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PIC16F72/ML 数据表(PDF) 82 Page - Microchip Technology |
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PIC16F72/ML 数据表(HTML) 82 Page - Microchip Technology |
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82 / 136 page ![]() PIC16F72 DS39597B-page 80 2002 Microchip Technology Inc. SUBLW Subtract W from Literal Syntax: [ label ] SUBLW k Operands: 0 ≤ k ≤ 255 Operation: k - (W) → (W) Status Affected: C, DC, Z Description: The W register is subtracted (2’s complement method) from the eight-bit literal ‘k’. The result is placed in the W register. SUBWF Subtract W from f Syntax: [ label ] SUBWF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: (f) - (W) → (destination) Status Affected: C, DC, Z Description: Subtract (2’s complement method) W register from register ‘f’. If ‘d’ = ‘0’, the result is stored in the W register. If ‘d’ = ‘1’, the result is stored back in register ‘f’. SWAPF Swap Nibbles in f Syntax: [ label ] SWAPF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: (f<3:0>) → (destination<7:4>), (f<7:4>) → (destination<3:0>) Status Affected: None Description: The upper and lower nibbles of register ‘f’ are exchanged. If ‘d’ = ‘0’, the result is placed in W register. If ‘d’ = ‘1’, the result is placed in register ‘f’. XORLW Exclusive OR Literal with W Syntax: [ label ]XORLW k Operands: 0 ≤ k ≤ 255 Operation: (W) .XOR. k → (W) Status Affected: Z Description: The contents of the W register are XOR’ed with the eight-bit literal ‘k’. The result is placed in the W register. XORWF Exclusive OR W with f Syntax: [ label ] XORWF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: (W) .XOR. (f) → (destination) Status Affected: Z Description: Exclusive OR the contents of the W register with register ‘f’. If ‘d’ = ‘0’, the result is stored in the W register. If ‘d’ = ‘1’, the result is stored back in register ‘f’. |
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