Search found 778 matches

by siggi
Mon Jan 22, 2018 8:53 am
Forum: ZX BASIC
Topic: PI or not PI, that is the question.
Replies: 2
Views: 38

Re: PI or not PI, that is the question.

Variables can also contain SPACES:

Code: Select all

10 LET NOT PI = 0
20 PRINT NOT PI
:mrgreen:
by siggi
Fri Jan 19, 2018 9:32 am
Forum: Development
Topic: New display engine for games and more
Replies: 11
Views: 267

Re: New display engine for games and more

HI Adam
I tried to run it with EO V1.6 and an emulated ZX81 havng 48K ram, but it crashes :(
It works with 16K and 32K ram.

So it will not work with my real 56K Zeddies????

Siggi
by siggi
Mon Jan 01, 2018 9:28 am
Forum: Sinclair Misc
Topic: Happy New Year
Replies: 5
Views: 200

Re: Happy New Year

A happy new year for all ZX81 (and others) fans
from Siggi (currently being in Saigon without an Zeddy :roll: )
by siggi
Thu Dec 21, 2017 8:38 am
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 26
Views: 999

Re: If you like your submarine simulations fast, arcadey,...

Great! :mrgreen: But the next version should also have a network interface (ZeddyNet), that someone else in the world could control the destroyers :mrgreen: We had a discussion about such a network game some months ago in Tom's forum: http://forum.tlienhard.com/phpBB3/viewtopic.php?f=2&t=2401&p=3102...
by siggi
Wed Dec 20, 2017 8:51 pm
Forum: Software
Topic: BMP 2 UDG for ZXPand with UDG Board
Replies: 14
Views: 406

Re: BMP 2 UDG for ZXPand with UDG Board

they are upside down!? That has always been the case, I don't know why, see Wilf Rigter's article at http://www.user.dccnet.com/wrigter/index_files/BMP2P.htm Regards; Greg No, not always, but usually :mrgreen: There is a bit in the header, which indicates, whether it is up or down. I once wrote a p...
by siggi
Mon Dec 11, 2017 10:17 pm
Forum: Hardware
Topic: Slower than Slow. I mean 25 hertz slow;-)
Replies: 6
Views: 262

Re: Slower than Slow. I mean 25 hertz slow;-)

I did suspect slowdown could affect the display, as that is what "slow" does. The ula interaction with the clock ... I did not know of . :o But someone did say the ula runs the video framing. SO if that is going on, it must be "using the clock" to keep it all in sync. :roll: Both the Z80 AND the UL...
by siggi
Fri Dec 08, 2017 2:39 pm
Forum: Software
Topic: Campus LIsP (32K)
Replies: 21
Views: 1349

Re: Campus LIsP (32K)

Yes, nowadays there are a lot of solutions, to fast-load a program or data anywhere into ram (Zxpand, USB-drivers, Mefisdos, ZeddyNet). Thus the workflow I had in mind would be: - Load and run ZEDIT and create a Lisp source code(results in ASCII text at 32K). If necessary, save the text (Lisp source...
by siggi
Thu Dec 07, 2017 7:37 am
Forum: Software
Topic: Campus LIsP (32K)
Replies: 21
Views: 1349

Re: Campus LIsP (32K)

Hi Stefano to keep it portable: could you just add an additional option (or a command) to read input from an ASCII string somewehre in memory (e. g. from 8192 of a 56K Zeddy)? Then I could write a small program to - copy a text (created by ZEDIT) from 32K to 8K and replace ^Z by a \0 (to create a we...
by siggi
Wed Dec 06, 2017 3:26 pm
Forum: Software
Topic: Campus LIsP (32K)
Replies: 21
Views: 1349

Re: Campus LIsP (32K)

Editing a function is not possible, you need to re-enter it and crossing fingers you should be able to issue the garbage collector with (gc) to wipe the old one. Hm, then it would be nice to have the souce code of the function somewhere in RAM (where it could be edited), and then could be imported ...
by siggi
Wed Dec 06, 2017 1:36 pm
Forum: Software
Topic: Campus LIsP (32K)
Replies: 21
Views: 1349

Re: Campus LIsP (32K)

Hi Stefano
is it possible to edit a function which has been typed in incorrectly?

Does the 48 K version have only data above 48K? On most zeddies (except ZxMore) running machine code above 48K is not possible (above 32K only after M1NOT modification).

Siggi