PRESERVE8
THUMB
AREA |.text|, CODE, READONLY
EXPORT __main
__main
    LDR R0,= 0
    CMP R0, #3
    BHI default_case
    MOVS R2, #4
    MULS R0,R0,R2
    LDR R1,= BranchTable
    LDR R2, [R1,R0]
    BX R2
    ALIGN 4
BranchTable
    DCD Dest0
    DCD Dest1
    DCD Dest2
    DCD Dest3
default_case
    stop
        B stop
Dest0 
    LDR R0, =10
    stop1
        B stop1
Dest1 
    LDR R0, =20
    stop2
        B stop2  
Dest2 
    LDR R0, =30
    stop3
        B stop3   
Dest3 
    LDR R0, =40
    stop4 
        B stop4
END