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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STC89C53RC датащи(PDF) 55 Page - STCmicro Technology Co,.Ltd |
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STC89C53RC датащи(HTML) 55 Page - STCmicro Technology Co,.Ltd |
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55 / 165 page  INC @Ri Bytes: 1 Cycles: 1 Encoding: 0 0 0 0 0 1 1 i Operation: INC ((Ri))←((Ri)) + 1 ←((Ri)) + 1 ((Ri)) + 1 INC DPTR Function: Increment Data Pointer Description: Increment the 16-bit data pointer by 1. A 16-bit increment (modulo 216) is performed; an overflow of the low-order byte of the data pointer (DPL) from 0FFH to 00H will increment the high-order-byte (DPH). No flags are affected. This is the only 16-bit register which can be incremented. Example: Register DPH and DPL contains 12H and 0FEH,respectively. The instruction sequence, INC DPTR INC DPTR INC DPTR will change DPH and DPL to 13H and 01H. Bytes: 1 Cycles: 2 Encoding: 1 0 1 0 0 0 1 1 Operation: INC (DPTR) ← (DPTR)+1 ← (DPTR)+1 JB bit, rel Function: Jump if Bit set Description: If the indicated bit is a one, jump to the address indicated; otherwise proceed with the next instruction. The branch destination is computed by adding the signed relative-displacement in the third instruction byte to the PC, after incrementing the PC to the first byte of the next instruction. The bit tested is not modified. No flags are affected. Example: The data present at input port 1 is 11001010B. The Accumulator holds 56 (01010110B). The instruction sequence, JB P1.2, LABEL1 JB ACC.2, LABEL2 will cause program execution to branch to the instruction at label LABEL2. Bytes: 3 Cycles: 2 Encoding: 0 0 1 0 0 0 0 0 bit address rel. address Operation: JB (PC) ← (PC)+ 3 ← (PC)+ 3 (PC)+ 3 IF (bit) = 1 THEN (PC) ← (PC) + rel ← (PC) + rel (PC) + rel 55 |
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