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collapseos/arch/8086/pcat
Virgil Dupras 475caf35f4 Make KEY non-blocking
... and rename it to KEY?. Then, add KEY from KEY? for its blocking
version.

I need this for an upcoming Remote Shell feature. If a Collapse OS
system remotely controls another shell, it needs to be able to poll
both the remote system and the local keyboard at the same time. A
blocking KEY is incompatible with this.

In some places, the polling mechanism doesn't make sense, so this
new KEY? always returns a character. In some places, I just haven't
implemented the mechanism yet, so I kept the old blocking code and
added a "always 1" flag as a temporary shim.

I have probably broken something, but in emulators, Collapse OS runs
fine. It's an important reminder of what will be lost with the new
"dogfooding" approach (see recent mailing list message): without
emulators, it's much harder to to sweeping changes like this without
breaking stuff.

It's fine, I don't expect many more of these core changes to the
system. It's nearly feature-complete.
2021-01-01 08:23:59 -05:00
..
blk.fs Make KEY non-blocking 2021-01-01 08:23:59 -05:00
Makefile Add words |M and |L 2020-12-07 20:11:49 -05:00
mbr.fs Add words |M and |L 2020-12-07 20:11:49 -05:00
xcomp.fs Add words |M and |L 2020-12-07 20:11:49 -05:00