PIC18F010 datasheet(130/176 Pages) MICROCHIP

130 / 176 page

PIC18F010/020

DS41142A-page 128

Preliminary

 2001 Microchip Technology Inc.

RLNCF

Rotate Left f (no carry)

Syntax:

[ label ] RLNCF

f [ ,d [,a] ]

Operands:

≤ f ≤ 255

∈ [0,1]

Operation:

(f<n>)

→ dest<n+1>,

(f<7>)

→ dest<0>

Status Affected:

N,Z

Encoding:

0100

01da

ffff

Description:

The contents of register ’f’ are

rotated one bit to the left. If ’d’ is 0

the result is placed in WREG. If ’d’

is 1, the result is stored back in reg-

ister 'f' (default). If ’a’ is 0, the

Access Bank will be selected, over-

riding the BSR value. If ’a’ is 1, the

Bank will be selected as per the

BSR value.

Words:

Cycles:

Q Cycle Activity:

Decode

Read

Process

Data

Write to

destination

Example:

RLNCF

REG

Before Instruction

REG

1010 1011

After Instruction

REG

0101 0111

RRCF

Rotate Right f through Carry

Syntax:

[ label ]

RRCF f [ ,d [,a] ]

Operands:

≤ f ≤ 255

∈ [0,1]

Operation:

(f<n>)

→ dest<n-1>,

(f<0>)

→ C,

(C)

→ dest<7>

Status Affected:

C,N,Z

Encoding:

0011

00da

ffff

Description:

The contents of register 'f' are

rotated one bit to the right through

the Carry Flag. If 'd' is 0, the result

is placed in WREG. If 'd' is 1, the

result is placed back in register 'f'

(default). If ’a’ is 0, the Access

Bank will be selected, overriding

the BSR value. If ’a’ is 1, the Bank

will be selected as per the BSR

value.

Words:

Cycles:

Q Cycle Activity:

Decode

Read

Process

Data

Write to

destination

Example:

RRCF

REG, W

Before Instruction

REG

1110 0110

After Instruction

REG

1110 0110

WREG

0111 0011

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