# INITIALISE VARIABLES
SET REGA 4
SET REGB 610
SET REGC 0
# JUMP TO END IF A == 0
SET REGX REGA
JMP 28
# ELSE, HALVE A
SHR REGA 1
# DOUBLE B
SHL REGB 1
# CHECK IF A IS ODD
SET REGX REGA
AND REGX 1
# IF IT'S EVEN, CHECK IF A == 1
JMP 20
# ELSE, ADD B TO THE RESULT
ADD REGC REGB
# CHECK IF A == 1
SET REGX REGA
# JMP JUMPS ON A 0, NOT A 1
SUB REGX 1
# IF IT IS, JUMP TO THE END OF THE LOOP
JMP 28
# ELSE, JUMP TO THE BEGINNING OF THE LOOP
SET REGX 0
JMP 8
# PRINTS THE RESULT
PRT REGC
# EXITS THE PROGRAM
NOP