#ifndef OPCODES_H
#define OPCODES_H

#include <string.h>
#include <errno.h>
#include <stdio.h>
//#include "symbols_table.h"

typedef enum {
    R1, R2, R3, R4, R5, R6, R7, R8
} Registers;

typedef enum {
    ADD, SUB, JZ, INT, YLD, RET,
    CMP, NOP, JMP, CALL, LOAD, JE, INC, DEC, LOADB
} Mnemonic;

typedef enum {
    NoParameter,
    ConstantParameter,
    AddressParameter,
    RegisterParameter,
    UnresolvedParameter
} OpcodeParameter;

typedef struct {
    OpcodeParameter ParameterType;
    OpcodeParameter InterpretedAs;

    union {
        int Number; //ConstanrParam
        Registers Register; //Register param
        char* Symbol; //Symbol* Symbol; //Address param
    } Value;
} Parameter;

typedef struct {
    Mnemonic Mnemonic;
    Parameter* ParameterOne;
    Parameter* ParameterTwo;
} Instruction;

Instruction* CreateInstruction(Mnemonic mnemonic);
Parameter* CreateParameter(OpcodeParameter parameterType);
void FreeInstruction(Instruction* instruction);
int IsOpcode(const char*, Mnemonic*);
int IsRegister(const char*, Registers*);
void GetMnemonicText(Mnemonic mnemonic, char buffer[12]);
void GetRegisterText(Registers reg, char buffer[3]);
unsigned char GetInstructionMask(Mnemonic type);

#endif