Sinclair ZX80 / ZX81 / Z88 Forums

RND (X) is equivalent to INT (x+0.5) to round to the next integer number.
If necessary multiply/divide by 100 to round to the 2nd digit after the "."

HTH Siggi

Here it is: hard to read, but better than NIL
Have fun
Siggi

PS. Is any page missing?

While I am digging and then scanning: read:
https://forum.tlienhard.com/magazin/200 ... in_100.pdf at page 25
https://forum.tlienhard.com/magazin/200 ... in_500.pdf at page 20
https://forum.tlienhard.com/magazin/200 ... in_206.pdf at page 21

Ok, I will try .. About standard IO: N is (afaik) Nothing: if you enter T for input of the editor, it reads existing input from tape (load source from tape) if your enter C for editor, you can type in (from console) source text into editor if you enter T for output of the editor, it saves source cod...

I have a manual of partial PACSAL (a copy of copy of a horrible printout by a dot-matrix printer, nothing usable for OCR :( ). I also have patched that PASCAL (long time ago!!) to use MEFISDOS instead of tape for program development. The usual workflow is: edit PASCAL source (in ZX81 memory) and com...

I tried to run it on my Zeddy, which has a "zx81x2.rom". But the program remains in the initial screen. Same on EO, when using also the "zx81x2.rom". But it works on EO, when using the "zx81x2m.rom", which has the original NMI-routine (necessary to use it on ZxMore), which is slightly slower than th...

Hi there seems to be 26 pins at the connector. I don't know that interface, but I think it is designed to behave like a PC's 25 pin printer port. Thus the interface connector can be connected 1:1 (ribbon cable) to a 25 pin "centronics type" D-SUB connector (one wire not connected). The 25 pole conne...

Try
LET A = NOT PI

24V 1,2 A.
see

https://k1.spdns.de/Vintage/Sinclair/82 ... 20Printer/

See also:
https://forum.tlienhard.com/phpBB3/view ... f=2&t=3293

HTH Siggi

I recommend to use the following shutdown program:
Then you can pull the plug ...


Siggi