File list
This special page shows all uploaded files.
| Date | Name | Thumbnail | Size | User | Description | Versions |
|---|---|---|---|---|---|---|
| 15:49, 14 February 2016 | Mode7vsTeletext.png (file) |  |
86 KB | Lurkio | 2 | |
| 11:38, 14 September 2020 | ModelA Motherboard.jpg (file) |  |
153 KB | Cverrier | BBC Model A - Lid and keyboard removed | 1 |
| 13:15, 13 September 2020 | ModelBplus.jpg (file) |  |
90 KB | Cverrier | BBC Microcomputer Plus 64 | 1 |
| 20:35, 8 March 2015 | NMI timing diagram.png (file) |  |
39 KB | WikiSysop | Diagram of worst case timings of interrupt service routines for quad density floppy disc access. According to Sonninen et al. in "64doc", to interrupt the next instruction the NMI must arrive before the last cycle of the current instruction. Thus, in the | 1 |
| 03:48, 16 October 2021 | NegativeInkeyHEX.jpg (file) |  |
139 KB | Mikroman3526 | HEX values added | 1 |
| 20:35, 8 March 2015 | Nmi rdio 16us check.png (file) |  |
21 KB | WikiSysop | Extended timing diagrams for the worst case of reading to I/O memory. NMIs must be no less than 16 − ε µs apart. The ε (epsilon) means that in the worst case the NMIs will just miss one decision point and just catch the next. There are two CPU timing | 1 |
| 23:43, 13 December 2015 | OSWRCH output fanout.png (file) |  |
25 KB | Regregex | Code points and intercept box | 2 |
| 20:41, 22 February 2016 | PDP11 BBC BASIC.jpg (file) |  |
66 KB | Jgharston | Reverted to version as of 22:05, 15 February 2016 | 3 |
| 13:55, 13 September 2020 | Plus 3 fitted.jpg (file) |  |
77 KB | Cverrier | Acorn Plus Three expansion module | 1 |
| 20:36, 8 March 2015 | Prison gameplay screenshot.png (file) |  |
2 KB | WikiSysop | "The Prison" from ''Doctor Who: The First Adventure'' (BBC Soft, 1983) gameplay screenshot, showing a typical <code>MODE 2</code> display. | 1 |
| 20:36, 8 March 2015 | Screwball intro screenshot.png (file) |  |
9 KB | WikiSysop | ''Screwball'' (MRM Software, 1984) intro screenshot, showing a colourful <code>MODE 7</code> text display. | 1 |
| 20:37, 8 March 2015 | Serial ULA pinout.png (file) |  |
2 KB | WikiSysop | Pinout of the VLSI Serial Processor, VC 2026/201647. The Ferranti Serial ULA is pin-compatible but lacks frequency level inversion. Based on scans of the BBC Micro circuit diagram formerly archived at The BBC Lives! | 1 |
| 20:37, 8 March 2015 | Serial ULAs.jpg (file) |  |
22 KB | WikiSysop | The two pin-compatible serial processors used in the BBC Micro and Master series: the Ferranti Serial ULA (2C199E-7, top) and the VLSI Serial Processor or SERPROC (VC2026/201648, bottom). There was a subtle difference in the functionality of the chips. | 1 |
| 20:38, 8 March 2015 | Space Invaders gameplay screenshot.png (file) |  |
4 KB | WikiSysop | ''Space Invaders'' (Acornsoft, 1982) gameplay screenshot, showing a colourful MODE 7 graphics display. | 1 |
| 13:14, 13 September 2020 | SpeechUpgrade.jpg (file) |  |
74 KB | Cverrier | BBC Micro Speech Synthesis upgrade | 1 |
| 20:38, 8 March 2015 | Starship Command gameplay screenshot.png (file) |  |
1 KB | WikiSysop | ''Starship Command'' (Acornsoft, 1983) gameplay screenshot, showing a typical <code>MODE 4</code> display. | 1 |
| 20:39, 8 March 2015 | Street Machine gameplay screenshot.png (file) |  |
4 KB | WikiSysop | ''Street Machine'' (Software Invasion, 1986) gameplay screenshot, showing a rich <code>MODE 2</code> display. | 1 |
| 00:37, 13 October 2016 | Teletext Engineering Test Page.png (file) |  |
12 KB | Jgharston | 2 | |
| 20:39, 8 March 2015 | Terrordactyls gameplay screenshot.png (file) |  |
692 bytes | WikiSysop | "The Terrordactyls" from ''Doctor Who: The First Adventure'' (BBC Soft, 1983) gameplay screenshot, showing a typical <code>MODE 1</code> display. | 1 |
| 20:40, 8 March 2015 | Text window.png (file) |  |
2 KB | WikiSysop | Defining a text window in <code>MODE 4</code>, using <code>VDU 28</code>. The distances are measured in character cells, and always from the top left corner of the screen. The size of the character cells, and thus the window's position on the screen | 1 |
| 14:53, 14 September 2020 | The-acorn-ieee-interface-for-the-bbc-microcomputer.jpg (file) |  |
51 KB | Cverrier | IEEE Interface promotional picture | 1 |
| 20:40, 8 March 2015 | Tomcat gameplay screenshot.png (file) |  |
7 KB | WikiSysop | ''Tomcat'' (Players, 1989) gameplay screenshot, showing a rich <code>MODE 4</code> display. | 1 |
| 20:41, 8 March 2015 | User defined stick figure.png (file) |  |
2 KB | WikiSysop | Defining a user character with <code>VDU 23</code>. This bitmap can be assigned to character 224 using the following statement: <pre>VDU 23,224,28,28,8,127,8,20,34,65</pre> Regregex 20:43, 13 December 2007 (UTC) | 1 |
| 22:12, 7 October 2017 | Video ULA pinout.png (file) |  |
3 KB | Regregex | corrected pins 15, 16 to V2, V1 | 2 |
| 20:42, 8 March 2015 | Video ULA serialisation block diagram.png (file) |  |
8 KB | WikiSysop | Block diagram equivalent to the video generation function of the Video ULA in <code>MODE</code>s 0–6. In <code>MODE 7</code> the ULA repeats the RGB Teletext inputs, not shown. My own work. | 1 |
| 20:42, 8 March 2015 | Vortex gameplay screenshot.png (file) |  |
970 bytes | WikiSysop | ''Vortex'' (Software Invasion, 1983) gameplay screenshot, showing a typical <code>MODE 4</code> display. | 1 |
