Arrangement of controlling issue timing of a instruction in a vector processor

Abstract From the Canadian patent

In order to effectively accelerate issue of a RAM read instruction which is to access the same memory block as a preceding RAM write instruction, when the RAM write instruction is issued, a counter initiates counting-up of a value indicative a predetermined time duration. When the counter counts up the value, the RAM read instruction is allowed to be issued at appropriate timing. A time duration for which the RAM read instruction is prohibited to be issued, is much shorter than a time duration which expires when the RAM write instruction is completely finished. Thus, the RAM read instruction issue is not required to wait for the completion of execution of the RAM write instruction as in a …