From: Philippe Mathieu-Daudé Date: Thu, 26 Nov 2020 10:54:56 +0000 (+0100) Subject: target/mips: Convert Rel6 LWL/LWR/SWL/SWR opcodes to decodetree X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=9a7372e35491fc4c8f0bb20359dda87626bdf831;p=qmiga%2Fqemu.git target/mips: Convert Rel6 LWL/LWR/SWL/SWR opcodes to decodetree LWL/LWR/SWL/SWR 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 Reviewed-by: Richard Henderson Message-Id: <20201208203704.243704-10-f4bug@amsat.org> --- diff --git a/target/mips/mips32r6.decode b/target/mips/mips32r6.decode index 543e0c77bb..cb86877490 100644 --- a/target/mips/mips32r6.decode +++ b/target/mips/mips32r6.decode @@ -20,5 +20,10 @@ REMOVED 010011 ----- ----- ----- ----- ------ # COP1X (COP3) REMOVED 011100 ----- ----- ----- ----- ------ # SPECIAL2 +REMOVED 100010 ----- ----- ---------------- # LWL +REMOVED 100110 ----- ----- ---------------- # LWR +REMOVED 101010 ----- ----- ---------------- # SWL +REMOVED 101110 ----- ----- ---------------- # SWR + REMOVED 101111 ----- ----- ---------------- # CACHE REMOVED 110011 ----- ----- ---------------- # PREF diff --git a/target/mips/translate.c b/target/mips/translate.c index 381571e45b..d9d9952f88 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -28588,11 +28588,10 @@ static bool decode_opc_legacy(CPUMIPSState *env, DisasContext *ctx) if (ctx->insn_flags & INSN_R5900) { check_insn_opc_user_only(ctx, INSN_R5900); } + check_insn_opc_removed(ctx, ISA_MIPS_R6); /* Fallthrough */ case OPC_LWL: case OPC_LWR: - check_insn_opc_removed(ctx, ISA_MIPS_R6); - /* Fallthrough */ case OPC_LB: case OPC_LH: case OPC_LW: @@ -28603,8 +28602,6 @@ static bool decode_opc_legacy(CPUMIPSState *env, DisasContext *ctx) break; case OPC_SWL: case OPC_SWR: - check_insn_opc_removed(ctx, ISA_MIPS_R6); - /* fall through */ case OPC_SB: case OPC_SH: case OPC_SW: