參數(shù)資料
型號: NS32FV16-25
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 數(shù)字信號處理
英文描述: Advanced Imaging/Communication Signal Processors
中文描述: 16-BIT, 50 MHz, MIXED DSP, PQCC68
封裝: PLASTIC, LCC-68
文件頁數(shù): 17/102頁
文件大?。?/td> 1053K
代理商: NS32FV16-25
2.0 Architectural Description
(Continued)
TABLE 2-2. NS32FX164 Instruction Set Summary
(Continued)
INTEGER COMPARISON
Format
4
2
7
Operation
CMPi
CMPQi
CMPMi
Operands
gen,gen
short,gen
gen,gen,disp
Description
Compare.
Compare to signed 4-bit constant.
Compare multiple: disp bytes (1 to 16).
LOGICAL AND BOOLEAN
Format
Operation
Operands
Description
4
4
4
4
6
6
2
ANDi
ORi
BICi
XORi
COMi
NOTi
Scondi
gen,gen
gen,gen
gen,gen
gen,gen
gen,gen
gen,gen
gen
Logical AND.
Logical OR.
Clear selected bits.
Logical exclusive OR.
Complement all bits.
Boolean complement: LSB only.
Save condition code (cond) as a Boolean variable of size i.
SHIFTS
Format
Operation
Operands
Description
6
6
6
LSHi
ASHi
ROTi
gen,gen
gen,gen
gen,gen
Logical shift, left or right.
Arithmetic shift, left or right.
Rotate, left or right.
BIT FIELDS
Bit fields are values in memory that are not aligned to byte boundaries. Examples are PACKED arrays and records used in
Pascal. ‘‘Extract’’ instructions read and align a bit field. ‘‘Insert’’ instructions write a bit field from an aligned source.
Format
Operation
Operands
Description
8
8
7
7
8
EXTi
INSi
EXTSi
INSSi
CVTP
reg,gen,gen,disp
reg,gen,gen,disp
gen,gen,imm,imm
gen,gen,imm,imm
reg,gen,gen
Extract bit field (array oriented).
Insert bit field (array oriented).
Extract bit field (short form).
Insert bit field (short form).
Convert to bit field pointer.
ARRAYS
Format
8
8
Operation
CHECKi
INDEXi
Operands
reg,gen,gen
reg,gen,gen
Description
Index bounds check.
Recursive indexing step for multiple-dimensional arrays.
STRINGS
String instructions assign specific functions to the General
Purpose Registers:
R4 D Comparison Value
R3 D Translation Table Pointer
R2 D String 2 Pointer
R1 D String 1 Pointer
R0 D Limit Count
Options on all string instructions are:
B
(Backward):
Decrement string pointers after each
step rather than incrementing.
U
(Until match):
End instruction if String 1 entry matches
R4.
W
(While match): End instruction if String 1 entry does not
match R4.
All string instructions end when R0 decrements to zero.
17
相關(guān)PDF資料
PDF描述
NS32FX164-25 Advanced Imaging/Communication Signal Processors(高級圖象/通訊信號處理器)
NS32FX161-15 Advanced Imaging/Communication Signal Processors(高級圖象/通訊信號處理器)
NS32FX161-20 Advanced Imaging/Communication Signal Processors(高級圖象/通訊信號處理器)
NS32FX164V-15 Advanced Imaging/Communication Signal Processors
NS32FX164V-20 Advanced Imaging/Communication Signal Processors
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