Richard B Wilmot, 813130 Withers Ave, Lafayette, CA 94549

5553285, Sep 3, 1996

Jun 9, 1995

8/489267

Arno S. Krakauer - San Jose CA
Dieter Gawlick - Palo Alto CA
John A. Colgrove - Mountain View CA
Richard B. Wilmot - Lafayette CA

Amdahl Corporation - Sunnyvale CA

G06F 1100
G06F 1300
G11C 800

395600

A file system for managing data files for access by a plurality of users of a data processing system that includes internal storage for buffering, external storage, and a file user interface by which the plurality of users request access to data files. A first level, coupled to the file user interface in the internal storage allocates the internal storage for temporary storage of data to be accessed by the plurality of users, and generates requests for transactions with external storage in support of such allocations. A second level is coupled to the first level and the external storage and responds to the request for transactions with the external storage for managing the transactions for storage of data to, and retrieval of data from, the external storage. The second level defines a plurality of physical storage classes which are characterized by pre-specified parameters that allocate data files subject of transactions to locations in external memory. In response to requests for transactions, the second level identifies one of the plurality of storage classes assigned to the data file subject of the transaction and carries out the transaction with the appropriate locations in external memory.

5974538, Oct 26, 1999

Feb 21, 1997

8/804175

Richard Byron Wilmot - Lafayette CA

G06F 938

712218

A method for forwarding operands directly between instructions operates in a computer central processing unit. Values for registers, condition codes, stack locations and memory storage locations are routed directly from the program instructions or microcode that alter them to the instructions that use those operands. Instructions that have received all needed operands are started and their resulting output operands are forwarded to other instructions. With direct forwarding of operands, normal locations for operands may often be skipped so that simpler designs can be employed in constructing the operand storage for register files and stacks. Operands receiving newer values never appear in program-visible locations if the prior values were forwarded to all instructions that might need them and those receiving instructions are completed. In executing program loops, loop-dependent variables are identified. A method is shown whereby multiple loop-dependent operands are computed substantially simultaneously.

4993030, Feb 12, 1991

Apr 22, 1988

7/185179

Arno S. Krakauer - San Jose CA
Dieter Gawlick - Palo Alto CA
John A. Colgrove - Mountain View CA
Richard B. Wilmot - Lafayette CA

Amdahl Corporation - Sunnyvale CA

G11C 800
G06F 1300
G06F 1100

371 401

A file system for managing data files for access by a plurality of users of a data processing system that includes internal storage for buffering, external storage, and a file user interface by which the plurality of users request access to data files. A first level, coupled to the file user interface in the internal storage allocates the internal storage for temporary storage of data to be accessed by the plurality of users, and generates requests for transactions with external storage in support of such allocations. A second level is coupled to the first level and the external storage and responds to the request for transactions with the external storage for managing the transactions for storage of data to, and retreival of data from, the external storage. The second level defines a plurality of physical storage classes which are characterized by pre-specified parameters that allocate data files subject of transactions to locations in external memory. In response to requests for transactions, the second level identifies one of the plurality of storage classes assigned to the data file subject of the transaction and carries out the transaction with the appropriate locations in external memory.