Forums

Sega Master System / Mark III / Game Gear
SG-1000 / SC-3000 / SF-7000 / OMV
Home - Forums - Games - Scans - Maps - Cheats - Credits
Music - Videos - Development - Hacks - Translations - Homebrew

View topic - Brand new Sega SC-3000+SF-7000 Colecovision loader

Reply to topic
Author Message
  • Joined: 10 Dec 2009
  • Posts: 5
Reply with quote
Brand new Sega SC-3000+SF-7000 Colecovision loader
Post Posted: Wed Jan 13, 2021 9:11 am
At the end it works (at least on emulators). Not yet tested on real hardware. Required SF-7000 disk drive. No CV numpad supported (so far).



https://www.facebook.com/groups/sc3000/permalink/3616326221789734/?app=fbl

SiRioKD.
  View user's profile Send private message Visit poster's website
  • Site Admin
  • Joined: 08 Jul 2001
  • Posts: 8276
  • Location: Paris, France
Reply with quote
Post Posted: Wed Jan 13, 2021 6:00 pm
Interesting!
How does it works?
It is scanning and patching opcodes to remap ports?
  View user's profile Send private message Visit poster's website
  • Joined: 10 Dec 2009
  • Posts: 5
Reply with quote
Post Posted: Thu Jan 14, 2021 7:44 am
Bock wrote
Interesting!
How does it works?
It is scanning and patching opcodes to remap ports?


Changed boot process to initialize SC-3000 hardware.
Changed sound ports. Patched interrupt handling (NMI=> INT) routines. Created space into rom to put sg-1000 joystick routines to emulate the CV ones.
At the end I wrote a simple multi game floppy loader.
  View user's profile Send private message Visit poster's website
  • Site Admin
  • Joined: 08 Jul 2001
  • Posts: 8276
  • Location: Paris, France
Reply with quote
Post Posted: Thu Jan 14, 2021 8:58 am
I guess my question was, are you loading pre-modded Coleco-to-SC3000 ports? (and creating those conversions is already a substantial amount of work) or is the loader patching/converting them semi-automatically on the fly?

I would be curious to see how far one could go with trying to automate the conversion. I imagine a PC tool could somehow do it.
  View user's profile Send private message Visit poster's website
  • Joined: 17 Jan 2020
  • Posts: 34
  • Location: Brisbane
Reply with quote
Post Posted: Fri Jan 22, 2021 2:03 am
Bock wrote
I would be curious to see how far one could go with trying to automate the conversion. I imagine a PC tool could somehow do it.


Sounds like a good idea.
col2sg-1.00.zip (18.74 KB)

  View user's profile Send private message
Reply to topic



Back to the top of this page

Back to SMS Power!