From patchwork Tue Sep 6 03:42:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 666255 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sSvk90pwHz9s3v for ; Tue, 6 Sep 2016 15:08:01 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b=aL6X+45I; dkim-atps=neutral Received: from localhost ([::1]:58629 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh8c2-0002ZC-2j for incoming@patchwork.ozlabs.org; Tue, 06 Sep 2016 01:07:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49637) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh7GB-0002vV-Bg for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:41:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bh7G8-0007mA-5Z for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:41:18 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:48250) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh7G7-0007kr-Lx; Mon, 05 Sep 2016 23:41:16 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 3sSsp12mM8z9sBr; Tue, 6 Sep 2016 13:41:12 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1473133273; bh=VVSmGz39pSA3oXiIv5iKTSyt4uFhSOvlU2YG+so71Rs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aL6X+45IPBF3gn0GbdXlBGC1tsUjCF4N3pik3A/Jq6y5jHX/xWFK5Jzod0zz3WkdP YNzQnvqweXRLfQjkq7d/B6YNHmZQMVrUp8+zQJzUxyhgYUvHg6LeqlnHAeWntCmFQr S5l6O4D7ODHa4KLxixdNO7/fNZbKr1WAWaOzVOyA= From: David Gibson To: peter.maydell@linaro.org Date: Tue, 6 Sep 2016 13:42:16 +1000 Message-Id: <1473133396-18940-7-git-send-email-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1473133396-18940-1-git-send-email-david@gibson.dropbear.id.au> References: <1473133396-18940-1-git-send-email-david@gibson.dropbear.id.au> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2401:3900:2:1::2 Subject: [Qemu-devel] [PULL 06/66] target-ppc: add cmprb instruction 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: David Gibson , qemu-ppc@nongnu.org, agraf@suse.de, Nikunj A Dadhania , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Nikunj A Dadhania ISA 3.0 Compare Ranged Byte instruction useful for isupper/islower/isaplha kind of operation. Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson Signed-off-by: David Gibson --- target-ppc/translate.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index ca246ea..c64ce79 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -817,6 +817,44 @@ static void gen_cmpli(DisasContext *ctx) } } +/* cmprb - range comparison: isupper, isaplha, islower*/ +static void gen_cmprb(DisasContext *ctx) +{ + TCGv_i32 src1 = tcg_temp_new_i32(); + TCGv_i32 src2 = tcg_temp_new_i32(); + TCGv_i32 src2lo = tcg_temp_new_i32(); + TCGv_i32 src2hi = tcg_temp_new_i32(); + TCGv_i32 crf = cpu_crf[crfD(ctx->opcode)]; + + tcg_gen_trunc_tl_i32(src1, cpu_gpr[rA(ctx->opcode)]); + tcg_gen_trunc_tl_i32(src2, cpu_gpr[rB(ctx->opcode)]); + + tcg_gen_andi_i32(src1, src1, 0xFF); + tcg_gen_ext8u_i32(src2lo, src2); + tcg_gen_shri_i32(src2, src2, 8); + tcg_gen_ext8u_i32(src2hi, src2); + + tcg_gen_setcond_i32(TCG_COND_LEU, src2lo, src2lo, src1); + tcg_gen_setcond_i32(TCG_COND_LEU, src2hi, src1, src2hi); + tcg_gen_and_i32(crf, src2lo, src2hi); + + if (ctx->opcode & 0x00200000) { + tcg_gen_shri_i32(src2, src2, 8); + tcg_gen_ext8u_i32(src2lo, src2); + tcg_gen_shri_i32(src2, src2, 8); + tcg_gen_ext8u_i32(src2hi, src2); + tcg_gen_setcond_i32(TCG_COND_LEU, src2lo, src2lo, src1); + tcg_gen_setcond_i32(TCG_COND_LEU, src2hi, src1, src2hi); + tcg_gen_and_i32(src2lo, src2lo, src2hi); + tcg_gen_or_i32(crf, crf, src2lo); + } + tcg_gen_shli_i32(crf, crf, CRF_GT); + tcg_temp_free_i32(src1); + tcg_temp_free_i32(src2); + tcg_temp_free_i32(src2lo); + tcg_temp_free_i32(src2hi); +} + /* isel (PowerPC 2.03 specification) */ static void gen_isel(DisasContext *ctx) { @@ -9897,6 +9935,7 @@ GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER), GEN_HANDLER(cmpl, 0x1F, 0x00, 0x01, 0x00400000, PPC_INTEGER), GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER), GEN_HANDLER_E(cmpb, 0x1F, 0x1C, 0x0F, 0x00000001, PPC_NONE, PPC2_ISA205), +GEN_HANDLER_E(cmprb, 0x1F, 0x00, 0x06, 0x00400001, PPC_NONE, PPC2_ISA300), GEN_HANDLER(isel, 0x1F, 0x0F, 0xFF, 0x00000001, PPC_ISEL), GEN_HANDLER(addi, 0x0E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER), GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER),