PURPOSE: To collect easily the data investigating the cause of an abnormal state by setting forcibly an execution address at a specific address in case a specific signal is supplied.
CONSTITUTION: In a normal operation mode an address part 4 is set to an instruction address register 2 via a switch 6 for designation of the address of the next instruction. Thus the next instruction is read out. The switch 6 is controlled by a push-button 7 of an operator console. With push of the button 7, the switch 6 is changed over so that the contents of a register 9 are transmitted through the register 2 just for a control cycle by the signal produced on a signal line 8. It is supposed that a specific fixed address is always set to the register 9. When the button 7 is pushed, the instruction of the address of the register 2 is read out to an instruction register 3. Then a microprogram starting at a microinstruction of said specific address is executed.
SASO HIDEYUKI
SATO NOBUYOSHI
HITOMI MASAHIRO
| JPS5769351A | 1982-04-28 | |||
| JPS5617450A | 1981-02-19 | |||
| JPS5742437B2 | 1982-09-08 | |||
| JPS51122349A | 1976-10-26 |