Datasheet

 2001-2013 Microchip Technology Inc. DS35007C-page 37
PIC16F84A
7.1 Instruction Descriptions
ADDLW Add Literal and W
Syntax: [label] ADDLW k
Operands: 0  k  255
Operation: (W) + k  (W)
Status Affected: C, DC, Z
Description: The contents of the W register
are added to the eight-bit literal 'k'
and the result is placed in the W
register.
ADDWF Add W and f
Syntax: [label] ADDWF f,d
Operands: 0  f  127
d 
Operation: (W) + (f)  (destination)
Status Affected: C, DC, Z
Description: Add the contents of the W register
with register 'f'. If 'd' is 0, the result
is stored in the W register. If 'd' is
1, the result is stored back in
register 'f'.
ANDLW AND Literal with W
Syntax: [label] ANDLW k
Operands: 0  k  255
Operation: (W) .AND. (k)  (W)
Status Affected: Z
Description: The contents of W register are
AND’ed with the eight-bit literal
'k'. The result is placed in the W
register.
ANDWF AND W with f
Syntax: [label] ANDWF f,d
Operands: 0  f  127
d 
Operation: (W) .AND. (f)  (destination)
Status Affected: Z
Description: AND the W register with register
'f'. If 'd' is 0, the result is stored in
the W register. If 'd' is 1, the result
is stored back in register 'f'.
BCF Bit Clear f
Syntax: [label] BCF f,b
Operands: 0  f  127
0  b  7
Operation: 0  (f<b>)
Status Affected: None
Description: Bit 'b' in register 'f' is cleared.
BSF Bit Set f
Syntax: [label] BSF f,b
Operands: 0  f  127
0  b  7
Operation: 1  (f<b>)
Status Affected: None
Description: Bit 'b' in register 'f' is set.
BTFSS Bit Test f, Skip if Set
Syntax: [label] BTFSS f,b
Operands: 0  f  127
0  b < 7
Operation: skip if (f<b>) = 1
Status Affected: None
Description: If bit 'b' in register 'f' is '0', the next
instruction is executed.
If bit 'b' is '1', then the next instruc-
tion is discarded and a NOP is exe-
cuted instead, making this a 2T
CY
instruction.