AH500 Programming Manual Carry flag 0 b0 b15 Borrow flag D0 D1 D2 After the shift Borrow flag Carry flag D20 D21 D22 b0 b15 0 1 Example 2: When X0.0 is ON, SM616 is ON. The values of the bits are shifted to the right. Suppose SM615 is ON. After the values of the bits in the 16-bit registers D0~D2 are rotated to the right, the operation result is stored in the 16-bit registers D20~D22, and SM614 is OFF. b0 b15 Carry flag Borrow flag D0 D1 D2 After the shift Carry flag 1 D20 D21 D22 b0 b15 0 Borrow flag Additional remark: 1. If S + n -1 or D + n -1 exceeds the device range, the instruction is not executed, SM0 is ON, and the error code in SR0 is 16#2003. 2.
If n is less than 1, or if n is larger than 256, the instruction is not executed, SM0 is ON, and the error code in SR0 is 16#200B. 3. The flags: SM614: It is the carry flag for the matrix rotation/shift/output. SM615: It is the borrow flag for the matrix shift/output. SM616: It is the direction flag for the matrix rotation/shift.
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