| 摘要 |
PURPOSE:To display the operation of each CPU in an extremely easy-to-see way by reading out bus signals based on the trace data showing an executing CPU, and displaying those signals at a display part for each one of plural CPU. CONSTITUTION:When an executing command of a program is supplied to a control part 7 from an input part 1, the part 7 starts a target CPU 3 for execution of a program. Then the state of an address bus of the CPU 3 and the state of a CPU status signal 8 are stored successively into a RAM.I 7a and a RAM.II 7b respectively as soon as the execution of the program is started. Here the part 7 reads out the bus signals according to the trace data on the signal showing the executing CPU 3, and displays those bus signals for CPU.A 3a and CPU.B 3b respectively when the part 7 displays the trace result at a display part 2 with an indication of the part 1.
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