| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that computational performance is reduced due to format conversion required when control operation including both integers and floating point numbers is executed. <P>SOLUTION: A command includes a conversion flag for instructing format conversion to input and output data instructed by an operand. A decoding stage of a pipeline includes a format conversion part for converting the format of the input data, referring to the conversion flag, and preparing input data for an execution stage. A write-back stage of the pipeline includes a format conversion part for converting the format of the computation result of a computing unit in the execution stage, referring to the conversion flag, and preparing input data to be supplied to the execution stage for data in the write-back stage and forwarding. <P>COPYRIGHT: (C)2010,JPO&INPIT |
