From nobody Wed Nov 5 08:33:45 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1533576086337632.0211625746108; Mon, 6 Aug 2018 10:21:26 -0700 (PDT) Received: from localhost ([::1]:35268 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fmjC9-0002W9-5J for importer@patchew.org; Mon, 06 Aug 2018 13:21:25 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56452) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fmj1B-00019t-VL for qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:10:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fmj19-0001xi-40 for qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:10:05 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:47124 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fmj18-0001uS-Jq for qemu-devel@nongnu.org; Mon, 06 Aug 2018 13:10:03 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 90CA81A209A; Mon, 6 Aug 2018 19:10:00 +0200 (CEST) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 6C7311A2039; Mon, 6 Aug 2018 19:10:00 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Mon, 6 Aug 2018 18:59:50 +0200 Message-Id: <1533574847-19294-24-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1533574847-19294-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1533574847-19294-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PATCH v7 23/80] target/mips: Add emulation of nanoMIPS 16-bit load and store instructions 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: peter.maydell@linaro.org, thuth@redhat.com, pburton@wavecomp.com, smarkovic@wavecomp.com, riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, armbru@redhat.com, arikalo@wavecomp.com, philippe.mathieu.daude@gmail.com, amarkovic@wavecomp.com, pjovanovic@wavecomp.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Yongbok Kim Add emulation of LWXS16, LB16, SB16, LBU16, LH16, SH16, LHU16, LW16, LWSP16, LW4X4, SW4X4, LWGP16, SWSP16, SW16, and SWGP16 instructions. Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- target/mips/translate.c | 81 +++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 81 insertions(+) diff --git a/target/mips/translate.c b/target/mips/translate.c index 7a3d45b..db07cfe 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16599,6 +16599,7 @@ static int decode_nanomips_opc(CPUMIPSState *env, D= isasContext *ctx) int rt =3D decode_gpr_gpr3(NANOMIPS_EXTRACT_RD(ctx->opcode)); int rs =3D decode_gpr_gpr3(NANOMIPS_EXTRACT_RS(ctx->opcode)); int rd =3D decode_gpr_gpr3(NANOMIPS_EXTRACT_RS1(ctx->opcode)); + int offset; int imm; =20 /* make sure instructions are on a halfword boundary */ @@ -16666,6 +16667,13 @@ static int decode_nanomips_opc(CPUMIPSState *env, = DisasContext *ctx) } break; case NM_P16C: + switch (ctx->opcode & 1) { + case NM_POOL16C_0: + break; + case NM_LWXS16: + gen_ldxs(ctx, rt, rs, rd); + break; + } break; case NM_P16_A1: switch (extract32(ctx->opcode, 6, 1)) { @@ -16737,24 +16745,97 @@ static int decode_nanomips_opc(CPUMIPSState *env,= DisasContext *ctx) case NM_ANDI16: break; case NM_P16_LB: + switch (extract32(ctx->opcode, 2, 2)) { + case NM_LB16: + offset =3D extract32(ctx->opcode, 0, 2); + gen_ld(ctx, OPC_LB, rt, rs, offset); + break; + case NM_SB16: + offset =3D decode_gpr_gpr3_src_store( + NANOMIPS_EXTRACT_RD(ctx->opcode)); + gen_st(ctx, OPC_SB, rt, rs, offset); + break; + case NM_LBU16: + offset =3D extract32(ctx->opcode, 0, 2); + gen_ld(ctx, OPC_LBU, rt, rs, offset); + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } break; case NM_P16_LH: + switch ((extract32(ctx->opcode, 3, 1) << 1) | (ctx->opcode & 1)) { + case NM_LH16: + offset =3D extract32(ctx->opcode, 1, 2) << 1; + gen_ld(ctx, OPC_LH, rt, rs, offset); + break; + case NM_SH16: + offset =3D decode_gpr_gpr3_src_store( + NANOMIPS_EXTRACT_RD(ctx->opcode)); + gen_st(ctx, OPC_SH, rt, rs, offset); + break; + case NM_LHU16: + offset =3D extract32(ctx->opcode, 1, 2) << 1; + gen_ld(ctx, OPC_LHU, rt, rs, offset); + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } break; case NM_LW16: + offset =3D extract32(ctx->opcode, 0, 4) << 2; + gen_ld(ctx, OPC_LW, rt, rs, offset); break; case NM_LWSP16: + rt =3D NANOMIPS_EXTRACT_RD5(ctx->opcode); + offset =3D extract32(ctx->opcode, 0, 5) << 2; + gen_ld(ctx, OPC_LW, rt, 29, offset); break; case NM_LW4X4: + rt =3D (extract32(ctx->opcode, 9, 1) << 3) | + extract32(ctx->opcode, 5, 3); + rs =3D (extract32(ctx->opcode, 4, 1) << 3) | + extract32(ctx->opcode, 0, 3); + offset =3D (extract32(ctx->opcode, 3, 1) << 3) | + (extract32(ctx->opcode, 8, 1) << 2); + rt =3D decode_gpr_gpr4(rt); + rs =3D decode_gpr_gpr4(rs); + gen_ld(ctx, OPC_LW, rt, rs, offset); break; case NM_SW4X4: + rt =3D (extract32(ctx->opcode, 9, 1) << 3) | + extract32(ctx->opcode, 5, 3); + rs =3D (extract32(ctx->opcode, 4, 1) << 3) | + extract32(ctx->opcode, 0, 3); + offset =3D (extract32(ctx->opcode, 3, 1) << 3) | + (extract32(ctx->opcode, 8, 1) << 2); + rt =3D decode_gpr_gpr4_zero(rt); + rs =3D decode_gpr_gpr4(rs); + gen_st(ctx, OPC_SW, rt, rs, offset); break; case NM_LWGP16: + offset =3D extract32(ctx->opcode, 0, 7) << 2; + gen_ld(ctx, OPC_LW, rt, 28, offset); break; case NM_SWSP16: + rt =3D NANOMIPS_EXTRACT_RD5(ctx->opcode); + offset =3D extract32(ctx->opcode, 0, 5) << 2; + gen_st(ctx, OPC_SW, rt, 29, offset); break; case NM_SW16: + rt =3D decode_gpr_gpr3_src_store( + NANOMIPS_EXTRACT_RD(ctx->opcode)); + rs =3D decode_gpr_gpr3(NANOMIPS_EXTRACT_RS(ctx->opcode)); + offset =3D extract32(ctx->opcode, 0, 4) << 2; + gen_st(ctx, OPC_SW, rt, rs, offset); break; case NM_SWGP16: + rt =3D decode_gpr_gpr3_src_store( + NANOMIPS_EXTRACT_RD(ctx->opcode)); + offset =3D extract32(ctx->opcode, 0, 7) << 2; + gen_st(ctx, OPC_SW, rt, 28, offset); break; case NM_BC16: gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, --=20 2.7.4