After I designed the first version of my PC88 floppy board, I thought it would be fun to put one together for the PC98 as well. Why do I need an adapter for a computer that already has 3.5” floppy drives? The PC9821AP2 I own has a 26-pin floppy drive connector, like a mid-90s laptop, and most standard IBM PC style floppy drives have 34.
*Pc98 Rom Fdi
*Pc98 Fdi Hdi Collection 3 Rar
Welcome to r/pc98, the center of the Western PC-98 fanbase! Here, you can discuss anything to do with NEC's timeless PC-9800 series of computers, including hardware, games, programming, history, music, and EPSON's PC-98 compatibles. For guides and information on the PC-98, please check the r/pc98 Wiki.
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*Hdi fdi pc98 msdos free download 1–20 of 413. PC98 MS Windows1 03 hdi rar. Tokugawa Corporate Forums View topic PC98 Windows TOWNS Login SofcomCD vol 2 Files. The NEC PC-9800, also known as the PC-98, were a family of computers. Besides the emulator, you'll need a set of floppy disk images (FDI.
*Mahalito, D88, D77, XDF, FDI, NFD ディスクイメージ変換ツール. 古いパソコンのフロッピーディスクのバックアップに、PC-98で動くMahalito vector.co.jpという大変便利なソフトがあり、気に入って使っているのだが、このイメージを他のイメージ形式に変換したかったりすることがある。.
What’s more, my PC98 doesn’t have a standard Molex 4-pin power connector for floppies; the 26-pin cable carries 5V power as well.The Board
There are a few schematics out there, but I shouldn’t have gone all the way to the Japanese internet for them. It turns out the FlashFloppy wiki had the schematic the whole time:
I’m not sure about the “6 -> 2” part of this; another diagram I found said that pin 6 on the PC98 is DISK_CHANGE, which is pin 33 on the 3.5” floppy. Pin 2 on the 34-pin is DENSITY; from what little I understand of floppy drives, it makes no sense to connect these two. I ended up routing 6 -> 33 correspondingly, though this might be the cause of a strange problem I seem to be having (more on this later).
Note also that I haven’t tried two of the same board in one machine, since I don’t have a dual-drive 26-pin ribbon cable.
I went through a few revisions of this board - my most boneheaded mistake was omitting the power connector entirely.
*v1.0: Cancelled because it had a power connector (d’oh) before it even went to fab. It would have been 100% fine.
*v1.1: No power connector, because I somehow got it into my head that the floppy drive would get power from somewhere else, even though I had seen pictures of an existing PC98 adapter that had a Molex connector on the board. Also extremely enormous, because I didn’t take the time to route my traces very well after having to rework the board to remove the Molex.
*v1.2: Has a Molex connector, but due to a bad footprint, the holes were too small for the part I ended up using. I still made it work (see below.)
*v1.3: Still in the mail. Has a Molex connector with the correct footprint from Digi-Key, is a little teeny tiny bit smaller than v1.2.
It’s a learning experience. I’m currently thinking about ways to tile my bathroom with the leftover PCBs.Assembling the Board
Since the Molex connector didn’t fit, I figured I’d just cut one of the very hard-to-find (in my city) floppy Molex-to-Berg adapters I had picked up for the PC88 and solder it on. Unfortunately, I didn’t realize the floppy power connector was on the other side of the board and the cables couldn’t reach, plus it looked bad. Hopefully some other project needs a very short length of Berg wiring in the future.
In the interest of time, I ended up just grabbing two male-to-female jumper cables out of my pile and soldering them on. Looks bad, works okay.
I also ordered a 26-pin header in the wrong pitch. Apparently you can get them in “very small.” Standard Canadian quarter for scale.
Eventually, everything worked out and I got a board that plugged into the Gotek in all the necessary places.Preparing the Gotek
I’ve gone over this a few times already, but flashing the Gotek is basically this process:
You need jumper wires because one of the connections is diagonal. More info in this great guide.
I used FlashFloppy 0.9.28a and the male-male USB cable with a Windows copy of DFUse.Connecting to the PC98
Plugging it in isn’t too hard, assuming I soldered the connectors on straight. Pin 1 is red, and delivers five volts, so don’t get it backwards.
I also swapped the drive-select jumper on the Gotek itself from S1, which it comes stock as, to S0. There’s no ‘twist’ in the cable for drive select like there would be on an IBM PC.
Let’s fire this thing up first without a USB stick. It comes alive, and then almost immediately goes to the “insert system disk” screen. This is a great sign, because I’ve seen with other PC98s running HxC or Gotek that it just lags for a long time before getting you there. This means I can still quickly boot off my hard drive (whenever it arrives from EMS) with the Gotek installed.Pc98 Rom Fdi
Font awesome font for mac. I pulled a fresh USB flash drive out of its package (like the baller I am), and then dumped an FDI disk image on it. The PC98 booted off the disk, and went to a DOS boot screen, and then… seemed to hang there.
I’m not sure what happened, but after a long time I decided to tap the change disk button on the front of the Gotek. This made the computer wake up and proceed. It might be something to do with floppy sense (the DISK_CHANGE problem I mentioned above) or some hack that was done on this game when it was moved into its own disk image. I’ll try this with more disk images later.Playing video games
I don’t necessarily own a license to Compile’s Marvel Putt Golf, but if they want to come and get some money from me, they’re welcome to it. In exchange for fanboy fawning.
According to the place where I got it, this was part of a “DiscStation DS98 #04” collection. I’m guessing it was a freeware game or tiny demo done by bored programmers between big jobs.
I’m assuming this is a main menu. When I hit return, it took me first to a (non-keyboard-friendly) name entry screen, and then to choose whether I wanted to play the front nine or back nine of a course. Let’s start with something simple…Pc98 Fdi Hdi Collection 3 Rar
Maybe too simple. That’s as good a place to leave this entry as any.
I’m expecting my next update to be about the colour video for the PC88, as the adapter board I designed to avoid having to chop and splice DIN cables is nearly here - if you believe UPS’s lies.Manufacturer : NEC | System : PC-9801Welcome to the NEC PC-9801 ROMs section of the ROM Database. Please scroll down for more sections and remember to share this page. You can also vote for your favourite system.NEC PC 9801 Roms Section.
The PC-9801 is a Japanese 16-bit microcomputer manufactured by NEC from 1982, the first in the PC-9800 series of 16-bit and 32-bit personal computers. The platform established NEC's dominance in the Japanese personal computer market, and by 1999, more than 18 million PC-98 units had been sold.
It first appeared in 1982, and employed an 8086 CPU. It ran at a clock speed of 5 MHz, with two µPD7220 display controllers (one for text, the other for video graphics), and shipped with 128 KB of RAM, expandable to 640 KB. Its 8-color display had a maximum resolution of 640×400 pixels. Its successor, the PC-9801E, which appeared in 1983, employed an 8086-2 CPU, which could selectively run at a speed of either 5 or 8 MHz. The NEC PC-9801VM used NEC V30 CPU.
When the PC-98 was launched in 1982, it was initially priced at 298,000 yen (about 1,200 USD in 1982 dollars).
In the 1980s and early 1990s, NEC dominated the Japan domestic PC market with more than 60% of the PCs sold as PC-9801 or PC-8801. In 1990, IBM Japan introduced the DOS/V operating system which enabled displaying Japanese text on standard IBM PC/AT VGA adapters. After that, the decline of the PC-98 began. The PC-9801's last successor was the Celeron-based PC-9821Ra43 (with a clockspeed of 433 MHz, using a 440FX chipset-based motherboard design from 1998), which appeared in 2000.
While NEC did not market these specific machines in the West, it did sell the NEC APC III, which has similar hardware as early PC-98 models.
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