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[81.231.233.234]) by smtp.gmail.com with ESMTPSA id 22sm3091945ljv.62.2017.06.20.09.09.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 20 Jun 2017 09:09:12 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Date: Tue, 20 Jun 2017 18:09:03 +0200 Message-Id: <1497974944-27050-7-git-send-email-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1497974944-27050-1-git-send-email-edgar.iglesias@gmail.com> References: <1497974944-27050-1-git-send-email-edgar.iglesias@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4010:c07::241 Subject: [Qemu-devel] [PATCH v1 6/7] target-microblaze: dec_barrel: Add BSIFI X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sai.pavan.boddu@xilinx.com, edgar.iglesias@xilinx.com, alistai@xilinx.com, rth@twiddle.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: "Edgar E. Iglesias" Add support for BSIFI. Signed-off-by: Edgar E. Iglesias --- target/microblaze/translate.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 4a8ab22..743b66f 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -661,7 +661,7 @@ static void dec_barrel(DisasContext *dc) { TCGv t0; unsigned int imm_w, imm_s; - bool s, t, e = false; + bool s, t, e = false, i = false; if ((dc->tb_flags & MSR_EE_FLAG) && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) @@ -673,6 +673,7 @@ static void dec_barrel(DisasContext *dc) if (dc->type_b) { /* Insert and extract are only available in immediate mode. */ + i = extract32(dc->imm, 15, 1); e = extract32(dc->imm, 14, 1); } s = extract32(dc->imm, 10, 1); @@ -686,6 +687,17 @@ static void dec_barrel(DisasContext *dc) if (e) { tcg_gen_extract_i32(cpu_R[dc->rd], cpu_R[dc->ra], imm_s, imm_w); + } else if (i) { + int width = imm_w - imm_s + 1; + + if (width == 0 || imm_w <= imm_s) { + /* These inputs have an undefined behavior. */ + qemu_log_mask(LOG_GUEST_ERROR, "bsifi: Bad input w=%d s=%d\n", + imm_w, imm_s); + } else { + tcg_gen_deposit_i32(cpu_R[dc->rd], cpu_R[dc->rd], cpu_R[dc->ra], + imm_s, width); + } } else { t0 = tcg_temp_new();