News: Reading Keyboard Input in 0x10c's DCPU-16 Assembly

The as of yet undocumented DAT op code can also be used to read keyboard input by simply referencing dat 0. Here's the code from Notch's pastebin:

; 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