Search found 122 matches

by Fruitcake
Sun Oct 28, 2018 4:43 pm
Forum: ZX Spectrum Lounge
Topic: Ron Bissell - I am looking for he.
Replies: 5
Views: 1546

Re: Ron Bissell - I am looking for he.

Hi Jessica

Should you visit these forums again, I've sent you a private message which you'll need to log in to access.
by Fruitcake
Sun Oct 28, 2018 12:39 am
Forum: ZX BASIC
Topic: ZX81X2.ROM - and the big bang
Replies: 31
Views: 2224

Re: ZX81X2.ROM - and the big bang

RobertK wrote:
Wed Oct 24, 2018 3:09 pm
Fruitcake: do you think you can patch the ZX81x2 ROM for the Chroma Interface to allow loading programs via RS232?
I'll add it to my TO DO list.
by Fruitcake
Mon Oct 22, 2018 10:03 pm
Forum: GAMES
Topic: The Tempest Mystery
Replies: 2
Views: 209

Re: The Tempest Mystery

The inlay for the game says: Tempest.gif And this thread provides some details on how the Mikrogen joystick interface is read: https://www.sinclairzxworld.com/viewtopic.php?t=860#p8527 Why I try the game with and without Chroma in EightyOne, both show "PRESS ANY KEY" so Chroma is not conflicting wit...
by Fruitcake
Mon Oct 22, 2018 12:33 am
Forum: Software
Topic: Requesting Help to Load a .WAV file.
Replies: 14
Views: 813

Re: Requesting Help to Load a .WAV file.

I managed to load the file and run it, but the game screen remains static. However, pressing BREAK returns to BASIC and so it isn't crashing. Placing a breakpoint at 18823 shows that the machine code is being run at the correct entry point and it does go through the motions of regularly checking the...
by Fruitcake
Sat Oct 20, 2018 1:42 am
Forum: GAMES
Topic: LODERUNNER on the ZX81
Replies: 32
Views: 2362

Re: LODERUNNER on the ZX81

I've managed to reproduce the issue you reported using the EightyOne emulator by setting the Chr$ Generator setting in the Hardware dialog to dk'tronics instead of CHR$16 . Even with CHR$16 mode selected, the same issue is seen if the output format selected in CPEC is 8K-64 ; it needs to be 8K-128 ....
by Fruitcake
Sat Oct 20, 2018 1:34 am
Forum: GAMES
Topic: LODERUNNER on the ZX81
Replies: 32
Views: 2362

Re: LODERUNNER on the ZX81

I've tried the files again and I don't see the issue you describe. Are you testing in an emulator or real hardware? If an emulator then which one?
by Fruitcake
Wed Oct 03, 2018 2:21 pm
Forum: ZX BASIC
Topic: SPeccy ON the ZeddY
Replies: 100
Views: 20182

Re: SPeccy ON the ZeddY

I just tried the SPONZY ROM via a ZXC4 ROM cartridge plugged into a Chroma interface and it worked remarkably well. After a bit of trial and error with volume levels I managed to load the Spectrum game Flippit (Sinclair Research Ltd, G26/S) via cassette! Great stuff!!
by Fruitcake
Wed Oct 03, 2018 2:08 pm
Forum: ZX BASIC
Topic: ZX81X2.ROM - and the big bang
Replies: 31
Views: 2224

Re: ZX81X2.ROM - and the big bang

I programmed the ZX81x2 ROM into a ZXC4 ROM cartridge plugged into a Chroma interface and ran a simple loop that filled the screen with random numbers. The difference in speed compared to the running the same loop using the standard ZX81 ROM is very noticeable and highly impressive! Congratulations ...
by Fruitcake
Thu Sep 20, 2018 10:23 am
Forum: GAMES
Topic: JetPac for the ZX81
Replies: 10
Views: 917

Re: JetPac for the ZX81

Jetpac looks great! Nice work. Have you considered including Chroma colour support in the game? ;) If you have a Window PC then you can use winTZX to create audio files from .p files as and when needed. The utility was improved last year to produce more accurate audio waveforms and also to include s...
by Fruitcake
Fri Sep 14, 2018 2:20 am
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 146
Views: 19584

Re: Chroma 81 - SCART and Colour interface for the ZX81

A plastic case for the Chroma interface is now available. It is 3D printed and coloured black, with a red reset button to match the red logo of the ZX81's case. All sockets of the interface are exposed, with a hinged cover over the ROM cartridge socket. ChromaInterfaceCase.png The case is composed o...