Sinclair ZX80 / ZX81 / Z88 Forums

Why don't you use a scanner?

Siggi

If you are going to integrate 64k RAM into the zx81 then you have to make some more mods on Kai's data drivers. Has to be enabled only at IO cycles. So your extension board would not be usable for connecting any RAM at all. Internal expansions do NOT conflict with the bus drivers. The data bus driv...

The ZX80 runs only in FAST mode. So you have to do some PAUSE to see the result on screen. The other possibilty is to count the executed clock cycles and call the display routine at the right moment ;-) There is AFAIK one ZX80 game (some kind of space invaders), which uses this "trick" to give a sta...

I suspect the ZX81 is connected to some HDD? PS: Btw, sometimes it download progs not as name.p but as name.htm Files are stored on MMC cards (max. 3, each with max. 128MB), not on tape ;-) BASIC-programs should download as "name.P", while other data (e. g. m/c above ramtop) should download as "nam...

If you replace the ZX80 by a ZX81 rom you get a ZX81, which runs only in FAST mode. There was an hardware add-on (NMI generator) to run this ZX80 with ZX81-rom also in slow mode. And there was a new keyboard foil to be glued on the ZX80 keyboard to have the new ZX81 keywords available.

Siggi

yerzmyey wrote:(the server is very slow).

Indeed: a Z80 running at 0,00325 GHz (but always in FAST mode ) having a serial link (9600 baud) to the Internet:
my Zeddy

Siggi

IMHO: bus drivers.
Example:
http://www.fischerkai.de/zxteam/treibsch.gif

Siggi

The sound is output as square wave to the tape output port and thus appears at the "mic" connector (very silently). If you have a monitor output added to your zeddy, the sound also appears there (louder than at the mic connector). You have to use an external amplifier (e. g. tape recorder in "record...

Back to the subject:

maybe this may help:

http://www.fischerkai.de/zxteam/zx2000_e.htm

Siggi

BrunoFlorindo wrote: Any Photoshop artists out there?

Forget Photoshop. Real ZX81/Ts1000 enthusiasts do it using a Zeddy and e. g. ZX-PAINT



Siggi