Method and circuit implementation for multiple-word transfer...

Details Method and circuit implementation for multiple-word transfer... Method and circuit implementation for multiple-word transfer...

2007-01-12

2009-12-01

Treat, William M (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Processing control for data transfer

Reexamination Certificate

active

07627743

ABSTRACT:
A multi-word transfer instruction, a memory transfer method using the multi-word transfer instruction and a circuit implementation for transferring multiple words between a memory subsystem and a processor register file are provided. The multi-word transfer instruction specifies an access type (load or store), a consecutive register group, a selection mask and a base register for the starting address of the corresponding memory locations. Therefore, the total number of words accessed by this instruction is equal to the number of registers specified in the consecutive register group along with the number of the registers specified by the selection mask. Besides, additional information, such as an address update mode, an order mode and a modification mode, may be further specified in the multi-word transfer instruction.

REFERENCES:
patent: 4814976 (1989-03-01), Hansen et al.
patent: 5583804 (1996-12-01), Seal et al.
patent: 7243213 (2007-07-01), Pagni et al.
Andrew S. Tanenbaum, Structured Computer Organization, Prentice-Hall, 1984, pp. 11-12.

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