Datasheet

PIC16C63A/65B/73B/74B
DS30605D-page 106  1998-2013 Microchip Technology Inc.
SUBLW Subtract W from Literal
Syntax: [ label ] SUBLW k
Operands: 0 k 255
Operation: k - (W) W)
Status Affected: C, DC, Z
Description:
The W register is subtracted (2’s com-
plement method) from the eight bit lit-
eral 'k'. The result is placed in the W
register.
SUBWF Subtract W from f
Syntax: [ label ] SUBWF f,d
Operands: 0 f 127
d  [0,1]
Operation: (f) - (W) destination)
Status Affected: C, DC, Z
Description:
Subtract (2’s complement method) W
register from 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'.
SWAPF Swap Nibbles in f
Syntax: [ label ] SWAPF f,d
Operands: 0  f  127
d  [0,1]
Operation: (f<3:0>)  (destination<7:4>),
(f<7:4>)  (destination<3:0>)
Status Affected: None
Description:
The upper and lower nibbles of regis-
ter 'f' are exchanged. If 'd' is 0, the
result is placed in W register. If 'd' is 1,
the result is placed in register 'f'.
XORLW Exclusive OR Literal with W
Syntax: [label] XORLW k
Operands: 0 k 255
Operation: (W) .XOR. k W)
Status Affected: Z
Description:
The contents of the W register are
XOR’ed with the eight bit literal 'k'.
The result is placed in the W
register.
XORWF Exclusive OR W with f
Syntax: [label] XORWF f,d
Operands: 0  f  127
d  [0,1]
Operation: (W) .XOR. (f) destination)
Status Affected: Z
Description:
Exclusive OR 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'.