diff options
| -rw-r--r-- | target/mips/translate.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index c79da3c2e4..714f2e6be4 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -28357,9 +28357,12 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) break; case OPC_PREF: check_insn_opc_removed(ctx, ISA_MIPS32R6); - check_insn(ctx, ISA_MIPS4 | ISA_MIPS32 | - INSN_R5900); - /* Treat as NOP. */ + if (ctx->insn_flags & INSN_R5900) { + /* Treat as NOP. */ + } else { + check_insn(ctx, ISA_MIPS4 | ISA_MIPS32); + /* Treat as NOP. */ + } break; /* Floating point (COP1). */ |