Report this properly via exception and, importantly, allow
the disassembler the chance to tell us what insn is not handled.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
target-m68k/translate.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 60c8b4b..2f956d9 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -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)
--
2.7.4
