Started by PepAlacant, January 20, 2016, 08:30:58 PM
Quote from: SkyeWelse on January 23, 2016, 10:43:50 AMI really wish I had a PC-9801-86 C-Bus card to try out in my PC-98DO, but since my Ce2 already had one built in I guess I just never considered the need for it. I'll be visiting Japan soon and if I happen to find one cheap enough I might get it to try this out. I've been curious as well as to whether it would work. But as far as I understand it, you'll only get the OPNA sound if the game's OST was originally programmed to utilize it. -Thomas
Quote from: SkyeWelse on February 01, 2016, 03:09:41 AMAlternatively, what you could do is to try running the the P88SR emulator from your Cs2 to load the PC88 game you want to play. Most of the PC88 I've tried will load. If the game is running to fast, you can always try tweaking your Cs2's BIOS settings to run in Low CPU mode. I've been working on a P88SR setup to be added to the next YAHDI image, but I got held up with the disk switching because the only PC-98 keyboard I have is one for the PC-98DO which does not have the VF1-VF5 keys which are utilized for switching disks inside the program. There is a way to hotkey the diskswap commands to another keyboard key, but I could never figure it out. I was going to pick up the project again after I got a new PC-98 keyboard. It's hard to say whether it would detect your 86 chip, but it would be worth a try. -Thomas
Quote from: SkyeWelse on February 10, 2016, 06:31:25 PMHi PepAlacant! Glad the CD-Rom tutorial came in handy for you. Thanks for your description about the Cs2 and from what I gather it seems to run very close to my Ce2 model for the types of games it is able to run and how the various CPU modes treat each game. My Ce2 also exhibits the same problem with Return to Ishtar as the graphics appear to be a bit off and glitchy.Regarding your question about pressing the HELP key down on the PC-98DO. I've never tried, but I don't think it will work because as you've noticed all of the dip switches for the BIOS are on the front of the computer whereas they are software dip switches in the PC-9821 models. One key that does work when held down is the GRAPH key as it is used to select between various PC-88 display modes, such as V2 mode. Please keep us updated with your PC-98 DO. I would like to next see about creating a set of HxC/Gotek Floppy Disk Emulators for the PC-98 DO, but I'll have to be careful as I believe the power supplied to the original drives is very different than the 3.5 inch floppy disk drives. I blew one of my original 3.5 inch drives trying to hook it up to the DO once. In other news, while exploring Japan on vacation I was able to find a new PC-98 keyboard which now offers the VF1-VF5 keys which are needed for some software functionality such as taking screenshots or changing disks inside of P88SR. EDIT: I was able to get a PC-9801-86 C-Bus card while visiting Beep Shop Akihabara in Japan, which is my new favorite store by the way. So when I have a moment to test it out in the PC-98DO I will and report back.-Thomas
QuoteThe bad news is that none of the PC-88 games that I own original copies of output sound through the PC-9801-86 Soundboard II.
QuoteSlayers 98 which at least in my case detects the YM2608 chip during startup and even indicates that it's going to use that as the sound source, but then freezes the audio after awhile all of a sudden. Sometimes it freezes or doesn't have any sound from the get go.
QuoteSome other tests I did that support this is that when I placed the PC-9801-86 into the PC-9821 Ce2 which already has a onboard YM2608 chip, I am about output via a line out to a separate speaker games such as Flame Zapper with no issues directly off the CF card HDD. But when I tried games like Touhou, I experienced freezing of the game and freezing of the music, similar to the situation with Slayers. Removing the PC-9801-86 and re-testing resulted in the same Touhou games working and sounding like a charm.
QuoteI did find a helpful article though that recommend various dip switches on the PC-9801-86 to be either open or closed depending on the hardware. It says that for a DO+ you need Dip Switches 6,7,8 to be Closed. I tried all of those settings, and found no real difference. When I tested it, it was closed for all of the switches.
QuoteAs for the switches on the actual PC-9801-86, these are ALL DOWN except for 8 which is UP. That's also what it was set at when I first bought it at BEEP Shop.