Instruction for performing a pseudorandom number seed operation
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United States of America Patent
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Dec 1, 2015
Issued Date -
N/A
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2013
priority date (Note) -
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status (Latency Note)
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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.
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