參數(shù)資料
型號: μPD703003
廠商: NEC Corp.
英文描述: 16/32 Bit Single Chip Microcontrollers(16/32位單片微控制器)
中文描述: 16/32位單片機微控制器(16/32位單片微控制器)
文件頁數(shù): 47/82頁
文件大?。?/td> 592K
代理商: ΜPD703003
47
μ
PD703003
Table 15-2. Symbols Used to Indicate Opcodes
Symbol
Description
R
1-bit data of code specifying reg1 or regID
r
1-bit data of code specifying reg2
d
1 bit of displaced data
i
1 bit of immediate data
cccc
4-bit data used to indicate condition code
bbb
3-bit data used to specify bit number
Table 15-3. Symbols Used to Indicate Operations
Symbol
Description
Assign
GR [ ]
General register
SR [ ]
System register
zero-extend (n)
Zero-extend n up until word length
sign-extend (n)
Sign-extend n up until word length
load-memory (a, b)
Read data having size b from address a
store-memory (a, b, c)
Replace data b at address a with data having size c
load-memory-bit (a, b)
Read bit b from address a
store-memory-bit (a, b, c)
Write c to bit b from address a
saturated (n)
Execute saturation processing for n (n = complement to 2)
Calculation of n:
When n
7FFFFFFFH, result is 7FFFFFFFH.
When n
80000000H, result is 80000000H.
result
Result is indicated by flag operations
Byte
Byte (8 bits)
Halfword
Half word (16 bits)
Word
Word (32 bits)
+
Add
Subtract
||
Bit linkage
×
Multiply
÷
Divide
AND
Logical AND
OR
Logical OR
XOR
Exclusive OR
NOT
Logical NOT
logically shift left by
Logical shift left
logically shift right by
Logical shift right
arithmetically shift right by
Arithmetic shift right
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