SD6830 Ver la hoja de datos (PDF) - AUK -> KODENSHI CORP

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componentes Descripción

Fabricante

SD6830

4BIT MICROCONTROLLER

AUK -> KODENSHI CORP 

CALL addr

SD6830

Binary code : 010100xx

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Syntax

: [<label>] CALL addr

Operation : (SK1) ← (SK0), (SK0) ← (PC) + 1, (PC) ← addr, addr = 000 ~ 3FF

( addr must be hexadecimal number )

Flags

: CY: Unaffected

SF: Unaffected

Words/Cycles : 2/2

Description : Calls a subroutine located at the indicated address and pushes the

current contents of the program counter to the top of stack. The

indicated address can be anywhere in the full 1Kbyte memory space.

Example

: CALL 2FF ; Call subroutine located at the 2FF.

The 2FF must be logical address.

CLRB @HL.b

Binary code : 010110xx

Syntax

: [<label>] CLRB @HL.b

Operation : M[(HL)].b ← 0

Flags

: CY: Unaffected

SF: Unaffected

Words/Cycles : 1/1

Description : Clears the specified bit of data memory addressed by registers H and L

to zero.

Example

: CLRB H

; Clear H to 0

LDL 10

; Load 10 to L. The 10 must be decimal number.

CLRB @HL.0 ; Clear the bit 0 of M[(0A)] to 0.

CLRB CY

Binary code : 00001000

Syntax

: [<label>] CLRB CY

Operation : (CY) ← 0

Flags

: CY: Set to zero

SF: Unaffected

Words/Cycles: 1/1

Description : Clears the carry flag to zero.

Example

: CLRB CY ; Clear CY to zero

KSI-W002-000

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