New ZX81 Games

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dr beep
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Re: New ZX81 Games

Post by dr beep »

zx-heinz wrote: Sun Nov 05, 2023 5:45 pm GOL doesn't run, neither on an ZX81NU nor on the EO. :(
I played it continuously on EO.
And it loads on real machine.
dr beep
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Re: New ZX81 Games

Post by dr beep »

zx-heinz wrote: Sun Nov 05, 2023 5:45 pm GOL doesn't run, neither on an ZX81NU nor on the EO. :(
Just downloaded
viewtopic.php?p=53080#p53080
and it runs on EO1.39
Moggy
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Re: New ZX81 Games

Post by Moggy »

I have been playing with this Johan and I'm quite impressed. it was nice to see the gliders rush across the screen.
I did notice that it's not wrap a round screen when they meet the edge., is that by design or lack of memory?

Also your post says it "starts" with a simulation, I assume this to be a demo of some sort whereas when it loads all there is only a black screen and no demo.

runs OK on SZ-81 Eighty One and real zeddy no problems.

Definitely one for the simulation folder. :D
dr beep
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Re: New ZX81 Games

Post by dr beep »

Moggy wrote: Sun Nov 05, 2023 9:02 pm I have been playing with this Johan and I'm quite impressed. it was nice to see the gliders rush across the screen.
I did notice that it's not wrap a round screen when they meet the edge., is that by design or lack of memory?
The screen has a LINEFEED which acts like a wall. So screen ends there. Wrap around would cost a lot of checks how to do that, so both by design and lack of memory.
Also your post says it "starts" with a simulation, I assume this to be a demo of some sort whereas when it loads all there is only a black screen and no demo.
When I start with an editable screen the cursor would start on a different position. I deliberately started with a filled screen and let the program clear the screen in 2 loops. Stopping the simulation always sets the cursor on the same position. Earlier version had a byte short and then the cursor was even different when you started or ended the simulation.
runs OK on SZ-81 Eighty One and real zeddy no problems.
Definitely one for the simulation folder. :D
Was a nice job to fit in 1K. Latest version won another 4 bytes, but I don't have anything extra to add in 4 bytes.
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siggi
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Re: New ZX81 Games

Post by siggi »

GOL-Bugfree Works on EO (V1.23), but not on my ZXNU (>64K ram, Bigbang ROM).
Crashes after pressing 'Z'

Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
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Paul
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Re: New ZX81 Games

Post by Paul »

siggi wrote: Mon Nov 06, 2023 11:57 am GOL-Bugfree Works on EO (V1.23), but not on my ZXNU (>64K ram, Bigbang ROM).
Crashes after pressing 'Z'

Siggi
Hi Siggi, which settings and ROM do you use on EOV1.23?
In theory, there is no difference between theory and practice. But, in practice, there is.
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siggi
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Re: New ZX81 Games

Post by siggi »

Same like my real Zeddies:
Settings1.jpg
Settings2.jpg
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
dr beep
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Re: New ZX81 Games

Post by dr beep »

Only ROM-call made is a6e to copy the screen.
Rest is default display and keyboardreading from intrupt.

BTW I found 4 bytes and when I alter the cursor that is 5.

With these 5 bytes I was able to stop with CLS or stop and keep screen.

Release later.
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siggi
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Re: New ZX81 Games

Post by siggi »

dr beep wrote: Mon Nov 06, 2023 3:48 pm Only ROM-call made is a6e to copy the screen.
The code of Bigbang rom and Sinclair rom is identical at that location.

Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
dr beep
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Re: New ZX81 Games

Post by dr beep »

That is why I now use A6E and no more 19F9.
According to Paul this part is in all ROM the same.
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