參數(shù)資料
型號: μPD789806Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 76/125頁
文件大?。?/td> 366K
代理商: ΜPD789806Y
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
59
ADDW
Add Word
Word Data Addition
[Instruction format]
ADDW dst,src
[Operation]
dst,CY
dst + src
[Operand]
Mnemonic
Operand (dst,src)
ADDW
AX,#word
[Flag]
Z
AC
CY
×
×
×
[Description]
The destination operand (dst) specified with the 1st operand is added to the source operand (src) specified
with the 2nd operand and the result is stored in the destination operand (dst).
If the addition result shows that dst is 0, the Z flag is set to (1). In all other cases, the Z flag is cleared to (0).
If the addition generates a carry out of bit 15, the CY flag is set to (1). In all other cases, the CY flag is
cleared to (0).
As a result of addition, the AC flag becomes undefined.
[Description example]
ADDW AX,#0ABCDH;
ABCDH is added to the AX register and the result is stored in the AX register.
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