From patchwork Thu Oct 27 19:09:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 687900 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 3t4c1w4xlgz9svs for ; Fri, 28 Oct 2016 06:11:32 +1100 (AEDT) Received: from localhost ([::1]:44039 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bzq5K-0003ds-6E for incoming@patchwork.ozlabs.org; Thu, 27 Oct 2016 15:11:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54818) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bzq4B-0002jj-7v for qemu-devel@nongnu.org; Thu, 27 Oct 2016 15:10:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bzq46-0001IZ-Ec for qemu-devel@nongnu.org; Thu, 27 Oct 2016 15:10:19 -0400 Received: from mout.kundenserver.de ([217.72.192.73]:56823) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1bzq46-0001FQ-3h for qemu-devel@nongnu.org; Thu, 27 Oct 2016 15:10:14 -0400 Received: from Quad.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue101) with ESMTPSA (Nemesis) id 0M1FjU-1csuga1O1o-00t8Qj; Thu, 27 Oct 2016 21:10:00 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Thu, 27 Oct 2016 21:09:52 +0200 Message-Id: <1477595394-23807-2-git-send-email-laurent@vivier.eu> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477595394-23807-1-git-send-email-laurent@vivier.eu> References: <1477595394-23807-1-git-send-email-laurent@vivier.eu> X-Provags-ID: V03:K0:wg7qWsp8O8qLGJbAOA3F4Fe5nNBQIiiTB5NpXAgX0MMQV4GX2PO iwOH2ukIQVidod+M4aP4UzE0MZBKSWgRNTlLCMYoPaWgMp64WAf9CCHYMEBlh0weWNM8gnO By7NnV8Ji13NfEuW8bualdvyJ4DbJt/qLQbCdCmSzVL32a2lKH/whuaiGyNWf1MpRtT0SDQ wP5rGwyOOWWvifkKhICzg== X-UI-Out-Filterresults: notjunk:1; V01:K0:ffqK3T3WPbg=:Ac6MGECy1cNgrR40kT7Gfr 4BoIixtedQZ7nB3IRjvAk1UpITBdVKoSGkEXeawZ8SjaIAz4wviaGibPwQLFRYFxG1tJqo+j9 3o+sA+EQxdxm++5ipl2rtj5peYdynfySDk6gpwKZMDcM+H0RZuIuHST1iH9IKRlU7qQbKXfcK rJ5nNkwGTWsffuA0FnhzYXy8OF6c9QbOFPL62jOQfwgC6KbYpLe8AIK2GUUu7mqISYXlINc1I vf73fiOBCFCsdu9a5VWHmHlxY2ueq7PNuGD5Tq83k1fmIAj2BjByw9hhB9A7ubF2FwctwY9jT YpOgklIwb82udYQdPs07kImQD5amT3uYnExMjnYrOBVQ+55SGQIKTXYSHTnlUeyKGs+aZ0Mm+ vzzMGWkZKf9RDw1QlZl7/bdYvjvlFGFS7pgOroSgTeu4bL8GIruHxrusLZ5112bUdWWUSQFAr J+c9eAeEw4Xv3S80qIH2SsmFp8uwTtXj9KBe4aaqLAkhVNXpocJTZaytrenqZRa+pyhcZ+sRr HwW/sCgS5YWUwmvgb0iMshJVrQszlnDxAkApBYhB649+JavSM9F6cpnd5aMFRoCp/dE9cH76K 5OsrNY80SiT1P9CtOxUt6d1FcZGoMnOrCalH1BG/0Ceg+O5UaBg24rr8e/vI3qWXdzyazagV8 2wX2FuFtGsNhvKWw/8LYJfphm5LunAD+hF2erSaO1DiYBpu3c986t8ru1cYwjeizfE6k= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 217.72.192.73 Subject: [Qemu-devel] [PATCH 1/3] target-m68k: add cmpm 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: Laurent Vivier , gerg@uclinux.org, schwab@linux-m68k.org, agraf@suse.de, Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Laurent Vivier Reviewed-by: Richard Henderson --- target-m68k/translate.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/target-m68k/translate.c b/target-m68k/translate.c index ee0ffe3..92e67eb 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -2173,6 +2173,33 @@ DISAS_INSN(cmpa) gen_update_cc_cmp(s, reg, src, opsize); } +DISAS_INSN(cmpm) +{ + int opsize = insn_opsize(insn); + TCGv tmp = tcg_temp_new(); + TCGv src, dst, addr; + + src = gen_load(s, opsize, AREG(insn, 0), 1); + /* delay the update after the second gen_load() */ + tcg_gen_addi_i32(tmp, AREG(insn, 0), opsize_bytes(opsize)); + + /* but if the we use the same address register to + * read the second value, we must use the updated address + */ + if (REG(insn, 0) == REG(insn, 9)) { + addr = tmp; + } else { + addr = AREG(insn, 9); + } + + dst = gen_load(s, opsize, addr, 1); + tcg_gen_mov_i32(AREG(insn, 0), tmp); + tcg_gen_addi_i32(AREG(insn, 9), addr, opsize_bytes(opsize)); + tcg_temp_free(tmp); + + gen_update_cc_cmp(s, dst, src, opsize); +} + DISAS_INSN(eor) { TCGv src; @@ -3414,6 +3441,7 @@ void register_m68k_insns (CPUM68KState *env) INSN(cmpa, b1c0, f1c0, CF_ISA_A); INSN(cmp, b000, f100, M68000); INSN(eor, b100, f100, M68000); + INSN(cmpm, b108, f138, M68000); INSN(cmpa, b0c0, f0c0, M68000); INSN(eor, b180, f1c0, CF_ISA_A); BASE(and, c000, f000);