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PIC16C71-04/SP датащи(PDF) 76 Page - Microchip Technology |
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PIC16C71-04/SP датащи(HTML) 76 Page - Microchip Technology |
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76 / 176 page ![]() PIC16C71X DS30272A-page 76 © 1997 Microchip Technology Inc. GOTO Unconditional Branch Syntax: [ label ] GOTO k Operands: 0 ≤ k ≤ 2047 Operation: k → PC<10:0> PCLATH<4:3> → PC<12:11> Status Affected: None Encoding: 10 1kkk kkkk kkkk Description: GOTO is an unconditional branch. The eleven bit immediate value is loaded into PC bits <10:0>. The upper bits of PC are loaded from PCLATH<4:3>. GOTO is a two cycle instruction. Words: 1 Cycles: 2 Q Cycle Activity: Q1 Q2 Q3 Q4 1st Cycle Decode Read literal 'k' Process data Write to PC 2nd Cycle NOP NOP NOP NOP Example GOTO THERE After Instruction PC = Address THERE INCF Increment f Syntax: [ label ] INCF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: (f) + 1 → (dest) Status Affected: Z Encoding: 00 1010 dfff ffff Description: The contents of register 'f' are incre- mented. If 'd' is 0 the result is placed in the W register. If 'd' is 1 the result is placed back in register 'f'. Words: 1 Cycles: 1 Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read register 'f' Process data Write to dest Example INCF CNT, 1 Before Instruction CNT = 0xFF Z = 0 After Instruction CNT = 0x00 Z = 1 |
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