Setbit, Clearbit Problem

[chanchungfat]

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?

Regards,

chanchungfat

[AzeoTech]

Yes. Clearbit is like pretty much any other function. It doesn't edit the variable passed in, but rather returns the result. So you want:

m = clearbit(m,1)

Think of it like Sin(). You wouldn't write just sin(m) and expect m to change to the sign of itself.