What’s New?

Interview with Ian Logan, author of several Sinclair ROM disassembly books.article, orig pub: 09.26.21, updated: 04.10.26

Here’s another easy-to-use command utility which quickly PRINTs a string of text at any size and at any pixel coordinate location. You will be able to use this utility in your own programs. The syntax follows: PRINT USR large;AT X,Y;W,H;”txt” The text at the end of the line can either by within quotes oruse a…article, orig pub: 10.07.22, updated: 04.07.26

This months utility will COMPRESS a typical SCREEN$ file up to as much as 1/2 its usual size. In addition, a header is automatically included in the SAVED file which will resolve the compressed SCREEN$ back to its full size onto the screen by simply using RANDOMIZE USR (address).article, orig pub: 10.07.22, updated: 04.07.26

If you’ve examined some of your programs for any of the Sinclair computers containing machine code, you’ve probably seen machine code routines called in a variety of ways. The most common calls are: where “n” represents the address where the machine code is located. How do you know which way to call a USR routine?…article, orig pub: 10.07.22, updated: 04.07.26

Over 200 pages of educational material, written to be used as a self-teaching course in beginning machine code. Many examples and tips.book, orig pub: 04.05.20, updated: 03.13.26

Subtitle: The only book you’ll ever need to become an expert at the Timex/Sinclair 1000 and 2000book, orig pub: 04.05.20, updated: 03.13.26

Practical programs to do real jobs in a variety of environments. Included is a bulk storage program, word processing, financial applications, banking uses, plus educational programs. Author pushes the ZX81 and casts aside the idea that it is too small for any real computing work.book, orig pub: 04.05.20, updated: 03.13.26

Subroutines for applied math and plotting routines, for both TS 1000 and TS 2068. Available with cassette.book, orig pub: 10.18.20, updated: 02.15.26

30 games ranging from fortune telling programs to simulation of the ecosystem.book, orig pub: 04.05.20, updated: 01.24.26

While the Timex Corporation is best known for its watches, it also produced a number of other products since its inception as a clock company in the mid-1800s. During World War II, the company produced fuse timers for defense products, continuing through the 1950s and the Korean war. After the Korean war ended, Timex expanded…company, orig pub: 06.19.19, updated: 03.17.26

A 60-room text adventure set in post-apocalyptic Manhattan, with subway transit, key-based door unlocking, and a hot air balloon escape on the rooftop.computer_media, orig pub: 03.19.26, updated: 04.06.26

A Z80 machine code earthquake effect shakes the entire screen, loaded from BASIC DATA statements into a relocatable 80-byte routine you can drop anywhere in memory.computer_media, orig pub: 07.06.24, updated: 04.06.26

A math quiz game where scrolling arithmetic problems must be answered before they breach the dam — or the valley floods.computer_media, orig pub: 04.06.26, updated: 04.06.26

A complete sprite animation toolkit with a built-in UDG editor, machine code movement engine, and self-shortening save routine — all packed into one BASIC program.computer_media, orig pub: 06.18.23, updated: 04.04.26

A utility that embeds an entire hi-res graphics screen inside a BASIC program's REM statement for archival, with Upload, Download, Invert, and Display functions driven by machine code.computer_media, orig pub: 07.29.23, updated: 04.04.26

By Wes Brzozowski version 3.0 documentation dated 1-4-86 Welcome to the wonderful world of the CLONE tape copier. this program provides some relatively easy ways to make copies of your tapes. It also allows some of the more advanced programmers to learn of the “hidden spec”, bundled away inside their program’s headers. But before describiing…document, orig pub: 06.04.24, updated: 04.07.26

1986 user manual by Thomas B. Woods for his 32K and 64K non-volatile RAM cartridge for the TS 2068, describing how to install and use the battery-backed RAM board. Congratulations on your purchase of the Universal Dock/Extension Board. This device is design to fit in the Cartridge port on the right side of your I/S…document, orig pub: 01.25.24, updated: 04.04.26

SPRITES 2068 is a machine-code sprite graphics package for the Timex Sinclair 2068 computer. It allows you to define, display, move, and manipulate graphical characters (sprites) on the screen directly from Sinclair BASIC programs. This is a machine-code sprite engine for the Timex Sinclair 2068. It is called from Sinclair BASIC by placing command strings…document, orig pub: 03.30.26, updated: 03.30.26

SPRITES 2068 is a machine-code sprite graphics package for the Timex Sinclair 2068 computer. It allows you to define, display, move, and manipulate graphical characters (sprites) on the screen directly from Sinclair BASIC programs. A “sprite” in this package is a User Defined Graphic (UDG) character or a group of UDG characters that can be…document, orig pub: 03.30.26, updated: 03.30.26

Commented disassembly of the HOME ROM.document, orig pub: 03.27.26, updated: 03.27.26

User Groups Vendorsevent, orig pub: 02.14.23, updated: 03.12.26

Vendorsevent, orig pub: 11.27.25, updated: 11.27.25

Fourth annual event. Held at the Hara Arena in Dayton, Ohio on August 28th and 29th. Tim Swenson hosted the first of several after-fest BBQs at his house in Dayton this year. Several of the attendees appear in the photos below.event, orig pub: 03.30.23, updated: 02.24.24

Organized by Tim Swenson, the West Coast Sinclair Show was held in Union City, CA, on 5 June 1999, one week after the East Coast Sinclair Show. Vendors The key visitor to the show was the renowned author Stan Kelly-Bootle, writer of many computer books, including the “Devil’s DP Dictionary”, and the holder of the…event, orig pub: 07.04.21, updated: 07.10.23

Newsletter of the Greater Cleveland Sinclair Users Group.periodical, orig pub: 07.10.22, updated: 03.13.26

Newsletter of the Sinclair Milwaukee Users Group (SMUG).periodical, orig pub: 10.02.21, updated: 03.12.26

Newsletter published by Curry Computer for the Sinclair QL.periodical, orig pub: 05.30.22, updated: 02.14.26

Fan-produced magazine for Sinclair QL owners. IQLR was produced using a Sinclair QL with a Super Gold Card, Minerva ROM, Hermes co-processor, QIMI and Keyboard-90 interfaces, Text87 and Hewlett Packard inkjet and laserjet printers.periodical, orig pub: 10.30.20, updated: 02.08.26

Cassette-based magazine supplied with several programs per tape.periodical, orig pub: 03.17.22, updated: 01.24.26

A post-apocalyptic text adventure set in a deserted Manhattan, where the player must navigate subway tunnels, city streets, a large library, a zoo, and a high-rise to retrieve medical supplies and escape by hot air balloon.product, orig pub: 12.24.19, updated: 04.06.26

Loco-Motion is an action game for the ZX Spectrum, written by Parker Brothers in 1984 as a ZX Interface 2 cartridge. Written entirely in Z80 machine code, the game puts players at the controls of a locomotive navigating railroad tracks across a scrolling countryside landscape. Players must guide their train along the rails while managing…product, orig pub: 01.04.21, updated: 03.31.26

OS-64 is a ROM that supports the Timex/Sinclair’s 64-column mode. It is fully compatible with 32 column commands and functions. The original Zebra manual is available on archive.org. OS-64 is supplied on cartridge. Insert in the TS2068’s cartridge slot (with the power turned off), then turn your computer on. The boot screen will be black…product, orig pub: 11.30.19, updated: 03.31.26

High-scoring, fast-paced chase game demands that you whiz through the maze without getting caught. Increasing levels of difficulty and great sound effects provide hours of challenge and fun.product, orig pub: 01.07.20, updated: 03.31.26

This sprite graphics demonstration and utility suite for the TS2068, built around a machine code “Sprite Service Package” loaded at address 60160, is a corrected and updated version of the sprite code from the Timex/Sinclair 2068 Technical Manual. The package accepts command strings stored in a BASIC string variable and supports commands for initializing, placing,…product, orig pub: 12.16.20, updated: 03.30.26

President: Frank DavisVice-President: Paul HolmgrenSecretary: Willie JonesTreasurer: Carol Davisusergroup, orig pub: 02.01.20, updated: 03.29.26

President: Michael E. CarverVice-President: Bill DunlopSecretary: Jack ArmstrongTreasurer: Rod GowenLibrarian: Gaylen Benchusergroup, orig pub: 02.01.20, updated: 03.13.26

Presidents: Neal Schultz, Bill HeberleinVice President: Bill Heberlein, Neal SchultzSecretary: Lloyd Dreger, Bud DankertTreasurer: Judy Frohboese, Dick CulticeDirector of Education: Dick Culticeusergroup, orig pub: 02.01.20, updated: 03.12.26

Website: https://web.archive.org/web/20161116054906/http://ncmedals.com/catug/ The user group had a BBS, using software written and maintained by Bob Swoger and hosted by his employer, Motorola. It was hosted on Digital Equipment Corporation minicomputers. Initially hosted on a PDP 11/23, it later moved to a PDP 11/60. When the PDP went down in 1990, Swoger migrated the BBS to…usergroup, orig pub: 02.01.20, updated: 02.12.26

Discussion about Bob Swoger, a long time supporter of the Timex Sinclair community.video, orig pub: 04.22.23, updated: 03.22.26

We talked about archiving milestones, tape recovery techniques, emulator development, preservation concerns, and community history.video, orig pub: 03.16.26, updated: 03.16.26

Our meeting covered keyboard Kickstarter plans, Pascal compilers, AI-assisted coding, TS-Pico debugging, and RAM expansion techniques.video, orig pub: 03.16.26, updated: 03.16.26

On this 42nd anniversary of Timex's departure from the computer industry, we discussed the announcement, the context and the impact on us individually and the community.video, orig pub: 02.22.26, updated: 02.22.26

We discussed custom keycaps for a full-size keyboard for the ZX81/TS1000, Carl and Ingo's work on getting Carl's new full-featured TS1000 going and more.video, orig pub: 02.22.26, updated: 02.22.26