MOV $0xFF0000,%SP
MOV $0x0000,%R0h
MOV $DATA,%R0l
PUSH %R0
MOV $DATA_END,%R0l
PUSH %R0
CALL $QUICKSORT
HALT

:QUICKSORT
#Get parameters from stack
MOV %SP,%R0
MOV $0x0000,%R1h
MOV $0x0004,%R1l
SUB %R1,%R0
SUB %R1,%R0
MOV (%R0),%R2
SUB %R1,%R0
MOV (%R0),%R3

#Compare input and quit if start >= end
CMP %R2,%R3
JMP,NS $BAIL

ADD %R2,%R3

:BAIL
RET


:DATA
DDW $0x00000000
DDW $0x00000004
DDW $0x00000009
DDW $0x00000031
DDW $0x000000BB
DDW $0x0000000e
DDW $0x00000002
DDW $0x000000BB
DDW $0x01000000
:DATA_END
DDW $0xFFFFFFFF