From patchwork Tue Jul 18 21:50:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 790650 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 3xBvSm0WXDz9t16 for ; Wed, 19 Jul 2017 08:08:56 +1000 (AEST) Received: from localhost ([::1]:58820 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXafl-0004DN-IM for incoming@patchwork.ozlabs.org; Tue, 18 Jul 2017 18:08:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48698) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXaPn-0005mC-IY for qemu-devel@nongnu.org; Tue, 18 Jul 2017 17:52:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dXaPk-00040h-He for qemu-devel@nongnu.org; Tue, 18 Jul 2017 17:52:23 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:100::1]:48500) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dXaOY-0003VD-25 for qemu-devel@nongnu.org; Tue, 18 Jul 2017 17:52:20 -0400 Received: from [2001:bc8:30d7:120:9bb5:8936:7e6a:9e36] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1dXaOU-0000K5-A5; Tue, 18 Jul 2017 23:51:02 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.89) (envelope-from ) id 1dXaOQ-00013E-3r; Tue, 18 Jul 2017 23:50:58 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Tue, 18 Jul 2017 23:50:39 +0200 Message-Id: <20170718215050.3812-21-aurelien@aurel32.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170718215050.3812-1-aurelien@aurel32.net> References: <20170718215050.3812-1-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:bc8:30d7:100::1 Subject: [Qemu-devel] [PULL 20/31] target/sh4: Load/store Dr as 64-bit quantities 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: Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson This enforces proper alignment and makes the register update more natural. Note that there is a more serious bug fix for fmov {DX}Rn,@(R0,Rn) to use a store instead of a load. Signed-off-by: Richard Henderson Message-Id: <20170718200255.31647-17-rth@twiddle.net> Signed-off-by: Aurelien Jarno --- target/sh4/translate.c | 75 ++++++++++++++++++++++++-------------------------- 1 file changed, 36 insertions(+), 39 deletions(-) diff --git a/target/sh4/translate.c b/target/sh4/translate.c index 40724819e5..7dfe23d1f4 100644 --- a/target/sh4/translate.c +++ b/target/sh4/translate.c @@ -992,12 +992,10 @@ static void _decode_opc(DisasContext * ctx) case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */ CHECK_FPU_ENABLED if (ctx->tbflags & FPSCR_SZ) { - TCGv addr_hi = tcg_temp_new(); - int fr = XHACK(B7_4); - tcg_gen_addi_i32(addr_hi, REG(B11_8), 4); - tcg_gen_qemu_st_i32(FREG(fr), REG(B11_8), ctx->memidx, MO_TEUL); - tcg_gen_qemu_st_i32(FREG(fr + 1), addr_hi, ctx->memidx, MO_TEUL); - tcg_temp_free(addr_hi); + TCGv_i64 fp = tcg_temp_new_i64(); + gen_load_fpr64(ctx, fp, XHACK(B7_4)); + tcg_gen_qemu_st_i64(fp, REG(B11_8), ctx->memidx, MO_TEQ); + tcg_temp_free_i64(fp); } else { tcg_gen_qemu_st_i32(FREG(B7_4), REG(B11_8), ctx->memidx, MO_TEUL); } @@ -1005,12 +1003,10 @@ static void _decode_opc(DisasContext * ctx) case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */ CHECK_FPU_ENABLED if (ctx->tbflags & FPSCR_SZ) { - TCGv addr_hi = tcg_temp_new(); - int fr = XHACK(B11_8); - tcg_gen_addi_i32(addr_hi, REG(B7_4), 4); - tcg_gen_qemu_ld_i32(FREG(fr), REG(B7_4), ctx->memidx, MO_TEUL); - tcg_gen_qemu_ld_i32(FREG(fr + 1), addr_hi, ctx->memidx, MO_TEUL); - tcg_temp_free(addr_hi); + TCGv_i64 fp = tcg_temp_new_i64(); + tcg_gen_qemu_ld_i64(fp, REG(B7_4), ctx->memidx, MO_TEQ); + gen_store_fpr64(ctx, fp, XHACK(B11_8)); + tcg_temp_free_i64(fp); } else { tcg_gen_qemu_ld_i32(FREG(B11_8), REG(B7_4), ctx->memidx, MO_TEUL); } @@ -1018,13 +1014,11 @@ static void _decode_opc(DisasContext * ctx) case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */ CHECK_FPU_ENABLED if (ctx->tbflags & FPSCR_SZ) { - TCGv addr_hi = tcg_temp_new(); - int fr = XHACK(B11_8); - tcg_gen_addi_i32(addr_hi, REG(B7_4), 4); - tcg_gen_qemu_ld_i32(FREG(fr), REG(B7_4), ctx->memidx, MO_TEUL); - tcg_gen_qemu_ld_i32(FREG(fr + 1), addr_hi, ctx->memidx, MO_TEUL); - tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8); - tcg_temp_free(addr_hi); + TCGv_i64 fp = tcg_temp_new_i64(); + tcg_gen_qemu_ld_i64(fp, REG(B7_4), ctx->memidx, MO_TEQ); + gen_store_fpr64(ctx, fp, XHACK(B11_8)); + tcg_temp_free_i64(fp); + tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8); } else { tcg_gen_qemu_ld_i32(FREG(B11_8), REG(B7_4), ctx->memidx, MO_TEUL); tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4); @@ -1032,18 +1026,21 @@ static void _decode_opc(DisasContext * ctx) return; case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */ CHECK_FPU_ENABLED - TCGv addr = tcg_temp_new_i32(); - tcg_gen_subi_i32(addr, REG(B11_8), 4); - if (ctx->tbflags & FPSCR_SZ) { - int fr = XHACK(B7_4); - tcg_gen_qemu_st_i32(FREG(fr + 1), addr, ctx->memidx, MO_TEUL); - tcg_gen_subi_i32(addr, addr, 4); - tcg_gen_qemu_st_i32(FREG(fr), addr, ctx->memidx, MO_TEUL); - } else { - tcg_gen_qemu_st_i32(FREG(B7_4), addr, ctx->memidx, MO_TEUL); - } - tcg_gen_mov_i32(REG(B11_8), addr); - tcg_temp_free(addr); + { + TCGv addr = tcg_temp_new_i32(); + if (ctx->tbflags & FPSCR_SZ) { + TCGv_i64 fp = tcg_temp_new_i64(); + gen_load_fpr64(ctx, fp, XHACK(B7_4)); + tcg_gen_subi_i32(addr, REG(B11_8), 8); + tcg_gen_qemu_st_i64(fp, addr, ctx->memidx, MO_TEQ); + tcg_temp_free_i64(fp); + } else { + tcg_gen_subi_i32(addr, REG(B11_8), 4); + tcg_gen_qemu_st_i32(FREG(B7_4), addr, ctx->memidx, MO_TEUL); + } + tcg_gen_mov_i32(REG(B11_8), addr); + tcg_temp_free(addr); + } return; case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */ CHECK_FPU_ENABLED @@ -1051,10 +1048,10 @@ static void _decode_opc(DisasContext * ctx) TCGv addr = tcg_temp_new_i32(); tcg_gen_add_i32(addr, REG(B7_4), REG(0)); if (ctx->tbflags & FPSCR_SZ) { - int fr = XHACK(B11_8); - tcg_gen_qemu_ld_i32(FREG(fr), addr, ctx->memidx, MO_TEUL); - tcg_gen_addi_i32(addr, addr, 4); - tcg_gen_qemu_ld_i32(FREG(fr + 1), addr, ctx->memidx, MO_TEUL); + TCGv_i64 fp = tcg_temp_new_i64(); + tcg_gen_qemu_ld_i64(fp, addr, ctx->memidx, MO_TEQ); + gen_store_fpr64(ctx, fp, XHACK(B11_8)); + tcg_temp_free_i64(fp); } else { tcg_gen_qemu_ld_i32(FREG(B11_8), addr, ctx->memidx, MO_TEUL); } @@ -1067,10 +1064,10 @@ static void _decode_opc(DisasContext * ctx) TCGv addr = tcg_temp_new(); tcg_gen_add_i32(addr, REG(B11_8), REG(0)); if (ctx->tbflags & FPSCR_SZ) { - int fr = XHACK(B7_4); - tcg_gen_qemu_ld_i32(FREG(fr), addr, ctx->memidx, MO_TEUL); - tcg_gen_addi_i32(addr, addr, 4); - tcg_gen_qemu_ld_i32(FREG(fr + 1), addr, ctx->memidx, MO_TEUL); + TCGv_i64 fp = tcg_temp_new_i64(); + gen_load_fpr64(ctx, fp, XHACK(B7_4)); + tcg_gen_qemu_st_i64(fp, addr, ctx->memidx, MO_TEQ); + tcg_temp_free_i64(fp); } else { tcg_gen_qemu_st_i32(FREG(B7_4), addr, ctx->memidx, MO_TEUL); }