4 * Copyright (c) 2003 Fabrice Bellard
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #define DEBUG_LOGFILE "/tmp/qemu.log"
31 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
33 #if defined(__i386__) && !defined(CONFIG_STATIC)
34 /* Force usage of an ELF interpreter even if it is an ELF shared
36 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
39 /* for recent libc, we add these dummy symbols which are not declared
40 when generating a linked object (bug in ld ?) */
41 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
42 long __init_array_start[0];
43 long __init_array_end[0];
44 long __fini_array_start[0];
45 long __fini_array_end[0];
48 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
49 we allocate a bigger stack. Need a better solution, for example
50 by remapping the process stack directly at the right place */
51 unsigned long x86_stack_size = 512 * 1024;
53 void gemu_log(const char *fmt, ...)
58 vfprintf(stderr, fmt, ap);
62 void cpu_outb(CPUState *env, int addr, int val)
64 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
67 void cpu_outw(CPUState *env, int addr, int val)
69 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
72 void cpu_outl(CPUState *env, int addr, int val)
74 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
77 int cpu_inb(CPUState *env, int addr)
79 fprintf(stderr, "inb: port=0x%04x\n", addr);
83 int cpu_inw(CPUState *env, int addr)
85 fprintf(stderr, "inw: port=0x%04x\n", addr);
89 int cpu_inl(CPUState *env, int addr)
91 fprintf(stderr, "inl: port=0x%04x\n", addr);
96 /***********************************************************/
97 /* CPUX86 core interface */
99 int cpu_x86_get_pic_interrupt(CPUState *env)
104 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
108 e1 = (addr << 16) | (limit & 0xffff);
109 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
111 stl((uint8_t *)ptr, e1);
112 stl((uint8_t *)ptr + 4, e2);
115 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
116 unsigned long addr, unsigned int sel)
119 e1 = (addr & 0xffff) | (sel << 16);
120 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
121 stl((uint8_t *)ptr, e1);
122 stl((uint8_t *)ptr + 4, e2);
125 uint64_t gdt_table[6];
126 uint64_t idt_table[256];
128 /* only dpl matters as we do only user space emulation */
129 static void set_idt(int n, unsigned int dpl)
131 set_gate(idt_table + n, 0, dpl, 0, 0);
134 void cpu_loop(CPUX86State *env)
138 target_siginfo_t info;
141 trapnr = cpu_x86_exec(env);
145 env->regs[R_EAX] = do_syscall(env,
156 info.si_signo = SIGBUS;
158 info.si_code = TARGET_SI_KERNEL;
159 info._sifields._sigfault._addr = 0;
160 queue_signal(info.si_signo, &info);
163 if (env->eflags & VM_MASK) {
164 handle_vm86_fault(env);
166 info.si_signo = SIGSEGV;
168 info.si_code = TARGET_SI_KERNEL;
169 info._sifields._sigfault._addr = 0;
170 queue_signal(info.si_signo, &info);
174 info.si_signo = SIGSEGV;
176 if (!(env->error_code & 1))
177 info.si_code = TARGET_SEGV_MAPERR;
179 info.si_code = TARGET_SEGV_ACCERR;
180 info._sifields._sigfault._addr = env->cr[2];
181 queue_signal(info.si_signo, &info);
184 if (env->eflags & VM_MASK) {
185 handle_vm86_trap(env, trapnr);
187 /* division by zero */
188 info.si_signo = SIGFPE;
190 info.si_code = TARGET_FPE_INTDIV;
191 info._sifields._sigfault._addr = env->eip;
192 queue_signal(info.si_signo, &info);
197 if (env->eflags & VM_MASK) {
198 handle_vm86_trap(env, trapnr);
200 info.si_signo = SIGTRAP;
202 if (trapnr == EXCP01_SSTP) {
203 info.si_code = TARGET_TRAP_BRKPT;
204 info._sifields._sigfault._addr = env->eip;
206 info.si_code = TARGET_SI_KERNEL;
207 info._sifields._sigfault._addr = 0;
209 queue_signal(info.si_signo, &info);
214 if (env->eflags & VM_MASK) {
215 handle_vm86_trap(env, trapnr);
217 info.si_signo = SIGSEGV;
219 info.si_code = TARGET_SI_KERNEL;
220 info._sifields._sigfault._addr = 0;
221 queue_signal(info.si_signo, &info);
225 info.si_signo = SIGILL;
227 info.si_code = TARGET_ILL_ILLOPN;
228 info._sifields._sigfault._addr = env->eip;
229 queue_signal(info.si_signo, &info);
232 /* just indicate that signals should be handled asap */
235 pc = env->segs[R_CS].base + env->eip;
236 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
240 process_pending_signals(env);
247 void cpu_loop(CPUARMState *env)
250 unsigned int n, insn;
251 target_siginfo_t info;
254 trapnr = cpu_arm_exec(env);
257 info.si_signo = SIGILL;
259 info.si_code = TARGET_ILL_ILLOPN;
260 info._sifields._sigfault._addr = env->regs[15];
261 queue_signal(info.si_signo, &info);
266 insn = ldl((void *)(env->regs[15] - 4));
268 if (n >= ARM_SYSCALL_BASE) {
270 n -= ARM_SYSCALL_BASE;
271 env->regs[0] = do_syscall(env,
285 /* just indicate that signals should be handled asap */
289 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
291 cpu_arm_dump_state(env, stderr, 0);
294 process_pending_signals(env);
304 /* WARNING: dealing with register windows _is_ complicated */
305 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
307 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
308 /* wrap handling : if cwp is on the last window, then we use the
309 registers 'after' the end */
310 if (index < 8 && env->cwp == (NWINDOWS - 1))
311 index += (16 * NWINDOWS);
315 static inline void save_window_offset(CPUSPARCState *env, int offset)
317 unsigned int new_wim, i, cwp1;
320 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
321 ((1LL << NWINDOWS) - 1);
322 /* save the window */
323 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
324 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
325 #if defined(DEBUG_WIN)
326 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
329 for(i = 0; i < 16; i++)
330 stl_raw(sp_ptr + i, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
334 static void save_window(CPUSPARCState *env)
336 save_window_offset(env, 2);
339 static void restore_window(CPUSPARCState *env)
341 unsigned int new_wim, i, cwp1;
344 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
345 ((1LL << NWINDOWS) - 1);
347 /* restore the invalid window */
348 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
349 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
350 #if defined(DEBUG_WIN)
351 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
354 for(i = 0; i < 16; i++)
355 env->regbase[get_reg_index(env, cwp1, 8 + i)] = ldl_raw(sp_ptr + i);
359 static void flush_windows(CPUSPARCState *env)
362 #if defined(DEBUG_WIN)
363 printf("flush_windows:\n");
367 /* if restore would invoke restore_window(), then we can stop */
368 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
369 if (env->wim & (1 << cwp1))
371 #if defined(DEBUG_WIN)
372 printf("offset=%d: ", offset);
374 save_window_offset(env, offset);
379 void cpu_loop (CPUSPARCState *env)
384 trapnr = cpu_sparc_exec (env);
389 ret = do_syscall (env, env->gregs[1],
390 env->regwptr[0], env->regwptr[1],
391 env->regwptr[2], env->regwptr[3],
392 env->regwptr[4], env->regwptr[5]);
393 if ((unsigned int)ret >= (unsigned int)(-515)) {
394 env->psr |= PSR_CARRY;
397 env->psr &= ~PSR_CARRY;
399 env->regwptr[0] = ret;
400 /* next instruction */
402 env->npc = env->npc + 4;
404 case 0x83: /* flush windows */
405 // flush_windows(env);
406 /* next instruction */
408 env->npc = env->npc + 4;
410 case TT_WIN_OVF: /* window overflow */
413 case TT_WIN_UNF: /* window underflow */
417 printf ("Unhandled trap: 0x%x\n", trapnr);
418 cpu_sparc_dump_state(env, stderr, 0);
421 process_pending_signals (env);
429 void cpu_loop(CPUPPCState *env)
431 target_siginfo_t info;
436 trapnr = cpu_ppc_exec(env);
437 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
438 trapnr != EXCP_TRACE) {
440 cpu_ppc_dump_state(env, logfile, 0);
446 case EXCP_SYSCALL_USER:
449 * PPC ABI uses overflow flag in cr0 to signal an error
453 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
454 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
457 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
458 env->gpr[5], env->gpr[6], env->gpr[7],
460 if (ret > (uint32_t)(-515)) {
466 printf("syscall returned 0x%08x (%d)\n", ret, ret);
470 /* Should not happen ! */
471 fprintf(stderr, "RESET asked... Stop emulation\n");
473 fprintf(logfile, "RESET asked... Stop emulation\n");
475 case EXCP_MACHINE_CHECK:
476 fprintf(stderr, "Machine check exeption... Stop emulation\n");
478 fprintf(logfile, "RESET asked... Stop emulation\n");
479 info.si_signo = TARGET_SIGBUS;
481 info.si_code = TARGET_BUS_OBJERR;
482 info._sifields._sigfault._addr = env->nip - 4;
483 queue_signal(info.si_signo, &info);
485 fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]);
487 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
490 switch (env->error_code & 0xF) {
491 case EXCP_DSI_TRANSLATE:
492 info.si_signo = TARGET_SIGSEGV;
494 info.si_code = TARGET_SEGV_MAPERR;
496 case EXCP_DSI_NOTSUP:
497 case EXCP_DSI_EXTERNAL:
498 info.si_signo = TARGET_SIGILL;
500 info.si_code = TARGET_ILL_ILLADR;
503 info.si_signo = TARGET_SIGSEGV;
505 info.si_code = TARGET_SEGV_ACCERR;
508 info.si_signo = TARGET_SIGTRAP;
510 info.si_code = TARGET_TRAP_BRKPT;
513 /* Let's send a regular segfault... */
514 fprintf(stderr, "Invalid segfault errno (%02x)\n",
517 fprintf(logfile, "Invalid segfault errno (%02x)\n",
520 info.si_signo = TARGET_SIGSEGV;
522 info.si_code = TARGET_SEGV_MAPERR;
525 info._sifields._sigfault._addr = env->nip;
526 queue_signal(info.si_signo, &info);
529 fprintf(stderr, "Invalid instruction fetch\n");
531 fprintf(logfile, "Invalid instruction fetch\n");
532 switch (env->error_code) {
533 case EXCP_ISI_TRANSLATE:
534 info.si_signo = TARGET_SIGSEGV;
536 info.si_code = TARGET_SEGV_MAPERR;
539 info.si_signo = TARGET_SIGILL;
541 info.si_code = TARGET_ILL_ILLADR;
543 case EXCP_ISI_NOEXEC:
545 info.si_signo = TARGET_SIGSEGV;
547 info.si_code = TARGET_SEGV_ACCERR;
550 /* Let's send a regular segfault... */
551 fprintf(stderr, "Invalid segfault errno (%02x)\n",
554 fprintf(logfile, "Invalid segfault errno (%02x)\n",
557 info.si_signo = TARGET_SIGSEGV;
559 info.si_code = TARGET_SEGV_MAPERR;
562 info._sifields._sigfault._addr = env->nip - 4;
563 queue_signal(info.si_signo, &info);
566 /* Should not happen ! */
567 fprintf(stderr, "External interruption... Stop emulation\n");
569 fprintf(logfile, "External interruption... Stop emulation\n");
572 fprintf(stderr, "Invalid unaligned memory access\n");
574 fprintf(logfile, "Invalid unaligned memory access\n");
575 info.si_signo = TARGET_SIGBUS;
577 info.si_code = TARGET_BUS_ADRALN;
578 info._sifields._sigfault._addr = env->nip - 4;
579 queue_signal(info.si_signo, &info);
582 switch (env->error_code & ~0xF) {
584 fprintf(stderr, "Program exception\n");
586 fprintf(logfile, "Program exception\n");
588 env->fpscr[7] |= 0x8;
589 /* Finally, update FEX */
590 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
591 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
592 env->fpscr[7] |= 0x4;
593 info.si_signo = TARGET_SIGFPE;
595 switch (env->error_code & 0xF) {
597 info.si_code = TARGET_FPE_FLTOVF;
600 info.si_code = TARGET_FPE_FLTUND;
604 info.si_code = TARGET_FPE_FLTDIV;
607 info.si_code = TARGET_FPE_FLTRES;
610 info.si_code = TARGET_FPE_FLTINV;
619 info.si_code = TARGET_FPE_FLTSUB;
622 fprintf(stderr, "Unknown floating point exception "
623 "(%02x)\n", env->error_code);
625 fprintf(logfile, "Unknown floating point exception "
626 "(%02x)\n", env->error_code & 0xF);
631 fprintf(stderr, "Invalid instruction\n");
633 fprintf(logfile, "Invalid instruction\n");
634 info.si_signo = TARGET_SIGILL;
636 switch (env->error_code & 0xF) {
637 case EXCP_INVAL_INVAL:
638 info.si_code = TARGET_ILL_ILLOPC;
640 case EXCP_INVAL_LSWX:
641 info.si_code = TARGET_ILL_ILLOPN;
644 info.si_code = TARGET_ILL_PRVREG;
647 info.si_code = TARGET_ILL_COPROC;
650 fprintf(stderr, "Unknown invalid operation (%02x)\n",
651 env->error_code & 0xF);
653 fprintf(logfile, "Unknown invalid operation (%02x)\n",
654 env->error_code & 0xF);
656 info.si_code = TARGET_ILL_ILLADR;
661 fprintf(stderr, "Privilege violation\n");
663 fprintf(logfile, "Privilege violation\n");
664 info.si_signo = TARGET_SIGILL;
666 switch (env->error_code & 0xF) {
668 info.si_code = TARGET_ILL_PRVOPC;
671 info.si_code = TARGET_ILL_PRVREG;
674 fprintf(stderr, "Unknown privilege violation (%02x)\n",
675 env->error_code & 0xF);
676 info.si_code = TARGET_ILL_PRVOPC;
681 fprintf(stderr, "Tried to call a TRAP\n");
683 fprintf(logfile, "Tried to call a TRAP\n");
686 /* Should not happen ! */
687 fprintf(stderr, "Unknown program exception (%02x)\n",
690 fprintf(logfile, "Unknwon program exception (%02x)\n",
695 info._sifields._sigfault._addr = env->nip - 4;
696 queue_signal(info.si_signo, &info);
699 fprintf(stderr, "No floating point allowed\n");
701 fprintf(logfile, "No floating point allowed\n");
702 info.si_signo = TARGET_SIGILL;
704 info.si_code = TARGET_ILL_COPROC;
705 info._sifields._sigfault._addr = env->nip - 4;
706 queue_signal(info.si_signo, &info);
709 /* Should not happen ! */
710 fprintf(stderr, "Decrementer exception\n");
712 fprintf(logfile, "Decrementer exception\n");
714 case EXCP_RESA: /* Implementation specific */
715 /* Should not happen ! */
716 fprintf(stderr, "RESA exception should never happen !\n");
718 fprintf(logfile, "RESA exception should never happen !\n");
720 case EXCP_RESB: /* Implementation specific */
721 /* Should not happen ! */
722 fprintf(stderr, "RESB exception should never happen !\n");
724 fprintf(logfile, "RESB exception should never happen !\n");
727 /* Do nothing: we use this to trace execution */
730 /* Should not happen ! */
731 fprintf(stderr, "Floating point assist exception\n");
733 fprintf(logfile, "Floating point assist exception\n");
736 /* We reloaded the msr, just go on */
738 fprintf(stderr, "Tried to go into supervisor mode !\n");
740 fprintf(logfile, "Tried to go into supervisor mode !\n");
745 /* We stopped because of a jump... */
748 /* Should not occur: we always are in user mode */
749 fprintf(stderr, "Return from interrupt ?\n");
751 fprintf(logfile, "Return from interrupt ?\n");
754 /* Don't know why this should ever happen... */
757 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
760 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
761 "0x%02x - aborting\n", trapnr, env->error_code);
765 if (trapnr < EXCP_PPC_MAX)
766 env->exceptions &= ~(1 << trapnr);
767 process_pending_signals(env);
768 if (env->exceptions != 0) {
769 check_exception_state(env);
777 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
778 "usage: qemu-" TARGET_ARCH " [-h] [-d] [-L path] [-s size] program [arguments...]\n"
779 "Linux CPU emulator (compiled for %s emulation)\n"
781 "-h print this help\n"
782 "-L path set the elf interpreter prefix (default=%s)\n"
783 "-s size set the stack size in bytes (default=%ld)\n"
786 "-d activate log (logfile=%s)\n"
787 "-p pagesize set the host page size to 'pagesize'\n",
795 /* XXX: currently only used for async signals (see signal.c) */
796 CPUState *global_env;
797 /* used only if single thread */
798 CPUState *cpu_single_env = NULL;
800 /* used to free thread contexts */
801 TaskState *first_task_state;
803 int main(int argc, char **argv)
805 const char *filename;
806 struct target_pt_regs regs1, *regs = ®s1;
807 struct image_info info1, *info = &info1;
808 TaskState ts1, *ts = &ts1;
817 cpu_set_log_filename(DEBUG_LOGFILE);
828 if (!strcmp(r, "-")) {
830 } else if (!strcmp(r, "d")) {
831 cpu_set_log(CPU_LOG_ALL);
832 } else if (!strcmp(r, "s")) {
834 x86_stack_size = strtol(r, (char **)&r, 0);
835 if (x86_stack_size <= 0)
838 x86_stack_size *= 1024 * 1024;
839 else if (*r == 'k' || *r == 'K')
840 x86_stack_size *= 1024;
841 } else if (!strcmp(r, "L")) {
842 interp_prefix = argv[optind++];
843 } else if (!strcmp(r, "p")) {
844 host_page_size = atoi(argv[optind++]);
845 if (host_page_size == 0 ||
846 (host_page_size & (host_page_size - 1)) != 0) {
847 fprintf(stderr, "page size must be a power of two\n");
856 filename = argv[optind];
859 memset(regs, 0, sizeof(struct target_pt_regs));
861 /* Zero out image_info */
862 memset(info, 0, sizeof(struct image_info));
864 /* Scan interp_prefix dir for replacement files. */
865 init_paths(interp_prefix);
867 /* NOTE: we need to init the CPU at this stage to get the
871 if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
872 printf("Error loading %s\n", filename);
879 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
880 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
881 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
882 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
883 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
884 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
885 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
888 target_set_brk((char *)info->brk);
894 /* build Task State */
895 memset(ts, 0, sizeof(TaskState));
898 env->user_mode_only = 1;
900 #if defined(TARGET_I386)
901 cpu_x86_set_cpl(env, 3);
903 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
904 env->hflags |= HF_PE_MASK;
906 /* linux register setup */
907 env->regs[R_EAX] = regs->eax;
908 env->regs[R_EBX] = regs->ebx;
909 env->regs[R_ECX] = regs->ecx;
910 env->regs[R_EDX] = regs->edx;
911 env->regs[R_ESI] = regs->esi;
912 env->regs[R_EDI] = regs->edi;
913 env->regs[R_EBP] = regs->ebp;
914 env->regs[R_ESP] = regs->esp;
915 env->eip = regs->eip;
917 /* linux interrupt setup */
918 env->idt.base = (void *)idt_table;
919 env->idt.limit = sizeof(idt_table) - 1;
942 /* linux segment setup */
943 env->gdt.base = (void *)gdt_table;
944 env->gdt.limit = sizeof(gdt_table) - 1;
945 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
946 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
947 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
948 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
949 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
950 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
951 cpu_x86_load_seg(env, R_CS, __USER_CS);
952 cpu_x86_load_seg(env, R_DS, __USER_DS);
953 cpu_x86_load_seg(env, R_ES, __USER_DS);
954 cpu_x86_load_seg(env, R_SS, __USER_DS);
955 cpu_x86_load_seg(env, R_FS, __USER_DS);
956 cpu_x86_load_seg(env, R_GS, __USER_DS);
958 #elif defined(TARGET_ARM)
961 for(i = 0; i < 16; i++) {
962 env->regs[i] = regs->uregs[i];
964 env->cpsr = regs->uregs[16];
966 #elif defined(TARGET_SPARC)
970 env->npc = regs->npc;
972 for(i = 0; i < 8; i++)
973 env->gregs[i] = regs->u_regs[i];
974 for(i = 0; i < 8; i++)
975 env->regwptr[i] = regs->u_regs[i + 8];
977 #elif defined(TARGET_PPC)
980 for (i = 0; i < 32; i++) {
981 if (i != 12 && i != 6)
982 env->msr[i] = (regs->msr >> i) & 1;
984 env->nip = regs->nip;
985 for(i = 0; i < 32; i++) {
986 env->gpr[i] = regs->gpr[i];
990 #error unsupported target CPU