SCC don´t work in SCC Games. | MSX Resource Center (Page 3/6)

incognito ergo sum (116)

14-02-2014, 19:53

pseudoMSX will not implement SCC+ with ROM, because it does not exist in real hardware, nor is it trivial to convert a SCC+ cartridge to have ROM.

These are disk games, MSX computers run the disks fine, as will pseudoMSX. This fetish for .ROM files needs to end.

Par Manuel

Ascended (19469)

14-02-2014, 19:58

Grauw: let's discuss on IRC.

Par anonymous

incognito ergo sum (116)

14-02-2014, 20:08

Manuel: normally you avoid IRC discussions!

Grauw: sounds like you're making it hard for yourself. You can either mount a directory with your ROM file and use ROMLOAD and AUTOEXEC.BAT to load it, or you can use a regular SCC+ cartridge/extension and access its slot from your normally mapped ROM cartridge.

You're not going to be able to release a .ROM product with a SCC+ mapper anyway, due to earlier mentioned reasons.

Par Grauw

Ascended (10772)

14-02-2014, 20:13

Btw, I will eventually provide a .com version of Synthesix too, don’t worry . Just in terms of iteration time, this is right now more convenient (and I like putting my Snatcher / ESE-SCC / MegaFlashROM SCC+ SD to good use ).

Par anonymous

incognito ergo sum (116)

14-02-2014, 20:18

iteration time is quickest with my second suggestion, the code for which a .com version will require anyway. As long as your SCC detection routine also checks its own slot, no special case for megaflashscc+sd is required.

Par Grauw

Ascended (10772)

14-02-2014, 21:21

I prefer to run as soon as possible, even before the disk ROM boots. Right now, from the time I type “make run” and Synthesix is running it takes… (timing it…) 6 seconds. (That’s with C-BIOS, a turboR takes a second longer.)

I don’t have SCC detection yet; once I have that, I can of course plug in an SCC+ on the command line and run Synthesix in the other slot.

But, sorry, thread hijack .

Par Paulo Volkova

Expert (104)

14-02-2014, 21:34

I think I have fake SCC rom's in my collection.
Does anyone have the full sha1 values list of all games from Konami with SCC?
Thanks.

Par sd_snatcher

Prophet (3659)

14-02-2014, 22:08

@Grauw

My 2 cents:

Why don't you contact the MSX Cartridge Shop guys and release Synthesix as a cartridge? (preferably one with a flash, so it can be updated to later releases)

I guess that would both (1) make collectors happy and (2) fill the openMSX requirements for a real hardware existence on the wild. It's a win-win solution, I hope.

Par Grauw

Ascended (10772)

14-02-2014, 22:57

Haha . Good idea about the flash. That would be kinda sweet actually!

First I have a lot of work to do though! It’s far from finished still .

Par Manuel

Ascended (19469)

15-02-2014, 08:45

@Paulo: check the softwaredb.xml file that comes with openMSX in share/softwaredb.xml and look for KonamiSCC.

Thanks to BiFi for this info: the original SCC+ supporting Konami games (like Nemesis 1) from the Konami Game Collection are not loaded into the RAM of the SCC+ at all. Only the SCC music driver and some data are. The game itself runs from the main MSX RAM. In other words: the SCC+ ROMs that are in the wild are fictional hacks that have nothing to do with real hardware.