diff options
Diffstat (limited to 'linux-user/main.c')
-rw-r--r-- | linux-user/main.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 42f4a03..53bf1bb 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -1412,6 +1412,98 @@ void cpu_loop (CPUState *env) } #endif +#ifdef TARGET_M68K + +void cpu_loop(CPUM68KState *env) +{ + int trapnr; + unsigned int n; + target_siginfo_t info; + TaskState *ts = env->opaque; + + for(;;) { + trapnr = cpu_m68k_exec(env); + switch(trapnr) { + case EXCP_ILLEGAL: + { + if (ts->sim_syscalls) { + uint16_t nr; + nr = lduw(env->pc + 2); + env->pc += 4; + do_m68k_simcall(env, nr); + } else { + goto do_sigill; + } + } + break; + case EXCP_HALTED: + /* Semihosing syscall. */ + env->pc += 2; + do_m68k_semihosting(env, env->dregs[0]); + break; + case EXCP_LINEA: + case EXCP_LINEF: + case EXCP_UNSUPPORTED: + do_sigill: + info.si_signo = SIGILL; + info.si_errno = 0; + info.si_code = TARGET_ILL_ILLOPN; + info._sifields._sigfault._addr = env->pc; + queue_signal(info.si_signo, &info); + break; + case EXCP_TRAP0: + { + ts->sim_syscalls = 0; + n = env->dregs[0]; + env->pc += 2; + env->dregs[0] = do_syscall(env, + n, + env->dregs[1], + env->dregs[2], + env->dregs[3], + env->dregs[4], + env->dregs[5], + env->dregs[6]); + } + break; + case EXCP_INTERRUPT: + /* just indicate that signals should be handled asap */ + break; + case EXCP_ACCESS: + { + info.si_signo = SIGSEGV; + info.si_errno = 0; + /* XXX: check env->error_code */ + info.si_code = TARGET_SEGV_MAPERR; + info._sifields._sigfault._addr = env->mmu.ar; + queue_signal(info.si_signo, &info); + } + break; + case EXCP_DEBUG: + { + int sig; + + sig = gdb_handlesig (env, TARGET_SIGTRAP); + if (sig) + { + info.si_signo = sig; + info.si_errno = 0; + info.si_code = TARGET_TRAP_BRKPT; + queue_signal(info.si_signo, &info); + } + } + break; + default: + fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", + trapnr); + cpu_dump_state(env, stderr, fprintf, 0); + abort(); + } + process_pending_signals(env); + } +} +#endif /* TARGET_M68K */ + void usage(void) { printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n" @@ -1685,6 +1777,35 @@ int main(int argc, char **argv) env->gpr[i] = regs->gpr[i]; } } +#elif defined(TARGET_M68K) + { + m68k_def_t *def; + def = m68k_find_by_name("cfv4e"); + if (def == NULL) { + cpu_abort(cpu_single_env, + "Unable to find m68k CPU definition\n"); + } + cpu_m68k_register(cpu_single_env, def); + env->pc = regs->pc; + env->dregs[0] = regs->d0; + env->dregs[1] = regs->d1; + env->dregs[2] = regs->d2; + env->dregs[3] = regs->d3; + env->dregs[4] = regs->d4; + env->dregs[5] = regs->d5; + env->dregs[6] = regs->d6; + env->dregs[7] = regs->d7; + env->aregs[0] = regs->a0; + env->aregs[1] = regs->a1; + env->aregs[2] = regs->a2; + env->aregs[3] = regs->a3; + env->aregs[4] = regs->a4; + env->aregs[5] = regs->a5; + env->aregs[6] = regs->a6; + env->aregs[7] = regs->usp; + env->sr = regs->sr; + ts->sim_syscalls = 1; + } #elif defined(TARGET_MIPS) { int i; |