| 摘要 |
PURPOSE:To support the different types of floating point data by using a data format transforming part. CONSTITUTION:If the format of input data is different from that of an IEEE type arithmetic part 4, a data format transforming part 2 transforms the format. While the part 2 performs no transformation of formats when the format of the input data is equal to that of the part 4. A data format transformation control signal S1 is used to decide one of both data and supply it to the part 4. The same transformation and selection are carried out by a data format transformation control signal S2 also when data are supplied after the end of arithmetic. If the transformation of data formats is carried out after the end of arithmetic, and analyzing part 6 analyzes the intermediate result of arithmetic. Then a rounding process, etc., are carried out against the result of analysis in response to the format to be transformed. |
