PIC18F1230 MICROCHIP [Microchip Technology], PIC18F1230 Datasheet - Page 221

• Manufacturer Part Number: PIC18F1230
• Description: 18/20/28-Pin, Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

BRA
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
© 2006 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
operation
Decode
PC
PC
Q1
No
Unconditional Branch
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
Read literal
operation
1101
HERE
Q2
No
‘n’
=
=
n
n
address (HERE)
address (Jump)
1023
0nnn
BRA
operation
PC
Process
Data
Q3
No
Jump
nnnn
Advance Information
operation
Write to
Q4
PC
No
nnnn
BSF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
FLAG_REG
FLAG_REG
PIC18F1230/1330
Q1
register ‘f’
Bit Set f
BSF
0
0
a
1
None
Bit ‘b’ in register ‘f’ is set.
If ‘a’ is ‘0’, the Access Bank is selected.
If ‘a’ is ‘1’, the BSR is used to select the
GPR bank (default).
If ‘a’ is ‘0’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f
Section 21.2.3 “Byte-Oriented and
Bit-Oriented Instructions in Indexed
Literal Offset Mode” for details.
1
1
BSF
Read
1000
Q2
=
=
f
b
[0,1]
f<b>
f, b {,a}
255
7
0Ah
8Ah
FLAG_REG, 7, 1
bbba
Process
Data
Q3
DS39758B-page 219
95 (5Fh). See
ffff
register ‘f’
Write
Q4
ffff