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Constant block is now built in a subdir to avoid messing up source
directory.
Renamed to ao_scheme to reflect language target.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Note range of existing chunks to exclude objects outside.
Only look at chunks which have been set to reduce loop cost.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Realizing that long-lived objects will eventually float to the bottom
of the heap, I added a simple hack to the collector that 'remembers'
the top of the heap the last time a full collect was run and then runs
incremental collects looking to shift only objects above that
boundary. That doesn't perfectly capture the bounds of transient
objects, but does manage to reduce the amount of time spent not moving
persistent objects each time through the collector.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This helps tune the allocator
Signed-off-by: Keith Packard <keithp@keithp.com>
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The CRC is actually of the ROM bits, so we can tell if the restored
image relates to the currently running code.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Allow testing of the save/restore code under Linux.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Add a prompt for stdin, read from other files on command line before
stdin.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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This enables changing values of atoms declared as constants, should
enable lets, and with some work, even lexical scoping.
this required changing the constant computation to run
ao_lisp_collect() before dumping the block of constant data, and that
uncovered some minor memory manager bugs.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This makes all lisp objects use 16-bit ints for references so we can
hold more stuff in small amounts of memory. Also adds a separate
constant pool of lisp objects for builtins, initial atoms and constant
lisp code.
Now builds (and runs!) on the nucleo-32 boards.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Keith Packard <keithp@keithp.com>
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