#![allow(non_camel_case_types)]

#[derive(Debug)]
pub enum OpCode {
    LOAD,
    VAR,
    ASSIGN,

    ADD,
    SUB,
    MUL,
    DIV,
    MOD,
    BITAND,
    BITXOR,
    BITOR,
    EQ,
    NE,
    GR,
    GE,
    LS,
    LE,
    OR,
    AND,

    NOT,
    NEG,

    JMP,
    JMP_UP,
    JNE,

    CALL,
    RET,

    LIST,
    SCR,

    POP,
    PRINT,
    ERR,
}

impl From<OpCode> for u8 {
    fn from(value: OpCode) -> Self {
        use OpCode::*;
        match value {
            LOAD    => 0x00,
            VAR     => 0x01,
            ASSIGN  => 0x02,

            ADD     => 0x03,
            SUB     => 0x04,
            MUL     => 0x05,
            DIV     => 0x06,
            MOD     => 0x07,
            BITAND  => 0x08,
            BITXOR  => 0x09,
            BITOR   => 0x0a,
            EQ      => 0x0B,
            NE      => 0x0C,
            GR      => 0x0D,
            GE      => 0x0E,
            LS      => 0x0F,
            LE      => 0x10,
            OR      => 0x11,
            AND     => 0x12,

            NOT     => 0x13,
            NEG     => 0x14,

            JMP     => 0x15,
            JMP_UP  => 0x16,
            JNE     => 0x17,

            CALL    => 0x18,
            RET     => 0x19,

            LIST    => 0x1A,
            SCR     => 0x1B,

            POP     => 0xFD,
            PRINT   => 0xFE,
            ERR     => 0xFF
        }
    }
}
impl From<u8> for OpCode {
    fn from(value: u8) -> Self {
        use OpCode::*; match value {
            0x00 => LOAD,
            0x01 => VAR,
            0x02 => ASSIGN,

            0x03 => ADD,
            0x04 => SUB,
            0x05 => MUL,
            0x06 => DIV,
            0x07 => MOD,
            0x08 => BITAND,
            0x09 => BITXOR,
            0x0a => BITOR,
            0x0B => EQ,
            0x0C => NE,
            0x0D => GR,
            0x0E => GE,
            0x0F => LS,
            0x10 => LE,
            0x11 => OR,
            0x12 => AND,

            0x13 => NOT,
            0x14 => NEG,

            0x15 => JMP,
            0x16 => JMP_UP,
            0x17 => JNE,

            0x18 => CALL,
            0x19 => RET,

            0x1A => LIST,
            0x1B => SCR,

            0xFD => POP,
            0xFE => PRINT,
            _ => ERR
        }
    }
}