Central processing unit having branch instruction verification unit for secure program execution
US8006078B2 · kind B2 · utility
4Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Oct 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/71
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a central processing unit (CPU) and method for executing a branch instruction of a CPU, which can protect user's data by preventing an error due to a computer virus and a hacker is provided. The CPU includes: a branch instruction verification unit which verifies whether a branch instruction is valid; and a branch instruction execution unit which executes the branch instruction when the branch instruction is valid. The method includes: verifying whether the branch instruction is valid; and not executing the branch instruction when the branch instruction is invalid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.