Search found 217 matches

by GCHarder
Sun Jun 23, 2019 12:21 am
Forum: Software
Topic: Programs which use Hi-Res Graphics on the Sinclair ZX81
Replies: 22
Views: 145486

Re: Programs which use Hi-Res Graphics on the Sinclair ZX81

Some info about the QS HRG board can be found here... http://zx81.ordi5.free.fr/qshrg/ The ROM image is available from there. XavSnap's emulator emulates this board very nicely. http://zx81.vb81.free.fr/ Here's some demos and programs for the Quicksilva HRG. Also includes the "Kweeky" application to...
by GCHarder
Sat Jun 15, 2019 8:35 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 10
Views: 573

Re: sz81 emulator

Thanks, that worked.

FYI, anyone using the ZXMore version, you have to change to UDG mode in the tools options before loading it.

Regards;

Greg
by GCHarder
Thu Jun 13, 2019 10:46 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 10
Views: 573

Re: sz81 emulator

The ZXMore version doesn't work because the file "ZXM-data.bin" is missing from the archive.

Regards;

Greg
by GCHarder
Wed Jun 12, 2019 10:09 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 10
Views: 573

sz81 emulator

The sz81 is a nice emulator. If you haven't checked it out recently you might want to here... http://rullf2.xs4all.nl/sz81/ and the manual... http://rullf2.xs4all.nl/sz81/manual.html Besides the standard ZX81 (sz81), it now has support for Chroma, ZXPand (sz81p) and ZX81NU (sz81n), I don't know what...
by GCHarder
Wed May 01, 2019 11:00 pm
Forum: GAMES
Topic: Asteroids
Replies: 1
Views: 268

Asteroids

A simple "Asteroids" game
by GCHarder
Tue Apr 23, 2019 9:27 pm
Forum: Software
Topic: Kaleidoscope Program
Replies: 0
Views: 796

Kaleidoscope Program

See enclosed text for info.

Enjoy;

Greg
by GCHarder
Tue Apr 16, 2019 10:26 pm
Forum: Software
Topic: Happy pi day - March 14th
Replies: 1
Views: 460

A Program to Calculate Pi

The author claims over 8000 decimal places in 16K. Presumably more with extended RAM.

Regards;

Greg
by GCHarder
Sat Apr 13, 2019 10:16 pm
Forum: ZX BASIC
Topic: MC INKEY$ replacement
Replies: 2
Views: 453

MC INKEY$ replacement

From "Syntax" magazine
by GCHarder
Sat Apr 13, 2019 10:15 pm
Forum: ZX BASIC
Topic: what is the largest number that can be stored on a zx81
Replies: 10
Views: 746

Re: what is the largest number that can be stored on a zx81

Here's Frank O'Hara's explanation from "Syntax"
by GCHarder
Fri Mar 15, 2019 10:33 pm
Forum: Hardware
Topic: ZX81 Mod
Replies: 1
Views: 287

ZX81 Mod

There's a new youtube video of a guy showing the insides of a ZX81..

https://www.youtube.com/watch?v=Vv715KETc0w

It looks to be heavily modified, I was wondering what this mod might be.

Any guesses, looks like it has a substantial heat sink attached.

Regards;

Greg