ARENA an Old/New game
ARENA an Old/New game
I've also included the scanned pages as well. Check out the great full page ad from Silicon Mountain Computers AKA Fred Nachbaur.
Regards;
Greg
Re: ARENA an Old/New game
Hi Greg
I tried to play the game, but is too fast for me (living in the 50 Hz part of the ZX81 universe
), especially caused by the strange keyboard layout. I then tried to play it using KMURTAs Joy81 card (programmed for the strange keys), but the game does not respond to the "keys" generated by Joy81 ![Sad :-(](./images/smilies/icon_e_sad.gif)
But no bugs occured till now![Wink ;-)](./images/smilies/icon_e_wink.gif)
Siggi
I tried to play the game, but is too fast for me (living in the 50 Hz part of the ZX81 universe
![Wink ;-)](./images/smilies/icon_e_wink.gif)
![Sad :-(](./images/smilies/icon_e_sad.gif)
But no bugs occured till now
![Wink ;-)](./images/smilies/icon_e_wink.gif)
Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
http://zx81.ddns.net/ZxTeaM
Re: ARENA an Old/New game
Change line 860 POKE 16910,B to
860 POKE 16910,B*2 or B*4 or B*6...
I don't think it will break anything else.
Don't know what to say about the keyboard, that's not an easy change as it's based on the keyboard "sections" not on individual keys. I find Z-X-C-H works well, but I'm using a standard keyboard not a real ZX81. I've played it in three emulators with not problem.
Sorry;
Greg
860 POKE 16910,B*2 or B*4 or B*6...
I don't think it will break anything else.
Don't know what to say about the keyboard, that's not an easy change as it's based on the keyboard "sections" not on individual keys. I find Z-X-C-H works well, but I'm using a standard keyboard not a real ZX81. I've played it in three emulators with not problem.
Sorry;
Greg
Re: ARENA an Old/New game
A nice game and I like the graphic effects, very good!
Thanks Greg, for share that with us.
By the way, have you available the SHR Extended BASIC documentation?
![Wink ;-)](./images/smilies/icon_e_wink.gif)
The game seems to read all keyboard sectors simultaneosly so there are no differences in type keys ( SHIFT Z X C V ) or ( A S D F G ) or ( Q W E R T ) or ( 1 2 3 4 5 ) or ( 6 7 8 9 0 ) or ( Y U I O P ) or ( H J K L NL ) or ( B N M . SPC ). It is as if we had just 5 keys in the keyboard. But in this case the JOY81 only recognize the sector 0 ( SHIFT Z X C V ).
Thanks Greg, for share that with us.
By the way, have you available the SHR Extended BASIC documentation?
Siggi, use the keys Z,X,C and V to program the JOY81siggi wrote: I then tried to play it using KMURTAs Joy81 card (programmed for the strange keys), but the game does not respond to the "keys" generated by Joy81![]()
![Wink ;-)](./images/smilies/icon_e_wink.gif)
The game seems to read all keyboard sectors simultaneosly so there are no differences in type keys ( SHIFT Z X C V ) or ( A S D F G ) or ( Q W E R T ) or ( 1 2 3 4 5 ) or ( 6 7 8 9 0 ) or ( Y U I O P ) or ( H J K L NL ) or ( B N M . SPC ). It is as if we had just 5 keys in the keyboard. But in this case the JOY81 only recognize the sector 0 ( SHIFT Z X C V ).
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/
Re: ARENA an Old/New game
Sorry, all my hardware, mags, software etc. was stolen from a storage shed long ago. Luckily, I scanned a few items but not that. As I recall, I don't think I ever had any paper documents for that, maybe Fred put one together.
I've been thinking of dis-assembling the code, a daunting task since its 6K. I do know there's a jump table in there somewhere, once you find that you'd at least know where each individual routine is located.
Your right about the keyboard. Again, I don't recall why I did that, but I think it has to do with reading the keyboard port directly IN A,(FE) I think, and bypassing any ROM routines to decode the key pressed. Very fast, but limited, keyboard read, good if you only need a few keys.
Regards;
Greg
I've been thinking of dis-assembling the code, a daunting task since its 6K. I do know there's a jump table in there somewhere, once you find that you'd at least know where each individual routine is located.
Your right about the keyboard. Again, I don't recall why I did that, but I think it has to do with reading the keyboard port directly IN A,(FE) I think, and bypassing any ROM routines to decode the key pressed. Very fast, but limited, keyboard read, good if you only need a few keys.
Regards;
Greg
Re: ARENA an Old/New game
Thanks Kelly for your hint about the JOY81 keys. Now I can play the game without "applying the handbrake" (POKE ...) ![Wink ;-)](./images/smilies/icon_e_wink.gif)
And thanks to Greg for this nice old/new game
BTW: I have got long ago the SHREB documentation (but not of the latest SHREB version). But it is a copy of a matrix printer document and hard to read even on paper....
I could try do dig it out and scan it???
Siggi
![Wink ;-)](./images/smilies/icon_e_wink.gif)
And thanks to Greg for this nice old/new game
BTW: I have got long ago the SHREB documentation (but not of the latest SHREB version). But it is a copy of a matrix printer document and hard to read even on paper....
I could try do dig it out and scan it???
Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
http://zx81.ddns.net/ZxTeaM
Re: ARENA an Old/New game
Here is the SHREB documentation!
Wilf Rigter scanned it in 2005 for me. The files are a graphical format, which can be viewed using this program (Wilf also sent me this link in 2005, and it still works!!!!):
http://support.visioneer.com/utilities/viewer.exe
Have fun
Siggi
Wilf Rigter scanned it in 2005 for me. The files are a graphical format, which can be viewed using this program (Wilf also sent me this link in 2005, and it still works!!!!):
http://support.visioneer.com/utilities/viewer.exe
Have fun
Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
http://zx81.ddns.net/ZxTeaM
Re: ARENA an Old/New game
Thank you very much, Siggi!siggi wrote:Here is the SHREB documentation!
I'll take a closer look once I have some free time.
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org
https://toddysoftware.itch.io/
Arena, updated version
With redefineable key patch
- Attachments
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- Arena (Key Patch).zip
- Program
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Re: ARENA an Old/New game
I like it, although it's a bit harsh when antimatter debris gets dumped in the square right next to the centre so you can't do anything about a shot from that direction. Also not quite sure what the point of the "moles" is.
It reminds me on a superficial level of Space Zap, which I was always surprised never got a port to either the Zeddy or the Speccy, being a super-simple but fast, intense and addictive game that would have been easy to do on either machine.
Bit of box art:
It reminds me on a superficial level of Space Zap, which I was always surprised never got a port to either the Zeddy or the Speccy, being a super-simple but fast, intense and addictive game that would have been easy to do on either machine.
Bit of box art: