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RosettaCodeData/Task/Twos-complement/ARM-Assembly/twos-complement.arm

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MOV R0,#0x0000000F
MOV R1,#1
MVN R0,R0 ;flips the bits of R0, R0 = 0xFFFFFFF0
ADD R0,R0,R1 ;R0 = 0xFFFFFFF1
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