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PIC18F258-E/LSQTP Datasheet(PDF) 290 Page - Microchip Technology |
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PIC18F258-E/LSQTP Datasheet(HTML) 290 Page - Microchip Technology |
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290 / 402 page ![]() PIC18FXX8 DS41159E-page 288 © 2006 Microchip Technology Inc. ADDWFC ADD W and Carry bit to f Syntax: [ label ] ADDWFC f [,d [,a]] Operands: 0 ≤ f ≤ 255 d ∈ [0,1] a ∈ [0,1] Operation: (W) + (f) + (C) → dest Status Affected: N, OV, C, DC, Z Encoding: 0010 00da ffff ffff Description: Add W, the Carry flag and data memory location ‘f’. If ‘d’ is ‘0’, the result is placed in W. If ‘d’ is ‘1’, the result is placed in data memory location ‘f’. If ‘a’ is ‘0’, the Access Bank will be selected. If ‘a’ is ‘1’, the BSR will not be overridden. Words: 1 Cycles: 1 Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read register ‘f’ Process Data Write to destination Example: ADDWFC REG, W Before Instruction Carry bit = 1 REG = 0x02 W = 0x4D After Instruction Carry bit = 0 REG = 0x02 W = 0x50 ANDLW AND Literal with W Syntax: [ label ] ANDLW k Operands: 0 ≤ k ≤ 255 Operation: (W) .AND. k → W Status Affected: N, Z Encoding: 0000 1011 kkkk kkkk Description: The contents of W are ANDed with the 8-bit literal ‘k’. 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: ANDLW 0x5F Before Instruction W= 0xA3 After Instruction W = 0x03 |
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