How to start using machine code on the ZX80/81.
An Introduction to Machine Code AuthorsIan LoganPublicationSYNCPub DetailsSYNC Special Issue 1982DateSpecial Issue 1982Pages14-19Read the articleSee all articles from SYNC Special Issue 1982 How to start using machine code on the ZX80/81. TagsSYNC 1982 Machine language programming Tutorial ZX80 ZX81 PeopleIan Logan