Search found 22 matches

by nippur72
Thu Mar 17, 2022 12:36 pm
Forum: Introduce yourself!
Topic: Hello from Italy!
Replies: 21
Views: 6948

Re: Hello from Italy!

Yes, i play with different example and the code is cool! Would be interesting if someone move over the lib from cc65 to kickc. I've written a sort of TMS9918 library for my previous Apple1 project which I'm porting to Creativision, so I will also look at cc65 and see if I can recycle something :-) ...
by nippur72
Wed Mar 16, 2022 6:48 pm
Forum: Software
Topic: Deep Sea Adventure FIXED
Replies: 13
Views: 8782

Re: Deep Sea Adventure FIXED

thank you!
by nippur72
Wed Mar 16, 2022 2:28 pm
Forum: Software
Topic: Deep Sea Adventure FIXED
Replies: 13
Views: 8782

Re: Deep Sea Adventure FIXED

Mobsie wrote:
Wed Mar 16, 2022 12:11 pm
Is done with different set of the tiles, shifted 4 or more times. See and read my Scrample demo, i use 4 different char setup for 2 pixel scrolling.
where do I get it, I can't find it on the CV Web site. I only see a youtube video for "Skramble".
by nippur72
Wed Mar 16, 2022 11:48 am
Forum: Software
Topic: Deep Sea Adventure FIXED
Replies: 13
Views: 8782

Re: Deep Sea Adventure FIXED

first time I see this game, and I wonder how the smooth scrolling of the background is possible? I always thought that the TMS9928 was not capable of that.
by nippur72
Wed Mar 16, 2022 11:15 am
Forum: Homebrew software and hardware (excluding games)
Topic: Joystick/Keyboard matrix decoding
Replies: 1
Views: 1393

Joystick/Keyboard matrix decoding

Is there a schematic diagram for the joystick/keyboard matrix? By looking at the datasheet (circuit 3.pdf) I see the PIA data ports are connected to J1 and J2, which I think are the joysticks connectors, but I have no clue how they are actually wired. My actual understanding of the decoding is (plea...
by nippur72
Mon Mar 14, 2022 7:45 am
Forum: Homebrew software and hardware (excluding games)
Topic: FPGA implementation
Replies: 3
Views: 1549

FPGA implementation

I'm going to make FPGA implementation for the CV (or at least give it a try). I checked various sources and it seems we have the HDL code for all the chips that are on the CV motherboard (PIA, SN, TMS, 6502). So it should be a matter of gluing all together strictly following the hardware schematic. ...
by nippur72
Mon Mar 14, 2022 7:21 am
Forum: Homebrew software and hardware (excluding games)
Topic: creatiVision BIOS Quick Reference
Replies: 6
Views: 1931

Re: creatiVision BIOS Quick Reference

what are the differences between CV BIOS and Laser2001/Salora one ? Do they boot differently? e.g. does the Laser one jumps to BASIC instead of Cart ?
by nippur72
Sun Mar 13, 2022 3:20 pm
Forum: Introduce yourself!
Topic: Hello from Italy!
Replies: 21
Views: 6948

Re: Hello from Italy!

Hi, you compare kickc with cc65? Or you just a kickc user) I think i will try to compare it because i read a lot about kickc. I need to understand how made the target file first. I love KickC, compared to cc65 it produces very efficient code, mostly thanks to the paradigm of not using stack for pas...
by nippur72
Sun Mar 13, 2022 8:58 am
Forum: Introduce yourself!
Topic: Hello from Italy!
Replies: 21
Views: 6948

Re: Hello from Italy!

I'm slowly digesting all the info, and it's a lot of fun to rediscover this machine! I don't know how to describe it, but I have this strange feeling like a deja-vu as if I have been teleported back in the '80 in a parallel universe where Creativision was the machine of my adoption :lol: With the BI...
by nippur72
Fri Mar 11, 2022 5:17 pm
Forum: Introduce yourself!
Topic: Hello from Italy!
Replies: 21
Views: 6948

Re: Hello from Italy!

thank you, the memory map is a good starting point, I will try to port/convert some of my 6502 related stuff. In the past months I wrote a Tetris clone for the Apple1+TMS9918 which I think it could be ported quite easily, though I see there is already a Tetris-like game (Block). Is there a disassemb...