A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp) bbcmic.ro/?t=cS7bg

cs99cjb's tweet image. A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp)
bbcmic.ro/?t=cS7bg

Memory Image: Our BBC Model B in use back in the mid 1980's - with a Teletext Adapter to the left, BBC Model B in the centre, a 5¼ Floppy Drive & a 3-Button Mouse to the right - using an RGB TV/Monitor. I believe the Bowling game was downloaded via Teletext #BBCBasic #BBCModelB

daveac's tweet image. Memory Image: Our BBC Model B in use back in the mid 1980's - with a Teletext Adapter to the left, BBC Model B in the centre, a 5¼ Floppy Drive & a 3-Button Mouse to the right - using an RGB TV/Monitor. I believe the Bowling game was downloaded via Teletext #BBCBasic #BBCModelB

An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :) bbcmic.ro/?t=cSi1q

cs99cjb's tweet image. An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :)
bbcmic.ro/?t=cSi1q

#MSX #SymbOS #BBCBASIC SymbOSの中でCP/Mのエミュレータが動くという事で試してみました。 CP/MのBBCBASICが起動しました。 元々入力に問題があるので苦戦していますが、一応動いたw


BBCBASIC用にファンクションキーリストを登録するプログラムを作ったゾ! 全世界でBBCBASICをMSXで使っている沢山のお友達(推定数人)の為に公開しちゃうゼ! #MSX #BBCBASIC

FF14_hando's tweet image. BBCBASIC用にファンクションキーリストを登録するプログラムを作ったゾ!
全世界でBBCBASICをMSXで使っている沢山のお友達(推定数人)の為に公開しちゃうゼ!
#MSX #BBCBASIC

Rendered and animated by a BBC BASIC program, this illustrates how a regular heptagon can be dissected into eight pieces, which can then be re-arranged into a larger heptagon - but with a heptagonal hole in the middle! bbcbasic.co.uk/bbcsdl/ #bbcbasic


#MSX #BBCBASIC ひさしぶりにBBCBASICを起動してみた。 以前はSX-1mini+で弄ってみたんだけど、今回はturboRでサンプルプログラムを動かしてみた。 MSX専用というわけじゃないのでグラフィカルな命令は存在しない。


3D Christmas Bauble animated by 'BBC BASIC for SDL 2.0'. The music, also played by BBC BASIC, is 'Prepare Thyself, Zion' from J.S.Bach's Christmas Oratorio; it was transcribed for Z80 Music by Gerald Pye on 27th September 1981. bbcbasic.co.uk/bbcsdl/ #bbcbasic


スプライト8個動作のテスト 最初は定格動作。途中からクロックアップしてます。 すごい力業で動作させています^^; アトリビュートに転送するデータも転送先もメモリをBASICから直接書き換えてCALLしていますww ソースみたい・・? #MSX #BBCBASIC


This is John Ireland's 'Epic March' which was played at the Coronation of Queen Elizabeth II (transcribed for computer by Gerald Pye on 31st October 1981). It is accompanied by a 3D model of St Edward's Crown, animated in 'BBC BASIC for SDL 2.0'. bbcbasic.co.uk/bbcsdl/ #bbcbasic


The days when you could compile your code to the screen memory! This 16bit loop works, but fails at 65280/255=256. not sure i care... The same #BBCBasic FOR loop takes 150 seconds compared to 1 second for assembler. Could it be better? #acornelectron #assemblylanguage #6502

GilesDMiddleton's tweet image. The days when you could compile your code to the screen memory! This 16bit loop works, but fails at 65280/255=256. not sure i care... The same #BBCBasic FOR loop takes 150 seconds compared to 1 second for assembler. Could it be better?  #acornelectron #assemblylanguage #6502

Can your modern computers that don't run on BASIC do this? I think not! Embrace the awesome! #basic #bbcbasic #acornelectron #ZXSpectrum #c64 #80s #retro #retrocomputing #oldschool


I managed finally to convert an earlier version of our art program in BBC basic for windows to BBC basic for sdl. This means I can now paint on my ipad. Took a few days and used a.i for button help. This was painted very naturally with my finger just now on the iPad. #bbcbasic

pixelblip1's tweet image. I managed finally to convert an earlier version of our art program in BBC basic for windows to BBC basic for sdl.  This means I can now paint on my ipad. Took a few days and used a.i for button help. This was painted very naturally with my finger just now on the iPad. #bbcbasic

#bbcbasic #BBX80 大きなお世話な場合もあると思うけど、普通にprintしてるだけなのに右で揃えてくれてる

FF14_hando's tweet image. #bbcbasic #BBX80
大きなお世話な場合もあると思うけど、普通にprintしてるだけなのに右で揃えてくれてる

#bbcbasic #BBX80 現在開発中のBBX80 BBC BASIC(Z80)をMSX向けにカスタムしているもので、現在はスクリーン2で動いているらしい。 グラフィック命令の一部が実装されている テキストもグラフィックなので重い(漢字モードみたい)


Rendered and animated by a BBC BASIC program, this illustrates how a regular heptagon can be dissected into eight pieces, which can then be re-arranged into a larger heptagon - but with a heptagonal hole in the middle! bbcbasic.co.uk/bbcsdl/ #bbcbasic


An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :) bbcmic.ro/?t=cSi1q

cs99cjb's tweet image. An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :)
bbcmic.ro/?t=cSi1q

A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp) bbcmic.ro/?t=cS7bg

cs99cjb's tweet image. A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp)
bbcmic.ro/?t=cS7bg

#MSX #SymbOS #BBCBASIC SymbOSの中でCP/Mのエミュレータが動くという事で試してみました。 CP/MのBBCBASICが起動しました。 元々入力に問題があるので苦戦していますが、一応動いたw


Programming Etch on the BBC Micro Hi! Wow, this has taken way too long to put together, so please accept my apologies. I will aim to put more stuff out more regularly in future. ... gamingretro.co.uk/programming-et… #BBCBASIC #BBCMicro #Patreon

gamingretroUK's tweet image. Programming Etch on the BBC Micro

Hi!

Wow, this has taken way too long to put together, so please accept my apologies. I will aim to put more stuff out more regularly in future.

...

gamingretro.co.uk/programming-et…

#BBCBASIC #BBCMicro #Patreon

Programming Etch on the BBC Micro Hi! Wow, this has taken way too long to put together, so please accept my apologies. I will aim to put more stuff out more regularly in future. This... gamingretro.co.uk/programming-et… #BBCBASIC #BBCMicro #Patreon

gamingretroUK's tweet image. Programming Etch on the BBC Micro

Hi!

Wow, this has taken way too long to put together, so please accept my apologies. I will aim to put more stuff out more regularly in future.

This...

gamingretro.co.uk/programming-et…

#BBCBASIC #BBCMicro #Patreon

#BBX80M #BBCBASIC #MSX 16行目をREMにすると110~130のループになって都度アセンブルするようになる。このままだと1度だけアセンブルしてその後はコールするだけになって動作は速い。 これはMSX BIOSのGSTCKを呼び出して返り値をBASIC側で取得しているだけ。BASICの命令にSTICKが無いので。

FF14_hando's tweet image. #BBX80M #BBCBASIC #MSX
16行目をREMにすると110~130のループになって都度アセンブルするようになる。このままだと1度だけアセンブルしてその後はコールするだけになって動作は速い。
これはMSX BIOSのGSTCKを呼び出して返り値をBASIC側で取得しているだけ。BASICの命令にSTICKが無いので。

#bbx80m #bbcbasic もすこしシンプルにレジスタ受け取れないかなぁ。

FF14_hando's tweet image. #bbx80m #bbcbasic
もすこしシンプルにレジスタ受け取れないかなぁ。

ディスクにbbx80m.comとbbcファイル(BASICプログラム)いれておいてautoexec.batにbbx80m hogeと書いておくと自動的にロード・実行までやってくれる ちなみに拡張子無いとbbc扱いになります。 #bbcbasic #bbx80


#BBX80 #bbcbasic #MSX #SX1mini+ 互換機でクロックアップ+VDP高速モード使ってどうなるか試してみた。LISTのスクロールもサクサクで快適。


#BBX80 #BBCBASIC VPOKEを作ってみたので、BASICで1バイトずつ書き込んでみたらすんごく遅いのでBASIC側で用意したデータをマシン語で一気に書き込んだらさすがにキャラ(8バイト)は1舜で表示されてくれるね。


#MSX #BBCBASIC #BBX80 MSXpen以外でお手軽にマシン語の勉強も出来たりするのがいいね。 見ての通り、BASIC側とマシン語側へのデータ渡しも簡単に出来る。ポインタ渡しみたいな?


BBC BASIC (BBX80)にはPOKE/PEEKが無いんですが、このように実装出来ました #bbcbasic #bbx80

FF14_hando's tweet image. BBC BASIC (BBX80)にはPOKE/PEEKが無いんですが、このように実装出来ました
#bbcbasic #bbx80

#bbcbasic #BBX80 大きなお世話な場合もあると思うけど、普通にprintしてるだけなのに右で揃えてくれてる

FF14_hando's tweet image. #bbcbasic #BBX80
大きなお世話な場合もあると思うけど、普通にprintしてるだけなのに右で揃えてくれてる

#BBX80 #bbcbasic  BASICでこういう風に関数が作れるのってプチコンで初めて体験したんだけど、80年頃すでに実装されていたBASICがあったんだね。

FF14_hando's tweet image. #BBX80 #bbcbasic 
BASICでこういう風に関数が作れるのってプチコンで初めて体験したんだけど、80年頃すでに実装されていたBASICがあったんだね。

#bbcbasic #BBX80 現在開発中のBBX80 BBC BASIC(Z80)をMSX向けにカスタムしているもので、現在はスクリーン2で動いているらしい。 グラフィック命令の一部が実装されている テキストもグラフィックなので重い(漢字モードみたい)


David Williams's digital Christmas card from 2021, I think it was one of the last complete BBC BASIC programs he wrote before 'retiring'; an amazing talent, much missed. You can run it in your own browser at this link: wasm.bbcbasic.net/bbcsdl.html?ap… #bbcbasic


Forty years ago the original (6502) BBC BASIC had just been sent by Acorn to Hitachi for masked ROM manufacture, freezing the version that would be used in the BBC Microcomputer. And twenty years ago today the very first version of 'BBC BASIC for Windows' was released. #bbcbasic

RichardTRussell's tweet image. Forty years ago the original (6502) BBC BASIC had just been sent by Acorn to Hitachi for masked ROM manufacture, freezing the version that would be used in the BBC Microcomputer.  And twenty years ago today the very first version of 'BBC BASIC for Windows' was released. #bbcbasic

In case anybody missed it last year, BBC2 is showing 'The Morecambe & Wise Show 1970: the Lost Tape' again this evening at 9:15. I recovered the original colour from the 16mm black-and-white film recording found in an unmarked film can by Eric's son. #colourrecovery #bbcbasic

RichardTRussell's tweet image. In case anybody missed it last year, BBC2 is showing 'The Morecambe & Wise Show 1970: the Lost Tape' again this evening at 9:15. I recovered the original colour from the 16mm black-and-white film recording found in an unmarked film can by Eric's son. #colourrecovery #bbcbasic

Stages in the Morecambe & Wise Colour Recovery process: (1) B&W film scan, after undistortion, (2) residual x-distortion contour map, (3) quadrant map, (4) final colour picture. Fortunately @CrocmanSnappy was able to remove the terrible cross-colour on Eric's pyjamas! #bbcbasic

RichardTRussell's tweet image. Stages in the Morecambe & Wise Colour Recovery process: (1) B&W film scan, after undistortion, (2) residual x-distortion contour map, (3) quadrant map, (4) final colour picture.  Fortunately @CrocmanSnappy was able to remove the terrible cross-colour on Eric's pyjamas! #bbcbasic
RichardTRussell's tweet image. Stages in the Morecambe & Wise Colour Recovery process: (1) B&W film scan, after undistortion, (2) residual x-distortion contour map, (3) quadrant map, (4) final colour picture.  Fortunately @CrocmanSnappy was able to remove the terrible cross-colour on Eric's pyjamas! #bbcbasic
RichardTRussell's tweet image. Stages in the Morecambe & Wise Colour Recovery process: (1) B&W film scan, after undistortion, (2) residual x-distortion contour map, (3) quadrant map, (4) final colour picture.  Fortunately @CrocmanSnappy was able to remove the terrible cross-colour on Eric's pyjamas! #bbcbasic
RichardTRussell's tweet image. Stages in the Morecambe & Wise Colour Recovery process: (1) B&W film scan, after undistortion, (2) residual x-distortion contour map, (3) quadrant map, (4) final colour picture.  Fortunately @CrocmanSnappy was able to remove the terrible cross-colour on Eric's pyjamas! #bbcbasic

A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp) bbcmic.ro/?t=cS7bg

cs99cjb's tweet image. A palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp)
bbcmic.ro/?t=cS7bg

AgonLight2 is officially certified as Open Source Hardware by OSHWA.org #oshw #retrocomputer #bbcbasic #z80 olimex.wordpress.com/2022/12/22/ago…

Olimex's tweet image. AgonLight2 is officially certified as Open Source Hardware by OSHWA.org #oshw #retrocomputer #bbcbasic #z80 olimex.wordpress.com/2022/12/22/ago…

Happy 40th birthday to the BBC Micro (according to Wikipedia anyway). en.wikipedia.org/wiki/BBC_Micro #bbcbasic

RichardTRussell's tweet image. Happy 40th birthday to the BBC Micro (according to Wikipedia anyway). en.wikipedia.org/wiki/BBC_Micro #bbcbasic

BASIC側と変数は共有できるの楽 #MSX #BBCBASIC

FF14_hando's tweet image. BASIC側と変数は共有できるの楽
#MSX #BBCBASIC

Oh my! ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ #Elite #BBCBasic

flashdba's tweet image. Oh my! ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ #Elite #BBCBasic

#OnThisDay 1984: Micro Live had all the latest gift ideas for the computer buffs in your life.



Dr Who restorations can involve superimposing a B&W Film Recording with colour from an NTSC copy, needing the FR's optical distortion to be corrected. The image shows the vertical & horizontal distortion before (top) and after correction, done with a BBC BASIC program! #bbcbasic

RichardTRussell's tweet image. Dr Who restorations can involve superimposing a B&W Film Recording with colour from an NTSC copy, needing the FR's optical distortion to be corrected.  The image shows the vertical & horizontal distortion before (top) and after correction, done with a BBC BASIC program! #bbcbasic

How has this thread not included #repton on the #bbcbasic.. I used to sneak into school early to play this and Football Manager.

mogmachine's tweet image. How has this thread not included #repton on the #bbcbasic.. I used to sneak into school early to play this and Football Manager.
mogmachine's tweet image. How has this thread not included #repton on the #bbcbasic.. I used to sneak into school early to play this and Football Manager.

Memory Image: Our BBC Model B in use back in the mid 1980's - with a Teletext Adapter to the left, BBC Model B in the centre, a 5¼ Floppy Drive & a 3-Button Mouse to the right - using an RGB TV/Monitor. I believe the Bowling game was downloaded via Teletext #BBCBasic #BBCModelB

daveac's tweet image. Memory Image: Our BBC Model B in use back in the mid 1980's - with a Teletext Adapter to the left, BBC Model B in the centre, a 5¼ Floppy Drive & a 3-Button Mouse to the right - using an RGB TV/Monitor. I believe the Bowling game was downloaded via Teletext #BBCBasic #BBCModelB

AgonLight Open Source Hardware Retro Computer is captured in KiCad and updated by Olimex olimex.wordpress.com/2022/12/09/ago… #retrocomputer #bbcbasic #z80 #OSHW #embeded will be available for pre-order next week at special Christmas price of EUR 50 for assembled, programmed and tested board

Olimex's tweet image. AgonLight Open Source Hardware Retro Computer is captured in KiCad and updated by Olimex olimex.wordpress.com/2022/12/09/ago… #retrocomputer #bbcbasic #z80 #OSHW #embeded will be available for pre-order next week at special Christmas price of EUR 50 for assembled, programmed and tested board

An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :) bbcmic.ro/?t=cSi1q

cs99cjb's tweet image. An optimised palette of 26 named colours simulated in #bbcbasic on the #bbcmicro in screen mode 2 (160x256, 3bpp). Why store two data items when one will do? :)
bbcmic.ro/?t=cSi1q

I've today reconfigured and recalibrated my home Virtual Studio. The orientation has been changed, which involved repositioning about half the ceiling markers. Free-D (programmed in BBC BASIC) seems to be working well, 24 years or so after it was originally developed. #bbcbasic

RichardTRussell's tweet image. I've today reconfigured and recalibrated my home Virtual Studio. The orientation has been changed, which involved repositioning about half the ceiling markers. Free-D (programmed in BBC BASIC) seems to be working well, 24 years or so after it was originally developed. #bbcbasic
RichardTRussell's tweet image. I've today reconfigured and recalibrated my home Virtual Studio. The orientation has been changed, which involved repositioning about half the ceiling markers. Free-D (programmed in BBC BASIC) seems to be working well, 24 years or so after it was originally developed. #bbcbasic
RichardTRussell's tweet image. I've today reconfigured and recalibrated my home Virtual Studio. The orientation has been changed, which involved repositioning about half the ceiling markers. Free-D (programmed in BBC BASIC) seems to be working well, 24 years or so after it was originally developed. #bbcbasic

And before The One True Basic (tm) was #BBCBasic, the BBC were still getting involved

upthebuzzard's tweet image. And before The One True Basic (tm) was #BBCBasic, the BBC were still getting involved

I've released v1.26a of 'BBC BASIC for SDL 2.0', the free programming language for Windows, MacOS, Linux, Raspberry Pi, Android, iOS and in-browser. Included is a little metronome program, which is also compatible with 'BBC BASIC for Windows'. bbcbasic.co.uk/bbcsdl/ #bbcbasic

RichardTRussell's tweet image. I've released v1.26a of 'BBC BASIC for SDL 2.0', the free programming language for Windows, MacOS, Linux, Raspberry Pi, Android, iOS and in-browser.  Included is a little metronome program, which is also compatible with 'BBC BASIC for Windows'.  bbcbasic.co.uk/bbcsdl/ #bbcbasic

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