DBT-RISE-TGC/src/iss/arch/tgc5c.h

/*******************************************************************************
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 * modification, are permitted provided that the following conditions are met:
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#ifndef _TGC5C_H_
#define _TGC5C_H_
// clang-format off
#include <array>
#include <iss/arch/traits.h>
#include <iss/arch_if.h>
#include <iss/vm_if.h>

namespace iss {
namespace arch {

struct tgc5c;

template <> struct traits<tgc5c> {

    constexpr static char const* const core_type = "TGC5C";
    
    static constexpr std::array<const char*, 36> reg_names{
        {"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31", "pc", "next_pc", "priv", "dpc"}};
 
    static constexpr std::array<const char*, 36> reg_aliases{
        {"zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", "pc", "next_pc", "priv", "dpc"}};

    enum constants {MISA_VAL=1073746180ULL, MARCHID_VAL=2147483651ULL, CLIC_NUM_IRQ=0ULL, XLEN=32ULL, INSTR_ALIGNMENT=2ULL, RFS=32ULL, fence=0ULL, fencei=1ULL, fencevmal=2ULL, fencevmau=3ULL, RV_CSR_FFLAGS=1ULL, RV_CSR_FRM=2ULL, RV_CSR_FCSR=3ULL, RV_CSR_UTVT=7ULL, RV_CSR_VSTART=8ULL, RV_CSR_VXSAT=9ULL, RV_CSR_VXRM=10ULL, RV_CSR_VCSR=15ULL, RV_CSR_SEED=21ULL, RV_CSR_UNXTI=69ULL, RV_CSR_UINTSTATUS=70ULL, RV_CSR_USCRATCHCSW=72ULL, RV_CSR_USCRATCHCSWL=73ULL, RV_CSR_SSTATUS=256ULL, RV_CSR_SEDELEG=258ULL, RV_CSR_SIDELEG=259ULL, RV_CSR_SIE=260ULL, RV_CSR_STVEC=261ULL, RV_CSR_SCOUNTEREN=262ULL, RV_CSR_STVT=263ULL, RV_CSR_SENVCFG=266ULL, RV_CSR_SSTATEEN0=268ULL, RV_CSR_SSTATEEN1=269ULL, RV_CSR_SSTATEEN2=270ULL, RV_CSR_SSTATEEN3=271ULL, RV_CSR_SSCRATCH=320ULL, RV_CSR_SEPC=321ULL, RV_CSR_SCAUSE=322ULL, RV_CSR_STVAL=323ULL, RV_CSR_SIP=324ULL, RV_CSR_SNXTI=325ULL, RV_CSR_SINTSTATUS=326ULL, RV_CSR_SSCRATCHCSW=328ULL, RV_CSR_SSCRATCHCSWL=329ULL, RV_CSR_STIMECMP=333ULL, RV_CSR_STIMECMPH=349ULL, RV_CSR_SATP=384ULL, RV_CSR_VSSTATUS=512ULL, RV_CSR_VSIE=516ULL, RV_CSR_VSTVEC=517ULL, RV_CSR_VSSCRATCH=576ULL, RV_CSR_VSEPC=577ULL, RV_CSR_VSCAUSE=578ULL, RV_CSR_VSTVAL=579ULL, RV_CSR_VSIP=580ULL, RV_CSR_VSTIMECMP=589ULL, RV_CSR_VSTIMECMPH=605ULL, RV_CSR_VSATP=640ULL, RV_CSR_MSTATUS=768ULL, RV_CSR_MISA=769ULL, RV_CSR_MEDELEG=770ULL, RV_CSR_MIDELEG=771ULL, RV_CSR_MIE=772ULL, RV_CSR_MTVEC=773ULL, RV_CSR_MCOUNTEREN=774ULL, RV_CSR_MTVT=775ULL, RV_CSR_MENVCFG=778ULL, RV_CSR_MSTATEEN0=780ULL, RV_CSR_MSTATEEN1=781ULL, RV_CSR_MSTATEEN2=782ULL, RV_CSR_MSTATEEN3=783ULL, RV_CSR_MSTATUSH=784ULL, RV_CSR_MENVCFGH=794ULL, RV_CSR_MSTATEEN0H=796ULL, RV_CSR_MSTATEEN1H=797ULL, RV_CSR_MSTATEEN2H=798ULL, RV_CSR_MSTATEEN3H=799ULL, RV_CSR_MCOUNTINHIBIT=800ULL, RV_CSR_MHPMEVENT3=803ULL, RV_CSR_MHPMEVENT4=804ULL, RV_CSR_MHPMEVENT5=805ULL, RV_CSR_MHPMEVENT6=806ULL, RV_CSR_MHPMEVENT7=807ULL, RV_CSR_MHPMEVENT8=808ULL, RV_CSR_MHPMEVENT9=809ULL, RV_CSR_MHPMEVENT10=810ULL, RV_CSR_MHPMEVENT11=811ULL, RV_CSR_MHPMEVENT12=812ULL, RV_CSR_MHPMEVENT13=813ULL, RV_CSR_MHPMEVENT14=814ULL, RV_CSR_MHPMEVENT15=815ULL, RV_CSR_MHPMEVENT16=816ULL, RV_CSR_MHPMEVENT17=817ULL, RV_CSR_MHPMEVENT18=818ULL, RV_CSR_MHPMEVENT19=819ULL, RV_CSR_MHPMEVENT20=820ULL, RV_CSR_MHPMEVENT21=821ULL, RV_CSR_MHPMEVENT22=822ULL, RV_CSR_MHPMEVENT23=823ULL, RV_CSR_MHPMEVENT24=824ULL, RV_CSR_MHPMEVENT25=825ULL, RV_CSR_MHPMEVENT26=826ULL, RV_CSR_MHPMEVENT27=827ULL, RV_CSR_MHPMEVENT28=828ULL, RV_CSR_MHPMEVENT29=829ULL, RV_CSR_MHPMEVENT30=830ULL, RV_CSR_MHPMEVENT31=831ULL, RV_CSR_MSCRATCH=832ULL, RV_CSR_MEPC=833ULL, RV_CSR_MCAUSE=834ULL, RV_CSR_MTVAL=835ULL, RV_CSR_MIP=836ULL, RV_CSR_MNXTI=837ULL, RV_CSR_MINTSTATUS=838ULL, RV_CSR_MSCRATCHCSW=840ULL, RV_CSR_MSCRATCHCSWL=841ULL, RV_CSR_MTINST=842ULL, RV_CSR_MTVAL2=843ULL, RV_CSR_PMPCFG0=928ULL, RV_CSR_PMPCFG1=929ULL, RV_CSR_PMPCFG2=930ULL, RV_CSR_PMPCFG3=931ULL, RV_CSR_PMPCFG4=932ULL, RV_CSR_PMPCFG5=933ULL, RV_CSR_PMPCFG6=934ULL, RV_CSR_PMPCFG7=935ULL, RV_CSR_PMPCFG8=936ULL, RV_CSR_PMPCFG9=937ULL, RV_CSR_PMPCFG10=938ULL, RV_CSR_PMPCFG11=939ULL, RV_CSR_PMPCFG12=940ULL, RV_CSR_PMPCFG13=941ULL, RV_CSR_PMPCFG14=942ULL, RV_CSR_PMPCFG15=943ULL, RV_CSR_PMPADDR0=944ULL, RV_CSR_PMPADDR1=945ULL, RV_CSR_PMPADDR2=946ULL, RV_CSR_PMPADDR3=947ULL, RV_CSR_PMPADDR4=948ULL, RV_CSR_PMPADDR5=949ULL, RV_CSR_PMPADDR6=950ULL, RV_CSR_PMPADDR7=951ULL, RV_CSR_PMPADDR8=952ULL, RV_CSR_PMPADDR9=953ULL, RV_CSR_PMPADDR10=954ULL, RV_CSR_PMPADDR11=955ULL, RV_CSR_PMPADDR12=956ULL, RV_CSR_PMPADDR13=957ULL, RV_CSR_PMPADDR14=958ULL, RV_CSR_PMPADDR15=959ULL, RV_CSR_PMPADDR16=960ULL, RV_CSR_PMPADDR17=961ULL, RV_CSR_PMPADDR18=962ULL, RV_CSR_PMPADDR19=963ULL, RV_CSR_PMPADDR20=964ULL, RV_CSR_PMPADDR21=965ULL, RV_CSR_PMPADDR22=966ULL, RV_CSR_PMPADDR23=967ULL, RV_CSR_PMPADDR24=968ULL, RV_CSR_PMPADDR25=969ULL, RV_CSR_PMPADDR26=970ULL, RV_CSR_PMPADDR27=971ULL, RV_CSR_PMPADDR28=972ULL, RV_CSR_PMPADDR29=973ULL, RV_CSR_PMPADDR30=974ULL, RV_CSR_PMPADDR31=975ULL, RV_CSR_PMPADDR32=976ULL, RV_CSR_PMPADDR33=977ULL, RV_CSR_PMPADDR34=978ULL, RV_CSR_PMPADDR35=979ULL, RV_CSR_PMPADDR36=980ULL, RV_CSR_PMPADDR37=981ULL, RV_CSR_PMPA

    constexpr static unsigned FP_REGS_SIZE = 0;

    enum reg_e {
        X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17, X18, X19, X20, X21, X22, X23, X24, X25, X26, X27, X28, X29, X30, X31, PC, NEXT_PC, PRIV, DPC, NUM_REGS, TRAP_STATE=NUM_REGS, PENDING_TRAP, ICOUNT, CYCLE, INSTRET, INSTRUCTION, LAST_BRANCH
    };

    using reg_t = uint32_t;

    using addr_t = uint32_t;

    using code_word_t = uint32_t; //TODO: check removal

    using virt_addr_t = iss::typed_addr_t<iss::address_type::VIRTUAL>;

    using phys_addr_t = iss::typed_addr_t<iss::address_type::PHYSICAL>;

    static constexpr std::array<const uint32_t, 43> reg_bit_widths{
        {32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,8,32,32,32,64,64,64,32,32}};

    static constexpr std::array<const uint32_t, 43> reg_byte_offsets{
        {0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,137,141,145,149,157,165,173,177}};

    static const uint64_t addr_mask = (reg_t(1) << (XLEN - 1)) | ((reg_t(1) << (XLEN - 1)) - 1);

    enum sreg_flag_e { FLAGS };

    enum mem_type_e { MEM, FENCE, RES, CSR, IMEM = MEM };
    
    enum class opcode_e {
        LUI = 0,
        AUIPC = 1,
        JAL = 2,
        JALR = 3,
        BEQ = 4,
        BNE = 5,
        BLT = 6,
        BGE = 7,
        BLTU = 8,
        BGEU = 9,
        LB = 10,
        LH = 11,
        LW = 12,
        LBU = 13,
        LHU = 14,
        SB = 15,
        SH = 16,
        SW = 17,
        ADDI = 18,
        SLTI = 19,
        SLTIU = 20,
        XORI = 21,
        ORI = 22,
        ANDI = 23,
        SLLI = 24,
        SRLI = 25,
        SRAI = 26,
        ADD = 27,
        SUB = 28,
        SLL = 29,
        SLT = 30,
        SLTU = 31,
        XOR = 32,
        SRL = 33,
        SRA = 34,
        OR = 35,
        AND = 36,
        FENCE = 37,
        ECALL = 38,
        EBREAK = 39,
        MRET = 40,
        WFI = 41,
        CSRRW = 42,
        CSRRS = 43,
        CSRRC = 44,
        CSRRWI = 45,
        CSRRSI = 46,
        CSRRCI = 47,
        FENCE_I = 48,
        MUL = 49,
        MULH = 50,
        MULHSU = 51,
        MULHU = 52,
        DIV = 53,
        DIVU = 54,
        REM = 55,
        REMU = 56,
        C__ADDI4SPN = 57,
        C__LW = 58,
        C__SW = 59,
        C__ADDI = 60,
        C__NOP = 61,
        C__JAL = 62,
        C__LI = 63,
        C__LUI = 64,
        C__ADDI16SP = 65,
        __reserved_clui = 66,
        C__SRLI = 67,
        C__SRAI = 68,
        C__ANDI = 69,
        C__SUB = 70,
        C__XOR = 71,
        C__OR = 72,
        C__AND = 73,
        C__J = 74,
        C__BEQZ = 75,
        C__BNEZ = 76,
        C__SLLI = 77,
        C__LWSP = 78,
        C__MV = 79,
        C__JR = 80,
        __reserved_cmv = 81,
        C__ADD = 82,
        C__JALR = 83,
        C__EBREAK = 84,
        C__SWSP = 85,
        DII = 86,
        MAX_OPCODE
    };
};

struct tgc5c: public arch_if {

    using virt_addr_t = typename traits<tgc5c>::virt_addr_t;
    using phys_addr_t = typename traits<tgc5c>::phys_addr_t;
    using reg_t =  typename traits<tgc5c>::reg_t;
    using addr_t = typename traits<tgc5c>::addr_t;

    tgc5c();
    ~tgc5c();

    void reset(uint64_t address=0) override;

    uint8_t* get_regs_base_ptr() override;

    inline uint64_t get_icount() { return reg.icount; }

    inline bool should_stop() { return interrupt_sim; }

    inline uint64_t stop_code() { return interrupt_sim; }

    virtual phys_addr_t virt2phys(const iss::addr_t& addr);

    virtual iss::sync_type needed_sync() const { return iss::NO_SYNC; }

    inline uint32_t get_last_branch() { return reg.last_branch; }


#pragma pack(push, 1)
    struct TGC5C_regs { 
        uint32_t X0 = 0; 
        uint32_t X1 = 0; 
        uint32_t X2 = 0; 
        uint32_t X3 = 0; 
        uint32_t X4 = 0; 
        uint32_t X5 = 0; 
        uint32_t X6 = 0; 
        uint32_t X7 = 0; 
        uint32_t X8 = 0; 
        uint32_t X9 = 0; 
        uint32_t X10 = 0; 
        uint32_t X11 = 0; 
        uint32_t X12 = 0; 
        uint32_t X13 = 0; 
        uint32_t X14 = 0; 
        uint32_t X15 = 0; 
        uint32_t X16 = 0; 
        uint32_t X17 = 0; 
        uint32_t X18 = 0; 
        uint32_t X19 = 0; 
        uint32_t X20 = 0; 
        uint32_t X21 = 0; 
        uint32_t X22 = 0; 
        uint32_t X23 = 0; 
        uint32_t X24 = 0; 
        uint32_t X25 = 0; 
        uint32_t X26 = 0; 
        uint32_t X27 = 0; 
        uint32_t X28 = 0; 
        uint32_t X29 = 0; 
        uint32_t X30 = 0; 
        uint32_t X31 = 0; 
        uint32_t PC = 0; 
        uint32_t NEXT_PC = 0; 
        uint8_t PRIV = 0; 
        uint32_t DPC = 0;
        uint32_t trap_state = 0, pending_trap = 0;
        uint64_t icount = 0;
        uint64_t cycle = 0;
        uint64_t instret = 0;
        uint32_t instruction = 0;
        uint32_t last_branch = 0;
    } reg;
#pragma pack(pop)
    std::array<address_type, 4> addr_mode;
    
    uint64_t interrupt_sim=0;

    uint32_t get_fcsr(){return 0;}
    void set_fcsr(uint32_t val){}

};

}
}            
#endif /* _TGC5C_H_ */
// clang-format on