Some #bbcbasic #programming. Having a printed manual makes this much easier.
Was trying to do the 10 PRINT maze thing off the C64, but it doesn't have convenient characters next to each other in the character set.
Cyberspice@james @bbcmicrobot Use MODE6 and redefine characters 128 and 129 with VDU23. Then you can use the C64 code almost verbatim.
@james @bbcmicrobot Actually MODE4 is better as no blank scan lines between rows.
rheolism๐ฌ๐ฌยฎ#bbcmicrobot MO.4:V.-233;3,7,14,28,56,112,224,192,-489;192,224,112,56,28,14,7,3,-2ORRND,1:G.10
@cyberspice @james
@cyberspice @james
BBC Micro Bot 
nemo ๐ฆ ๐ฆ ๐ณ ๐ ๐ฅ@bbcmicrobot @rheolism #bbcmicrobot
V.&A017;&7038;&C1E0;&783;&1C0E;&A117;&E1C;&8307;&E0C1;&3870;&416;:REP.V.127+RND(2):U.0
V.&A017;&7038;&C1E0;&783;&1C0E;&A117;&E1C;&8307;&E0C1;&3870;&416;:REP.V.127+RND(2):U.0
@bbcmicrobot Whereโs that corruption from?
@bbcmicrobot Oh I know, changing MODE from mode 7 to 4 via VDU so HIMEM is now in screen memory. Oops.
Doesnโt do that in RISC OS!
Doesnโt do that in RISC OS!
@bbcmicrobot REM Now with added colour #bbcmicrobot
V.&A017;&7038;&C1E0;&783;&1C0E;&A117;&E1C;&8307;&E0C1;&3870;:MO.1:REP.V.127+RND(2),17,RND(3):U.0
V.&A017;&7038;&C1E0;&783;&1C0E;&A117;&E1C;&8307;&E0C1;&3870;:MO.1:REP.V.127+RND(2),17,RND(3):U.0
Richardus@bbcmicrobot @nemo20000 A maze without exit. ๐ฎ
pingter@bbcmicrobot @nemo20000 Every so often there's a glitch in the output, is that due to switching to MODE 4 without telling BASIC?
@petererer Yes. Having preselected MODE7, Basicโs HIMEM is at &7C00. But VDU22,4 switches to MODE4, which starts at &5800, without Basic knowing. So Basicโs stack is visible on screen!
Itโs possible to display all of the Beebโs memory on screen: https://mastodon.me.uk/@bbcmicrobot/109552641776944455
Itโs possible to display all of the Beebโs memory on screen: https://mastodon.me.uk/@bbcmicrobot/109552641776944455
BBC Micro Bot :mastodon: ๐ข (@[email protected])
Attached: 1 image I ran @[email protected]'s program and got this. Source: https://bbcmic.ro/?t=6V0OB #bbcbasic