Import LinuxCNC source tree

tests/abs.0/expected

@@ -0,0 +1,7 @@
+0.000000 0.000000 
+0.250000 0.250000 
+-0.250000 0.250000 
+1.000000 1.000000 
+-1.000000 1.000000 
+64.000000 64.000000 
+-64.000000 64.000000 

tests/abs.0/runstreamer

@@ -0,0 +1,10 @@
+#!/bin/sh
+halstreamer << EOF
+0
+0.25
+-0.25
+1
+-1
+64
+-64
+EOF

tests/abs.0/test.hal

@@ -0,0 +1,17 @@
+setexact_for_test_suite_only
+
+loadrt sampler cfg=ff depth=350
+loadrt streamer cfg=f depth=350
+loadrt abs
+loadrt threads name1=fast period1=100000
+
+net in streamer.0.pin.0 => sampler.0.pin.0 abs.0.in
+net out abs.0.out => sampler.0.pin.1
+
+addf streamer.0 fast
+addf abs.0 fast
+addf sampler.0 fast
+
+loadusr -w sh runstreamer
+start
+loadusr -w halsampler -n 7