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[PULL 64/66] target/mips: Convert Rel6 LLD/SCD opcodes to decodetree
From: |
Philippe Mathieu-Daudé |
Subject: |
[PULL 64/66] target/mips: Convert Rel6 LLD/SCD opcodes to decodetree |
Date: |
Thu, 7 Jan 2021 23:22:51 +0100 |
LLD/SCD 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: <20201208203704.243704-13-f4bug@amsat.org>
---
target/mips/mips64r6.decode | 3 +++
target/mips/translate.c | 2 --
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/target/mips/mips64r6.decode b/target/mips/mips64r6.decode
index 8c3fc5dae9c..609b8958d25 100644
--- a/target/mips/mips64r6.decode
+++ b/target/mips/mips64r6.decode
@@ -21,3 +21,6 @@ REMOVED 011010 ----- ----- ---------------- #
LDL
REMOVED 011011 ----- ----- ---------------- # LDR
REMOVED 101100 ----- ----- ---------------- # SDL
REMOVED 101101 ----- ----- ---------------- # SDR
+
+REMOVED 110100 ----- ----- ---------------- # LLD
+REMOVED 111100 ----- ----- ---------------- # SCD
diff --git a/target/mips/translate.c b/target/mips/translate.c
index f46d7c5f80b..9f717aab287 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -28871,7 +28871,6 @@ 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);
/* fall through */
case OPC_LDL:
case OPC_LDR:
@@ -28889,7 +28888,6 @@ static bool decode_opc_legacy(CPUMIPSState *env,
DisasContext *ctx)
gen_st(ctx, op, rt, rs, imm);
break;
case OPC_SCD:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
check_insn(ctx, ISA_MIPS3);
if (ctx->insn_flags & INSN_R5900) {
check_insn_opc_user_only(ctx, INSN_R5900);
--
2.26.2
- [PULL 54/66] target/mips: Extract LSA/DLSA translation generators, (continued)
- [PULL 54/66] target/mips: Extract LSA/DLSA translation generators, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 55/66] target/mips: Introduce decodetree helpers for MSA LSA/DLSA opcodes, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 56/66] target/mips: Introduce decodetree helpers for Release6 LSA/DLSA opcodes, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 57/66] target/mips: Remove now unreachable LSA/DLSA opcodes code, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 58/66] target/mips: Convert Rel6 Special2 opcode to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 59/66] target/mips: Convert Rel6 COP1X opcode to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 60/66] target/mips: Convert Rel6 CACHE/PREF opcodes to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 61/66] target/mips: Convert Rel6 LWL/LWR/SWL/SWR opcodes to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 62/66] target/mips: Convert Rel6 LWLE/LWRE/SWLE/SWRE opcodes to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 63/66] target/mips: Convert Rel6 LDL/LDR/SDL/SDR opcodes to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 64/66] target/mips: Convert Rel6 LLD/SCD opcodes to decodetree,
Philippe Mathieu-Daudé <=
- [PULL 65/66] target/mips: Convert Rel6 LL/SC opcodes to decodetree, Philippe Mathieu-Daudé, 2021/01/07
- [PULL 66/66] docs/system: Remove deprecated 'fulong2e' machine alias, Philippe Mathieu-Daudé, 2021/01/07
- Re: [PULL 00/66] MIPS patches for 2021-01-07, Philippe Mathieu-Daudé, 2021/01/07
- Re: [PULL 00/66] MIPS patches for 2021-01-07, no-reply, 2021/01/07
- Re: [PULL 00/66] MIPS patches for 2021-01-07, Peter Maydell, 2021/01/08