Digital processor capable of concurrently executing external mem

Details Digital processor capable of concurrently executing external mem Digital processor capable of concurrently executing external mem

1994-06-27

1996-03-12

Treat, William M.

395427, G06F 938

Patent

active

054993482

ABSTRACT:
The digital processor includes an instruction memory, a sequencer, a decoder, and a memory reference control circuit. In case the sequencer reads the external memory reference instruction, the memory reference control circuit serves to fetch an external memory reference instruction signal and an operand of the external memory reference signal delivered from the decoder, hold the operand until the external memory cycle executed by the external memory reference instruction is terminated, and release the operand when the cycle is terminated. The sequencer serves to have succeeding instructions read out continuously while the external memory reference instruction is being executed, and to concurrently execute the read-out instructions when the read-out instructions refer to resources not occupied by the external memory reference instruction, so as to execute the read-out instructions in parallel with the external memory reference instruction, thereby improving the throughput of the total processing.

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Peter M. Kogge, The Architecture of Pipelined Computers, 1981, McGraw-Hill, pp. 171-173.

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