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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id f27sm2967944pgm.60.2019.08.28.12.06.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2019 12:06:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=0cedwX4DK0/sfFpeHztWA8eKQ1Bah4RqDcJrQgER7Gk=; b=werfGZE5VVd/hf8PnlMChhJrB29+q4Dg5aOW4EiOonfGluNy6bFFNS7oMN2twnNGGC /fhlUXOxoDdBVrUtXj1JCJ/ZVuIFsAFyqBU/mM6SkKyZnu624XBLqwwFb1fQPtKdgTOp jYNMHz5VWAfRtEfKxtrN4riKH9IyoOgbI4e/FXjlLJ4+07s0XRCD5K0C8F3j9u1Vb2st SVxpaEu44QU+BiQpBUYLOETZUGHUyRtlEEozAaqeatgz3/lqJibj4FRV5UsQ22bxxRy6 gNligeP1d+8BQgWCCu+A0L7Vv2IIh9zq4ISsb+FGPruyL4JdS/oARqwhfX/IcrGJ1I24 XJFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=0cedwX4DK0/sfFpeHztWA8eKQ1Bah4RqDcJrQgER7Gk=; b=ovqqDp7aUm2sNS6OcCal6mySQVY6YTMzkuftzwlTeAj74TaMpuNex1kA/dB+5bFZ0o 8U7B57ly5/rcfUtZg112+Yn0a+a3Q/5r28ouy7WIEdYSrG6zbG7uEcAwNvj0FijoSEvl U4CoxnHRZlLfX0CwMBDYGNSQ/X6fAznc9NdEgWz7mQ3rXdxt6B1wMN8GyCa9WK/+YHC9 qWXzz/pjBR/IY/1WCe0dQo2NDpZcyTnEKR0PHHEPPyg5pj5f95eQHboM8CVSDjfDOeWf nCc+MNs4RPzYFzq82OF32XbgagoyGHE1U47DQnBPANipaOlUY1Mc/QutqSV2SiFflQ1r 7Meg== X-Gm-Message-State: APjAAAUlZ/72WviwzWb+NCJhnZUzTqD5h4e8KIzy9uDdPs23h+KEnWVf h6qNLYGW9o4ZFAeeKCVuN3OaoX2fBQM= X-Google-Smtp-Source: APXvYqwlz4WhD9g0hENXUdxO+wpnna7i2g8DXaZbbAIvkeq8to1vAhHy6TTpt0bP+LDY/qfVoA8u6Q== X-Received: by 2002:a63:f401:: with SMTP id g1mr4988782pgi.314.1567019178379; Wed, 28 Aug 2019 12:06:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 28 Aug 2019 12:04:49 -0700 Message-Id: <20190828190456.30315-63-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190828190456.30315-1-richard.henderson@linaro.org> References: <20190828190456.30315-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::541 Subject: [Qemu-devel] [PATCH v3 62/69] target/arm: Convert T16, Conditional branches, Supervisor call 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: peter.maydell@linaro.org, qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/translate.c | 26 +++----------------------- target/arm/t16.decode | 12 ++++++++++++ 2 files changed, 15 insertions(+), 23 deletions(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index 5ee4dfe3a2..854c9fe10d 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -10698,7 +10698,7 @@ static void disas_thumb2_insn(DisasContext *s, uint= 32_t insn) =20 static void disas_thumb_insn(DisasContext *s, uint32_t insn) { - uint32_t val, op, rm, rd, shift, cond; + uint32_t val, op, rm, rd, shift; int32_t offset; TCGv_i32 tmp; TCGv_i32 tmp2; @@ -10837,28 +10837,8 @@ static void disas_thumb_insn(DisasContext *s, uint= 32_t insn) } break; =20 - case 13: - /* conditional branch or swi */ - cond =3D (insn >> 8) & 0xf; - if (cond =3D=3D 0xe) - goto undef; - - if (cond =3D=3D 0xf) { - /* swi */ - gen_set_pc_im(s, s->base.pc_next); - s->svc_imm =3D extract32(insn, 0, 8); - s->base.is_jmp =3D DISAS_SWI; - break; - } - /* generate a conditional jump to next instruction */ - arm_skip_unless(s, cond); - - /* jump to the offset */ - val =3D read_pc(s); - offset =3D ((int32_t)insn << 24) >> 24; - val +=3D offset << 1; - gen_jmp(s, val); - break; + case 13: /* conditional branch or swi, in decodetree */ + goto illegal_op; =20 case 14: if (insn & (1 << 11)) { diff --git a/target/arm/t16.decode b/target/arm/t16.decode index 55fadce223..cbc64f4e48 100644 --- a/target/arm/t16.decode +++ b/target/arm/t16.decode @@ -28,11 +28,13 @@ &rr !extern rd rm &ri !extern rd imm &r !extern rm +&i !extern imm &ldst_rr !extern p w u rn rt rm shimm shtype &ldst_ri !extern p w u rn rt imm &ldst_block !extern rn i b u w list &setend !extern E &cps !extern mode imod M A I F +&ci !extern cond imm =20 # Set S if the instruction is outside of an IT block. %s !function=3Dt16_setflags @@ -231,3 +233,13 @@ STM 1011 010 ......... \ &ldst_block i=3D0 b=3D1 u=3D0 w=3D1 rn=3D13 list=3D%push_l= ist LDM_t16 1011 110 ......... \ &ldst_block i=3D1 b=3D0 u=3D0 w=3D1 rn=3D13 list=3D%pop_li= st + +# Conditional branches, Supervisor call + +%imm8_0x2 0:s8 !function=3Dtimes_2 + +{ + UDF 1101 1110 ---- ---- + SVC 1101 1111 imm:8 &i + B_cond_thumb 1101 cond:4 ........ &ci imm=3D%imm8_0x2 +} --=20 2.17.1