diff options
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-11-26 11:54:30 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-01-14 17:13:53 +0100 |
| commit | dd5697b2f90c3c6aa4a97b247aa70635914a6041 (patch) | |
| tree | 965242f73874a96489637ec5e1e528662df20535 /target | |
| parent | 9a7372e35491fc4c8f0bb20359dda87626bdf831 (diff) | |
target/mips: Convert Rel6 LWLE/LWRE/SWLE/SWRE opcodes to decodetree
LWLE/LWRE/SWLE/SWRE (EVA) opcodes have been removed from
the Release 6. Add a single decodetree entry for the opcodes,
triggering Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() calls.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201208203704.243704-11-f4bug@amsat.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/mips/mips32r6.decode | 5 | ||||
| -rw-r--r-- | target/mips/translate.c | 4 |
2 files changed, 5 insertions, 4 deletions
diff --git a/target/mips/mips32r6.decode b/target/mips/mips32r6.decode index cb86877490..0b5befccc8 100644 --- a/target/mips/mips32r6.decode +++ b/target/mips/mips32r6.decode @@ -20,6 +20,11 @@ REMOVED 010011 ----- ----- ----- ----- ------ # COP1X (COP3) REMOVED 011100 ----- ----- ----- ----- ------ # SPECIAL2 +REMOVED 011111 ----- ----- ---------- 011001 # LWLE +REMOVED 011111 ----- ----- ---------- 011010 # LWRE +REMOVED 011111 ----- ----- ---------- 100001 # SWLE +REMOVED 011111 ----- ----- ---------- 100010 # SWRE + REMOVED 100010 ----- ----- ---------------- # LWL REMOVED 100110 ----- ----- ---------------- # LWR REMOVED 101010 ----- ----- ---------------- # SWL diff --git a/target/mips/translate.c b/target/mips/translate.c index d9d9952f88..ffe283928b 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -28121,8 +28121,6 @@ static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx) switch (op1) { case OPC_LWLE: case OPC_LWRE: - check_insn_opc_removed(ctx, ISA_MIPS_R6); - /* fall through */ case OPC_LBUE: case OPC_LHUE: case OPC_LBE: @@ -28134,8 +28132,6 @@ static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx) return; case OPC_SWLE: case OPC_SWRE: - check_insn_opc_removed(ctx, ISA_MIPS_R6); - /* fall through */ case OPC_SBE: case OPC_SHE: case OPC_SWE: |