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
Search found 930 matches
- Thu Feb 11, 2021 11:13 am
- Forum: Development
- Topic: Taxmate: version 2
- Replies: 4
- Views: 395
- 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 
Have fun
Siggi
PS. Is any page missing?

Have fun
Siggi
PS. Is any page missing?
- Tue Feb 09, 2021 6:38 pm
- Forum: Software
- Topic: Pascal for ZX81
- Replies: 19
- Views: 1707
Re: Pascal for ZX81
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
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
- 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...
- 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...
- 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...
- 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...
- 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
LET A = NOT PI
- Thu Nov 19, 2020 7:27 pm
- Forum: WANTED
- Topic: Wanted alphacom 32 power supply
- Replies: 14
- Views: 4106
Re: Wanted alphacom 32 power supply
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
see
https://k1.spdns.de/Vintage/Sinclair/82 ... 20Printer/
See also:
https://forum.tlienhard.com/phpBB3/view ... f=2&t=3293
HTH 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:
Then you can pull the plug ...
Siggi
Code: Select all
call FAST
HALT

Siggi