Abstract: Systems and methods related to generating machine code using a coroutine suspension mechanism are disclosed below. An asynchronous programming model utilizing coroutines may be implemented in a compiler for a high-level programming language. The compiler is configured to include functionality related to an intrinsic function for a suspend operation of a coroutine. In accordance with an aspect of the disclosure, a method is disclosed for generating machine code that includes the coroutine mechanism. The method includes: receiving source code for a program in a high-level programming language, and compiling the source code with a compiler to generate machine code for a target processor. The source code includes a caller and a coroutine called by the caller. The compiler is configured to detect an intrinsic function for a suspend operation in the source code for the coroutine. The compiler inserts low-level code in the machine code in accordance with an ABI.