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SD6830 Datasheet, PDF (22/34 Pages) AUK corp – 4BIT MICROCONTROLLER
SD6830
CLRB F
Binary code
Syntax
Operation
Flags
Words/Cycles
Description
L to zero.
Example
CLRB F
: 00001010
: [<label>] CLRB F
: F.(L) 0
: CY: Unaffected SF: Unaffected
: 1/1
: Clears the specified bit of port F addressed by the lower 3-bit of register
: LDL 13 ; Load 13 to L
: Clears the bit 5 of F to zero
CLRB G
Binary code
Syntax
Operation
Flags
Words/Cycles
Description
Example
: 00101100
: [<label>] CLRB G
: G.(L) 0
: CY: Unaffected
SF: Unaffected
: 1/1
: Clears the port G to zero.
: CLRB G ; Clear G to zero
CLRB H
Binary code
Syntax
Operation
Flags
Words/Cycles
Description
Example
: 00100100
: [<label>] CLRB H
: (H) 0
: CY: Unaffected
SF: Unaffected
: 1/1
: Clears the contents of register H to zero. Skip this instruction if it or
SETB H was used just before.
: 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
KSI-W002-000
22