| 摘要 |
PURPOSE:To obtain a general purpose bit operating system which can execute the processing at a high speed by referring to an address table with regard to each output data, executing an access to a look-up table in accordance with its result, and gaining OR of its read-out data. CONSTITUTION:1,2,3... of the left end of an address table 12 show a number of an 8-bit output data, and as for the number 1, S1=1 and L=1, and it shows that an input data A1 is to be converted by a table T1 of a look-up table 10, and also, since S2=2 and L=2, an input data A2 is also fetched and it shows that its data is to be converted by a table T2. This applies correspondingly to the following cases. A processing part 14 executes such a processing, and subsequently, grains OR of a result of the first step which has converted the data A1 by the table T1, and the second step which has converted the data A2 by the table T2. In such a way, the number 1 of the 8-bit output data is obtained. The following cases are executed in the same way. |
