ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,220, issued on June 24, was assigned to Arm Ltd. (Cambridge, Great Britain).
"Register mapping to map architectural registers to corresponding physical registers based on a mode indicating a register length" was invented by Quentin Eric Nouvel (Antibes, France), Luca Nassi (Antibes, France), Albin Pierrick Tonnerre (Nice, France) and Geoffray Matthieu Lacourba (Nice, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Mode change detection circuitry detects a mode change when processing circuitry switches between first and second modes of processing in which a first set of architectural registers are designated as having different register lengths...