| 摘要 |
PURPOSE:To attain efficient error retrieval when an error to which the apply of program processing is impossible occurs by providing a means stopping the trace at the generation of error to an emergent control circuit. CONSTITUTION:When counters 31a, 31b overflow, the emergent control circuit (EMA)29 is started, which increments the state by +1, selects a clock of the leading system, clears the selected system for initial setting and also clears the channel. Then, microprogram control is started. A control memory 52 has a micro instruction, its output is connected to an R bus 53a and a register 53b, an output of the register 53b is decoded by a decoder 54 and the content of the R bus 53a is written in a register 13. When an error occurs and an overflow output of a counter is inputted to an SEQ51 via the EMA29, a microprogram for operating emergency control is run and the contents of the R bus 53a are all 0, this content is written in the register 13 and the trace is stopped. |
