From patchwork Thu Jan 12 20:18:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 714642 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 3tzxzD06Lrz9t1L for ; Fri, 13 Jan 2017 07:23:19 +1100 (AEDT) Received: from localhost ([::1]:36508 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRlu0-0000MO-HX for incoming@patchwork.ozlabs.org; Thu, 12 Jan 2017 15:23:16 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46669) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRlpG-0003xh-Im for qemu-devel@nongnu.org; Thu, 12 Jan 2017 15:18:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cRlpE-0004vm-7w for qemu-devel@nongnu.org; Thu, 12 Jan 2017 15:18:22 -0500 Received: from mout.kundenserver.de ([217.72.192.73]:54256) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cRlpD-0004uh-Tw for qemu-devel@nongnu.org; Thu, 12 Jan 2017 15:18:20 -0500 Received: from Quad.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue102 [212.227.15.183]) with ESMTPSA (Nemesis) id 0LlWdD-1cyu7K1C5f-00bHPQ; Thu, 12 Jan 2017 21:18:09 +0100 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Thu, 12 Jan 2017 21:18:04 +0100 Message-Id: <1484252284-29291-6-git-send-email-laurent@vivier.eu> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1484252284-29291-1-git-send-email-laurent@vivier.eu> References: <1484252284-29291-1-git-send-email-laurent@vivier.eu> X-Provags-ID: V03:K0:US2xio1BjEweS2w+mL799VzKG3XoalvRP5PGJecMLXRTJoXYVWk fJ82JtINdDLLjr8pxoxo9FrQq9uDdAfnf8ECkJc52wpt6M83DdcFLzPTajN+CJLBRtY8vmo wtxcS/mWQ44aa3LwEJuZX0T3ooNJRvaDQVpCv+QqRC0h4m2OIrhxMPue2wy/z/MvTMw3ePN Qf8GSr2O3mv/eckXZIPjg== X-UI-Out-Filterresults: notjunk:1; V01:K0:rOdbPcfFYrk=:jPggPlmVNdhJVlkx1RDn1t 2odAfwcNMMA0nrPuf/lCFiSCCsNhLge2xRmLXgUWCjxV9DRlIeiohBbwqVOlavBvcGVo0Lagy J9LA+uJvGyNOdgxsEAxTzcaNRhILZ2tgtB/Z+9uUj5KNq+/QpySslqxtuIdm5ryeG4Cbk3ey4 sC+d+6XrifYHgiHTTU4kSY7fzJq50ZpIbGLiaKkFBa6UdOyy8OT4vy6bOb58k3fywfFxPIiTU X1UxtjhUVPpJ7lvOBXWpuR4GseIL2grGweu5Q+mFBULdiwZ5WjHSTH5coTMj6QPKRVn245x2Z UaFiTyF5DLYB5eYp6srnu667qSdyw43oa38gtur5BNYs79cdXpFmV69cI1SLJrXNv5xZf/Z0n KDZRtfLmUKNsuEkDSbsRAODwsbOEZW3Px+M1TFvRuKdaC3K9kQfcARI6siITc6gyTlK+Doc7q EB6SAfYwGTnPypCN8UWOUKzY5O8S9vI+3LvXkbFSK6LD5pgwaaJrI8dRmmtPaFKcC7FOhEoD3 vfbihcjwubmUUwOKvlIPyBCFV/GUG/HVf2vmhC7kIhdeA/3NU9ooP0R59eDcCoI0MuldPx5iP 97euzCc//h5YFlXuL3cvhvvHR9AIYyo41q9hUsPypW4VYxrf2HpvuC61NxswyMdZdcV0VklNx Y2gH45dNqnTRMce2mk0FldMgF7aV26AGvY0Hl232SwhOMzJlRBrCwL3tI+DqtLU/Ertg= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 217.72.192.73 Subject: [Qemu-devel] [PATCH 5/5] target-m68k: increment/decrement with SP 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 , rth@twiddle.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Address Register indirect With postincrement: When using the stack pointer (A7) with byte size data, the register is incremented by two. Address Register indirect With predecrement: When using the stack pointer (A7) with byte size data, the register is decremented by two. Signed-off-by: Laurent Vivier --- target/m68k/translate.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/target/m68k/translate.c b/target/m68k/translate.c index cf5d8dd..c83d902 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -725,7 +725,10 @@ static TCGv gen_lea_mode(CPUM68KState *env, DisasContext *s, } reg = get_areg(s, reg0); tmp = tcg_temp_new(); - tcg_gen_subi_i32(tmp, reg, opsize_bytes(opsize)); + tcg_gen_subi_i32(tmp, reg, + reg0 == 7 && opsize == OS_BYTE + ? 2 + : opsize_bytes(opsize)); return tmp; case 5: /* Indirect displacement. */ reg = get_areg(s, reg0); @@ -801,7 +804,10 @@ static TCGv gen_ea_mode(CPUM68KState *env, DisasContext *s, int mode, int reg0, result = gen_ldst(s, opsize, reg, val, what); if (what == EA_STORE || !addrp) { TCGv tmp = tcg_temp_new(); - tcg_gen_addi_i32(tmp, reg, opsize_bytes(opsize)); + tcg_gen_addi_i32(tmp, reg, + reg0 == 7 && opsize == OS_BYTE + ? 2 + : opsize_bytes(opsize)); delay_set_areg(s, reg0, tmp, true); } return result;