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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DP80390 датащи(PDF) 58 Page - Digital Core Design |
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DP80390 датащи(HTML) 58 Page - Digital Core Design |
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58 / 84 page  DP80390 Instructions set details - 58 - 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. 3.25. MOVC* Instruction: MOVC A, @A + <base-reg> Function: Move code byte Description: The MOVC instructions load the accumulator with a code byte, or constant from program memory. The address of the byte fetched is the sum of the original unsigned eight-bit accumulator contents and the contents of a 16-bit/24-bit base register, which may be either the data pointer or the PC. In the latter case, the PC is incremented to the address of the following instruction before being added to the accumulator; otherwise the base register is not altered. 16-bit/24-bit addition is performed so a carry-out from the low-order eight bits may propagate through higher-order bits. No flags are affected. 3.25.1. MOVC A, @A + DPTR Operation: (PC) ← (PC) + 1 (A) ← ((A) + (DPTR)) Bytes: 1 Cycles: 5 Encoding: 1 0 0 1 0 0 1 1 3.25.2. MOVC A, @A + PC Operation: (PC) ← (PC) + 1 (A) ← ((A) + (PC)) Bytes: 1 Cycles: 4 Encoding: 1 0 0 0 0 0 1 1 * different registers are used in FLAT and LARGE mode |
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