Abstract: An application executing on a computing device may invoke a function call of a first function. The computing device may support a bundled application library of functions and a native library of functions. It may be determined that code for executing the first function exists in both the bundled application library and the native library, and the application may execute the first function using the code in the native library. While the application continues execution on the computing device, the application may invoke a function call of a second function. It may be determined that, of the bundled application library and the native library, the code for executing the second function exists in the bundled application library. The application may execute the second function using the code in the bundled application library.

Abstract: An application executing on a computing device may invoke a function call of a first function. The computing device may support a bundled application library of functions and a native library of functions. It may be determined that code for executing the first function exists in both the bundled application library and the native library, and the application may execute the first function using the code in the native library. While the application continues execution on the computing device, the application may invoke a function call of a second function. It may be determined that, of the bundled application library and the native library, the code for executing the second function exists in the bundled application library. The application may execute the second function using the code in the bundled application library.

Abstract: An application executing on a computing device may invoke a function call of a first function. The computing device may support a bundled application library of functions and a native library of functions. It may be determined that code for executing the first function exists in both the bundled application library and the native library, and the application may execute the first function using the code in the native library. While the application continues execution on the computing device, the application may invoke a function call of a second function. It may be determined that, of the bundled application library and the native library, the code for executing the second function exists in the bundled application library. The application may execute the second function using the code in the bundled application library.

Abstract: Methods and systems for providing compatibility of applications with multiple versions of an operating system are provided. The method may comprise receiving, by a device, a request to perform a function-call of an application that references features of a first version of an operating system. The method also includes determining whether a version of the operating system and a system library on the device supports the function-call of the application so as to be able to perform dynamic compilation of code in the system library for the function-call at run-time, and based on the determination, accessing a compatibility library associated with the application that includes pre-compiled code for execution by a given device having a given version of the operating system other than the first version of the operating system. The method also includes at run-time, performing the function-call using corresponding pre-compiled code from the compatibility library.

Abstract: Methods and systems for providing compatibility of applications with multiple versions of an operating system are provided. The method may comprise receiving, by a device, a request to perform a function-call of an application that references features of a first version of an operating system. The method also includes determining whether a version of the operating system and a system library on the device supports the function-call of the application so as to be able to perform dynamic compilation of code in the system library for the function-call at run-time, and based on the determination, accessing a compatibility library associated with the application that includes pre-compiled code for execution by a given device having a given version of the operating system other than the first version of the operating system. The method also includes at run-time, performing the function-call using corresponding pre-compiled code from the compatibility library.

Abstract: Systems and methods may be provided for lookahead instruction fetching for processors. The systems and methods may include an L1 instruction cache, where the L1 instruction cache may include a plurality of lines of data, where each line of data may include one or more instructions. The systems and methods may also include a tagless hit instruction cache, where the tagless hit instruction cache may store a subset of the lines of data in the L1 instruction cache, where instructions in the lines of data stored in the tagless hit instruction cache may be stored with metadata indicative of whether a next instruction is guaranteed to reside in the tagless hit instruction cache, where an instruction fetcher may be arranged to have direct access to the L1 instruction cache and the tagless hit instruction cache, and where the tagless hit instruction cache may be arranged to have direct access to the L1 instruction cache.

Abstract: Systems and methods may be provided for lookahead instruction fetching for processors. The systems and methods may include an L1 instruction cache, where the L1 instruction cache may include a plurality of lines of data, where each line of data may include one or more instructions. The systems and methods may also include a tagless hit instruction cache, where the tagless hit instruction cache may store a subset of the lines of data in the L1 instruction cache, where instructions in the lines of data stored in the tagless hit instruction cache may be stored with metadata indicative of whether a next instruction is guaranteed to reside in the tagless hit instruction cache, where an instruction fetcher may be arranged to have direct access to the L1 instruction cache and the tagless hit instruction cache, and where the tagless hit instruction cache may be arranged to have direct access to the L1 instruction cache.