| 摘要 |
PURPOSE:To improve the versalility and the flexibility, by constituting that a microprogram field value of two microprogram processing sections are switched so as to provide excellent processing ability with a simple hardware. CONSTITUTION:The 1st microprogram field value is stored in a register 21 and the 2nd microprogram field value is stored in a register 22. Bits 32-63 of the register 21 and the register 22 are connected to a microprogram switching section 23, and an output of the switching section 23 is inputted to a decoder section 24. The switching section 23 selects an output of the register 21 based on the indication of a selecting signal gate 25 when the switching designation bit is ''1''. When the designation bit is ''0'', the output of the register 22 is selected. The versatility and the flexibility of the device is improved by switching the microprogram field values in this way. |
