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Ax51 Introduction CPL

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Complement

Description  

The CPL instruction logically complements the value of the specified destination operand and stores the result back in the destination operand. Bits that previously contained a 1 will be changed to a 0 and bits that previously contained a 0 will be changed to a 1.
CPL A
C AC F0 RS1 RS0 OV P
Bytes   1
Cycles   1
Encoding   11110100
Operation   
CPL
A = NOT A
Example   
CPL A
CPL bit_address
C AC F0 RS1 RS0 OV P
Bytes   2
Cycles   1
Encoding   10110010, bit_address
Operation   
CPL
(bit_address) = NOT (bit_address)
Example   
CPL 55h
CPL C
C AC F0 RS1 RS0 OV P
Bytes   1
Cycles   1
Encoding   10110011
Operation   
CPL
C = NOT C
Example   
CPL C

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