| 摘要 |
PURPOSE:To provide two microprogram (MP) processing parts, so that MP loading can be executed in case when an MP loading instruction field gives a loading instruction to the other MP control storing part, by use of a part of an MP field of one MP processing part. CONSTITUTION:When both bits 30, 31 of the first MP field 32 are ''on'', a control storage address 35 is initialized to ''0'' address, and also a load-on FF 36 is turned ''on''. Subsequently, contents of MP field information 301 are written in an address of an address input 308 in the MP storage control part 31. Also, in this case, a load-on signal 307 operates as a +1 input signal, too, of the control storage address register 35, and is step-advanced to ''1'' address of the register 35. When writing to ''1'' address, the first MP processing part 21 prepares newly write contents in fields 32-63, and sets the bit 31 to ''0'' so that the address register 35 is step-advanced. Thereafter, said operation is executed repeatedly, and MP is loaded one after another to the MP control storage part 31. |
