From nobody Wed Oct 1 05:39:47 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 158151321146933.68217832616733; Wed, 12 Feb 2020 05:13:31 -0800 (PST) Received: from localhost ([::1]:37488 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j1rpa-0003Uc-8G for importer@patchew.org; Wed, 12 Feb 2020 08:13:30 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33363) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j1rgG-0004co-Hu for qemu-devel@nongnu.org; Wed, 12 Feb 2020 08:03:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j1rfs-0008Au-0V for qemu-devel@nongnu.org; Wed, 12 Feb 2020 08:03:52 -0500 Received: from mail03.asahi-net.or.jp ([202.224.55.15]:40889) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1j1rfr-000890-Jp for qemu-devel@nongnu.org; Wed, 12 Feb 2020 08:03:27 -0500 Received: from h61-195-96-97.vps.ablenet.jp (h61-195-96-97.ablenetvps.ne.jp [61.195.96.97]) (Authenticated sender: PQ4Y-STU) by mail03.asahi-net.or.jp (Postfix) with ESMTPA id 40C59DCA87; Wed, 12 Feb 2020 22:03:22 +0900 (JST) Received: from yo-satoh-debian.localdomain (ae231051.dynamic.ppp.asahi-net.or.jp [14.3.231.51]) by h61-195-96-97.vps.ablenet.jp (Postfix) with ESMTPSA id 0CC8324008E; Wed, 12 Feb 2020 22:03:22 +0900 (JST) From: Yoshinori Sato To: qemu-devel@nongnu.org Subject: [PATCH v30 12/22] target/rx: Collect all bytes during disassembly Date: Wed, 12 Feb 2020 22:03:01 +0900 Message-Id: <20200212130311.127515-13-ysato@users.sourceforge.jp> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200212130311.127515-1-ysato@users.sourceforge.jp> References: <20200212130311.127515-1-ysato@users.sourceforge.jp> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 202.224.55.15 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: philmd@redhat.com, Richard Henderson , Yoshinori Sato Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Richard Henderson Collected, to be used in the next patch. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Yoshinori Sato Signed-off-by: Yoshinori Sato Message-Id: <20190607091116.49044-23-ysato@users.sourceforge.jp> Tested-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- target/rx/disas.c | 62 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 42 insertions(+), 20 deletions(-) diff --git a/target/rx/disas.c b/target/rx/disas.c index ebc1a44249..5a32a87534 100644 --- a/target/rx/disas.c +++ b/target/rx/disas.c @@ -25,43 +25,59 @@ typedef struct DisasContext { disassemble_info *dis; uint32_t addr; uint32_t pc; + uint8_t len; + uint8_t bytes[8]; } DisasContext; =20 =20 static uint32_t decode_load_bytes(DisasContext *ctx, uint32_t insn, - int i, int n) + int i, int n) { - bfd_byte buf; + uint32_t addr =3D ctx->addr; + + g_assert(ctx->len =3D=3D i); + g_assert(n <=3D ARRAY_SIZE(ctx->bytes)); + while (++i <=3D n) { - ctx->dis->read_memory_func(ctx->addr++, &buf, 1, ctx->dis); - insn |=3D buf << (32 - i * 8); + ctx->dis->read_memory_func(addr++, &ctx->bytes[i - 1], 1, ctx->dis= ); + insn |=3D ctx->bytes[i - 1] << (32 - i * 8); } + ctx->addr =3D addr; + ctx->len =3D n; + return insn; } =20 static int32_t li(DisasContext *ctx, int sz) { - int32_t addr; - bfd_byte buf[4]; - addr =3D ctx->addr; + uint32_t addr =3D ctx->addr; + uintptr_t len =3D ctx->len; =20 switch (sz) { case 1: + g_assert(len + 1 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 1; - ctx->dis->read_memory_func(addr, buf, 1, ctx->dis); - return (int8_t)buf[0]; + ctx->len +=3D 1; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 1, ctx->dis); + return (int8_t)ctx->bytes[len]; case 2: + g_assert(len + 2 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 2; - ctx->dis->read_memory_func(addr, buf, 2, ctx->dis); - return ldsw_le_p(buf); + ctx->len +=3D 2; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 2, ctx->dis); + return ldsw_le_p(ctx->bytes + len); case 3: + g_assert(len + 3 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 3; - ctx->dis->read_memory_func(addr, buf, 3, ctx->dis); - return (int8_t)buf[2] << 16 | lduw_le_p(buf); + ctx->len +=3D 3; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 3, ctx->dis); + return (int8_t)ctx->bytes[len + 2] << 16 | lduw_le_p(ctx->bytes + = len); case 0: + g_assert(len + 4 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 4; - ctx->dis->read_memory_func(addr, buf, 4, ctx->dis); - return ldl_le_p(buf); + ctx->len +=3D 4; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 4, ctx->dis); + return ldl_le_p(ctx->bytes + len); default: g_assert_not_reached(); } @@ -110,7 +126,7 @@ static const char psw[] =3D { static void rx_index_addr(DisasContext *ctx, char out[8], int ld, int mi) { uint32_t addr =3D ctx->addr; - uint8_t buf[2]; + uintptr_t len =3D ctx->len; uint16_t dsp; =20 switch (ld) { @@ -119,14 +135,18 @@ static void rx_index_addr(DisasContext *ctx, char out= [8], int ld, int mi) out[0] =3D '\0'; return; case 1: + g_assert(len + 1 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 1; - ctx->dis->read_memory_func(addr, buf, 1, ctx->dis); - dsp =3D buf[0]; + ctx->len +=3D 1; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 1, ctx->dis); + dsp =3D ctx->bytes[len]; break; case 2: + g_assert(len + 2 <=3D ARRAY_SIZE(ctx->bytes)); ctx->addr +=3D 2; - ctx->dis->read_memory_func(addr, buf, 2, ctx->dis); - dsp =3D lduw_le_p(buf); + ctx->len +=3D 2; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 2, ctx->dis); + dsp =3D lduw_le_p(ctx->bytes + len); break; default: g_assert_not_reached(); @@ -1392,8 +1412,10 @@ int print_insn_rx(bfd_vma addr, disassemble_info *di= s) DisasContext ctx; uint32_t insn; int i; + ctx.dis =3D dis; ctx.pc =3D ctx.addr =3D addr; + ctx.len =3D 0; =20 insn =3D decode_load(&ctx); if (!decode(&ctx, insn)) { --=20 2.20.1