參數(shù)資料
型號(hào)： TS68882DESC02XA
廠商： ATMEL CORP
元件分類： 數(shù)學(xué)處理器
英文描述： CMOS Enhanced Floating-point Co-processor
中文描述： MATH COPROCESSOR, CPGA68
封裝： CERAMIC, PGA-68
文件頁(yè)數(shù)： 29/43頁(yè)
文件大?。?/td> 1414K
代理商： TS68882DESC02XA
29
TS68882
2119A
–
HIREL
–
04/02
Branch, Set, and Trap-on
Condition
The floating-point branch, set, and trap-on condition instructions implemented by the
TS68882 are similar to the equivalent integer instructions of the TS68000 Family pro-
cessors, except that more conditions exist due to the special values in IEEE floating-
point arithmetic. When a conditional instruction is executed, the TS68882 performs the
necessary condition checking and tells the MPU whether the condition is true or false;
the MPU then takes the appropriate action. Since the TS68882 and TS68020/TS68030
are closely coupled, the floating-point branch operations executed by the pair are very
fast.
The TS68882 conditional operations are:
where:
cc is one of the 32 floating-point conditional test specifiers as shown in Table 9.
rs
FSGLDIV
Single Precision Divide
FSGLMUL
Single Precision Multiply
FSUB
Subtract
FADD
Add
FBcc
Branch
FDBcc
Decrement and Branch
FScc
Set Byte According to Condition
FTRAPcc
Trap-on Condition (with an Optional
Parameter)
Table 9.
Floating-point Conditional Test Specifiers
Mnemonic
Definition
Note: The following conditional tests do not set the BSUN bit in the status register exception byte under any circumstances.
F
False
EQ
Equal
OGT
Ordered Greater Than
OGE
Ordered Greater Than or Equal
OLT
Ordered Less Than
OLE
Ordered Less Than or Equal
OGL
Ordered Greater or Less Than
OR
Ordered
UN
Unordered
UEQ
Unordered or Equal
UGT
Unordered or Greater Than
UGE
Unordered or Greater or Equal
ULT
Unordered or Less Than
ULE
Unordered or Less or Equal
NE
Not Equal
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS68882DESC02YA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor
TS68882DESC03XA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor
TS68882DESC03YA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor
TS68882DESC04XA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor
TS68882DESC04YA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor
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