COP1x opcode has been removed from the Release 6.
Add a single decodetree entry for it, triggering
Reserved Instruction if ever used.
Remove unreachable check_insn_opc_removed() call.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>
Reviewed-by: Richard Henderson <richard.henderson@xxxxxxxxxx>
Message-Id: <20201208203704.243704-8-f4bug@xxxxxxxxx>
---
target/mips/mips32r6.decode | 2 ++
target/mips/translate.c | 1 -
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/mips/mips32r6.decode b/target/mips/mips32r6.decode
index 259bac612ab..7b12a1bff25 100644
--- a/target/mips/mips32r6.decode
+++ b/target/mips/mips32r6.decode
@@ -16,4 +16,6 @@
LSA 000000 ..... ..... ..... 000 .. 000101 @lsa
+REMOVED 010011 ----- ----- ----- ----- ------ # COP1X (COP3)
+
REMOVED 011100 ----- ----- ----- ----- ------ # SPECIAL2
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 01c1ee546e2..52397bce84b 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -28827,7 +28827,6 @@ static bool decode_opc_legacy(CPUMIPSState *env, DisasContext *ctx)
break;
case OPC_CP3:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
if (ctx->CP0_Config1 & (1 << CP0C1_FP)) {
check_cp1_enabled(ctx);
op1 = MASK_CP3(ctx->opcode);
--
2.26.2
