~starkingdoms/starkingdoms

ref: ce2ff9e8c8fa338757524a29f181986b6776cb31 starkingdoms/crates/kabel/src/opcodes.rs -rw-r--r-- 2.4 KiB
ce2ff9e8 — ghostly_zsh networking on native 10 months ago
                                                                                
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#![allow(non_camel_case_types)]

#[derive(Debug)]
pub enum OpCode {
    LOAD,
    VAR,
    REF,
    ASN,
    ASNARR,
    DECL,

    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,
            REF     => 0x02,
            ASN     => 0x03,
            ASNARR  => 0x04,
            DECL    => 0x05,

            ADD     => 0x06,
            SUB     => 0x07,
            MUL     => 0x08,
            DIV     => 0x09,
            MOD     => 0x0A,
            BITAND  => 0x0B,
            BITXOR  => 0x0C,
            BITOR   => 0x0D,
            EQ      => 0x0E,
            NE      => 0x0F,
            GR      => 0x10,
            GE      => 0x11,
            LS      => 0x12,
            LE      => 0x13,
            OR      => 0x14,
            AND     => 0x15,

            NOT     => 0x16,
            NEG     => 0x17,

            JMP     => 0x18,
            JMP_UP  => 0x19,
            JNE     => 0x1A,

            CALL    => 0x1B,
            RET     => 0x1C,

            LIST    => 0x1D,
            SCR     => 0x1E,

            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 => REF,
            0x03 => ASN,
            0x04 => ASNARR,
            0x05 => DECL,

            0x06 => ADD,
            0x07 => SUB,
            0x08 => MUL,
            0x09 => DIV,
            0x0A => MOD,
            0x0B => BITAND,
            0x0c => BITXOR,
            0x0d => BITOR,
            0x0E => EQ,
            0x0F => NE,
            0x10 => GR,
            0x11 => GE,
            0x12 => LS,
            0x13 => LE,
            0x14 => OR,
            0x15 => AND,

            0x16 => NOT,
            0x17 => NEG,

            0x18 => JMP,
            0x19 => JMP_UP,
            0x1A => JNE,

            0x1B => CALL,
            0x1c => RET,

            0x1D => LIST,
            0x1E => SCR,

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