The data address pointed to by the global array is stored at the 这个全局数组所指向的数据地址存储在
A split alu structure has been used to accomplish the simd operation and achieve high speed operation . in the rtl level design phase , we apply 3 methods to improve the speed of alu unit and dag ( data address generation unit ) which support the bit - reserve addressing and circular addressing : 1 在dag模块的设计中,以超前进位加法器构成进位选择结构实现了对于比特反转寻址计算,以两级流水( id 、 da )实现了窗口寻址计算,满足了时延要求。