LXR qemu/target/hexagon/insn.h

   1/*
   2 *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
   3 *
   4 *  This program is free software; you can redistribute it and/or modify
   5 *  it under the terms of the GNU General Public License as published by
   6 *  the Free Software Foundation; either version 2 of the License, or
   7 *  (at your option) any later version.
   8 *
   9 *  This program is distributed in the hope that it will be useful,
  10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 *  GNU General Public License for more details.
  13 *
  14 *  You should have received a copy of the GNU General Public License
  15 *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18#ifndef HEXAGON_INSN_H
  19#define HEXAGON_INSN_H
  20
  21#include "cpu.h"
  22
  23#define INSTRUCTIONS_MAX 7    /* 2 pairs + loopend */
  24#define REG_OPERANDS_MAX 5
  25#define IMMEDS_MAX 2
  26
  27struct Instruction;
  28struct Packet;
  29struct DisasContext;
  30
  31typedef void (*SemanticInsn)(CPUHexagonState *env,
  32                             struct DisasContext *ctx,
  33                             struct Instruction *insn,
  34                             struct Packet *pkt);
  35
  36struct Instruction {
  37    SemanticInsn generate;            /* pointer to genptr routine */
  38    uint8_t regno[REG_OPERANDS_MAX];    /* reg operands including predicates */
  39    uint16_t opcode;
  40
  41    uint32_t iclass:6;
  42    uint32_t slot:3;
  43    uint32_t which_extended:1;    /* If has an extender, which immediate */
  44    uint32_t new_value_producer_slot:4;
  45
  46    bool part1;              /*
  47                              * cmp-jumps are split into two insns.
  48                              * set for the compare and clear for the jump
  49                              */
  50    bool extension_valid;   /* Has a constant extender attached */
  51    bool is_endloop;   /* This is an end of loop */
  52    int32_t immed[IMMEDS_MAX];    /* immediate field */
  53};
  54
  55typedef struct Instruction Insn;
  56
  57struct Packet {
  58    uint16_t num_insns;
  59    uint16_t encod_pkt_size_in_bytes;
  60
  61    /* Pre-decodes about COF */
  62    bool pkt_has_cof;          /* Has any change-of-flow */
  63    bool pkt_has_endloop;
  64
  65    bool pkt_has_dczeroa;
  66
  67    bool pkt_has_store_s0;
  68    bool pkt_has_store_s1;
  69
  70    bool pkt_has_hvx;
  71    Insn *vhist_insn;
  72
  73    Insn insn[INSTRUCTIONS_MAX];
  74};
  75
  76typedef struct Packet Packet;
  77
  78#endif
  79