| A Practical Guide to Machine Language Programming on the Timex/Sinclair | I like this book. It’s well written, stays on point, applies directly to your ZX/TS, includes operable program listings and lets you learn painlessly. Using only 16 chapters and 8 appendices, Dave takes you on a guided tour of the Z80 in Sinclair country, distinguishing the CPU properties from the system behavior with clarity and flair. | Sinclair ZX81, Timex/Sinclair 1000, Timex/Sinclair 2068 |
| Comparative ROM Atlas: From ZX Spectrum to 2068 | To convert SPECTRUM software to the 2068, you need the location and function of ROM routines in each. You can buy the annotated ROM disassembly from Melbourne House or Zebra Systems. Timex sells the 2068 technical manual. Our cross-index links the two ROMs. | Sinclair ZX Spectrum, Timex/Sinclair 2068 |
| Key-finder Card | Some things turn out more useful than you would at first think - this card is one of them. When I first got it, I stuck it on the 2068 test setup—what harm could it do? But I shift computers all day using the entire Sinclair family plus Osbornes and TRS-80's. I save a few minutes each time I use the 2068 by finding functions without scanning the whole keyboard twice. | Timex/Sinclair 2068 |
| New Products and Services (Syntax v5 n10) | Cryptic Gold; fifth generation computing; ZX-Calc accounting system; budget robotics; graphics tablet from Zebra; programmer's market; monitor tuners; Oddball Software Magazine. | Sinclair ZX81, Timex/Sinclair 2068 |
| Sinclair Considers Selling Spectrum+ in US | Sinclair informs SYNTAX that they are considering selling Spectrum+ in the US. | Sinclair ZX Spectrum |
| Sinclair Develops 1-mbyte Memory Wafer | According to reports in EE Times, Sinclair Radionics has developed wafer-scale, serial-access memory with battery backup using a 12-year-old technique to connect low-power NMOS dynamic RAM cells in a redundant logic structure. | |
| Syntax Errors | RAND USR 839 will not function as we said. To LOAD without autorun, select FAST mode and use RAND USR 837 instead. LOADing stops with report C/0 and you then LIST or SAVE the program. Thanks to H. K. Olsen of Prince George, BC for the correct method. | Timex/Sinclair 1000 |
| Towers of Hanoi | This program demonstrates the use and manipulation of a 3-dimensional string array, N$(R,C,9), by tracking occupancy with a numeric array, P(R,C). The program runs in slow mode; you can see blocks move. | Sinclair ZX81, Timex/Sinclair 1000, Timex/Sinclair 2068, Type-in program |
| VAL$ on Your 2068 | RUN the program and see on the display what each function does. You can use this to print both your formula and its number value from a string variable. Succinctly put, VAL$ gives you the string that VAL evaluates, the right-hand side of the equation for A$, by returning some steps earlier. | Timex/Sinclair 2068, Type-in program |
