| 摘要 |
PURPOSE:To remove an interruption generating cause and to advance efficiently debugging by previously registering an instruction to be an instruction generating cause and setting up processing corresponding to an instruction registered in a replaced address information storing register. CONSTITUTION:If an instruction is executed when there is no speech path SP, I/O device I/O, or the like, the instruction to be an interruption generating cause is inputted and registered to/in a replaced instruction storing register (FNCR) 2. In addition, processing in stead of the instruction is registered in a registered address information storing register (PROR) 6 and its leading address is stored in a replaced address register (PRAR) 4. The contents of the intruction stored in an instruction storing register (IR) 1 are compared with that of the register ENCR2 by an instruction comparing function (COM) 3 every execution of the intruction. At the time of coincidence, the processing is executed in accordance with the contents of the register PROR6. |
