PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 233

• Manufacturer Part Number: PIC18F1220
• Description: 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

TSTFSZ
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
 2004 Microchip Technology Inc.
Q Cycle Activity:
If skip:
If skip and followed by 2-word instruction:
Before Instruction
After Instruction
operation
operation
operation
Decode
PC
If CNT
PC
If CNT
PC
Q1
Q1
Q1
No
No
No
register ‘f’
operation
operation
operation
Test f, skip if 0
[ label ] TSTFSZ f [,a]
0
a
skip if f = 0
None
If ‘f’ = 0, the next instruction,
fetched during the current
instruction execution is discarded
and a NOP is executed, making this
a two-cycle instruction. If ‘a’ is ‘0’,
the Access Bank will be selected,
overriding the BSR value. If ‘a’ is
‘1’, then the bank will be selected
as per the BSR value (default).
1
1(2)
Note: 3 cycles if skip and followed
HERE
NZERO
ZERO
Read
0110
Q2
Q2
Q2
No
No
No
=
=
=
=
f
[0,1]
255
by a 2-word instruction.
Address (HERE)
0x00,
Address (ZERO)
0x00,
Address (NZERO)
TSTFSZ CNT
:
:
011a
operation
operation
operation
Process
Data
Q3
Q3
Q3
No
No
No
ffff
operation
operation
operation
operation
Q4
Q4
Q4
No
No
No
No
ffff
XORLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
W
W
Q1
PIC18F1220/1320
=
=
literal ‘k’
Exclusive OR literal with W
[ label ] XORLW k
0
(W) .XOR. k
N, Z
The contents of W are XOR’ed
with the 8-bit literal ‘k’. The result
is placed in W.
1
1
XORLW 0xAF
Read
Q2
0000
0xB5
0x1A
k
255
1010
Process
Data
Q3
DS39605C-page 231
W
kkkk
Write to W
Q4
kkkk