AH500 Programming Manual Symbol: S 1 ： Data source 1 Word/Double word S 2 ： Data source 2 Word/Double word D ： Operation result Word/Double word Explanation: 1. The logical operator XOR takes the binary representations in S 1 and S 2 , and performs the logical exclusive OR operation on each pair of corresponding bits. The operation result is stored in D . 2. Only the instruction DXOR can use the 32-bit counter. 3. The result in each position is 1 if the two bits are different, and 0 if they are the same. Example 1:
When X0.0 is ON, the logical operator XOR takes the data in the 16-bit device Y0 and the 16-bit device Y2, and performs the exclusive OR operation on each pair of corresponding bits. The operation result is stored in Y4.
S1 b0 b15 Y0 Before the instruction is executed S2 Y2 After the instruction is executed D Y4 b0 b15 6-202 API Instruction code Operand Function 0804 W D XOR P S , S , D 1 2 Logical exclusive OR operation Device X Y M S T C HC D L SM SR E PR K 16# “$” DF S 1 S 2 D Pulse instruction 16-bit instruction (7 steps) 32-bit instruction (7 steps) AH500 AH500 AH500 01 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 1 1 1 1 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1 1 1 1 0 0 0 0