@abcdw @ekaitz_zarraga @janneke @efraim Unlikely to be simpler. Currently x86 bootstrap chain starts with hex0 which is far smaller, just 256 bytes. And that's including 84-byte ELF32 header and 75 bytes dealing with file I/O and exiting program. So the rest (actual hex0 algoritm) is 97 bytes and that includes two types of comments and supports both lowercase and uppercase hex numbers (supporting just one type of comment and one set of hex numbers could bring it down from 97 bytes to maybe 87)