
402                      (uint32_t)env->regs[R_ESP],
403                      (uint32_t)env->eip, eflags,
404                      eflags & DF_MASK ? 'D' : '-',
405                      eflags & CC_O ? 'O' : '-',
406                      eflags & CC_S ? 'S' : '-',
407                      eflags & CC_Z ? 'Z' : '-',
408                      eflags & CC_A ? 'A' : '-',
409                      eflags & CC_P ? 'P' : '-',
410                      eflags & CC_C ? 'C' : '-',
411                      env->hflags & HF_CPL_MASK,
412                      (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
413                      (env->a20_mask >> 20) & 1,
414                      (env->hflags >> HF_SMM_SHIFT) & 1,
415                      cs->halted);
416     }
417 
418     for(i = 0; i < 6; i++) {
419         cpu_x86_dump_seg_cache(env, f, seg_name[i], &env->segs[i]);
420     }
421     cpu_x86_dump_seg_cache(env, f, "LDT", &env->ldt);
422     cpu_x86_dump_seg_cache(env, f, "TR", &env->tr);
423 
424 #ifdef TARGET_X86_64
425     if (env->hflags & HF_LMA_MASK) {
426         qemu_fprintf(f, "GDT=     %016" PRIx64 " %08x\n",
427                      env->gdt.base, env->gdt.limit);
428         qemu_fprintf(f, "IDT=     %016" PRIx64 " %08x\n",
429                      env->idt.base, env->idt.limit);
430         qemu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
431                      (uint32_t)env->cr[0],
432                      env->cr[2],
433                      env->cr[3],
434                      (uint32_t)env->cr[4]);
435         for(i = 0; i < 4; i++)
436             qemu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
437         qemu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
438                      env->dr[6], env->dr[7]);
439     } else
440 #endif
441     {
442         qemu_fprintf(f, "GDT=     %08x %08x\n",
443                      (uint32_t)env->gdt.base, env->gdt.limit);
444         qemu_fprintf(f, "IDT=     %08x %08x\n",
445                      (uint32_t)env->idt.base, env->idt.limit);
446         qemu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
447                      (uint32_t)env->cr[0],
448                      (uint32_t)env->cr[2],
449                      (uint32_t)env->cr[3],
450                      (uint32_t)env->cr[4]);
451         for(i = 0; i < 4; i++) {
452             qemu_fprintf(f, "DR%d=" TARGET_FMT_lx " ", i, env->dr[i]);
453         }
454         qemu_fprintf(f, "\nDR6=" TARGET_FMT_lx " DR7=" TARGET_FMT_lx "\n",
455                      env->dr[6], env->dr[7]);
456     }
457     if (flags & CPU_DUMP_CCOP) {
458         if ((unsigned)env->cc_op < CC_OP_NB)
459             snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
460         else
461             snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
462 #ifdef TARGET_X86_64
463         if (env->hflags & HF_CS64_MASK) {
464             qemu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%s\n",
465                          env->cc_src, env->cc_dst,
466                          cc_op_name);
467         } else
468 #endif
469         {
470             qemu_fprintf(f, "CCS=%08x CCD=%08x CCO=%s\n",
471                          (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
472                          cc_op_name);
473         }
474     }
475     qemu_fprintf(f, "EFER=%016" PRIx64 "\n", env->efer);
476     if (flags & CPU_DUMP_FPU) {
477         int fptag;
478         const uint64_t avx512_mask = XSTATE_OPMASK_MASK | \
479                                      XSTATE_ZMM_Hi256_MASK | \
480                                      XSTATE_Hi16_ZMM_MASK | \
481                                      XSTATE_YMM_MASK | XSTATE_SSE_MASK,
482                        avx_mask = XSTATE_YMM_MASK | XSTATE_SSE_MASK;
483         fptag = 0;
484         for(i = 0; i < 8; i++) {
485             fptag |= ((!env->fptags[i]) << i);
486         }
487         update_mxcsr_from_sse_status(env);
488         qemu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
489                      env->fpuc,
490                      (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
491                      env->fpstt,
492                      fptag,
493                      env->mxcsr);
494         for(i=0;i<8;i++) {
495             CPU_LDoubleU u;
496             u.d = env->fpregs[i].d;
497             qemu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
498                          i, u.l.lower, u.l.upper);
499             if ((i & 1) == 1)
500                 qemu_fprintf(f, "\n");
501             else
502                 qemu_fprintf(f, " ");
503         }
504 
505         if ((env->xcr0 & avx512_mask) == avx512_mask) {
506             /* XSAVE enabled AVX512 */
507             for (i = 0; i < NB_OPMASK_REGS; i++) {
508                 qemu_fprintf(f, "Opmask%02d=%016"PRIx64"%s", i,
509                              env->opmask_regs[i], ((i & 3) == 3) ? "\n" : " ");
510             }
511 
512             nb = (env->hflags & HF_CS64_MASK) ? 32 : 8;
513             for (i = 0; i < nb; i++) {
514                 qemu_fprintf(f, "ZMM%02d=%016"PRIx64" %016"PRIx64" %016"PRIx64
515                              " %016"PRIx64" %016"PRIx64" %016"PRIx64
516                              " %016"PRIx64" %016"PRIx64"\n",
517                              i,
518                              env->xmm_regs[i].ZMM_Q(7),
519                              env->xmm_regs[i].ZMM_Q(6),
520                              env->xmm_regs[i].ZMM_Q(5),
521                              env->xmm_regs[i].ZMM_Q(4),
522                              env->xmm_regs[i].ZMM_Q(3),
523                              env->xmm_regs[i].ZMM_Q(2),
524                              env->xmm_regs[i].ZMM_Q(1),
525                              env->xmm_regs[i].ZMM_Q(0));
526             }
527         } else if ((env->xcr0 & avx_mask)  == avx_mask) {
528             /* XSAVE enabled AVX */
529             nb = env->hflags & HF_CS64_MASK ? 16 : 8;
530             for (i = 0; i < nb; i++) {
531                 qemu_fprintf(f, "YMM%02d=%016"PRIx64" %016"PRIx64" %016"PRIx64
532                              " %016"PRIx64"\n", i,
533                              env->xmm_regs[i].ZMM_Q(3),
534                              env->xmm_regs[i].ZMM_Q(2),
535                              env->xmm_regs[i].ZMM_Q(1),
536                              env->xmm_regs[i].ZMM_Q(0));
537             }
538         } else { /* SSE and below cases */
539             nb = env->hflags & HF_CS64_MASK ? 16 : 8;
540             for (i = 0; i < nb; i++) {
541                 qemu_fprintf(f, "XMM%02d=%016"PRIx64" %016"PRIx64"%s",
542                              i,
543                              env->xmm_regs[i].ZMM_Q(1),
544                              env->xmm_regs[i].ZMM_Q(0),
545                              (i & 1) ? "\n" : " ");
546             }
547         }
548     }
549     if (flags & CPU_DUMP_CODE) {
550         target_ulong base = env->segs[R_CS].base + env->eip;
551         target_ulong offs = MIN(env->eip, DUMP_CODE_BYTES_BACKWARD);
552         uint8_t code;
553         char codestr[3];
554 
555         qemu_fprintf(f, "Code=");
556         for (i = 0; i < DUMP_CODE_BYTES_TOTAL; i++) {
557             if (cpu_memory_rw_debug(cs, base - offs + i, &code, 1, 0) == 0) {
558                 snprintf(codestr, sizeof(codestr), "%02x", code);
559             } else {
560                 snprintf(codestr, sizeof(codestr), "??");
561             }
562             qemu_fprintf(f, "%s%s%s%s", i > 0 ? " " : "",
563                          i == offs ? "<" : "", codestr, i == offs ? ">" : "");
564         }
565         qemu_fprintf(f, "\n");
566     }
567 }
568