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Mon, 25 Nov 2019 21:22:45 -0800 (PST) Received: from sol.ozlabs.ibm.com ([122.99.82.10]) by smtp.gmail.com with ESMTPSA id t27sm10657920pfq.169.2019.11.25.21.22.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Nov 2019 21:22:45 -0800 (PST) From: Jordan Niethe To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 09/18] powerpc sstep: Add support for prefixed fixed-point arithmetic Date: Tue, 26 Nov 2019 16:21:32 +1100 Message-Id: <20191126052141.28009-10-jniethe5@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191126052141.28009-1-jniethe5@gmail.com> References: <20191126052141.28009-1-jniethe5@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair@popple.id.au, Jordan Niethe Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This adds emulation support for the following prefixed Fixed-Point Arithmetic instructions: * Prefixed Add Immediate (paddi) Signed-off-by: Jordan Niethe --- arch/powerpc/lib/sstep.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 9ae8d177b67f..1bb0c79cb774 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -2776,6 +2776,10 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, break; op->ea = mlsd_8lsd_ea(instr, sufx, regs); switch (sufxopcode) { + case 14: /* paddi */ + op->type = COMPUTE | PREFIXED; + op->val = op->ea; + goto compute_done; case 32: /* plwz */ op->type = MKOP(LOAD, PREFIXED, 4); break; -- 2.20.1