Search found 930 matches

by siggi
Thu Feb 11, 2021 11:13 am
Forum: Development
Topic: Taxmate: version 2
Replies: 4
Views: 395

Re: Taxmate: version 2

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
by siggi
Tue Feb 09, 2021 8:42 pm
Forum: Software
Topic: Pascal for ZX81
Replies: 19
Views: 1707

Re: Pascal for ZX81

Here it is: hard to read, but better than NIL ;)
Semper-Partial-Pascal-Manual.zip
(18.09 MiB) Downloaded 35 times
Have fun
Siggi

PS. Is any page missing?
by siggi
Tue Feb 09, 2021 6:38 pm
Forum: Software
Topic: Pascal for ZX81
Replies: 19
Views: 1707

Re: Pascal for ZX81

by siggi
Tue Feb 09, 2021 6:22 pm
Forum: Software
Topic: Pascal for ZX81
Replies: 19
Views: 1707

Re: Pascal for ZX81

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...
by siggi
Tue Feb 09, 2021 5:39 pm
Forum: Software
Topic: Pascal for ZX81
Replies: 19
Views: 1707

Re: Pascal for ZX81

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...
by siggi
Fri Feb 05, 2021 9:33 am
Forum: GAMES
Topic: New ZX81 Games
Replies: 196
Views: 216288

Re: New ZX81 Games

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...
by siggi
Wed Dec 02, 2020 9:45 am
Forum: Hardware
Topic: tasman centronics interface cable search
Replies: 13
Views: 1424

Re: tasman centronics interface cable search

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...
by siggi
Mon Nov 30, 2020 2:53 pm
Forum: ZX BASIC
Topic: Replacing numbers with a full stop.
Replies: 5
Views: 426

Re: Replacing numbers with a full stop.

Try
LET A = NOT PI
by siggi
Mon Nov 09, 2020 10:25 am
Forum: Hardware
Topic: How to power off the ZX81 correctly
Replies: 15
Views: 789

Re: How to power off the ZX81 correctly

I recommend to use the following shutdown program:

Code: Select all

call FAST
HALT
Then you can pull the plug ...

:mrgreen:
Siggi