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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62e; envelope-from=alistair23@gmail.com; helo=mail-pl1-x62e.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1730347060846116600 Content-Type: text/plain; charset="utf-8" From: Deepak Gupta Signed-off-by: Deepak Gupta Co-developed-by: Jim Shu Co-developed-by: Andy Chiu Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis Message-ID: <20241008225010.1861630-9-debug@rivosinc.com> Signed-off-by: Alistair Francis --- disas/riscv.h | 2 ++ disas/riscv.c | 18 +++++++++++++++++- 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/disas/riscv.h b/disas/riscv.h index 0d1f89ce8a..ae78352e38 100644 --- a/disas/riscv.h +++ b/disas/riscv.h @@ -166,6 +166,7 @@ typedef enum { rv_codec_r2_immhl, rv_codec_r2_imm2_imm5, rv_codec_fli, + rv_codec_lp, } rv_codec; =20 /* structures */ @@ -228,6 +229,7 @@ enum { #define rv_fmt_rs1_rs2 "O\t1,2" #define rv_fmt_rd_imm "O\t0,i" #define rv_fmt_rd_uimm "O\t0,Ui" +#define rv_fmt_imm "O\ti" #define rv_fmt_rd_offset "O\t0,o" #define rv_fmt_rd_uoffset "O\t0,Uo" #define rv_fmt_rd_rs1_rs2 "O\t0,1,2" diff --git a/disas/riscv.c b/disas/riscv.c index fc0331b90b..513225129c 100644 --- a/disas/riscv.c +++ b/disas/riscv.c @@ -976,6 +976,7 @@ typedef enum { rv_op_amocas_h =3D 945, rv_op_wrs_sto =3D 946, rv_op_wrs_nto =3D 947, + rv_op_lpad =3D 948, } rv_op; =20 /* register names */ @@ -2236,6 +2237,7 @@ const rv_opcode_data rvi_opcode_data[] =3D { { "amocas.h", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, { "wrs.sto", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, { "wrs.nto", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "lpad", rv_codec_lp, rv_fmt_imm, NULL, 0, 0, 0 }, }; =20 /* CSR names */ @@ -2929,7 +2931,13 @@ static void decode_inst_opcode(rv_decode *dec, rv_is= a isa) case 7: op =3D rv_op_andi; break; } break; - case 5: op =3D rv_op_auipc; break; + case 5: + op =3D rv_op_auipc; + if (dec->cfg->ext_zicfilp && + (((inst >> 7) & 0b11111) =3D=3D 0b00000)) { + op =3D rv_op_lpad; + } + break; case 6: switch ((inst >> 12) & 0b111) { case 0: op =3D rv_op_addiw; break; @@ -4488,6 +4496,11 @@ static uint32_t operand_tbl_index(rv_inst inst) return ((inst << 54) >> 56); } =20 +static uint32_t operand_lpl(rv_inst inst) +{ + return inst >> 12; +} + /* decode operands */ =20 static void decode_inst_operands(rv_decode *dec, rv_isa isa) @@ -4875,6 +4888,9 @@ static void decode_inst_operands(rv_decode *dec, rv_i= sa isa) dec->imm =3D sextract32(operand_rs2(inst), 0, 5); dec->imm1 =3D operand_imm2(inst); break; + case rv_codec_lp: + dec->imm =3D operand_lpl(inst); + break; }; } =20 --=20 2.47.0