| 摘要 |
PURPOSE:To speed up bit logic operation processing by allowing a bit logic operation instruction custom LSI to automatically execute bit logic operation without passing a central operation processing part. CONSTITUTION:A bit logic operation frequency counter 14 in the bit logic operation instruction custom LSI 2 counts up the bit logic operation frequency in a bit logic operation execution part 9 and a bit logic operation frequency specifying register 12 specifies the bit logic operation frequency by an instruction outputted from the central operation processing part 1. The contents of the counter 14 are compared with that of the register 12 by a bit logic operation completion detecting part 13 and the completion of bit logic operation is detected. Consequently, a bit logic operation executing part 9 can rapidly execute continuous bit logic operation processing. |
