_BYTE byte_758E56A0[ 16 ] = { 115, 168, 173, 86, 124, 91, 202, 115, 4, 218, 173, 199,202, 61, 51, 188 };

    u1 get_u1_fast( ) {
        const byte* current; // r8
        int v2; // edx

        current = _current;
        v2 = LODWORD( _current ) - LODWORD( _buffer_start );
        _current = current + 1;
        return *current ^ byte_758E56A0[ ( v2 + *( current - 1 ) ) & 0xF ] ^ __ROR1__( *( current - 2 ), 3 );
    }

    u2 get_u2_fast( ) {
        const byte* current; // r11
        int v2; // r9d
        char v3; // r10
        unsigned __int16 v5; // [rsp+8h] [rbp+8h]

        current = _current;
        v2 = LODWORD(_current ) - LODWORD( _buffer_start );
        _current = current + 2;
        v3 = *( current - 1 );
        LOBYTE( v5 ) = *current ^ byte_758E56A0[ ( (_BYTE)v2 + v3 ) & 0xF ] ^ __ROR1__( *( current - 2 ), 3 );
        HIBYTE( v5 ) = current[ 1 ] ^ byte_758E56A0[ ( *current + (_BYTE)v2 + 1 ) & 0xF ] ^ __ROR1__( v3, 3 );
        return ( (unsigned __int8)v5 << 8 ) | HIBYTE( v5 );
    }

    u4 get_u4_fast( ) {
        const byte* current; // r9
        int v2; // r10d
        int v3; // edx
        int v4; // ecx
        int v5; // r11d
        int v6; // r8d
        int v7; // edx
        unsigned int v9; // [rsp+8h] [rbp+8h]

        current = _current;
        v2 = LODWORD( _current ) - LODWORD( _buffer_start );
        _current = current + 4;
        v3 = *( current - 1 );
        v4 = *current;
        v5 = ( v4 ^ byte_758E56A0[ ( v2 + v3 ) % 16 ] ^ __ROR1__( *( current - 2 ), 3 ) );
        v6 = current[ 1 ];
        LOBYTE( v9 ) = v5;
        BYTE1( v9 ) = v6 ^ byte_758E56A0[ ( v4 + v2 + 1 ) % 16 ] ^ __ROR1__( v3, 3 );
        v7 = current[ 2 ];
        HIBYTE( v9 ) = current[ 3 ] ^ byte_758E56A0[ ( v7 + v2 + 3 ) % 16 ] ^ __ROR1__( v6, 3 );
        BYTE2( v9 ) = v7 ^ byte_758E56A0[ ( v6 + v2 + 2 ) % 16 ] ^ __ROR1__( v4, 3 );
        return HIBYTE( v9 ) | ( ( BYTE2( v9 ) | ( ( ( v5 << 8 ) | BYTE1( v9 ) ) << 8 ) ) << 8 );
    }

    u8 get_u8_fast( ) {
        const byte* current; // rdx
        int v2; // r8d
        int v3; // r10d
        int v4; // ecx
        __int64 v5; // rbx
        int v6; // r9d
        int v7; // r10d
        int v8; // r11d
        int v9; // ecx
        int v10; // r9d
        int v11; // r10d
        unsigned __int64 v13; // [rsp+8h] [rbp+8h]

        current = _current;
        v2 = LODWORD( _current ) - LODWORD( _buffer_start );
        _current = current + 8;
        v3 = *( current - 1 );
        v4 = *current;
        v5 = ( v4 ^ byte_758E56A0[ ( v2 + v3 ) % 16 ] ^ __ROR1__( *( current - 2 ), 3 ) );
        v6 = current[ 1 ];
        LOBYTE( v13 ) = v5;
        BYTE1( v13 ) = v6 ^ byte_758E56A0[ ( v4 + v2 + 1 ) % 16 ] ^ __ROR1__( v3, 3 );
        v7 = current[ 2 ];
        v8 = current[ 3 ];
        BYTE2( v13 ) = v7 ^ byte_758E56A0[ ( v6 + v2 + 2 ) % 16 ] ^ __ROR1__( v4, 3 );
        v9 = current[ 4 ];
        BYTE3( v13 ) = v8 ^ byte_758E56A0[ ( v7 + v2 + 3 ) % 16 ] ^ __ROR1__( v6, 3 );
        v10 = current[ 5 ];
        BYTE4( v13 ) = v9 ^ byte_758E56A0[ ( v8 + v2 + 4 ) % 16 ] ^ __ROR1__( v7, 3 );
        v11 = current[ 6 ];
        BYTE5( v13 ) = v10 ^ byte_758E56A0[ ( v9 + v2 + 5 ) % 16 ] ^ __ROR1__( v8, 3 );
        HIBYTE( v13 ) = current[ 7 ] ^ byte_758E56A0[ ( v11 + v2 + 7 ) % 16 ] ^ __ROR1__( v10, 3 );
        BYTE6( v13 ) = v11 ^ byte_758E56A0[ ( v10 + v2 + 6 ) % 16 ] ^ __ROR1__( v9, 3 );
        return HIBYTE( v13 ) | ( ( BYTE6( v13 ) | ( ( ( ( BYTE4( v13 ) | ( ( BYTE3( v13 ) | ( ( BYTE2( v13 ) | ( ( ( v5 << 8 ) | BYTE1( v13 ) ) << 8 ) ) << 8 ) ) << 8 ) ) << 8 ) | BYTE5( v13 ) ) << 8 ) ) << 8 );
    }

    const u1* get_u1_buffer( u2 sz ) {
        static auto fn = SomeFunction{ FindPattern( "jvm.dll", "48 89 5C 24 ? 48 89 74 24 ? 57 48 83 EC ? 48 63 FA 48 8B F1 48 8B CF 33 D2 E8" ) };
        return fn.call<const u1*>( this, sz );
    }