JCB - 8051

The JBC instruction branches to the address specified in the second operand if the value of the bit specified in the first operand is 1.Otherwise, execution continues with the next instruction.

If the bit specified in the first operand is set, it is cleared. No flags are affected by this instruction.
Note : When this instruction is used to modify an output port, the value used as the port data is read from the output data latch, not the input pins of the port.

Syntax

JBC bit,offset

Example

JBC 44h		;3 bytes 2 cycles

Output / Return Value

Limitations

Alternatives / See Also

Reference