From: Fredrik Noring <nor...@nocrew.org>
Explicitely mark handling of PREF instruction for R5900 as
treating the same as NOP.
Reviewed-by: Aleksandar Markovic <amarko...@wavecomp.com>
Signed-off-by: Fredrik Noring <nor...@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarko...@wavecomp.com>
---
target/mips/translate.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/target/mips/translate.c b/target/mips/translate.c
index c79da3c..714f2e6 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). */
--
2.7.4
