Datasheet

 1997-2013 Microchip Technology Inc. Preliminary DS30453E-page 55
PIC16C5X
GOTO Unconditional Branch
Syntax: [ label ] GOTO k
Operands: 0  k  511
Operation: k  PC<8:0>;
STATUS<6:5>  PC<10:9>
Status Affected: None
Encoding: 101k kkkk kkkk
Description: GOTO is an unconditional branch.
The 9-bit immediate value is
loaded into PC bits <8:0>. The
upper bits of PC are loaded from
STATUS<6:5>. GOTO is a two-
cycle instruction.
Words: 1
Cycles: 2
Example: GOTO THERE
After Instruction
PC = address (THERE)
INCF Increment f
Syntax: [ label ] INCF f,d
Operands: 0  f  31
d  [0,1]
Operation: (f) + 1  (dest)
Status Affected: Z
Encoding: 0010 10df ffff
Description: The contents of register 'f' are
incremented. 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
Example: INCF CNT, 1
Before Instruction
CNT = 0xFF
Z=0
After Instruction
CNT = 0x00
Z=1
INCFSZ Increment f, Skip if 0
Syntax: [ label ] INCFSZ f,d
Operands: 0  f  31
d  [0,1]
Operation: (f) + 1  (dest), skip if result = 0
Status Affected: None
Encoding: 0011 11df ffff
Description: The contents of register 'f' are
incremented. If 'd' is 0 the result is
placed in the W register. If 'd' is 1
the result is placed back in
register 'f'.
If the result is 0, then the next
instruction, which is already
fetched, is discarded and a NOP is
executed instead making it a two-
cycle instruction.
Words: 1
Cycles: 1(2)
Example: HERE INCFSZ CNT, 1
GOTO LOOP
CONTINUE •
•
•
Before Instruction
PC = address (HERE)
After Instruction
CNT = CNT + 1;
if CNT = 0,
PC = address (CONTINUE);
if CNT  0,
PC = address (HERE +1)