Don Lamen

Articles (30)

TitleAuthor(s)PublicationDate
Exploring the Timex/Sinclair 1000’s Sinclair Logic ChipSincus NewsNovember - December 1988
Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip (SCL)
Attempts to reverse engineer the ULA via disassembly of ROM.
Sincus NewsNovember/December 1988
Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip (SCL), Part 2
More exploration, including some circuit sketches.
Sincus NewsJanuary/February 1989
Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip, Part 2Sincus NewsJanuary - February 1989
Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip, Part 3Sincus NewsMarch - April 1989
Exploring the Timex/Sinclair 1000’s Sinclair Logic Chip, Part 3, Conclusion
Final installment continues with drawing of internal data latch and internal data bus.
Sincus NewsMarch/April 1989
Exploring the TS1000 Sinclair Logic Chip (SCL) IX
This month concludes the series with a discussion of some of the parameters used by the SCL and a few...
Don LamenQZXJuly 1990
Exploring the TS1000 Sinclair Logic Chip (SCL) VI
This article is a continuation of the series which began in the October 1989 issue of QZX. The purpose is...
Don LamenQZXApril 1990
Exploring the TS1000 Sinclair Logic Chip (SCL) VIII
This article is a continuation of the series which began in the October 1989 issue of QZX. The purpose is...
Don LamenQZXJune 1990
SortSincus NewsJanuary - February 1987
T/S 1000 Printer TipVISTA Newsletter
TS-2068 Data Input
A utility for: data base generation, keyboard reading, character concatenation, screen display, full editing This is an audacious attack upon...
Bill Jones
Don Lamen
Update MagazineApril 1989
TS-2068 Data Input (re-visited) or “A new hiding place for code”
Concatm.C1 relocated to an area other than print buffer.
Update MagazineJuly 1989
ZX81/TS 1000 Tips
Here is a little function, which may be placed at the beginning or within a machine code program, to stop...
Don LamenThe Data ExpansionMarch 1988
ZX81/TS1000 Tips
Machine code routine that uses a floating point number as an address.
Sincus NewsNovember/December 1988
ZX81/TS1000 TipsSincus NewsMarch - April 1988
ZX81/TS1000 TipsSincus NewsJanuary - February 1988
ZX81/TS1000 TipsSincus NewsSeptember - October 1988
ZX81/TS1000 TipsSincus NewsNovember - December 1988
ZX81/TS1000 TipsSincus NewsJuly - August 1989
ZX81/TS1000 TipsSincus NewsNovember - December 1989
ZX81/TS1000 TipsSincus NewsJanuary - February 1990
ZX81/TS1000 TipsSincus NewsJuly - August 1990
ZX81/TS1000 TipsTimelinezAugust 1985
ZX81/TS1000 TipsSincus NewsJuly - August 1988
ZX81/TS1000 Tips
To determine the address of ‘UPLOAD’, PEEK 16511 + 256 x PEEK 16512 + 4 using a direct command. Then...
Don LamenThe Data ExpansionApril 1988
ZX81/TS1000 TipsSincus NewsMay - June 1988
ZX81/TS1000 Tips
Use a pocket calculator to convert decimal address to hexadecimal and back; program for doing the same on ZX81/TS1000.
Sincus NewsSeptember/October 1988
ZX81/TS1000 Tips
Short machine code routines to save paper when copying a screen, fine the address of a line number.
Sincus NewsJuly/August 1988
ZX81/TS1000 TipsDon LamenThe Data ExpansionJuly 1988

Blog Posts (1)

TitleDate
The History of QZX
QZX was one of the longest running Sinclair newsletter in the United States, starting in 1981 and published for more...
October 31, 2020