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ColdFire target.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2196 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2006-10-22 00:18:54 +00:00
parent 223b8a40d1
commit e6e5906b6e
32 changed files with 5227 additions and 12 deletions
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121
linux-user/main.c
View file

@ -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;