PIC876 datasheet(143/218 Pages) MICROCHIP

143 / 218 page

 2001 Microchip Technology Inc.

DS30292C-page 141

PIC16F87X

RLF

Rotate Left f through Carry

Syntax:

[ label ] RLF

f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

See description below

Status Affected:

Description:

The contents of register ’f’ are rotated

one bit to the left through the Carry

Flag. If ’d’ is 0, the result is placed in

the W register. If ’d’ is 1, the result is

stored back in register ’f’.

RETURN

Return from Subroutine

Syntax:

[ label ]

RETURN

Operands:

None

Operation:

TOS

→ PC

Status Affected:

None

Description:

Return from subroutine. The stack

is POPed and the top of the stack

(TOS) is loaded into the program

counter. This is a two-cycle

instruction.

RRF

Rotate Right f through Carry

Syntax:

[ label ]

RRF f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

See description below

Status Affected:

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 the W register. If ’d’ is

1, the result is placed back in

SLEEP

Syntax:

[ label ] SLEEP

Operands:

None

Operation:

00h

→ WDT,

→ WDT prescaler,

→ TO,

→ PD

Status Affected:

TO, PD

Description:

The power-down status bit, PD is

cleared. Time-out status bit, TO

is set. Watchdog Timer and its

prescaler are cleared.

The processor is put into SLEEP

mode with the oscillator stopped.

SUBLW

Subtract W from Literal

Syntax:

[ label ] SUBLW k

Operands:

≤ k ≤ 255

Operation:

k - (W)

→ (W)

Status Affected: C, DC, Z

Description:

The W register is subtracted (2’s

complement method) from the

eight-bit literal 'k'. The result is

placed in the W register.

SUBWF

Subtract W from f

Syntax:

[ label ] SUBWF f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f) - (W)

→ (destination)

Status

Affected:

C, DC, Z

Description:

Subtract (2’s complement method)

W register from register 'f'. If 'd' is 0,

the result is stored in the W

stored back in register 'f'.

PIC876 датащи(PDF) 143 Page - Microchip Technology

PIC876 датащи(HTML) 143 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL