Gregory Harder

Greg and Fred Nachbaur worked together to product a high-resolution extension to Sinclair BASIC that built on Wilf Rigter’s WRX16.

Location: Colorado

Articles (13)

TitleAuthor(s)PublicationDate
A Guide to Creating RLE Graphics on the T/S 1000 and T/S 1500ZX-AppealJune 1988
Catch A Dragon!
Program to plot “dragon curves.” A dragon curve is a regular fractal which forms from an infinitely repeated construction process.
Time Designs MagazineSeptember/October 1988
Not A Bug
But annoying none-the-less. Our printer got the listings for “ABC/123” nice and dark, but pushed the inverse graphics into the...
Fred Nachbaur
Gregory Harder
SyncWare NewsMay/June 1987
Read Restore & Bump for the 1000
If you have ever tried converting programs written for other computers to run on the TS 1000 then you are...
Gregory HarderSyncWare NewsNovember/December 1987
Sinclair Survival Column
As we end our third year of this column, we go back to our roots and have a look at...
Mark FendrickComputer ShopperMay 1987
Software Lo-Res for the TS1000
SOFTWARE LO-RES is a machine-language utility program for the ZX81/TS1000/TS1500, which creates enlarged characters on the screen. This makes it...
Gregory HarderSyncWare NewsSeptember/October 1985
Software Lo-Res for TS 1000
Machine language utility to create large characters on the screen.
SyncWare NewsSeptember/October 1985
The Fame & The Glory
And now, here are a few more words about the last contest. First, we would like to thank all of...
SyncWare NewsMar-Apr 1986
TS1000 Mystery ProgramGregory HarderSyncWare NewsMay/June 1987
TS1000 Mystery Program II
Here is where we let the cat out of the bag. Load back the program you saved to tape last...
Gregory HarderSyncWare NewsSeptember/October 1987
TS1500 HI-RES
Software-only high resolution routines for the TS 1500.
SyncWare NewsMar-Apr 1986
TS1500 Is More Than Meets the Eye
Demonstration program from Greg Harder how the TS1500 is improved over the 1000, allowing for software-only high-resolution graphics.
SyncWare NewsJan-Feb 1986
ZXLR8 Part III: TS1500 & INBYTE
Modifying the program to work with the TS1500 and Hunter board.
SynapseJanuary/February 1986

Products (6)

TitleCompany
Bargain Pak #2
Programs enhanced by Greg C. Harder. High resolution versions of Voyage of the Seawitch, Blockbuster and Spirogram. 16K.
Silicon Mountain Computers
Bargain Pak #3
Programs enhanced by Greg C. Harder. High resolution math pack, including Fourier and Julia-FPP. 16K.
Silicon Mountain Computers
Dungeon of Ymir
High resolution, “Dungeons and Dragons” graphic adventure game, Rogue-like. Travel to the ninth level of the Dungeon of Ymir to...
Silicon Mountain Computers
Fonts for WRX16
SRAM Hi*Res Extended BASIC
Thirty-eight new commands extend graphic capabilities of ZX81/TS 1000 in 4K machine-code routine package. Features include upper/lower case, 64-column mode,...
Silicon Mountain Computers
ZX-PAINT
Full-featured graphics-design program for the ZX81 or T/S 1000/1500. A minimum of 32K RAM plus either a SCRAM Board, Delta...
Insomniac Electronics

Downloadable Files (12)

TitleTypeCompanyDownload
3-D FractalsCassetteDownload
Bi-Plot DemoCassetteDownload
Block BusterCassetteDownload
DragonsCassetteDownload
Fontkit for WRX16CassetteDownload
Graphics ArchiverCassetteDownload
L-SystemsCassetteDownload
Macro-LifeCassetteDownload
SpirographCassetteDownload
SRAM Hi-Res Extended BASICCassetteSyncWare Co.Download
Voyage of PerilCassetteDownload
ZX-PAINTCassetteDownload

Documents (7)

Videos (1)

TitleDateWatch
ZX81+64K F Scapes tutorial
Greg Harder demonstrates Fred Nachbaur’s F-Scapes program.
July 24, 2023Watch ↗
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