wasmer_emscripten/storage.rs
// use crate::webassembly::Memory;
pub fn align_memory(ptr: u32) -> u32 {
(ptr + 15) & !15
}
pub fn static_alloc(static_top: &mut u32, size: u32) -> u32 {
let old_static_top = *static_top;
// NOTE: The `4294967280` is a u32 conversion of -16 as gotten from emscripten.
*static_top = (*static_top + size + 15) & 4294967280;
old_static_top
}