SD6830 datasheet(22/34 Pages) AUK

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KSI-W002-000

CLRB F

Binary code

00001010

Syntax

[<label>] CLRB F

Operation

F.(L) ← 0

Flags

CY: Unaffected

SF: Unaffected

Words/Cycles

1/1

Description

: Clears the specified bit of port F addressed by the lower 3-bit of register

L to zero.

Example

: LDL 13 ; Load 13 to L

CLRB

: Clears the bit 5 of F to zero

CLRB G

Binary code

: 00101100

Syntax

: [<label>] CLRB G

Operation

: G.(L) ← 0

Flags

: CY: Unaffected

SF: Unaffected

Words/Cycles

1/1

Description

: Clears the port G to zero.

Example

CLRB

; Clear G to zero

CLRB H

Binary code

00100100

Syntax

[<label>] CLRB H

Operation

(H) ← 0

Flags

CY: Unaffected

SF: Unaffected

Words/Cycles

1/1

Description

: Clears the contents of register H to zero. Skip this instruction if it or

SETB H was used just before.

Example

: IFEQU 1

CLRB H

; Clear H to zero and skip continuous SETB H/CLRB H, if (A)≠1

SETB H

; Sets H to one and skip continuous SETB H/CLRB H, if (A)=1

SD6830

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