Sinclair ZX80 / ZX81 / Z88 Forums

Seems to work okay on a TS1500 plugged in after the TS2040 printer.

The only thing odd I've seen is that sometimes the BREAK key doesn't work, even in BASIC programs ??? Not sure what that is all about, but I'll investigate further when I have time.

Bean

Well, I'll try it when I get the ZXpand and let everyone know.

I seem to remember that the TS2040 "slowed down" some of the signals, but I don't remember the details.

Bean

I have just ordered a ZXPand, and I would like to connect it to a TS1500. But the ZXPand will block the connections, so I thought I could put the printer (TS2040) on first and that would provide enough room for the connectors. So I was wondering if it matters either way if the ZXpand is before or af...

I need a power supply for the Timex Sinclair 2068.
It is a 15V negative tip with a barrel jack.

If anyone in the USA has one, I'll pay a reasonable price plus shipping via PayPal ($20ish).

Thanks.
Bean

Yeah, editing isn't really useful anyway because you can't see the bottom lines anyway.
But I didn't think about the printer commands, that kind of sucks.
I guess ANYTHING that switches between FAST and SLOW will kick off the driver.

Bean

I've been working on a program to show a reduced number of display lines in order to run programs faster. AND is usable on a 1K or 2K sinclair machine. Here is what I came up with. It is only 32 bytes of machine code and is setup to display 8 lines and gives a 3X speed improvement. With a couple pok...

I have one. Blue edge connector if that matters.
Works fine on my TS1000. It's not mint if that's what he's looking for.
It has some rub marks on the back and the red lettering on the front is not great.
I can send some pictures if he is interested.

Let me know...

Bean

I was wondering if anyone has tried this ?

Also does anyone have an ideas about how to make it so that you don't have to call the USR after using the BASIC INPUT command ?

Thanks.
Bean

Enable and Disable BREAK at will. One of the most annoying things about the ZX81 is that when you BASIC program is running anytime you press the SPACE key it will cause a BREAK your BASIC program. I've been working on this for awhile and I've come up with a method to be able to disable or enable the...

Can anyone tell me if this program "nobreak.p" works on a real standard ZX81 ?

How would you transfer it to real hardware ?

Bean