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collapseos/blk/581

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ACIA driver
Manage I/O from an asynchronous communication interface adapter
(ACIA). provides "(emit)" to put c char on the ACIA as well as
an input buffer from which a provided "(key)" reads. You have
to call "~ACIA" on interrupt for this module to work well.
CONFIGURATION
ACIA_CTL: IO port for the ACIA's control registers
ACIA_IO: IO port for the ACIA's data registers
ACIA_MEM: Address in memory that can be used variables shared
with ACIA's native words. 8 bytes used.
The whole driver is cross-compilable and is loaded with
"582 LOAD"