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AM188EM-20VIW 参数 Datasheet PDF下载

AM188EM-20VIW图片预览
型号: AM188EM-20VIW
PDF下载: 下载PDF文件 查看货源
内容描述: 8位/ 16位微控制器 [8-Bit/16-Bit Microcontrollers]
分类和应用: 微控制器
文件页数/大小: 146 页 / 1574 K
品牌: INNOVASIC [ INNOVASIC, INC ]
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IA186EM/IA188EM  
Data Sheet  
8-Bit/16-Bit Microcontrollers  
February 25, 2011  
7.2.1 Opcode  
Opcode parameters and definitions are provided below.  
Parameter Definition  
/0 - /7  
The Auxiliary Field in the Operand Address byte specifies an extension (from 000 to 111,  
i.e., 0 to 7) to the opcode instead of a register. Thus, the opcode for adding (AND) an  
immediate byte to a general byte register or a byte in memory is ―80 /4 ib.This indicates  
that the second byte of the opcode is ―mod 100 r/m.‖  
/r  
The Auxiliary Field in the Operand Address byte specifies a register rather that an opcode  
extension. The opcode byte specifies which register, either byte size or word size, is  
assigned as in the aux code above.  
/sr  
This byte is placed before the instruction as shown in Section 7.1.7, Segment Override  
Prefix.  
cb  
cd  
The byte following the Opcode byte specifies the offset.  
The double word following the Opcode byte specifies the offset and is some cases a  
segment.  
ib  
iw  
rw  
Immediate bytesigned or unsigned determined by the Opcode byte.  
Immediate wordsigned or unsigned determined by the Opcode byte.  
Word register operand as determined by the Opcode byte, aux field.  
7.2.2 Flags Affected After Instruction  
Flags affected after instruction are shown below.  
U
-
Undefined  
Unchanged  
R
Result-dependent  
®
IA211050831-19  
UNCONTROLLED WHEN PRINTED OR COPIED  
http://www.Innovasic.com  
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