keyboard reading code from Notch himself

dcpu16 · Apr 5, 2012 · d3d99a9 · d3d99a9
1 parent 037c879
commit d3d99a9
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/keyboard_reader.asm b/keyboard_reader.asm
@@ -0,0 +1,20 @@
+; Reading characters from the keyboard
+; by Markus Persson
+
+#macro nextkey(target) {
+	push(i)
+	set i,[keypointer]
+	add i,0x9000
+	set target,[i]
+	ife target,0
+		jmp end
+	
+	set [i],0
+	add [keypointer], 1
+	and [keypointer], 0xf
+:end
+	pop(i)
+}
+
+:keypointer
+dat 0