Here is for example a memory allocator used in micro:bit https://github.com/lancaster-university/codal-core/blob/master/source/core/CodalHeapAllocator.cpp https

Here is for example a memory allocator used in micro:bit https://github.com/lancaster-university/codal-core/blob/master/source/core/CodalHeapAllocator.cpp https://github.com/lancaster-university/codal-core/blob/mast... It's quite simple and extensively commented.