From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 569AFC433EF for ; Wed, 16 Mar 2022 06:09:39 +0000 (UTC) Received: from localhost ([::1]:49638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nUMqo-0005hu-Fn for qemu-devel@archiver.kernel.org; Wed, 16 Mar 2022 02:09:38 -0400 Received: from eggs.gnu.org ([209.51.188.92]:58870) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nUMgQ-0002UE-MT for qemu-devel@nongnu.org; Wed, 16 Mar 2022 01:58:54 -0400 Received: from [2607:f8b0:4864:20::102d] (port=40636 helo=mail-pj1-x102d.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nUMgO-0006Su-NO for qemu-devel@nongnu.org; Wed, 16 Mar 2022 01:58:54 -0400 Received: by mail-pj1-x102d.google.com with SMTP id mv2-20020a17090b198200b001c65bae5744so428416pjb.5 for ; Tue, 15 Mar 2022 22:58:52 -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 :mime-version:content-transfer-encoding; bh=Pb8IOGOu4mKxNeiHFDXVhpl0044jfTtYIWIF2tDX6C4=; b=HKx2I766vKlV9VpBe7fFijoR9ZNAUiCzQmGUUlfp5Cuesy/M2qzsaczITf5G9GqgZ3 pTrgFE3uxhxgbxymrfBgkot89bKvLU97X85efbXqgdi7W6d+qzWkn7gWFg8UnA8fYb+T 4Xj8zU8Zi77gSPhDcwe0ckSY6R+GddelwItHWi2unQftnl+ukVknW6DQ1B7VVwv+EFIx 4jcNWUyGz2VqBs+htXhxyE9tTKg21BjPqwL+zm2kmI9ianNAOPe9pR49GuH4pFt+ivWU v7F50p2TlymCgRuikV/AG1p9hHLyTaX4EfNUbDkJf6W+NevluglBykf+03fx0Hjbed15 kOvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Pb8IOGOu4mKxNeiHFDXVhpl0044jfTtYIWIF2tDX6C4=; b=xzKLSV6uDDU8JOTfsyGbx6pJ1anf482DHYZiXgD6HNuvWtJdq6S6vFuDx0zX+vrPTd c7+6C7kLYqm9yvofNM+D630BlIEmHwWGZ60AxanH9sxx1tZfomRvz55VnI1usjwTWUvG xeVh6B0sCduObpQYMBwhzGQw9kTe4XS6GU6rgkbtLRlZoB+6LTtic4aO4T7fUjc5r3wX LodPYpHdbof4lcHCN8WMldKmf4hQCBrwWN1Rykp9y4ZFSeTMvxxBCVc+4hMqzXNFkwne W4DbctmaxMkCfHZtkbCEbQ7xGoYWLh+1y3MB1fpOeIXE+yi5tjz3KKyiPWNDSnUvVfwt yOWw== X-Gm-Message-State: AOAM532dGPc9LA9Hq0/Mf8FjsY3HzsfOnUfzFgvBP3ljPXoytrp3ghFj ErLWuLwxg4ErObs3K/7HUa7aXEARM/F83w== X-Google-Smtp-Source: ABdhPJwv70pgHUr10wHF475FLZtmMzq4N5ACKVH8OdCSYi593YlDoW9W+EdiF3laG6nNhxzlRpxlIg== X-Received: by 2002:a17:902:8691:b0:153:6f49:1a23 with SMTP id g17-20020a170902869100b001536f491a23mr13741204plo.9.1647410331406; Tue, 15 Mar 2022 22:58:51 -0700 (PDT) Received: from localhost.localdomain (174-21-142-130.tukw.qwest.net. [174.21.142.130]) by smtp.gmail.com with ESMTPSA id i24-20020a056a00225800b004f6edabc9f4sm1236290pfu.72.2022.03.15.22.58.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Mar 2022 22:58:51 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 10/17] target/m68k: Implement TRAPcc Date: Tue, 15 Mar 2022 22:58:33 -0700 Message-Id: <20220316055840.727571-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220316055840.727571-1-richard.henderson@linaro.org> References: <20220316055840.727571-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::102d (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::102d; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102d.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@vivier.eu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Resolves: https://gitlab.com/qemu-project/qemu/-/issues/754 Signed-off-by: Richard Henderson --- target/m68k/cpu.h | 2 ++ linux-user/m68k/cpu_loop.c | 1 + target/m68k/cpu.c | 1 + target/m68k/op_helper.c | 6 +---- target/m68k/translate.c | 49 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 54 insertions(+), 5 deletions(-) diff --git a/target/m68k/cpu.h b/target/m68k/cpu.h index 5469d5dace..1901a35256 100644 --- a/target/m68k/cpu.h +++ b/target/m68k/cpu.h @@ -533,6 +533,8 @@ enum m68k_features { M68K_FEATURE_MOVEC, /* Unaligned data accesses (680[2346]0) */ M68K_FEATURE_UNALIGNED_DATA, + /* TRAPcc insn. (680[2346]0, and CPU32) */ + M68K_FEATURE_TRAPCC, }; static inline int m68k_feature(CPUM68KState *env, int feature) diff --git a/linux-user/m68k/cpu_loop.c b/linux-user/m68k/cpu_loop.c index 9b9aabccc6..828dac5e50 100644 --- a/linux-user/m68k/cpu_loop.c +++ b/linux-user/m68k/cpu_loop.c @@ -49,6 +49,7 @@ void cpu_loop(CPUM68KState *env) force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPN, env->pc); break; case EXCP_CHK: + case EXCP_TRAPCC: force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTOVF, env->mmu.ar); break; case EXCP_DIV0: diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index c7aeb7da9c..5f778773d1 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -162,6 +162,7 @@ static void m68020_cpu_initfn(Object *obj) m68k_set_feature(env, M68K_FEATURE_CHK2); m68k_set_feature(env, M68K_FEATURE_MSP); m68k_set_feature(env, M68K_FEATURE_UNALIGNED_DATA); + m68k_set_feature(env, M68K_FEATURE_TRAPCC); } /* diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c index 6aebf9d737..0de4743d01 100644 --- a/target/m68k/op_helper.c +++ b/target/m68k/op_helper.c @@ -399,14 +399,10 @@ static void m68k_interrupt_all(CPUM68KState *env, int is_hw) do_stack_frame(env, &sp, 2, oldsr, 0, env->pc); break; - case EXCP_TRAPCC: - /* FIXME: addr is not only env->pc */ - do_stack_frame(env, &sp, 2, oldsr, env->pc, env->pc); - break; - case EXCP_CHK: case EXCP_DIV0: case EXCP_TRACE: + case EXCP_TRAPCC: do_stack_frame(env, &sp, 2, oldsr, env->mmu.ar, env->pc); break; diff --git a/target/m68k/translate.c b/target/m68k/translate.c index 0bfc1a8ddf..e15b317ddf 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -4879,6 +4879,54 @@ DISAS_INSN(trap) gen_exception(s, s->pc, EXCP_TRAP0 + (insn & 0xf)); } +static void do_trapcc(DisasContext *s, DisasCompare *c) +{ + if (c->tcond != TCG_COND_NEVER) { + TCGLabel *over = NULL; + + update_cc_op(s); + + if (c->tcond != TCG_COND_ALWAYS) { + /* Jump over if !c. */ + over = gen_new_label(); + tcg_gen_brcond_i32(tcg_invert_cond(c->tcond), c->v1, c->v2, over); + } + + tcg_gen_movi_i32(QREG_PC, s->pc); + gen_raise_exception_format2(s, EXCP_TRAPCC, s->base.pc_next); + + if (over != NULL) { + gen_set_label(over); + s->base.is_jmp = DISAS_NEXT; + } + } + free_cond(c); +} + +DISAS_INSN(trapcc) +{ + DisasCompare c; + + /* Consume and discard the immediate operand. */ + switch (extract32(insn, 0, 3)) { + case 2: /* trapcc.w */ + (void)read_im16(env, s); + break; + case 3: /* trapcc.l */ + (void)read_im32(env, s); + break; + case 4: /* trapcc (no operand) */ + break; + default: + /* Illegal insn */ + disas_undef(env, s, insn); + return; + } + + gen_cc_cond(&c, s, extract32(insn, 8, 4)); + do_trapcc(s, &c); +} + static void gen_load_fcr(DisasContext *s, TCGv res, int reg) { switch (reg) { @@ -6050,6 +6098,7 @@ void register_m68k_insns (CPUM68KState *env) INSN(scc, 50c0, f0f8, CF_ISA_A); /* Scc.B Dx */ INSN(scc, 50c0, f0c0, M68000); /* Scc.B */ INSN(dbcc, 50c8, f0f8, M68000); + INSN(trapcc, 50f8, f0f8, TRAPCC); INSN(tpf, 51f8, fff8, CF_ISA_A); /* Branch instructions. */ -- 2.25.1