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/*

 * This file is subject to the terms and conditions of the BSD License. See

 * the file "LICENSE" in the main directory of this archive for more details.

 *

 * Copyright (C) 2014 Aleksander Osman

 */

#ifndef __SHARED_MEM_H

#define __SHARED_MEM_H

//------------------------------------------------------------------------------

typedef unsigned char  uint8;

typedef unsigned short uint16;

typedef unsigned int   uint32;

typedef unsigned long  uint64;

typedef char  int8;

typedef short int16;

typedef int   int32;

typedef long  int64;

//------------------------------------------------------------------------------

union memory_t {

    uint8  bytes [134217728];

    uint16 shorts[67108864];

    uint32 ints  [33554432];

};

struct tlb_t {

    uint32 vpn;

    uint32 asid;

    uint32 pfn;

    uint32 n;

    uint32 d;

    uint32 v;

    uint32 g;

};

struct processor_state_t {

    uint32 reg[31];

    uint32 pc;

    //lo, hi not compared

    tlb_t tlb[64];

    uint32 index_p;

    uint32 index_index;

    uint32 random;

    uint32 entrylo_pfn;

    uint32 entrylo_n;

    uint32 entrylo_d;

    uint32 entrylo_v;

    uint32 entrylo_g;

    uint32 context_ptebase;

    uint32 context_badvpn;

    uint32 bad_vaddr;

    uint32 entryhi_vpn;

    uint32 entryhi_asid;

    uint32 sr_cp_usable;

    uint32 sr_rev_endian;

    uint32 sr_bootstrap_vec;

    uint32 sr_tlb_shutdown;

    uint32 sr_parity_err;

    uint32 sr_cache_miss;

    uint32 sr_parity_zero;

    uint32 sr_switch_cache;

    uint32 sr_isolate_cache;

    uint32 sr_irq_mask;

    uint32 sr_ku_ie;

    uint32 cause_branch_delay;

    uint32 cause_cp_error;

    uint32 cause_irq_pending;

    uint32 cause_exc_code;

    uint32 epc;

};

struct report_t {

    uint32 counter;

    uint32 exception;

    processor_state_t state;

};

struct processor_t {

    uint32 initialize_do;

    uint32 read_do;

    uint32 read_address;

    uint32 read_byteenable;

    uint32 read_data;

    uint32 write_do;

    uint32 write_address;

    uint32 write_byteenable;

    uint32 write_data;

    uint32 check_do;

    uint32   report_do;

    report_t report;

};

struct shared_mem_t {

    memory_t mem;

    uint32 reset_vector[1024];

    processor_state_t initial;

    uint32 test_finished;

    uint32 irq2_at_event;

    uint32 irq3_at_event;

    uint32 check_at_event;

    processor_t proc_ao;

    processor_t proc_vmips;

};

//------------------------------------------------------------------------------

#endif //__SHARED_MEM_H