3e474055c7
The insn_t and packet_t are the interface between instruction decoding and TCG code generation Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1612763186-18161-11-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HEXAGON_INSN_H
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#define HEXAGON_INSN_H
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#include "cpu.h"
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#define INSTRUCTIONS_MAX 7 /* 2 pairs + loopend */
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#define REG_OPERANDS_MAX 5
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#define IMMEDS_MAX 2
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struct Instruction;
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struct Packet;
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struct DisasContext;
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typedef void (*SemanticInsn)(CPUHexagonState *env,
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struct DisasContext *ctx,
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struct Instruction *insn,
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struct Packet *pkt);
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struct Instruction {
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SemanticInsn generate; /* pointer to genptr routine */
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uint8_t regno[REG_OPERANDS_MAX]; /* reg operands including predicates */
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uint16_t opcode;
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uint32_t iclass:6;
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uint32_t slot:3;
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uint32_t part1:1; /*
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* cmp-jumps are split into two insns.
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* set for the compare and clear for the jump
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*/
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uint32_t extension_valid:1; /* Has a constant extender attached */
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uint32_t which_extended:1; /* If has an extender, which immediate */
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uint32_t is_endloop:1; /* This is an end of loop */
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uint32_t new_value_producer_slot:4;
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int32_t immed[IMMEDS_MAX]; /* immediate field */
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};
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typedef struct Instruction Insn;
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struct Packet {
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uint16_t num_insns;
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uint16_t encod_pkt_size_in_bytes;
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/* Pre-decodes about COF */
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uint32_t pkt_has_cof:1; /* Has any change-of-flow */
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uint32_t pkt_has_endloop:1;
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uint32_t pkt_has_dczeroa:1;
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uint32_t pkt_has_store_s0:1;
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uint32_t pkt_has_store_s1:1;
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Insn insn[INSTRUCTIONS_MAX];
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};
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typedef struct Packet Packet;
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#endif
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