From patchwork Fri Apr 26 18:21:45 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 239987 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id F3C452C0114 for ; Sat, 27 Apr 2013 04:37:06 +1000 (EST) Received: from localhost ([::1]:34225 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UVnW5-0008O6-7I for incoming@patchwork.ozlabs.org; Fri, 26 Apr 2013 14:37:05 -0400 Received: from eggs.gnu.org ([208.118.235.92]:55485) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UVnHT-0003Xm-6P for qemu-devel@nongnu.org; Fri, 26 Apr 2013 14:22:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UVnHM-0004zu-Jz for qemu-devel@nongnu.org; Fri, 26 Apr 2013 14:21:59 -0400 Received: from cantor2.suse.de ([195.135.220.15]:38917 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UVnHM-0004yb-3m; Fri, 26 Apr 2013 14:21:52 -0400 Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3F1B55E00021C; Fri, 26 Apr 2013 20:21:51 +0200 (CEST) From: Alexander Graf To: qemu-ppc@nongnu.org Date: Fri, 26 Apr 2013 20:21:45 +0200 Message-Id: <1367000509-8833-27-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1367000509-8833-1-git-send-email-agraf@suse.de> References: <1367000509-8833-1-git-send-email-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x X-Received-From: 195.135.220.15 Cc: Blue Swirl , qemu-devel@nongnu.org, Aurelien Jarno Subject: [Qemu-devel] [PATCH 26/30] target-ppc: emulate fcpsgn instruction X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Aurelien Jarno Needed for Power ISA version 2.05 compliance. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno Signed-off-by: Alexander Graf --- target-ppc/translate.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 2fabbaf..1989818 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -2258,6 +2258,19 @@ static void gen_fneg(DisasContext *ctx) gen_compute_fprf(cpu_fpr[rD(ctx->opcode)], 0, Rc(ctx->opcode) != 0); } +/* fcpsgn: PowerPC 2.05 specification */ +/* XXX: beware that fcpsgn never checks for NaNs nor update FPSCR */ +static void gen_fcpsgn(DisasContext *ctx) +{ + if (unlikely(!ctx->fpu_enabled)) { + gen_exception(ctx, POWERPC_EXCP_FPU); + return; + } + tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)], + cpu_fpr[rB(ctx->opcode)], 0, 63); + gen_compute_fprf(cpu_fpr[rD(ctx->opcode)], 0, Rc(ctx->opcode) != 0); +} + /*** Floating-Point status & ctrl register ***/ /* mcrfs */ @@ -8559,6 +8572,7 @@ GEN_HANDLER(fabs, 0x3F, 0x08, 0x08, 0x001F0000, PPC_FLOAT), GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT), GEN_HANDLER(fnabs, 0x3F, 0x08, 0x04, 0x001F0000, PPC_FLOAT), GEN_HANDLER(fneg, 0x3F, 0x08, 0x01, 0x001F0000, PPC_FLOAT), +GEN_HANDLER_E(fcpsgn, 0x3F, 0x08, 0x00, 0x00000000, PPC_NONE, PPC2_ISA205), GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT), GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT), GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT),