PIC18F4680ISPQTP datasheet(368/482 Pages) MICROCHIP

368 / 482 page

PIC18F2585/2680/4585/4680

DS39625C-page 366

Preliminary

LITERAL OPERATIONS

ADDLW

ANDLW

IORLW

LFSR

MOVLB

MOVLW

MULLW

RETLW

SUBLW

XORLW

f, k

Add literal and WREG

AND literal with WREG

Inclusive OR literal with WREG

Move literal (12-bit) 2nd word

to FSR(f)

1st word

Move literal to BSR<3:0>

Move literal to WREG

Multiply literal with WREG

Return with literal in WREG

Subtract WREG from literal

Exclusive OR literal with WREG

0000

1110

1111

0000

1111

1011

1001

1110

0000

0001

1110

1101

1100

1000

1010

kkkk

00ff

kkkk

0000

kkkk

C, DC, Z, OV, N

Z, N

None

C, DC, Z, OV, N

Z, N

DATA MEMORY

↔ PROGRAM MEMORY OPERATIONS

TBLRD*

TBLRD*+

TBLRD*-

TBLRD+*

TBLWT*

TBLWT*+

TBLWT*-

TBLWT+*

Table Read

Table Read with post-increment

Table Read with post-decrement

Table Read with pre-increment

Table Write

Table Write with post-increment

Table Write with post-decrement

Table Write with pre-increment

0000

1000

1001

1010

1011

1100

1101

1110

1111

None

TABLE 25-2:

PIC18FXXXX INSTRUCTION SET (CONTINUED)

Mnemonic,

Operands

Description

Cycles

16-Bit Instruction Word

Status

Affected

Notes

MSb

LSb

Note 1:

When a Port register is modified as a function of itself (e.g., MOVF PORTB, 1, 0), the value used will be that

value present on the pins themselves. For example, if the data latch is ‘1’ for a pin configured as input and is

driven low by an external device, the data will be written back with a ‘0’.

If this instruction is executed on the TMR0 register (and where applicable, ‘d’ = 1), the prescaler will be cleared

if assigned.

If Program Counter (PC) is modified or a conditional test is true, the instruction requires two cycles. The second

cycle is executed as a NOP.

Some instructions are two-word instructions. The second word of these instructions will be executed as a NOP

unless the first word of the instruction retrieves the information embedded in these 16 bits. This ensures that all

program memory locations have a valid instruction.

If the table write starts the write cycle to internal memory, the write will continue until terminated.

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