More than two years ago, Sinclair announced that the 4K ROM of the ZX80 would be expanded to an 8K ROM and that one of the new commands would be DRAW. DRAW was just what it sounded like— a command to draw a line on the TV screen. But DRAW never came to be. Even
You have just inherited $10,000 from a wealthy uncle who made it big on the stock market. He also gave you the modem number of his broker, a computer. The ZX Stock Exchange carries stocks listed on the New York Stock Exchange as well as stocks not listed there.
The ZX Stock Exchange Read More »
If you have ever thrown down your TS1000 User Manual in despair— or disgust, help has finally arrived: David Liens Learning Timex Sinclair Basic. It is a clear, thorough guide to programming the Timex Sinclair 1000, but ZX81 and ZX80 users are not ignored. No matter how “learner friendly” the manual for the new TS1500
Learning Timex Sinclair Basic Read More »
Byteing Deeper into Your Timex Sinclair 1000 is catchy title, but do not take it too literally since the book was originally written for the ZX81 and retitled. Nevertheless, the content applies completely to the TS 1000. More importantly though, it does not just “byte” deeper than the User”s Manual, it covers many of the
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New computers, software libraries, compilers and assemblers, magazines, hardware developments (joysticks, printer interfaces, modems, tape copiers).
Letter from England (Sync v3 n5) Read More »
In the pages of the ZX81 manual, we find a Basic subroutine to draw a line between any two specified points (see Listing 1). However, I found this routine to be exceedingly slow, especially when I wanted to draw several lines on the screen and had to wait several agonizing minutes to get them. The
A Machine Code Graphics Line Drawing Subroutine Read More »
Have you ever wished for an easier way to create graphics displays on your Sinclair computer? You can always use a line drawing program and a table of coordinates, but setting up the table can be tedious. The LOGO language, developed by the artificial intelligence group at MIT, has a graphics system called Turtle Graphics
65 byte machine code routine that allows you to digitize and store the data for any sound phrase on your ZX/TS computer with 16K RAM.
