US 11,853,763 B2
Backward compatibility by restriction of hardware resources
Mark Evan Cerny, Los Angeles, CA (US); and David Simpson, Los Angeles, CA (US)
Assigned to SONY INTERACTIVE ENTERTAINMENT LLC, San Mateo, CA (US)
Filed by Sony Interactive Entertainment LLC, San Mateo, CA (US)
Filed on Jun. 29, 2022, as Appl. No. 17/852,821.
Application 17/852,821 is a continuation of application No. 14/810,361, filed on Jul. 27, 2015, granted, now 11,403,099.
Prior Publication US 2022/0326951 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 9/30 (2018.01)
CPC G06F 9/30174 (2013.01) [G06F 2212/1004 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method, comprising:
with a new device executing an application on a new central processing unit (CPU), determining whether the application is for a legacy device having a legacy CPU; and in response to the new device determining that the application is for the legacy device, executing the application on the new CPU with selected available resources of the new device restricted to match a processing behavior of the legacy CPU, wherein hardware of the new device is configured by firmware of the new CPU to restrict the selected available resources by reducing a number of usable Arithmetic Logic Units (ALU) or Address Generation Units (AGU) of a core of the new CPU to match an available number of corresponding ALU or AGU of a core of the legacy CPU.