The following bitwise operators exist in many guiscript commands.

 BM_SET  0  - sets exact value
 BM_AND  1  - performs the AND operation (turns off unlisted bits)
 BM_OR   2  - performs the OR operation (turns on listed bits)
 BM_XOR  3  - performs the XOR operation (toggles the listed bits)
 BM_NAND 4  - performs the NAND operation (turns off listed bits)
