Instruction for performing a pseudorandom number seed operation
US9424000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Dec 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/455
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A machine instruction is provided that includes an opcode field to provide an opcode, the opcode to identify a perform pseudorandom number operation, and a register field to be used to identify a register, the register to specify a location in memory of a second operand to be used. The machine instruction is executed, and execution includes obtaining a modifier field of a register associated with the machine instruction; based on the modifier field having a first value, performing a deterministic pseudorandom number seed operation, which includes obtaining seed material based on information stored in the second operand; using a 512 bit secure hash technique and the seed material to provide one or more seed values; and storing the one or more seed values in a parameter block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.