PIC18F6X2X Datasheet, PDF (304/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
MOVFF
Move f to f
Syntax:
Operands:
Operation:
Status Affected:
[ label ] MOVFF f_s,f_d
0 ≤ f_s ≤ 4095
0 ≤ f_d ≤ 4095
(f_s) → f_d
None
Encoding:
1st word (source)
2nd word (destin.)
1100
1111
ffff
ffff
ffff ffff_s
ffff ffff_d
Description:
The contents of source register ‘f_s’
are moved to destination register
‘f_d’. Location of source ‘f_s’ can be
anywhere in the 4096-byte data
space (000h to FFFh), and location
of destination ‘f_d’ can also be any-
where from 000h to FFFh.
Either source or destination can be
W (a useful special situation).
MOVFF is particularly useful for
transferring a data memory location
to a peripheral register (such as the
transmit buffer or an I/O port).
The MOVFF instruction cannot use
the PCL, TOSU, TOSH or TOSL as
the destination register
Words:
2
Cycles:
2 (3)
Q Cycle Activity:
Q1
Q2
Decode
Decode
Read
register ‘f’
(src)
No
operation
No dummy
read
Q3
Process
Data
No
operation
Q4
No
operation
Write
register ‘f’
(dest)
Example:
MOVFF REG1, REG2
Before Instruction
REG1
=
REG2
=
0x33
0x11
After Instruction
REG1
=
REG2
=
0x33
0x33
MOVLB
Move literal to low nibble in BSR
Syntax:
[ label ] MOVLB k
Operands:
0 ≤ k ≤ 255
Operation:
k → BSR
Status Affected: None
Encoding:
0000 0001 kkkk kkkk
Description:
The 8-bit literal ‘k’ is loaded into
the Bank Select Register (BSR).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read literal
‘k’
Process
Data
Write
literal ‘k’ to
BSR
Example:
MOVLB 5
Before Instruction
BSR register =
After Instruction
BSR register =
0x02
0x05
DS39612A-page 302
Advance Information
 2003 Microchip Technology Inc.