79 ;r3 ... effective stack address
80 ;r4 ... effective input addr
85 ;load base address of stack
92 ;generate effective input addr
139 ;case 0 1 2 3 4 5 6 7 8 9
146 ;increment stack addr
161 ;compare sp-1 with sp
163 ;set r8 to -1 if less than
177 ;increment stack addr
204 ;store result to stack
219 ;increment pc if == 0
232 ;decrement stack addr