Emulating legacy hardware using IEEE 754 compliant hardware
US8352241B2 · kind B2 · utility
0Cited by
8References
19Claims
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Key dates
| Filing date | Feb 26, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | May 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/455
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Emulating legacy hardware using IEEE 754 compliant hardware is disclosed herein. In some aspects, the emulation includes locating an instruction that includes NaN (not a number) as at least one of an operand or a resultant. The emulation adjusts the resultant of the instruction, via additional code, to produce a final resultant of non-compliant (legacy) hardware. Legacy software, which was written in anticipation of processing by legacy hardware, may then be processed using compliant hardware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.