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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id a18sm2093410pgl.44.2019.08.23.07.22.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Aug 2019 07:22:35 -0700 (PDT) To: Peter Maydell References: <20190819213755.26175-1-richard.henderson@linaro.org> <20190819213755.26175-16-richard.henderson@linaro.org> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: <69cf4f6e-7453-c858-75fb-ae8bedd9dde1@linaro.org> Date: Fri, 23 Aug 2019 07:22:32 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::641 Subject: Re: [Qemu-devel] [PATCH v2 15/68] target/arm: Convert BX, BXJ, BLX (register) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm , QEMU Developers Errors-To: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-devel" X-TUID: oUAHTnht2D10 On 8/23/19 4:49 AM, Peter Maydell wrote: > On Mon, 19 Aug 2019 at 22:38, Richard Henderson > wrote: >> >> Signed-off-by: Richard Henderson >> --- >> target/arm/translate.c | 78 ++++++++++++++++++++---------------------- >> target/arm/a32.decode | 7 ++++ >> target/arm/t32.decode | 2 ++ >> 3 files changed, 47 insertions(+), 40 deletions(-) > >> @@ -195,8 +196,14 @@ CRC32CW .... 0001 0100 .... .... 0010 0100 .... @rndm >> >> %sysm 8:1 16:4 >> >> +@rm ---- .... .... .... .... .... .... rm:4 &r >> + >> MRS_bank ---- 0001 0 r:1 00 .... rd:4 001. 0000 0000 &mrs_bank %sysm >> MSR_bank ---- 0001 0 r:1 10 .... 1111 001. 0000 rn:4 &msr_bank %sysm >> >> MRS_reg ---- 0001 0 r:1 00 1111 rd:4 0000 0000 0000 &mrs_reg >> MSR_reg ---- 0001 0 r:1 10 mask:4 1111 0000 0000 rn:4 &msr_reg >> + >> +BX .... 0001 0010 1111 1111 1111 0001 .... @rm >> +BXJ .... 0001 0010 1111 1111 1111 0010 .... @rm >> +BLX_r .... 0001 0010 1111 1111 1111 0011 .... @rm > > Why do the decode patterns for these use '....' in the cond field > rather than '----' like the other patterns ? As much as possible I've tried to put the "----" in the format, so that it'll be easier in future to add a cond:4 field. Except that the MRS/MSR insns are all one-offs so I didn't bother creating a separate format. r~ > > Otherwise > Reviewed-by: Peter Maydell > > thanks > -- PMM >