Dynamic endian switching

Details Dynamic endian switching Dynamic endian switching

2006-11-21

2006-11-21

Chan, Eddie (Department: 2183)

Electrical computers and digital processing systems: processing

Byte-word rearranging, bit-field insertion or extraction,...

C712S039000, C712S043000, C712S229000

Reexamination Certificate

active

07139905

ABSTRACT:
The dynamic switching of a bi-endian processor between endian modes is described. A device having the bi-endian processor may also have an endian select circuit. The endian select circuit may receive a signal from the processor that determines what the endian-ness should be after the processor resets. Special instruction code may be executed by the processor in both little and big endian modes. The special instruction code may, for instance, cause a processor in a first endian mode to output a signal and reset, while the same instruction code may cause a processor in a second endian mode to neither output the signal nor reset. Instead, the processor in the second endian mode may jump to a new instruction address and proceed with normal processing.

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