templeos-floppy-driver/Kernel/BlkDev/DskFDC.HC, branch blkdevFloppy disk controller driver (and more) for TempleOS
https://git.yoshi128k.tk/cgit/templeos-floppy-driver/atom?h=blkdev2026-06-22T07:19:16ZSplit floppy IRQ handler into separate file2026-06-22T07:19:16ZHarley Travisharleytravis123@outlook.com2026-06-22T07:19:16Zurn:sha1:028a74b6ce3f889de88053d84e15f3d3d6fb2819
Since KInts.HC is compiled before DskFDC.HC, undefined symbol issues could possibly occur. when attempting to compile the interrupt set-up code because the IRQ handler is not yet compiled. To prevent this, I separated the IRQ handler into another file that is included immediately after the headers. The instructions have been updated to reflect this change.
Update source file information comments2026-06-20T00:20:32ZHarley Travisharleytravis123@outlook.com2026-06-20T00:20:32Zurn:sha1:15de1acb37d8b92db9499192b22a189cad913215
I have added the "PURPOSE", "TO USE", and "THEN" tags to make the information sections more easy to read while keeping line length down. These are used by a Python script I wrote to generate an instruction file.
Rename FDCInt to match TOS IRQ handler naming2026-06-19T01:58:43ZHarley Travisharleytravis123@outlook.com2026-06-19T01:58:43Zurn:sha1:420954060bc8bede578436f1459b856b5fff3e31
The IRQ handlers in TempleOS' kernel code have an "IRQ_" prefix. FDCInt has been renamed to IRQ_FDC in keeping with Terry's code style. An unused definition of the same name has also been removed from KFloppyA.HH.
Add installation notes to source files.2026-06-13T01:33:27ZHarley Travisharleytravis123@outlook.com2026-06-13T01:33:27Zurn:sha1:0f378e8ba3c2817126f851fa782b66ab13af6ba3
I added comments to all patch files explaining their function and how to install them. Installation instructions were also added to some of the code files as well.
Update DskFDC.HC2026-06-11T00:30:28ZHarley Travisharleytravis123@outlook.com2026-06-11T00:30:28Zurn:sha1:3cbc8ac1688ed5c67a61a758d2f80d19e04c3259
The Bt call was modified to test for the corrrect bit of SRA.
Update DskFDC.HC2026-06-11T00:26:39ZHarley Travisharleytravis123@outlook.com2026-06-11T00:26:39Zurn:sha1:6590b4942c0727903b42f9a34f7a076e034fda09
FDCWriteBlks now checks if the disk is write-protected before attempting a write, throwing an exception if it is. I also reworked the retry check for both it and FDCReadBlks.
Update DskFDC.HC2026-06-08T02:06:46ZHarley Travisharleytravis123@outlook.com2026-06-08T02:06:46Zurn:sha1:d1a3cbbf5eaa8c0e63c7d6ac402bd4be182102a9
I realized that the logic that determined the sector size value sent to the controller would not work properly on larger sector size, so I redid it.
Update DskFDC.HC2026-06-07T00:35:22ZHarley Travisharleytravis123@outlook.com2026-06-07T00:35:22Zurn:sha1:0898cca4b9eb3465bc4507508d352502f6e5781a
I have added a function that will check for the presence of valid sector data on either side of a floppy disk. This function is used to check for the presence of a disk in a way that does not rely on the proper handling of the disk change flag.
Update DskFDC.HC2026-06-05T04:36:37ZHarley Travisharleytravis123@outlook.com2026-06-05T04:36:37Zurn:sha1:82db93b2732e88cb76f0506e549f5549b8750bc6
I moved the version check into the drive-0-only code; it wouldn't make sense to check the version each time a drive gets initialized.
Update DskFDC.HC2026-06-02T00:56:18ZHarley Travisharleytravis123@outlook.com2026-06-02T00:56:18Zurn:sha1:45014e275907fe3714d854e13458161426974879
I have decided not to use multi-track mode and instead do atomic reads and writes to sector ranges. I have also added a timeout to the motor command when the motor is turned on (approximately 500 milliseconds to accomodate 5ΒΌ" drives). FDCInit now sets the highest-accessible block.