| 摘要 |
Provided are: an instruction table division unit (104) for dividing an instruction table into a first instruction table comprising entries for which the operation code information matches any of one or a plurality of exception conditions, and a second instruction table comprising entries for which the operation code information does not match any of one or a plurality of exception conditions, when the one or a plurality of exception conditions are included in at least one entry among a plurality of entries in an instruction table, and it is not possible to calculate a mask common to all of the operation code information included in the plurality of entries; and a tree creation unit (101) for creating a decoding tree for specifying instruction identifiers corresponding to bit strings from the divided instruction table. |
