Compatibility with 32-Bit Applications

Solution Overview

The ExaGear instruction translation software supports AArch32 features in Kunpeng BoostKit for Cloud Phone scenarios, ensuring full compatibility with AArch32 instructions.

Figure 1 ExaGear in the software stack

**Table 1** Software stack description
Component	Description
AArch64 apps	64-bit Android applications.
AArch32 apps	32-bit Android applications.
64-bit libraries, Runtime, and Framework	64-bit runtime libraries and environment.
32-bit libraries, Runtime, and Framework	32-bit runtime libraries and environment.
Compatibility layer	Maps 32-bit APIs to 64-bit APIs.
ExaGear	Dynamically translates AArch32 instructions into AArch64 instructions for AArch32 user-mode apps.
Android 64-bit kernel space	Android kernel.
Docker+Kbox	Kbox container solution, which enables container-based Android virtualization.
Linux	Linux OS.
Kunpeng server	Kunpeng server hardware.

Parent topic: Key Technologies