| 摘要 |
PURPOSE:To attain automatic debug by identifying a non-executable break factor and an executable break factor when a CPU breaks and specifying the set break factor when the break is based on the executable break factor. CONSTITUTION:An event detecting circuit 3 detects an execution type event and a non-executable even on the basis of information, which appear on the bus of the CPU, and executes a break request on the basis of this event. Each time the CPU is newly activated, flip-flops 9 and 10 hold the event signal of the first executable event. A branch detecting circuit 12 monitors cue status, which is outputted by the CPU, and when branch information are raised, a branch signal is outputted. The brake factor of the CPU is specified from a held signal pattern and the program of macro-function in a correspondent emulator is caused to be run. Thus, the automatic debug can be executed. |
