From 3e474055c7cac1daa74aaeb63c41d96e97cf7c23 Mon Sep 17 00:00:00 2001 From: Taylor Simpson Date: Sun, 7 Feb 2021 23:46:00 -0600 Subject: [PATCH] Hexagon (target/hexagon) instruction and packet types The insn_t and packet_t are the interface between instruction decoding and TCG code generation Signed-off-by: Taylor Simpson Reviewed-by: Richard Henderson Message-Id: <1612763186-18161-11-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson --- target/hexagon/insn.h | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 target/hexagon/insn.h diff --git a/target/hexagon/insn.h b/target/hexagon/insn.h new file mode 100644 index 0000000000..5756a1d0ca --- /dev/null +++ b/target/hexagon/insn.h @@ -0,0 +1,74 @@ +/* + * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef HEXAGON_INSN_H +#define HEXAGON_INSN_H + +#include "cpu.h" + +#define INSTRUCTIONS_MAX 7 /* 2 pairs + loopend */ +#define REG_OPERANDS_MAX 5 +#define IMMEDS_MAX 2 + +struct Instruction; +struct Packet; +struct DisasContext; + +typedef void (*SemanticInsn)(CPUHexagonState *env, + struct DisasContext *ctx, + struct Instruction *insn, + struct Packet *pkt); + +struct Instruction { + SemanticInsn generate; /* pointer to genptr routine */ + uint8_t regno[REG_OPERANDS_MAX]; /* reg operands including predicates */ + uint16_t opcode; + + uint32_t iclass:6; + uint32_t slot:3; + uint32_t part1:1; /* + * cmp-jumps are split into two insns. + * set for the compare and clear for the jump + */ + uint32_t extension_valid:1; /* Has a constant extender attached */ + uint32_t which_extended:1; /* If has an extender, which immediate */ + uint32_t is_endloop:1; /* This is an end of loop */ + uint32_t new_value_producer_slot:4; + int32_t immed[IMMEDS_MAX]; /* immediate field */ +}; + +typedef struct Instruction Insn; + +struct Packet { + uint16_t num_insns; + uint16_t encod_pkt_size_in_bytes; + + /* Pre-decodes about COF */ + uint32_t pkt_has_cof:1; /* Has any change-of-flow */ + uint32_t pkt_has_endloop:1; + + uint32_t pkt_has_dczeroa:1; + + uint32_t pkt_has_store_s0:1; + uint32_t pkt_has_store_s1:1; + + Insn insn[INSTRUCTIONS_MAX]; +}; + +typedef struct Packet Packet; + +#endif -- 2.11.4.GIT