i don't undertand what difference between these two expressions
movf x , 0
movf x, 1
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programming in assembly
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by geenbert » Wed May 09, 2012 12:00 am
The 0 and 1 is the destination bit that tells the microcontroller where to move x to.
The statement movf x,0 (destination bit 0) moves the content of x into the working register (W).
The statement movf x,1 (destination bit 1) moves the content of x into x. Since it was already there that seems rather pointless, but the purpose is to set the zero flag. This flag may be used in logical operations.
The statement movf x,0 (destination bit 0) moves the content of x into the working register (W).
The statement movf x,1 (destination bit 1) moves the content of x into x. Since it was already there that seems rather pointless, but the purpose is to set the zero flag. This flag may be used in logical operations.
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