From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LnjfZ-0003rP-Uw for qemu-devel@nongnu.org; Sat, 28 Mar 2009 21:18:37 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LnjfZ-0003r5-Gt for qemu-devel@nongnu.org; Sat, 28 Mar 2009 21:18:37 -0400 Received: from [199.232.76.173] (port=37022 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LnjfZ-0003qx-0J for qemu-devel@nongnu.org; Sat, 28 Mar 2009 21:18:37 -0400 Received: from savannah.gnu.org ([199.232.41.3]:40387 helo=sv.gnu.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LnjfY-0003C8-MS for qemu-devel@nongnu.org; Sat, 28 Mar 2009 21:18:36 -0400 Received: from cvs.savannah.gnu.org ([199.232.41.69]) by sv.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1LnjfX-00083c-SA for qemu-devel@nongnu.org; Sun, 29 Mar 2009 01:18:36 +0000 Received: from aurel32 by cvs.savannah.gnu.org with local (Exim 4.69) (envelope-from ) id 1LnjfX-00083U-9m for qemu-devel@nongnu.org; Sun, 29 Mar 2009 01:18:35 +0000 MIME-Version: 1.0 Errors-To: aurel32 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Aurelien Jarno Message-Id: Date: Sun, 29 Mar 2009 01:18:35 +0000 Subject: [Qemu-devel] [6934] target-mips: gen_bshfl() Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Revision: 6934 http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6934 Author: aurel32 Date: 2009-03-29 01:18:34 +0000 (Sun, 29 Mar 2009) Log Message: ----------- target-mips: gen_bshfl() Signed-off-by: Aurelien Jarno Modified Paths: -------------- trunk/target-mips/translate.c Modified: trunk/target-mips/translate.c =================================================================== --- trunk/target-mips/translate.c 2009-03-29 01:18:24 UTC (rev 6933) +++ trunk/target-mips/translate.c 2009-03-29 01:18:34 UTC (rev 6934) @@ -2619,56 +2619,72 @@ static void gen_bshfl (DisasContext *ctx, uint32_t op2, int rt, int rd) { - TCGv t0 = tcg_temp_new(); - TCGv t1 = tcg_temp_new(); + TCGv t0; - gen_load_gpr(t1, rt); + if (rd == 0) { + /* If no destination, treat it as a NOP. */ + MIPS_DEBUG("NOP"); + return; + } + + t0 = tcg_temp_new(); + gen_load_gpr(t0, rt); switch (op2) { case OPC_WSBH: - tcg_gen_shri_tl(t0, t1, 8); - tcg_gen_andi_tl(t0, t0, 0x00FF00FF); - tcg_gen_shli_tl(t1, t1, 8); - tcg_gen_andi_tl(t1, t1, ~0x00FF00FF); - tcg_gen_or_tl(t0, t0, t1); - tcg_gen_ext32s_tl(t0, t0); + { + TCGv t1 = tcg_temp_new(); + + tcg_gen_shri_tl(t1, t0, 8); + tcg_gen_andi_tl(t1, t1, 0x00FF00FF); + tcg_gen_shli_tl(t0, t0, 8); + tcg_gen_andi_tl(t0, t0, ~0x00FF00FF); + tcg_gen_or_tl(t0, t0, t1); + tcg_temp_free(t1); + tcg_gen_ext32s_tl(cpu_gpr[rd], t0); + } break; case OPC_SEB: - tcg_gen_ext8s_tl(t0, t1); + tcg_gen_ext8s_tl(cpu_gpr[rd], t0); break; case OPC_SEH: - tcg_gen_ext16s_tl(t0, t1); + tcg_gen_ext16s_tl(cpu_gpr[rd], t0); break; #if defined(TARGET_MIPS64) case OPC_DSBH: - gen_load_gpr(t1, rt); - tcg_gen_shri_tl(t0, t1, 8); - tcg_gen_andi_tl(t0, t0, 0x00FF00FF00FF00FFULL); - tcg_gen_shli_tl(t1, t1, 8); - tcg_gen_andi_tl(t1, t1, ~0x00FF00FF00FF00FFULL); - tcg_gen_or_tl(t0, t0, t1); + { + TCGv t1 = tcg_temp_new(); + + tcg_gen_shri_tl(t1, t0, 8); + tcg_gen_andi_tl(t1, t1, 0x00FF00FF00FF00FFULL); + tcg_gen_shli_tl(t0, t0, 8); + tcg_gen_andi_tl(t0, t0, ~0x00FF00FF00FF00FFULL); + tcg_gen_or_tl(cpu_gpr[rd], t0, t1); + tcg_temp_free(t1); + } break; case OPC_DSHD: - gen_load_gpr(t1, rt); - tcg_gen_shri_tl(t0, t1, 16); - tcg_gen_andi_tl(t0, t0, 0x0000FFFF0000FFFFULL); - tcg_gen_shli_tl(t1, t1, 16); - tcg_gen_andi_tl(t1, t1, ~0x0000FFFF0000FFFFULL); - tcg_gen_or_tl(t1, t0, t1); - tcg_gen_shri_tl(t0, t1, 32); - tcg_gen_shli_tl(t1, t1, 32); - tcg_gen_or_tl(t0, t0, t1); + { + TCGv t1 = tcg_temp_new(); + + tcg_gen_shri_tl(t1, t0, 16); + tcg_gen_andi_tl(t1, t1, 0x0000FFFF0000FFFFULL); + tcg_gen_shli_tl(t0, t0, 16); + tcg_gen_andi_tl(t0, t0, ~0x0000FFFF0000FFFFULL); + tcg_gen_or_tl(t0, t0, t1); + tcg_gen_shri_tl(t1, t0, 32); + tcg_gen_shli_tl(t0, t0, 32); + tcg_gen_or_tl(cpu_gpr[rd], t0, t1); + tcg_temp_free(t1); + } break; #endif default: MIPS_INVAL("bsfhl"); generate_exception(ctx, EXCP_RI); tcg_temp_free(t0); - tcg_temp_free(t1); return; } - gen_store_gpr(t0, rd); tcg_temp_free(t0); - tcg_temp_free(t1); } #ifndef CONFIG_USER_ONLY