From patchwork Mon Oct 31 09:50:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 689237 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 3t6qWd1Sd0z9t17 for ; Mon, 31 Oct 2016 20:56:29 +1100 (AEDT) Received: from localhost ([::1]:34284 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c19KM-00019G-Ft for incoming@patchwork.ozlabs.org; Mon, 31 Oct 2016 05:56:26 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57197) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c19En-0005Eb-I6 for qemu-devel@nongnu.org; Mon, 31 Oct 2016 05:50:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c19Ej-0005hO-M4 for qemu-devel@nongnu.org; Mon, 31 Oct 2016 05:50:41 -0400 Received: from mout.kundenserver.de ([217.72.192.73]:50046) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c19Ej-0005eQ-Ch for qemu-devel@nongnu.org; Mon, 31 Oct 2016 05:50:37 -0400 Received: from Quad.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue103) with ESMTPSA (Nemesis) id 0MRRcG-1cTrDm071E-00SjRE; Mon, 31 Oct 2016 10:50:34 +0100 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Mon, 31 Oct 2016 10:50:30 +0100 Message-Id: <1477907431-10008-2-git-send-email-laurent@vivier.eu> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477907431-10008-1-git-send-email-laurent@vivier.eu> References: <1477907431-10008-1-git-send-email-laurent@vivier.eu> X-Provags-ID: V03:K0:7jwCnWyOcuIJt5IfBhInqPoxh4zBM8YdACnpnaPNygpIyAZX3Py gtNINLqPzZOaHCPsYzO9fAaX6HWr1Gm+CWn/6VqfQFoGo1ha+eqE8J8QagDJXfxoixGGAGF r4wa2hcmpubdOaDDMNWAoL4GnJdJ/em6oRxvAv+h09dtdZaqn0zKx5T2JHohmIAhDgFfw6u xn92V82NheHuf5V2lMKZQ== X-UI-Out-Filterresults: notjunk:1; V01:K0:wSEKjfCw7Fc=:pEgXfgJN2e7J6V5NyQlJ4N sebi9Og624FfDWvcfOTN2iBz/971VyV9yBg5MSpK3w0QOhNcHUN+bN77b1RRR/VYCcwYSZgDA DMDiFFVEiJBwBtChhSgpYEFzRjU8rZpUFTqb6eQJdvoG3ohKaxfejU7NzNrLx2k6zQJHVz4ma ttwHMXRCY/byoIhd4Wc9s1PI6IYHsQJiAt7tmyxum6dvpf5E2fAmDKdDJ8GqBX9zBQPlKkggw VuuxuZP+Y7WOqWM3lpqy0/hM9vE80G6ZmuFOsJe92t8o5Le0ReUe+YrHuMsdIoZcHlME7ggLx 6ByDFsGraZLbMRyET1e/lir4JSZ/vqKByjuE7oz9QK7LCtvnxPSKtsvpCULBElDGh4CCdkHrd Nh5lJl98xZlJE0YI0BXH9sWw4ahYC3yH/5zvTmyhjYOwoJuugMZPbK1UqsEyXZouqS0afJJty Rerx2TfNnLYkdlVEFMfvXXqnk2WYG3yuD1banpQu/bqk0Np3lFS5XlPgp9/BF/+1pG25Jy2po 5slxnpr85vQ0jw/mNiIBb6v7VSH1oR5trsiY/694274SDNyztPuC4ahpwGmcy/4IqiLxqBJ0o zOaJp+qAQOX70Aq0cEAfPoDPj9DTrpT5BnEp1ehmh3fNoa75Tbz0/0IXzaKaWbEQDL0/m+rRa i/lgFn/2CXuyZv9kau/l5rpef/nwdnL1Qy09U9XJLLJNUTpZejvp1cif82/JZJJA726E= 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] [PULL 1/2] 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 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);