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Tue, 27 Apr 2021 14:16:53 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by power9a (Postfix) with ESMTP id B199980139F; Tue, 27 Apr 2021 14:16:53 -0300 (-03) From: Luis Pires To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH v2 10/15] target/ppc: Implement PNOP Date: Tue, 27 Apr 2021 14:16:44 -0300 Message-Id: <20210427171649.364699-11-luis.pires@eldorado.org.br> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210427171649.364699-1-luis.pires@eldorado.org.br> References: <20210427171649.364699-1-luis.pires@eldorado.org.br> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-OriginalArrivalTime: 27 Apr 2021 17:16:53.0902 (UTC) FILETIME=[1E8092E0:01D73B89] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=201.28.113.2; envelope-from=luis.pires@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action 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: richard.henderson@linaro.org, f4bug@amsat.org, lagarcia@br.ibm.com, bruno.larsen@eldorado.org.br, matheus.ferst@eldorado.org.br, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Richard Henderson Signed-off-by: Richard Henderson --- target/ppc/insn64.decode | 5 +++++ target/ppc/translate/fixedpoint-impl.c.inc | 12 ++++++++++++ 2 files changed, 17 insertions(+) diff --git a/target/ppc/insn64.decode b/target/ppc/insn64.decode index 68ed2cbff8..9bef32a845 100644 --- a/target/ppc/insn64.decode +++ b/target/ppc/insn64.decode @@ -30,3 +30,8 @@ =20 PADDI 000001 10 0--.-- .................. \ 001110 ..... ..... ................ @PLS_D + +### Prefixed No-operation Instruction + +PNOP 000001 11 0000-- 000000000000000000 \ + -------------------------------- diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/transl= ate/fixedpoint-impl.c.inc index 76e1832297..7d80e3c002 100644 --- a/target/ppc/translate/fixedpoint-impl.c.inc +++ b/target/ppc/translate/fixedpoint-impl.c.inc @@ -58,3 +58,15 @@ static bool trans_PADDI(DisasContext *ctx, arg_PLS_D *a) } return true; } + +static bool trans_PNOP(DisasContext *ctx, arg_PNOP *a) +{ + /* + * TODO: diagnose the set of patterns that are illegal: + * branches, rfebb, sync other than isync, or a + * service processor attention. + * The Engineering Note allows us to either diagnose + * these as illegal, or treat them all as no-op. + */ + return true; +} --=20 2.25.1