Datasheet

 1997 Microchip Technology Inc. DS30444E - page 129
PIC16C9XX
IORLW Inclusive OR Literal with W
Syntax: [
label ] IORLW k
Operands: 0 ≤ k ≤ 255
Operation: (W) .OR. k → (W)
Status Affected: Z
Encoding:
11 1000 kkkk kkkk
Description: The contents of the W register is
OR’ed with the eight bit literal 'k'. The
result is placed in the W register.
Words: 1
Cycles: 1
Q Cycle Activity: Q1 Q2 Q3 Q4
Decode Read
literal 'k'
Process
data
Write to
W
Example
IORLW 0x35
Before Instruction
W = 0x9A
After Instruction
W = 0xBF
Z = 1
IORWF Inclusive OR W with f
Syntax: [
label ] IORWF f,d
Operands: 0 ≤ f ≤ 127
d ∈ [0,1]
Operation: (W) .OR. (f) → (destination)
Status Affected: Z
Encoding:
00 0100 dfff ffff
Description:
Inclusive OR the W register with regis-
ter 'f'. 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
destination
Example
IORWF
RESULT, 0
Before Instruction
RESULT = 0x13
W = 0x91
After Instruction
RESULT = 0x13
W = 0x93
Z = 1