XCH - 8051

The XCH instruction loads the accumulator with the byte value of the specified operand while simultaneously storing the previous contents of the accumulator in the specified operand.

Syntax

XCH source,destination

Example

XCH A,@R0	;1 byte  1 cycle
XCH A,30h	;2 bytes 1 cycle
XCH A,R6	;1 byte  1 cycle

Output / Return Value

Limitations

Alternatives / See Also

Reference