ram

 
READ 1
LOAD 1
STORE 2
JGTZ OK
HALT
OK: READ 1
LOAD 1
STORE 3
EZ: LOAD 2
SUB =1
STORE 2
JZ FIN
READ 1
LOAD 1
STORE 4
LOAD 3
SUB 4
JGTZ AB
LOAD 4
STORE 3
JMP EZ
AB: LOAD 3
STORE 3
JMP EZ
FIN: LOAD 3
WRITE 3