| 摘要 |
PURPOSE:To monitor an oscillation state at the time of simulating a logical circuit by providing the title system with a means for monitoring a logical value on a feedback signal line. CONSTITUTION:Although some logical circuit fixes its output value (output value of level 5), oscillation may be generated in its inside (level 2-4). Since oscillation is generally generated by possitive feedback, the oscillation can be surely detected by allowing a logical value propagation monitoring means 21 to monitor the logical values of feedback signal lines 31, 32 in a feedback group. |
