[bioshd] 720KB 2DD support for PC-98 2HD/2DD common drive#1779
Merged
ghaerr merged 1 commit intoghaerr:masterfrom Dec 29, 2023
Merged
[bioshd] 720KB 2DD support for PC-98 2HD/2DD common drive#1779ghaerr merged 1 commit intoghaerr:masterfrom
ghaerr merged 1 commit intoghaerr:masterfrom
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Owner
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Hello @tyama501, Looks good, thank you!
Are you thinking it would be nice to support 640KB floppies? You're welcome to add for PC-98 if you wish :) |
Contributor
Author
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Thank you! I tried a little about 640KB, but it seems that it is not so easy, |
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Hello @ghaerr ,
This is the PR of the 720KB 2DD support for PC-98 as we have talked.
Currently, this is focused on the 720KB(9sectors/track) with device address 0x10 for 2HD/2DD common drive.
640KB(8sectors/track) or device address 0x70 for 2DD sole drive is not supported.
It reads BPB to reject this.
I have tested with PC-9801UV21 and I could read/write 720KB disk.
Since PC-9801BX with 1440KB drive is broken,
3modes are tested only on the emulator, but it can mount 720KB/1232KB/1440KB from the same kernel.
Thank you!