XCHD - 8051

The XCHD instruction exchanges the low-order nibble of the accumulator with the low-order nibble of the specified internal RAM location.
The internal RAM is accessed indirectly through R0 or R1.
The high-order nibbles of each operand are not affected.

Syntax

XCHD A,@Ri

Example

XCHD A,@R1	;1 byte 1 cycle

Output / Return Value

Limitations

Alternatives / See Also

Reference