- Rearranged HBIOS code to improve colocation of related code.
- Implemented macros to improve control over assembly diagnostic output.
- Improved handling of diagnostic LEDs.
- Improved application boot bank management.
- Implemented application boot for Z280 systems.
- Moved Z280_BNKSEL into proxy.
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- The post-reset delay of both the IDE and PPIDE drivers has been extended. The SD-IDE adapters need more time to initialize before being ready to behave as proper IDE devices.
- Added support for the FDC section of the Duodyne Disk-IO board.
- Based on reports from Martin R, the FDC detection algorithm has been updated to try reading the FDC MSR register twice to try and get the desired value of 0x80.
- Dan Werner's ESP board for Duodyne is working well, so the default Duodyne config has been changed to automatically detect this board.
Credit to Martin R for reporting that his FDC was not being detected. The delay between FDC status register reads was increased in the detection routine to correct this.
Added a new driver category for DSKY (Display/Keypad) devices. Existing DSKY devices were converted into drivers ICM and PKD. These devices were previously DSKY and DSKYNG.
This removes substantial code duplication and recovers significant space in romldr and dbgmon.
- Modified the Disk Device function call (DIODEVICE) to provide new attributes related to disk size and removability.
- Leveraged API change to allow handling drive assignment differently depending on ATAPI vs. ATA interface.
- Floppy devices are now configured per-device so that each floppy drive can be different (e.g., first floppy is 3.5" and second floppy is 5.25").
- Removed need to use termination signal on floppy sector I/O.
Addresses issue #318
- The DSKY(ng) can display disk I/O activity as the system runs. This capability was implemented very erratically. This update overhauls the mechanism, makes it consistent, and implements it across all disk drivers.
- FD driver will now detect presence of FDC hardware and install if found in all standard configurations
- Does *not* detect type of FDC which must still be set in config
- Added default FD driver MODE to all configs
- Thanks to Alan Cox for the technique!
Floppy I/O was failing for slower CPUs when the timer interrupts were active. Now fixed.
Credit to Jorge Jorge Rodrigues for finding this problem and pointing me in the right direction for the fix.
Supports double-buffered disk i/o to read/write to/from any memory bank specified.
NOTE: Disk I/O will be temporarily slower than normal because all I/O is being forced thru double-buffering for testing.
