/tags/opcodes/ Recent bookmarks tagged #opcodes Mon, 02 Nov 2026 08:24:58 +0000 http://www.pagetable.com/?p=39 "The original NMOS version of the MOS 6502, used in computers like the Commodore 64, the Apple II and the Nintendo Entertainment System (NES), is well-known for its illegal opcodes: Out of 256 possible opcodes, 151 are defined by the architecture, but many of the remaining 105 undefined opcodes do useful things."<br/> <p><strong>Tags:</strong> #6502 #c64 #hacks #hardware #oldschool #opcodes #programming</p> Sun, 03 Aug 2008 02:53:45 +0000 linkding-ssg:bookmark:11145 6502 c64 hacks hardware oldschool opcodes programming