Setbit, Clearbit Problem


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For some reason, I need to set and reset each bit of a variable and then transmit it. After a lot trial, I find that the setbit, clearbit function don't work. Here is my test code, it is very simple:

Global m

m = 0b00000011

clearbit(m, 1)

I use a variable box to observe the m, with or without line 3 (clearbit(m,1)), the box always shows "3".

Can you help me? Anything I overlooked?



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