BIT_LOAD
#define LOAD_OP(opcode) TEST_OPCODE((opcode),MASK_CPDT | BIT_LOAD)
#define STORE_OP(opcode) ((opcode & (MASK_CPDT | BIT_LOAD)) == MASK_CPDT)
#define LOAD(opcode) ((opcode & BIT_LOAD) != 0)
#define STORE(opcode) ((opcode & BIT_LOAD) == 0)