PIC12C509AT-04ESM 查看數據表（PDF） - Microchip Technology

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PIC12C509AT-04ESM

8-Pin, 8-Bit CMOS Microcontrollers

Microchip Technology 

ADDWF

Add W and f

Syntax:

[ label ] ADDWF f,d

Operands:

0 ≤ f ≤ 31

d ∈ [0,1]

Operation:

(W) + (f) → (dest)

Status Affected: C, DC, Z

Encoding:

0001 11df ffff

Description:

Add the contents of the W register and

register ’f’. If ’d’ is 0 the result is stored

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

stored back in register ’f’.

Words:

1

Cycles:

1

Example:

ADDWF FSR, 0

Before Instruction

W = 0x17

FSR = 0xC2

After Instruction

W = 0xD9

FSR = 0xC2

ANDLW

And literal with W

Syntax:

[ label ] ANDLW k

Operands:

0 ≤ k ≤ 255

Operation:

(W).AND. (k) → (W)

Status Affected: Z

Encoding:

1110 kkkk kkkk

Description:

The contents of the W register are

AND’ed with the eight-bit literal 'k'. The

result is placed in the W register.

Words:

1

Cycles:

1

Example:

ANDLW 0x5F

Before Instruction

W = 0xA3

After Instruction

W = 0x03

PIC12C5XX

ANDWF

AND W with f

Syntax:

[ label ] ANDWF f,d

Operands:

0 ≤ f ≤ 31

d ∈ [0,1]

Operation:

(W) .AND. (f) → (dest)

Status Affected: Z

Encoding:

0001 01df ffff

Description:

The contents of the W register are

AND’ed with register 'f'. If 'd' is 0 the

result is stored in the W register. If 'd' is

'1' the result is stored back in register 'f'.

Words:

1

Cycles:

1

Example:

ANDWF FSR, 1

Before Instruction

W = 0x17

FSR = 0xC2

After Instruction

W = 0x17

FSR = 0x02

BCF

Bit Clear f

Syntax:

[ label ] BCF f,b

Operands:

0 ≤ f ≤ 31

0≤b≤7

Operation:

0 → (f<b>)

Status Affected: None

Encoding:

0100 bbbf ffff

Description:

Bit 'b' in register 'f' is cleared.

Words:

1

Cycles:

1

Example:

BCF

FLAG_REG, 7

Before Instruction

FLAG_REG = 0xC7

After Instruction

FLAG_REG = 0x47

© 1999 Microchip Technology Inc.

DS40139E-page 49

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