Bi-directional copying of register content into shadow registers

摘要

Embodiments of the present disclosure describe a processor, which may include copy circuitry coupled to a shadow register file and a control register. The copy circuitry may be configured to copy content from a range of a number of registers to a shadow range of the shadow register file in a forward or backward direction. The forward or backward direction may be based at least in part on a value stored in the control register.

主权项

1. A processor comprising:
a plurality of registers; a shadow register file with a plurality of shadow registers; a control register; and copy circuitry coupled to the plurality of registers, the shadow register file and the control register, to copy content from some or all of a range of the plurality of registers to a shadow range of the shadow register file in a first or second selected direction of the shadow registers, wherein the first or second selected direction of the shadow registers is to be based at least in part on a value to be stored in the control register.