Mastodawn

EdS Apr 23, 2025

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

ARM and RISC on the BBC's Micro File (1987)

In this short television program we get a brief interview with John Hennessy about the RISC philosophy (starts about 13:16 in the video) and we then get Fred Harris explaining about Acorn’s new RISC processor - ARM. (Clearer version at the Computer Literacy Project minisite, possibly geoblocked, here) “The evaluation system has been around for some time, priced at about £4500, but this is the first public showing of Acorn’s development machine. It’s about 35 times faster than an IBM PC and in...

Retro Computing

Jeremy Rayner Nov 5, 2022

#retrocomputing Trying out my new magic keyboard for the iPad Pro, with split view I can have the excellent #JSBeeb emulator for the #bbcmicro on one side, whilst having the program listing I am following on the other. #InputMagazine was such a well produced feast of code for many systems. Thanks to @mattgodbolt for a great emulator, I just have to figure out why the full screen emulator option is not working now…

Ed S Mar 28, 2021

Owlet: edit and run a BBC Basic program in your browser.

https://bbcmic.ro/#%7B%22v%22%3A1%2C%22program%22%3A%22P%3DSQR%282%29%5CnQ%3DP%2F2%5CnPRINT%202%2FQ%5CnP%3DSQR%282%2BP%29%5CnQ%3DQ*P%2F2%5CnIF%20P%3C1.9999999%20GOTO%2030%22%7D

#retrocomputing #bbcmicro #BBCBasic

Owlet BBC BASIC Editor

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Ed S Oct 10, 2020

Not only an archive of all (non-educational) bbcmicro games, but with metadata, downloadable images, cross-references to variants, and most importantly directly playable in the browser with #jsbeeb!

Some modern games in there too - quite stunning what people can wring out of an old platform!

#bbcmicro #retrocomputing #acorn

@sohkamyung

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