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DP80390 датащи(PDF) 82 Page - Digital Core Design |
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DP80390 датащи(HTML) 82 Page - Digital Core Design |
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82 / 84 page ![]() DP80390 Instructions set details - 82 - All trademarks mentioned in this document http://www.DigitalCoreDesign.com are trademarks of their respective owners. http://www.dcd.pl Copyright 1999-2003 DCD – Digital Core Design. All Rights Reserved. 3.44. XRL Instruction: XRL <dest-byte>, <src-byte> Function: Logical Exclusive OR for byte variables Description: XRL performs the bit wise logical Exclusive OR operation between the indicated variables, storing the results in the destination. No flags are affected (except P, if <dest-byte> = A). The two operands allow six addressing mode combinations. When the destination is the accumulator, the source can use register, direct, register-indirect, or immediate addressing; when the destination is a direct address, the source can be accumulator or immediate data. Note: When this instruction is used to modify an output port, the value used as the original port data will be read from the output data latch, not the input pins. 3.44.1. XRL A, RN Operation: (PC) ← (PC) + 1 (A) ← (A) xor (Rn) Bytes: 1 Cycles: 1 Encoding: 0 1 1 0 1 r r r 3.44.2. XRL A, DIRECT Operation: (PC) ← (PC) + 2 (A) ← (A) xor (direct) Bytes: 2 Cycles: 2 Encoding: 0 1 1 0 0 1 0 1 direct address |
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