Sarah, if you can, please add a option (that can be manually enabled via configs) that mounts PCem floppy drives to a real floppy drive.

Lets say that I have a random DOS disk in my hand that I want to read/write directly in PCem via my USB floppy drive. Without the feature I mentioned above, this isn't possible.

Something like
disc_a_realdrive=1,W
disc_b_realdrive=1,E

W and E are drive letters that are assigned to the real floppy drives.

Have you tried to code your idea? Have you been able to make floppy images?

But what if I don't want to dump the floppy image?

EDIT: Found the codefile for floppy disk controller, it's fdc.c

for all: I'm trying to add support for the x86-based NEC PC-9821 proprietary Japanese PC on PCem 😀

That could be interesting. There really isn't much FOSS PC98 emulators out there 😀

leileilol wrote:

That could be interesting. There really isn't much FOSS PC98 emulators out there 😀

The ones that I could only find are Qemu/9821 and Xnp2 for Windows.

SA1988 wrote:

leileilol wrote:

That could be interesting. There really isn't much FOSS PC98 emulators out there 😀

The ones that I could only find are Qemu/9821 and Xnp2 for Windows.

MESS? Okay, well, that isn't technically FOSS.

Stiletto wrote:

SA1988 wrote:

leileilol wrote:

That could be interesting. There really isn't much FOSS PC98 emulators out there 😀

The ones that I could only find are Qemu/9821 and Xnp2 for Windows.

MESS? Okay, well, that isn't technically FOSS.

MESS has an even incomplete emulation of the PC-9801 driver and is not FOSS, so I exluded it

Hello, i want to congratulate you on doing awesome job with PCem and being able to emulate so many different systems, so i was wondering if you would be able to emulate some early IBM aptiva models based on pentium processors? How much do you need to reverse engineer it?

Well, PCem already emulates the Pentium processor and, since the IBM Aptiva is PC compatible, there's no need to emulate it unless it has a different chipset than the other models PCem emulates have.

Probably would help if those BIOSes were available (and they should be from digging on the support downloads site and extracting from the bios update disk images... maybe)

It has different chipset AFAIK and different graphics. I will come with more info as soon as i do research.
EDIT: I have found something regarding IBM Apiva m30, see for yourself here.
Long story short, we need Trident 9680XGi emulation, along with MWave audio card emulation and dumped BIOS.

I need a little help. I'm used a lot of different emulators (and even administer a VMWare ESX cluster), but PCem is new to me. I'm trying to get an emulated XT 5160 up (I actually have a real 5160 that I'm more or less trying to clone).

I have BIOS images. I have floppy images. I created a virtual hard disk with the same HDD geometry as an original ST-412. Booting to floppy works fine. However, when I attempt to fdisk the HDD, I get "No fixed disks present."

Now, I know I must be doing something wrong, but I don't know what it is. Is there some trick to the virtual HDD image process I've skipped?

For an XT machine you might need to place a version of ide_xt.bin in the roms directory.

VileRancour wrote:

For an XT machine you might need to place a version of ide_xt.bin in the roms directory.

You were right. I was assuming incorrectly that PCem also emulated the XT Xebec MFM hard drive controller. Apparently it does not. Thanks for the tip! I'm up and booting now.

Dumb question, but what's the maximum hard disk size supported by PCem with the AMI WinBios?

I couldn't get it past 2GB even on LBA auto and user forcing, so........ 2GB.

(though, my real ami winbios 486 can do 7gb)

I was able to get PCem to use 8gb for the Award 430VX however (8gb is the limit allowed by PCem), but that's 5th gen territory.

Is anyone else having trouble getting MS-DOS installed under PCem? Ever since I switched motherboards in my PC, PCem seems to have gotten into the habit of forgetting my hard drive/floppy settings whenever it reboots, making it impossible to install MS-DOS or partition a hard drive. What could be causing this?

Is that problem present with all the chipsets selectable from within PC em, or just the 430VX again?

Did you change / reinstalled your OS? It seems like your config files can not be written (permissions?).