Datasheet

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