We only implement the Index[Store/Load]Tag from the 'cache' opcode.
Instead of ignoring the other cache operations, report them as
unimplemented.

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
 target/mips/op_helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index 9552b280e0..7f87e57c8e 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -1583,6 +1583,8 @@ void helper_cache(CPUMIPSState *env, target_ulong addr, 
uint32_t op)
         /* Index Load Tag */
         memory_region_dispatch_read(env->itc_tag, index, &env->CP0_TagLo,
                                     MO_64, MEMTXATTRS_UNSPECIFIED);
+    } else {
+        qemu_log_mask(LOG_UNIMP, "cache %u\n", op);
     }
 #endif
 }
-- 
2.21.3


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