David Laine About Roles Name : David Laine Book Role Machine Code Applications for the ZX Spectrum: Expert Machine Code Techniques Author Maschinencode-Programme fur den ZX Spectrum Author Codigo Maquina: Aplicaciones Author Change Request You can request changes or additions here. You can upload files. All change requests are actioned as quickly as possible and you will be informed of the result. Details Files Your Name * Email * Details Your browser doesn't have Flash, Silverlight or HTML5 support. Submit Thank you for your change request. We will respond as soon as possible.