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core remains a bad name to use -- dirvish skips files (and
directories, it seems) with that name.
Signed-off-by: Keith Packard <keithp@keithp.com>
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In case we end up invoking it from two places at once.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Mash lots of storage locations and code around to shrink stuff down to size
Signed-off-by: Keith Packard <keithp@keithp.com>
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This shrinks the base OS load down a bit as well so that stm-flash
fits comfortably in the first 8kB of memory.
Signed-off-by: Keith Packard <keithp@keithp.com>
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When set, this causes the task switching code to avoid blocking IRQs
while looking for an idle task as that can increase IRQ latencies
enough to drop characters at 115200 baud on the cc1111. Note that this
*also* eliminates the ability to use low power modes as we cannot know
at any point whether some interrupt has come along and woken a task.
Has no effect when using task queues as those require IRQs to be
blocked while looking at the queue. Shouldn't be a problem there
though as the check for no running tasks is very cheap.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Cache the next wakeup time and check that before jumping to the task
code.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This replaces the array-based scheduler with a queue-based one
instead. It should have the same basic scheduling semantics, but it
walks shorter lists for each operation, making it much more efficient
when the system has a lot of tasks.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Add sample-based profiling, using a 1kHz timer
Signed-off-by: Keith Packard <keithp@keithp.com>
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And only include them if using tasks
Signed-off-by: Keith Packard <keithp@keithp.com>
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