| 摘要 |
PURPOSE:To improve processing speed and to attain the effective use of a control memory by constituting to be able to complete the branching with one step to an optimum address in accordance with the conditions when processing is different according to the data, length, address, etc. CONSTITUTION:At the time of reading a first operand, (bits 4-3='00') is obtained, and data length 3 bytes (actual length -1; data length=002H) are set to a condition branching register 4, and then, based on the register contents ('00010'=002H), a ROS 5 for a branching address is read-accessed, from the same ROS 5 for the branching address, 0036H is outputted, thereafter, branched to a 36H address and the processing is continued. In the same manner, when a data length is one byte, branching is executed to a 10H address, when it is 4 bytes, the branching is executed to a 51H address respectively and the processing is continued. Thus, the storing data to the ROS 5 for the the branching address are changed and the branching destination can be freely designated to an arbitrary address.
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