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PIC18F258-E/LSQTP Datasheet(PDF) 289 Page - Microchip Technology |
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PIC18F258-E/LSQTP Datasheet(HTML) 289 Page - Microchip Technology |
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289 / 402 page ![]() © 2006 Microchip Technology Inc. DS41159E-page 287 PIC18FXX8 25.2 Instruction Set ADDLW ADD Literal to W Syntax: [ label ] ADDLW k Operands: 0 ≤ k ≤ 255 Operation: (W) + k → W Status Affected: N, OV, C, DC, Z Encoding: 0000 1111 kkkk kkkk Description: The contents of W are added to the 8-bit literal ‘k’ and the result is placed in W. Words: 1 Cycles: 1 Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read literal ‘k’ Process Data Write to W Example: ADDLW 0x15 Before Instruction W = 0x10 After Instruction W = 0x25 ADDWF ADD W to f Syntax: [ label ] ADDWF f [,d [,a]] Operands: 0 ≤ f ≤ 255 d ∈ [0,1] a ∈ [0,1] Operation: (W) + (f) → dest Status Affected: N, OV, C, DC, Z Encoding: 0010 01da ffff ffff Description: Add W to register ‘f’. If ‘d’ is ‘0’, the result is stored in W. If ‘d’ is ‘1’, the result is stored back in register ‘f’ (default). If ‘a’ is ‘0’, the Access Bank will be selected. If ‘a’ is ‘1’, the BSR is used. Words: 1 Cycles: 1 Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read register ‘f’ Process Data Write to destination Example: ADDWF REG, W Before Instruction W = 0x17 REG = 0xC2 After Instruction W= 0xD9 REG = 0xC2 |
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