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14 posts6 participants1 post today

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 8h

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @RLabibov's program and got this.
Source: https://bbcmic.ro/?t=c1lPM #bbcbasic

GIF

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 15h

15h

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c1eWU #bbcbasic

GIF

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 16h

16h

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c1dZn #bbcbasic

BBC Micro Bot graphics output - I <3 teletext

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 17h

17h

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c1dOw #bbcbasic

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 1d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @kweepa's program and got this.
Source: https://bbcmic.ro/?t=c0NWn #bbcbasic

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 2d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @RLabibov's program and got this.
Source: https://bbcmic.ro/?t=c0qfl #bbcbasic

GIF

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 2d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @RLabibov's program and got this.
Source: https://bbcmic.ro/?t=c0q86 #bbcbasic

GIF

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 2d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @RLabibov's program and got this.
Source: https://bbcmic.ro/?t=c0pUi #bbcbasic

GIF

Replied in thread

**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 3d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c0boV #bbcbasic

BBC Micro Bot graphics output - Face in a teletext tunnel

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 3d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c0b1G #bbcbasic

BBC Micro Bot graphics output - re: A Battle-weary Dwarven Warrior, rendered in teletext (attempt 2)

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 3d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c0aYO #bbcbasic

BBC Micro Bot graphics output - A Battle-weary Dwarven Warrior, rendered in teletext

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 3d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=c06Zj #bbcbasic

GIF

Replied in thread

**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 3d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @kweepa's program and got this.
Source: https://bbcmic.ro/?t=c04X2 #bbcbasic

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · 4d

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @kweepa's program and got this.
Source: https://bbcmic.ro/?t=bZNgl #bbcbasic

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · May 4

May 4

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=bYHI8 #bbcbasic

BBC Micro Bot graphics output - Pattern generated using MOD and EOR (version without rocket mode)

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · May 3

May 3

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @rheolism's program and got this.
Source: https://bbcmic.ro/?t=bYint #bbcbasic

GIF

**EdS** @EdS@mathstodon.xyz · May 3

May 3

EdS @EdS@mathstodon.xyz

Weekend coding challenge: Turing's tricky tape teaser

**EdS** @EdS@mathstodon.xyz · Apr 23

Apr 23

EdS @EdS@mathstodon.xyz

BBC Basic graphics demo - done in 700s on a BBC Micro(*)

Source code in the alt text. Or below. Program is called "3D" and was shown in the BBC's Computer Literacy Program, in Micro Live 2. See
https://retrocomputingforum.com/t/arm-and-risc-on-the-bbcs-micro-file-1987/4435

https://bbcmic.ro/#%7B%22v%22%3A1%2C%22program%22%3A%2210REM%20%3E%203D%5Cn11REPEAT%5Cn12TIME%3D0%5Cn20MODE0%3AVDU29%2C640%3B512%3B%3AXS%3D2%3AYS%3D6*4%5Cn30VDU23%2C1%2C0%3B0%3B0%3B0%3B%5Cn40ON%20ERROR%20GOTO%20190%5Cn50A%3D640%3AB%3DA*A%3AC%3D512%5Cn60Z%3D1%2F3%3AO%3D24%2FA%3AC%3DC%2FA%5Cn70O%25%3D%2645%5Cn80FORX%25%3D0TOA%20STEPXS%3AS%3DX%25*X%25%5Cn90P%3DSQR%28B-S%29%3AM%3D-P*Z%3AN%3DM%5Cn100PLOT69%2C-X%25%2CM%3APLOT69%2CX%25%2CM%5Cn110FORI%3DYS-P%20TOP%20STEPYS%5Cn120R%3DSQR%28S%2BI*I%29%5Cn130Y%3DI*Z%2B%28R-A%29*SIN%28O*R%29*C%5Cn140IFY%3EM%20M%3DY%3AGOTO170%5Cn150IFY%3EN%20NEXT%2C%3ASTOP%5Cn160N%3DY%5Cn170PLOT69%2C-X%25%2CY%3APLOT69%2CX%25%2CY%5Cn180NEXT%2C%5Cn181PRINT%20%5C%22Done%20in%20%5C%22TIME%2F100%5C%22s%5C%22%5Cn182STOP%5Cn185UNTIL%200%5Cn190ON%20ERROR%20OFF%5Cn200CLS%5Cn210MODE1%5Cn220VDU23%2C1%2C0%3B0%3B0%3B0%3B%5Cn230*EXEC%20BASICBM%5Cn%5Cn%22%7D

(*) in-browser emulation!

#retrocomputing #bbcbasic #bbcmicro #jsbeeb
#owlet

monochrome computer screen reading "Done in 700.6s" and "STOP at line 182"

Most of screen is a hidden-line removed rotationally symmetrical shape with vertical axis of symmetry, delineated by lines in planes parallel to the screen surface

program is as follows
10REM > 3D
11REPEAT
12TIME=0
20MODE0:VDU29,640;512;:XS=2:YS=6*4
30VDU23,1,0;0;0;0;
40ON ERROR GOTO 190
50A=640:B=A*A:C=512
60Z=1/3:O=24/A:C=C/A
70O%=&45
80FORX%=0TOA STEPXS:S=X%*X%
90P=SQR(B-S):M=-P*Z:N=M
100PLOT69,-X%,M:PLOT69,X%,M
110FORI=YS-P TOP STEPYS
120R=SQR(S+I*I)
130Y=I*Z+(R-A)*SIN(O*R)*C
140IFY>M M=Y:GOTO170
150IFY>N NEXT,:STOP
160N=Y
170PLOT69,-X%,Y:PLOT69,X%,Y
180NEXT,
181PRINT "Done in "TIME/100"s"
182STOP
185UNTIL 0
190ON ERROR OFF
200CLS
210MODE1
220VDU23,1,0;0;0;0;
230*EXEC BASICBM

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**BBC Micro Bot** @bbcmicrobot@mastodon.me.uk · Apr 23

Apr 23

BBC Micro Bot @bbcmicrobot@mastodon.me.uk

I ran @bazzargh's program and got this.
Source: https://bbcmic.ro/?t=bUsLO #bbcbasic

Continued thread

**JdeBP** @JdeBP@mastodonapp.uk · Apr 20

Apr 20

JdeBP @JdeBP@mastodonapp.uk

J. G. Harston running BBC BASIC on a real PDP-11 running 2BSD is quite wild, too.

All of the ingredients for BASIC on Unix on PDP-11 emulation on Raspberry Pi as a second processor for a BBC Master are there, it seems. (-:

https://youtube.com/watch?v=vrhrl2PNvig

YouTubePDP11 BBC BASIC for Unix BSD 2.11, part 3.By Jonathan Harston

#BSD #BBCBASIC #PDP11

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