- #Playing pc 98 games on retroarch install
- #Playing pc 98 games on retroarch manual
- #Playing pc 98 games on retroarch full
- #Playing pc 98 games on retroarch free
- #Playing pc 98 games on retroarch windows
A batch menu/program launcher with mouse support. I already predefined some macros, so for example, pressing Grph+H will reboot via HSB, and pressing Grph+W will set a selected. Hold down Grph or press F2 to bring up a programmable macro menu. A nice and easy-to-use file manager, with convenient features like directory copy. Installed to \DOS5 directory, available by rebooting using HSB (see below). Standard install, used as the default OS.
#Playing pc 98 games on retroarch free
The config.sys/autoexec.bat files are annotated, so feel free to adjust the setup as needed. Ideally you'll have some extra RAM, but this disk image will happily run on 1.6MB or 64MB of memory, and everything in between. The default configuration provides 610K conventional memory + EMS up to your total RAM, with a largest free UMB block of 34K-48K (depending on the computer model) for additional drivers. The memory configuration is optimized as much as possible while remaining broadly compatible with most models. The core suite of OS and tools takes up about 24MB total, leaving over 512MB for games and other data. But you can still open it with Disk Explorer, convert it to NHD, and use it in emulators. DOS3 is required by certain games, such as early Falcom titles.ĭOS3 only supports FAT12, so unfortunately CONV98AT does not work and the image is not directly readable or mountable in Windows.
#Playing pc 98 games on retroarch install
If you're using a hex editor, delete everything after (but not including) 0x21E01FFF.īONUS: I'm also throwing in a 128MB hard disk image with a clean install of MS-DOS 3.3D. But if you use a 2GB flash card, for example, the 542MB backup image will also include an extra 1.5GB of empty data, so you should split the file at 568,336,384 bytes and just keep the actual disk data at the beginning. You can also do the reverse and back up the disk to a new image file. It should even be possible to write out to a real IDE or SCSI hard drive if you want. In my case, I use Win32DiskImager to write out to an SD card, which plugs into an IDE-SD adapter connected to a PC-9821. To use this image on a real PC98, you need to write out the raw image to disk. Same procedure as IMG file, but manually specify an offset of 137 blocks, not 136. (If you work with a memory copy and try to save it later, ImDisk will leave out the PC98 MBR and break the image.) For image file access, select direct access. Disk size and offset (136 blocks) are detected automatically. Use right-click menu on IMG file, or open ImDisk in Control Panel and click Mount new. To mount the image as a virtual disk, install the ImDisk Virtual Disk Driver. CONV98AT is included, so you can convert other PC98 hard disks in the same way. This makes it much easier to transfer files between your PC98 and modern PC.
#Playing pc 98 games on retroarch windows
You can either mount the image in Windows as a virtual disk, or write it to an SD/CF card and browse it like an ordinary flash drive. There's another cool thing about this image: it has a hybrid partition table created with the CONV98AT utility, which means it can be accessed directly on both a PC-9801 and a modern PC.
#Playing pc 98 games on retroarch full
By using the /merge option, nhdgen will create the full nhd disk image. merge - by default, nhdgen just generates a separate 512-byte nhd header file. auto - automatically detects the HD parameters. To save yourself some time, you can also add this definition to types.ini in the Disk Explorer folder:Ĭode Select Expand nhdgen input_file.img output_file.nhd
#Playing pc 98 games on retroarch manual
To open this image in Disk Explorer, select manual HD and enter 17 sectors, 512 sector length, 8 heads, 98 format (you don't have to enter the cylinders, because Disk Explorer doesn't check that value).
Later models have higher size limits, but 542MB is best for maximum compatibility. Why 542MB? Because that's just under the maximum allowed hard drive size imposed by a limitation in the PC98 disk BIOS. This is a 542MB raw (headerless) disk image. I can't guarantee compatibility with every system out there, but I have tested and used this disk image in the following environments:įirst, the disk image itself. There are no specific system requirements, but the configuration assumes that you have:ģ) an OPNA-equivalent sound source (either built-in, or a sound board such as the PC-9801-86) This is a Windows-readable PC-9801 disk image that includes many essential utilities and provides a stable, versatile DOS environment for playing games and other stuff. I heard you were making a PC-9801 hard disk image, so I decided to clean up mine and share it.
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