79 ;r3 ... effective stack address
80 ;r4 ... effective input addr
85 ;load base address of stack
92 ;generate effective input addr
120 ;check if sp-1 is even or odd
126 ;if odd decrement sp-1
129 ;if last was not zero
171 ;case 0 1 2 3 4 5 6 7 8 9
178 ;increment stack addr
193 ;compare sp-1 with sp
195 ;set r8 to -1 if less than
209 ;increment stack addr
236 ;store result to stack
251 ;increment pc if == 0
264 ;decrement stack addr