Search found 211 matches

by GCHarder
Tue Apr 16, 2019 10:26 pm
Forum: Software
Topic: Happy pi day - March 14th
Replies: 1
Views: 287

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: 155

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: 392

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: 185

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
by GCHarder
Tue Feb 19, 2019 10:06 pm
Forum: ZX BASIC
Topic: BASIC Input routine
Replies: 0
Views: 181

BASIC Input routine

Here's a general purpose "plug n' play" input routine in BASIC. Fairly snappy for being all BASIC.

Regards;

Greg
by GCHarder
Fri Feb 08, 2019 10:12 pm
Forum: Emulators
Topic: New release of EightyOne available
Replies: 171
Views: 34290

Re: New release of EightyOne available

Skip frame just makes the display choppy but doesn't do anything for the speed.

Neazoi, the interlace lines can be eliminated by adjusting one of the sliders in the TV emulation window, I forget which one off hand.

Regards;

Greg
by GCHarder
Fri Feb 08, 2019 12:15 am
Forum: Emulators
Topic: New release of EightyOne available
Replies: 171
Views: 34290

Re: New release of EightyOne available

If I run this program...

10 PRINT "X";
20 GOTO 10

Speed settings of 1X, 16X and 32X all take about 6 sec. to fill the screen.

Don't worry about it, it can't be that important if no one else has mentioned it.

Maybe it's something in my WIN7 setup.

Regards;

Greg
by GCHarder
Wed Feb 06, 2019 9:48 pm
Forum: Emulators
Topic: New release of EightyOne available
Replies: 171
Views: 34290

Re: New release of EightyOne available

Just curious, does the speed option in the menu actually do anything? No matter what setting I choose I don't see any noticeable change in speed. It would be nice to have some programming running at Fast and Furious speeds.

Regards;

Greg
by GCHarder
Wed Feb 06, 2019 9:45 pm
Forum: ZX BASIC
Topic: A Gauge routine
Replies: 0
Views: 376

A Gauge routine

A simple "plug 'n play" moving gauge routine in BASIC.

Regards;

Greg
by GCHarder
Mon Feb 04, 2019 11:57 pm
Forum: Emulators
Topic: New release of EightyOne available
Replies: 171
Views: 34290

Drag and Drop not working

Unless I've missed something drag and drop isn't working in the 1.13 release.

Yes, I did delete my ini file.

Regards;

Greg