| 摘要 |
A memory access method and apparatus which may access bytes of information from two contiguous memory segment addresses at a time. The amount of information which is accessed at one time is a memory access unit. The number of bytes in a memory segment is also the number of bytes in a memory access unit. The method and apparatus for accessing memory divides each memory segment between separate memories having the same number as the number of bytes in a memory segment. Each of the memories are simultaneously addressed according to a segment address input and an offset input, to thereby enable selected bytes of information stored through two contiguous memory segment addresses to be accessed. Although bytes in two contiguous memory segments may be accessed at a given moment, no more bytes than are contained in a memory access unit are accessed at a given moment. Thus, it is unnecessary to access the entirety of both of the contiguous memory segments in separate accessing steps when it is desired to access a memory access unit worth of information which lies across a memory segment boundary. Without the extra accessing step, memory accessing efficiency is improved.
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