From patchwork Thu Mar 6 23:32:26 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 327617 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 9AA1E2C00C1 for ; Fri, 7 Mar 2014 10:37:48 +1100 (EST) Received: from localhost ([::1]:32938 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLhrG-0004CG-Ed for incoming@patchwork.ozlabs.org; Thu, 06 Mar 2014 18:37:46 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58337) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLho7-00015S-8f for qemu-devel@nongnu.org; Thu, 06 Mar 2014 18:35:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WLhnw-0003Ge-9q for qemu-devel@nongnu.org; Thu, 06 Mar 2014 18:34:31 -0500 Received: from cantor2.suse.de ([195.135.220.15]:55849 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLhnw-0003Ei-0a; Thu, 06 Mar 2014 18:34:20 -0500 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 06017ACDA; Thu, 6 Mar 2014 23:34:19 +0000 (UTC) From: Alexander Graf To: qemu-devel@nongnu.org Date: Fri, 7 Mar 2014 00:32:26 +0100 Message-Id: <1394148857-19607-20-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1394148857-19607-1-git-send-email-agraf@suse.de> References: <1394148857-19607-1-git-send-email-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 195.135.220.15 Cc: Peter Maydell , Tom Musta , blauwirbel@gmail.com, qemu-ppc@nongnu.org, aliguori@amazon.com, aurelien@aurel32.net Subject: [Qemu-devel] [PULL 019/130] target-ppc: Add VSX ISA2.06 xadd/xsub Instructions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Tom Musta This patch adds the floating point addition and subtraction instructions defined by V2.06 of the PowerPC ISA: xssubdp, xvsubdp and xvsubsp. Signed-off-by: Tom Musta Reviewed-by: Richard Henderson Signed-off-by: Alexander Graf --- target-ppc/fpu_helper.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++ target-ppc/helper.h | 9 +++++++++ target-ppc/translate.c | 18 ++++++++++++++++++ 3 files changed, 77 insertions(+) diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index cea94ac..74c1ce1 100644 --- a/target-ppc/fpu_helper.c +++ b/target-ppc/fpu_helper.c @@ -1758,3 +1758,53 @@ static void putVSR(int n, ppc_vsr_t *vsr, CPUPPCState *env) } #define float64_to_float64(x, env) x + + +/* VSX_ADD_SUB - VSX floating point add/subract + * name - instruction mnemonic + * op - operation (add or sub) + * nels - number of elements (1, 2 or 4) + * tp - type (float32 or float64) + * fld - vsr_t field (f32 or f64) + * sfprf - set FPRF + */ +#define VSX_ADD_SUB(name, op, nels, tp, fld, sfprf) \ +void helper_##name(CPUPPCState *env, uint32_t opcode) \ +{ \ + ppc_vsr_t xt, xa, xb; \ + int i; \ + \ + getVSR(xA(opcode), &xa, env); \ + getVSR(xB(opcode), &xb, env); \ + getVSR(xT(opcode), &xt, env); \ + helper_reset_fpstatus(env); \ + \ + for (i = 0; i < nels; i++) { \ + float_status tstat = env->fp_status; \ + set_float_exception_flags(0, &tstat); \ + xt.fld[i] = tp##_##op(xa.fld[i], xb.fld[i], &tstat); \ + env->fp_status.float_exception_flags |= tstat.float_exception_flags; \ + \ + if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \ + if (tp##_is_infinity(xa.fld[i]) && tp##_is_infinity(xb.fld[i])) {\ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, sfprf); \ + } else if (tp##_is_signaling_nan(xa.fld[i]) || \ + tp##_is_signaling_nan(xb.fld[i])) { \ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \ + } \ + } \ + \ + if (sfprf) { \ + helper_compute_fprf(env, xt.fld[i], sfprf); \ + } \ + } \ + putVSR(xT(opcode), &xt, env); \ + helper_float_check_status(env); \ +} + +VSX_ADD_SUB(xsadddp, add, 1, float64, f64, 1) +VSX_ADD_SUB(xvadddp, add, 2, float64, f64, 0) +VSX_ADD_SUB(xvaddsp, add, 4, float32, f32, 0) +VSX_ADD_SUB(xssubdp, sub, 1, float64, f64, 1) +VSX_ADD_SUB(xvsubdp, sub, 2, float64, f64, 0) +VSX_ADD_SUB(xvsubsp, sub, 4, float32, f32, 0) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 6d282bb..966200d 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -251,6 +251,15 @@ DEF_HELPER_4(vcfsx, void, env, avr, avr, i32) DEF_HELPER_4(vctuxs, void, env, avr, avr, i32) DEF_HELPER_4(vctsxs, void, env, avr, avr, i32) +DEF_HELPER_2(xsadddp, void, env, i32) +DEF_HELPER_2(xssubdp, void, env, i32) + +DEF_HELPER_2(xvadddp, void, env, i32) +DEF_HELPER_2(xvsubdp, void, env, i32) + +DEF_HELPER_2(xvaddsp, void, env, i32) +DEF_HELPER_2(xvsubsp, void, env, i32) + DEF_HELPER_2(efscfsi, i32, env, i32) DEF_HELPER_2(efscfui, i32, env, i32) DEF_HELPER_2(efscfuf, i32, env, i32) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 8c17005..9b4e8b1 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -7304,6 +7304,15 @@ static void gen_##name(DisasContext * ctx) \ tcg_temp_free_i32(opc); \ } +GEN_VSX_HELPER_2(xsadddp, 0x00, 0x04, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xssubdp, 0x00, 0x05, 0, PPC2_VSX) + +GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX) + +GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvsubsp, 0x00, 0x09, 0, PPC2_VSX) + #define VSX_LOGICAL(name, tcg_op) \ static void glue(gen_, name)(DisasContext * ctx) \ { \ @@ -9985,6 +9994,15 @@ GEN_XX2FORM(xvnabssp, 0x12, 0x1A, PPC2_VSX), GEN_XX2FORM(xvnegsp, 0x12, 0x1B, PPC2_VSX), GEN_XX3FORM(xvcpsgnsp, 0x00, 0x1A, PPC2_VSX), +GEN_XX3FORM(xsadddp, 0x00, 0x04, PPC2_VSX), +GEN_XX3FORM(xssubdp, 0x00, 0x05, PPC2_VSX), + +GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX), +GEN_XX3FORM(xvsubdp, 0x00, 0x0D, PPC2_VSX), + +GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX), +GEN_XX3FORM(xvsubsp, 0x00, 0x09, PPC2_VSX), + #undef VSX_LOGICAL #define VSX_LOGICAL(name, opc2, opc3, fl2) \ GEN_XX3FORM(name, opc2, opc3, fl2)