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target-m68k: Do not cpu_abort on undefined insns

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Report this properly via exception and, importantly, allow
the disassembler the chance to tell us what insn is not handled.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1478699171-10637-3-git-send-email-rth@twiddle.net>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2016-11-09 14:46:08 +01:00 committed by Laurent Vivier
parent 7b542eb96d
commit 72d2e4b6a4
1 changed files with 5 additions and 3 deletions
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8
target/m68k/translate.c
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@ -1214,10 +1214,12 @@ DISAS_INSN(undef_fpu)
DISAS_INSN(undef)
{
M68kCPU *cpu = m68k_env_get_cpu(env);
/* ??? This is both instructions that are as yet unimplemented
for the 680x0 series, as well as those that are implemented
but actually illegal for CPU32 or pre-68020. */
qemu_log_mask(LOG_UNIMP, "Illegal instruction: %04x @ %08x",
insn, s->pc - 2);
gen_exception(s, s->pc - 2, EXCP_UNSUPPORTED);
cpu_abort(CPU(cpu), "Illegal instruction: %04x @ %08x", insn, s->pc - 2);
}
DISAS_INSN(mulw)