MICROINSTRUCTION CONTROLLED DATA PROCESSOR

摘要

In a processor, a micro-instruction memory such as ROM is driven in each predetermined cycle hence to generate a number of micro- instructions in accordance with a page address it recives. A general micro-instruction contains the page address and the displacement address of multi-preceding micro-instructions. One of the multi- instructions read-out of the ROM is selected upon each read-out operation. The page and displacement addresses in the micro- instructions thus selected are set in an address register at the timings for reading out the multi-instructions.