Volume: 2
Issue: 9
Articles
| Title | Description | Computers |
|---|---|---|
| [Cut RF interference to the ZX80] | ||
| [If you have a logic probe ... ] | Use logic probe to record state of ICs in the computer. | |
| [The following SYNTAX readers wish to contact ...] | Readers from Califonia, Florida, Illinois, Maryland. | |
| [Would you like a ZX80 interface to the outside world?] | ||
| 8K ROM Update | Sinclair now has another source of 8K ROMs. According to Nigel Searle, the new manufacturer will deliver by September 1 enough ROMs to both replace bad ROMs and satisfy demand for new ones. | Sinclair ZX80 |
| Continuous Display Utility | Want a flicker-free screen? JRS Software now offers software for continuous display. | Sinclair ZX80 |
| Cosine Functions on 4K ROM | ||
| Data Dubber | The Peripheral People offer a device to help you LOAD and SAVE cleanly. | Sinclair ZX80 |
| Dear Editor | Letters about 4K ROM; tape recorders; modifying the ZX80 cursor; TV interference. | |
| From Other Basics - VAL and LEN | ZX80 Basic substitutions for LEN and VAL functions. | Sinclair ZX80 |
| Hardware Report | Potential solution to problems with LOAD. | Sinclair ZX80 |
| Know Your Gas Hogs | Use your ZX80 to compare fuel economies and estimate total gas expenditures. | Sinclair ZX80 |
| Landing a LEM on the Moon | This ZX80 version sets a LEM 2,530 meters above the moon with only 300 liters of fuel. You must land without crashing or running out of fuel. | Sinclair ZX80 |
| Machine Code Print Routine | Machine language (ML) permits you to print characters anywhere on the screen. Harness the ZX80’s own print routine with RST 0010. | Sinclair ZX80, Sinclair ZX81 |
| Manipulating Strings | Routines broaden your ability to use strings in interesting ways. | Sinclair ZX80 |
| Microcommander Interface | Interface Technology has resumed plans to adapt the TRS-80 Microcommander to the ZX80. The device gives the computer direct control of up to 256 lights and appliances. | Sinclair ZX80 |
| Prime Numbers | Program lists all prime numbers between 1 and 1000. | Sinclair ZX80 |
| Printing on the 8K ROM | One of the 8K ROM’s nicest features is its increased printing capability. | Sinclair ZX81 |
| Problems Solving Principles for Programmers: Applied Logic, Psychology and Grit | Review of the book by William Lewis. | |
| Random Functions in 4K, 8K | Compare RND (4K, 8K), RAND (8K), and RANDOMISE (4K) . | Sinclair ZX80, Sinclair ZX81 |
| Reader's Report on MicroAce Video | Not for neophytes– that’ s John Strain’s assessment of the MicroAce Flicker-Free Video Add-on Board. According to John, “The flicker-free mod circuit board does not physically fit inside the ZX80 case. The components supplied completely prevented mounting the circuit board inside the ZX80.” Also, you can’t use the top display line; you must add components | MicroAce, Sinclair ZX80 |
| Reading Machine Code Assembly | Beginning machine language (ML) programmers sometimes have trouble deciphering all the numbers that make up an assembly listing. | Sinclair ZX80 |
| ROM List Delay | 4K ROM assembly listing has been delayed for a couple of weeks. | Sinclair ZX80 |
| Sinclair Fall Computer Show | Sinclair Research plans to hold computer shows to introduce its ZX81 this fall. | Sinclair ZX81 |
| Sine Functions on 4K | Closely approximate sine functions on your 4K ROM with a few BASIC statements. | Sinclair ZX80 |
| Syntax Error | Corrections to ZX80 Checkbook; Improving Display. | Sinclair ZX80 |
| The Math Program | Program that presented tailored study, using ZX80s, to those who want extra help in math. | Sinclair ZX80 |
| ZX80 Budget | Can keep track of expenses. As written, program keeps addition totals on 18 accounts. | Sinclair ZX80 |
| ZX80 Table | Constructs number tables with columns lined up. | Sinclair ZX80 |
