Search found 1709 matches

by Moggy
Sun Jan 13, 2019 1:17 pm
Forum: ZX BASIC
Topic: Determine a Finonacci number
Replies: 2
Views: 445

Re: Determine a Finonacci number

Excellent Shaun at last something else to add to my maths folder. :D I use the following, lifted from Rosetta Code, which may give you some further ideas. Analytic. 10 INPUT N 20 PRINT INT (0.5+(((SQR 5+1)/2)**N)/SQR 5) Iterative. 10 INPUT N 20 LET A=0 30 LET B=1 40 FOR I=2 TO N 50 LET C=B 60 LET B=...
by Moggy
Thu Jan 10, 2019 3:14 pm
Forum: Hardware
Topic: Help in resurrecting my ZX81
Replies: 64
Views: 6430

Re: Help in resurrecting my ZX81

Excellent work Martin. :geek:

Another one comes to life and thanks for reminding me about the inverse video I had forgotten about that. :oops:
by Moggy
Tue Jan 08, 2019 4:22 pm
Forum: Hardware
Topic: Some questions about ZXPand+ serial port
Replies: 12
Views: 729

Re: Some questions about ZXPand+ serial port

@Enigmachine I was in communication earlier with Charlie on another matter and mentioned the topic and he said, Serial GET _is_ supported, it was just not documented at the time and he has updated the on-line manual to reflect this. https://github.com/charlierobson/ZXpand-Vitamins/wiki/ZXpand---Onli...
by Moggy
Tue Jan 08, 2019 3:09 pm
Forum: Hardware
Topic: Some questions about ZXPand+ serial port
Replies: 12
Views: 729

Re: Some questions about ZXPand+ serial port

RS232 communication is not as simple as you might think. RS232 requires a steady baudrate. This is easy on the PC side where you have a chipset with hardware handshake and interrupts. Hardware handshakes are not available on the ZX81, so we have to use software handshake (XON/XOFF). And the interru...
by Moggy
Fri Dec 21, 2018 2:57 pm
Forum: Welcome Area
Topic: Merry Xmas and Happy Holidays
Replies: 9
Views: 1252

Re: Merry Xmas and Happy Holidays

HAPPY HOLIDAYS!! Bloody colonials. :lol:

All the best to you and yours Charles in the lone star state and all the best also to zeddy lovers everywhere. :D


Best wishes.


Moggy.
by Moggy
Wed Dec 12, 2018 10:19 pm
Forum: ZX BASIC
Topic: ZX Basic vs Commodore V2.00 (Vic 20)
Replies: 24
Views: 2194

Re: ZX Basic vs Commodore V2.00 (Vic 20)

Mathematical functions simple and complex can be defined within a string in zx81 basic and the evaluation of said function, after whatever values needed are entered, can be called by simply asking the strings value. That would require a GOSUB or GOTO. Regards, Shaun. Not sure what you're driving at...
by Moggy
Mon Dec 10, 2018 4:09 pm
Forum: ZX BASIC
Topic: ZX Basic vs Commodore V2.00 (Vic 20)
Replies: 24
Views: 2194

Re: ZX Basic vs Commodore V2.00 (Vic 20)

Mathematical functions simple and complex can be defined within a string in zx81 basic and the evaluation of said function, after whatever values needed are entered, can be called by simply asking the strings value.
by Moggy
Sun Dec 09, 2018 4:27 pm
Forum: Development
Topic: Tapestry wide
Replies: 6
Views: 427

Re: Tapestry wide

Andy Rea wrote:
Sun Dec 09, 2018 9:41 am
Brilliant stuff indeed, Shame the humble zeddy doesn't have sprites... Imagine some awesome scrolling action games...

Thanks for sharing this with us.

Andy
That's because you haven't invented them yet Proff' ! :lol:
by Moggy
Fri Dec 07, 2018 4:02 pm
Forum: Development
Topic: Tapestry wide
Replies: 6
Views: 427

Re: Tapestry wide

Superb work as always,Adam,many thanks for this. :ugeek:
by Moggy
Sun Nov 25, 2018 10:56 pm
Forum: Software
Topic: 2k adventure
Replies: 26
Views: 1941

Re: 2k adventure

I won't be expanding it. As a 2K Adventure game it was a development novelty only--a fun exercise in coding. A full-RAM version with more rooms and features would require a redesign of some of the compromises to make to fit into 2K, and Adventure games abound in the wilds. (I think the one I posted...