Bi-ended firmware system for booting computer - has CPU configured to operate in first or second byte sequence operating mode by byte sequence specifying device

摘要

The firmware system includes a CPU (15) which can be configured to operate in both a first and a second byte sequence-operating mode dependent upon the state of a byte sequence specifying device. When the CPU is reset, a second information set to the start address is recorded. The byte sequence specifying device configures the CPU to operate in the byte sequence operating mode indicated by the data element and the second programme is run. The CPU configuration is consistent with the byte sequence of the second information set. ADVANTAGE - Computer can automatically change byte sequence numbering under full software control, with byte sequence able to be changed during system boot transparent to end user.