PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 291

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

BRA
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
2002 Microchip Technology Inc.
Before Instruction
After Instruction
operation
Decode
No
PC
PC
Q1
Read literal
operation
Unconditional Branch
[ label ] BRA
-1024
(PC) + 2 + 2n
None
Add the 2’s complement number
’2n’ to the PC. Since the PC will
have incremented to fetch the next
instruction, the new address will be
PC+2+2n. This instruction is a
two-cycle instruction.
1
2
HERE
1101
No
Q2
’n’
=
=
address (HERE)
address (Jump)
n
0nnn
BRA
operation
1023
Process
Data
No
Q3
n
PC
Jump
nnnn
Write to PC
operation
No
Q4
nnnn
BSF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
FLAG_REG
FLAG_REG
Q1
register ’f’
Bit Set f
[ label ] BSF
0
0
a
1
None
Bit 'b' in register 'f' is set. If ‘a’ is 0,
Access Bank will be selected, over-
riding the BSR value. If ‘a’ = 1, then
the bank will be selected as per the
BSR value.
1
1
BSF
Read
1000
Q2
=
=
f
b
[0,1]
f<b>
PIC18FXX8
255
7
0x0A
0x8A
FLAG_REG, 7
bbba
Process
Data
Q3
f,b[,a]
DS41159B-page 289
ffff
register ’f’
Write
Q4
ffff