tag:blogger.com,1999:blog-3365890222783870731.post5882961087405100982..comments2023-12-20T18:00:19.665+01:00Comments on The Typethinker: QR codes on the BBC Micro, Epilogue: KryoFlux to the rescueThomas ten Catehttp://www.blogger.com/profile/02609144861191873031noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3365890222783870731.post-85964841958906352572017-01-29T15:12:25.689+01:002017-01-29T15:12:25.689+01:00Most QR codes are fairly small, as they contain ju...Most QR codes are fairly small, as they contain just a web address or some such. But they can actually grow to the “Level 40” monster code of 177×177 squares, which can hold 2953 bytes of arbitrary binary data. That’s about 60 QR codes to transfer the contents of one floppy.<br /><a href="https://www.checkmarx.com/2014/11/13/the-ultimate-list-of-open-source-static-code-analysis-security-tools/" rel="nofollow">security static code analysis</a><br />ICS Cyber Securityhttps://www.blogger.com/profile/12656113840161990349noreply@blogger.comtag:blogger.com,1999:blog-3365890222783870731.post-15959560168291136542015-05-07T12:57:05.968+02:002015-05-07T12:57:05.968+02:00To protect your BASIC programs from getting LISTed...To protect your BASIC programs from getting LISTed, you could have inserted REM statements with control characters in the comments. I used to put a clear-screen (form feed?), a few beeps (ascii 7) and then some other character that jammed up the screen somehow and required a reboot. To get these into the comments was a bit tricky. I think we used to put an ordinary comment, figure out where the comment was in RAM, then overwrite those memory locations with nasty characters.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3365890222783870731.post-54491886177960462232015-03-23T22:16:05.023+01:002015-03-23T22:16:05.023+01:00That was an incredibly good read, thanks very much...That was an incredibly good read, thanks very much for writing up your experiences of KryoFlux.<br /><br />I so wish I could get hold of the stuff I produced when I was young. Just for the nostalgia (and the laughs). Nothing like you did though, I'm very impressed!Robin Sladernoreply@blogger.com