cpu.h

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#ifndef CPU_H_INCLUDED
#define CPU_H_INCLUDED
 
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../stack/stack.h"
 
typedef int cpu_operand_t;
 
 
/*--------------------------CONST---------------------------------------------*/
const int CPU_VERSION = 0; 
 
const int RAM_SIZE = 100; 
const int RAM_ACCESS_TIME = 20; 
 
const int instruction_length[] = 
{
    1, //HLT
    1, //START
    2, //PUSH
    1, //POP
    1, //ADD
    1, //SUB
    1, //MUL
    1, //DIV
    1, //OUT
    1 //NONE
};
 
 
/*--------------------------ENUM----------------------------------------------*/
enum instruction_type 
{
    HLT = 0,
    STRT = 1,
    PUSH = 2,
    POP = 3,
    ADD = 4,
    SUB = 5,
    MUL = 6,
    DIV = 7,
    OUT = 8,
    NONE = 9
};
 
 
/*--------------------------ENUM----------------------------------------------*/
enum descriptional_argument 
//тип дополнительного (определительного) аргумента в машинном коде
{
    NARG = 0,
    INT = 1,
    REAL = 2,
    RGAX = 3,
    RGBX = 4,
    RGCX = 5,
    RGDX = 6,
    RAM = 7,
    RAMA = 8,
    RAMB = 9,
    RAMC = 10,
    RAMD = 11
};
 
 
/*--------------------------STRUCT--------------------------------------------*/
struct CpuCode 
{
        cpu_operand_t* machine_code = NULL; 
        int N_entities = 0;
        int N_instructions = 0;
};
 
struct CPU 
{
    Stack data_stack;
    cpu_operand_t reg[4] = {};
    cpu_operand_t* ram_ptr = NULL;
    //cpu_operand_t
};
 
struct BinaryHeader 
{
    char header = 0x7f;
    char type[4] = "ELF";
    char name[18] = "SoftwareProcessor";
    int version = 0;
};
 
 
/*--------------------------PROTOTYPE-----------------------------------------*/
void execute_cpu( CPU* some_cpu, instruction_type instruction, descriptional_argument descr_arg = NARG, cpu_operand_t operand = {} ); 
void execute_cpucode( CPU* some_cpu, CpuCode* some_cpucode ); 
void cpucode_file_input( CpuCode* some_cpucode, const char* filename ); 
void free_cpucode( CpuCode* some_cpucode ); 
 
void start_cpu( CPU* some_cpu ); 
void push_cpu( CPU* some_cpu, descriptional_argument descr_arg, cpu_operand_t value ); 
void pop_cpu( CPU* some_cpu, descriptional_argument descr_arg ); 
void add_cpu( CPU* some_cpu ); 
void sub_cpu( CPU* some_cpu ); 
void mul_cpu( CPU* some_cpu ); 
void div_cpu( CPU* some_cpu ); 
void out_cpu( CPU* some_cpu ); 
void hlt_cpu( CPU* some_cpu );  
 
#endif //CPU_H_INCLUDED