Differences between both ROMs and machine code locations.
Placing USR Calls in 4K, 8K PublicationSyntaxPub DetailsSyntax/Syntax ZX80 v2 n6Volume: 2 Issue: 6DateJune 1981Pages8Read the articleSee all articles from Syntax/Syntax ZX80 v2 n6 Differences between both ROMs and machine code locations. TagsSyntax 1981 Tutorial ZX80