Add greeter example

examples/greet.mas

@@ -0,0 +1,91 @@
+org 100
+
+one,         hex 1
+newline,     hex 0A
+exclamation, chr !
+
+questionCounter, adr question
+question, chr W
+	chr h
+	chr a
+	chr t
+	hex 20
+	chr i
+	chr s
+	hex 20
+	chr y
+	chr o
+	chr u
+	chr r
+	hex 20
+	chr n
+	chr a
+	chr m
+	chr e
+	chr ?
+	hex 0A
+	hex 00
+
+greetingCounter, adr greeting
+greeting, chr H
+	chr e
+	chr l
+	chr l
+	chr o
+	chr ,
+	hex 20
+	hex 00
+
+responseCounter, hex 0
+
+// ask the user their name
+	askLoopStart, loadi questionCounter
+	skipcond 800
+		jump askLoopEnd
+	output
+	load questionCounter
+	add one
+	store questionCounter
+	jump askLoopStart
+	askLoopEnd, clear
+
+// read in their response until newline
+	readLoopStart, input
+	storei responseCounter
+
+	subt newline
+	skipcond 800
+		jump readLoopEnd
+	
+	load responseCounter
+	add one
+	store responseCounter
+	
+	jump readLoopStart
+	readLoopEnd, clear
+
+// greet the user
+	greetLoopStart, loadi greetingCounter
+	skipcond 800
+		jump greetLoopEnd
+	output
+	load greetingCounter
+	add one
+	store greetingCounter
+	jump greetLoopStart
+	greetLoopEnd, clear
+
+// play back response
+	clear
+	store responseCounter
+	playbackLoopStart, loadi responseCounter
+	skipcond 800
+		jump playbackLoopEnd
+	output
+	load responseCounter
+	add one
+	store responseCounter
+	jump playbackLoopStart
+	playbackLoopEnd, clear
+
+halt