Patching boot code of read-only memory
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United States of America Patent
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Jan 30, 2018
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app pub date -
Feb 13, 2014
filing date -
Feb 22, 2013
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Abstract
The present disclosure describes apparatuses and techniques for patching boot code of read-only memory (ROM). In some aspects, execution of boot code from a ROM is initiated to start a boot process of a device. Execution of the boot code from the ROM is then interrupted to enable execution of other boot code, such as corrected boot code or additional boot code, from another memory. Once the other boot code is executed, execution of the boot code from the ROM is resumed to continue booting the computing device. By so doing, the corrected boot code or additional boot code can be executed during the boot process effective to patch the boot code stored in the ROM.
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