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callback types. timer_callback is a class containing a timer_expired_delegate plus a user-supplied pointer, and accounting information for registration. timer_instance is a single active timer in the scheduler. persistent_timer is what you get back from timer_alloc() now, and has methods for dynamic changes. transient_timer_factory is what you use to create transient timers. Devices now own a transient_timer_factory for transient device timers. persistent_timers can be emedded and initialized directly.
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parameters to u64. Change first parameter of device timers to be emu_timer const. Updated all device timers to follow suit.
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This uses the WD1000 driver.
The DMAF2/3 6844 DMA support had to be improved to support multiple channels,
and now supports a separate high addresses for each channel. It now also
support addresses increasing or decreasing. These controllers use different
DMA channels for the floppy and the hard disk, and also a tape archiver which
is not yet implemented.
This gets UniFLEX running using a hard disk for storage, and does not appear
to regress the floppy support or other variants using the DMAF2.
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Used by the SWTPC09 DMAF3 and it boots UniFLEX on a disk image, and
perhaps some other machines can leverage this.
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