编程完成 Z=3x+4y-4，其中x、y为字节单元，z为字单元。如果x、y为字单元，z为双字单元,，如何修改程序，并运行，给出结果。-Programmed Z = 3 x+ 4y- 4, including x, y, Z for byte unit for word unit. If the x, y, z for word unit for double-word units, and how to modify the program, and run, the result is giv