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[PULL 65/66] target/mips: Convert Rel6 LL/SC opcodes to decodetree
From: |
Philippe Mathieu-Daudé |
Subject: |
[PULL 65/66] target/mips: Convert Rel6 LL/SC opcodes to decodetree |
Date: |
Thu, 7 Jan 2021 23:22:52 +0100 |
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>
---
target/mips/mips32r6.decode | 2 ++
target/mips/translate.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/mips/mips32r6.decode b/target/mips/mips32r6.decode
index 3ec50704cf2..489c20aa4e9 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 9f717aab287..b5b7706a7c2 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -28585,7 +28585,6 @@ 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:
@@ -28606,7 +28605,6 @@ 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);
}
--
2.26.2
- [PULL 55/66] target/mips: Introduce decodetree helpers for MSA LSA/DLSA opcodes, (continued)
- [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, 2021/01/07
- [PULL 65/66] target/mips: Convert Rel6 LL/SC opcodes to decodetree,
Philippe Mathieu-Daudé <=
- [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