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target-m68k: add 680x0 divu/divs variants

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Update helper to set the throwing location in case of div-by-0.
Cleanup divX.w and add quad word variants of divX.l.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twidle.net>
[laurent: modified to clear Z on overflow, as found with risu]
This commit is contained in:
Laurent Vivier
2016-10-28 20:42:23 +02:00
parent 8be95defd6
commit 0ccb9c1d81
6 changed files with 221 additions and 73 deletions
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7
linux-user/main.c
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@@ -2864,6 +2864,13 @@ void cpu_loop(CPUM68KState *env)
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_DIV0:
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
info.si_code = TARGET_FPE_INTDIV;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_TRAP0:
{
abi_long ret;