Datasheet

PIC16CE62X
DS40182D-page 68  1998-2013 Microchip Technology Inc.
BCF Bit Clear f
Syntax: [
label ] BCF f,b
Operands: 0  f  127
0  b  7
Operation: 0  (f<b>)
Status Affected: None
Encoding:
01 00bb bfff ffff
Description: Bit 'b' in register 'f' is cleared.
Words: 1
Cycles: 1
Example
BCF FLAG_REG, 7
Before Instruction
FLAG_REG = 0xC7
After Instruction
FLAG_REG = 0x47
BSF Bit Set f
Syntax: [
label ] BSF f,b
Operands: 0  f  127
0  b  7
Operation: 1  (f<b>)
Status Affected: None
Encoding:
01 01bb bfff ffff
Description:
Bit 'b' in register 'f' is set.
Words: 1
Cycles: 1
Example
BSF FLAG_REG, 7
Before Instruction
FLAG_REG = 0x0A
After Instruction
FLAG_REG = 0x8A
BTFSC Bit Test, Skip if Clear
Syntax: [
label ] BTFSC f,b
Operands: 0  f  127
0  b  7
Operation: skip if (f<b>) = 0
Status Affected: None
Encoding:
01 10bb bfff ffff
Description:
If bit 'b' in register 'f' is '0', then the next
instruction is skipped.
If bit 'b' is '0', then the next instruction
fetched during the current instruction
execution is discarded, and a NOP is
executed instead, making this a
two-cycle instruction
.
Words: 1
Cycles: 1(2)
Example
HERE
FALSE
TRUE
BTFSC
GOTO
•
•
•
FLAG,1
PROCESS_CODE
Before Instruction
PC = address HERE
After Instruction
if FLAG<1> = 0,
PC = address TRUE
if FLAG<1>=1,
PC = address FALSE