參數(shù)資料
型號: SD6830
廠商: AUK Corp
英文描述: 4BIT MICROCONTROLLER
中文描述: 4位單片機
文件頁數(shù): 20/34頁
文件大?。?/td> 122K
代理商: SD6830
KSI-W002-000
20
9.3 Instruction Descriptions
ADD n
Binary code : 0110xxxx
Syntax : [< label> ] ADD n
Operation : (A)
Flags : CY: Unaffected. SF: Set to one if carry occurs, cleared otherwise.
Words/Cycles : 1/1
Description : Adds an immediate data to the accumulator and stores the result in
the accumulate.
Example : ADD 8 ; Add 8 to A.
JMP 035 ; Jump to 035 if 0
A 7
JMP 05F ; Jump to 05F if 8
A
15
ADDC @HL
Binary code 00010000
Syntax : [< label> ] ADDC @HL
Operation : (A)
(A) + M[(HL)] + (CY), (CY)
Carry
Flags : CY: Set on carry-out of (A) + M[(HL)] + (CY)
SF: Unaffected
Words/Cycles : 1/1
Description : Adds the contents of the accumulator, the contents of data memory
addressed by registers H and L, and the carry bit. It stores the result in
the accumulator and the carry flag.
Example : CLRB CY ; Clear CY to zero
LDA 5 ; Load 5 to A
CLRB H ; Clear H to zero
LDL 6 ; Load 6 to L
ADDC @HL ; Add the content of A, M[(06)], and the content of CY
CAL addr
Binary code : 11xxxxxx
Syntax : [< label> ] CAL addr
Operation : (SK1)
(SK0), (SK0)
(PC) + 1, (PCL)
addr, addr = 000 ~ 03F
( addr must be hexadecimal number )
Flags : CY: Unaffected SF: Unaffected
Words/Cycles : 1/1
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
must be within the current page.
Example : CAL 100 : Call subroutine located at the 100. The 100 must be logical
address and within the current page.
(A) + n, n= 0~ 15 ( n must be decimal number )
SD6830
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