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authorPhilippe Mathieu-Daudé2020-11-26 11:59:21 +0100
committerPhilippe Mathieu-Daudé2021-01-14 17:13:53 +0100
commit27ea1bc077298ce00cde57050875c48ad1ceab7f (patch)
tree1562c3d68eff657c5eba33cd96d368439d6c9cd9
parenttarget/mips: Convert Rel6 LLD/SCD opcodes to decodetree (diff)
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target/mips: Convert Rel6 LL/SC opcodes to decodetree
LL/SC 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: <20201208203704.243704-14-f4bug@amsat.org>
-rw-r--r--target/mips/mips32r6.decode2
-rw-r--r--target/mips/translate.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/target/mips/mips32r6.decode b/target/mips/mips32r6.decode
index 0b5befccc8..837c991edc 100644
--- a/target/mips/mips32r6.decode
+++ b/target/mips/mips32r6.decode
@@ -31,4 +31,6 @@ REMOVED 101010 ----- ----- ---------------- # SWL
REMOVED 101110 ----- ----- ---------------- # SWR
REMOVED 101111 ----- ----- ---------------- # CACHE
+REMOVED 110000 ----- ----- ---------------- # LL
REMOVED 110011 ----- ----- ---------------- # PREF
+REMOVED 111000 ----- ----- ---------------- # SC
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 4db95c5588..a5cf1742a8 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -28584,7 +28584,6 @@ 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:
@@ -28605,7 +28604,6 @@ static bool decode_opc_legacy(CPUMIPSState *env, DisasContext *ctx)
break;
case OPC_SC:
check_insn(ctx, ISA_MIPS2);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
}