| 摘要 |
PROBLEM TO BE SOLVED: To execute safe interrupt handling in a processor highly responsively. SOLUTION: Upon an external interrupt during the processing of a vector instruction, the processor 1 holds external interrupt handling until finishing the vector instruction processing. The external interrupt handling is executed after the vector instruction processing in progress is finished. This can prevent the situation wherein interrupt handling causes incorrect values of a vector instruction computation result to enable the safe execution of interrupt handling. A vector instruction execution detection part 109 implemented as hardware in the processor 1 detects whether a vector instruction is processed or not, and according to the detection result, the execution of interrupt handling is controlled. This can provide higher processing responsiveness than the software control of interrupt handling. COPYRIGHT: (C)2005,JPO&NCIPI
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