| 摘要 |
<P>PROBLEM TO BE SOLVED: To support conditional execution in each of processing elements (PE) of a Single Instruction Multiple Data stream (SIMD) array processor. Ž<P>SOLUTION: General purpose flags (arithmetic condition flags) (ACFs) (571 or 561) are defined and encoded utilizing a hierarchical one, two, or three-bits encoding. Each added bit provides a superset of the previous functionality. ACF generation (578 or 568) can be specified by the programmer. Multiple PEs can generate condition information at the same time with the programmer being able to specify a conditional execution in one processor on the basis of condition generated in a different processor using the communication interface between the processing elements to transfer the conditions. Each processor in a multiple processor array may independently have different units conditionally operate on the basis of their ACFs. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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