#ifndef OPCODES_H
#define OPCODES_H

#include <string.h>
#include "symbols_table.h"

#define OPCODECOUNT 13

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

typedef enum {
    COPY, ADD, SUB, JZ, INT, YLD, RET,
    CMP, NOP, JMP, CALL, IN, OUT,
} Mnemonic;

typedef enum {
    None,
    Constant,
    Address
} OpcodeParameter;

typedef struct {
    Mnemonic Mnemonic;
    OpcodeParameter ParameterOneType;
    OpcodeParameter ParameterTwoType;

    union {
        int Constant;
        Symbol* Symbol;
    } ParameterOne;

    union {
        int Constant;
        Symbol* Symbol;
    } ParameterTwo;
} Instruction;

extern Instruction instructions[OPCODECOUNT];

int IsOpcode(const char*, Mnemonic*);
int IsRegister(const char*, Registers*);
//const Instruction* GetOpcodeDetails(Mnemonic);
unsigned char GetInstructionMask(Mnemonic type);

#endif