參數(shù)資料
型號: EFM32-TG-STK3300
廠商: Energy Micro
文件頁數(shù): 89/136頁
文件大?。?/td> 0K
描述: KIT STARTER EFM32 GECKO
特色產(chǎn)品: EFM32 Tiny Gecko
標準包裝: 1
系列: EFM®32
類型: MCU
適用于相關(guān)產(chǎn)品: EFM32-TGXXX
所含物品: 板,線纜,CD 和文檔
其它名稱: 914-1018
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
56
www.energymicro.com
3.4.9 CLREX
Clear Exclusive.
3.4.9.1 Syntax
CLREX{cond}
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
3.4.9.2 Operation
Use CLREX to make the next STREX, STREXB, or STREXH instruction write 1 to its destination register and
fail to perform the store. It is useful in exception handler code to force the failure of the store exclusive if
the exception occurs between a load exclusive instruction and the matching store exclusive instruction
in a synchronization operation.
See Section 2.2.7 (p. 20) for more information.
3.4.9.3 Condition flags
These instructions do not change the flags.
3.4.9.4 Examples
CLREX
3.5 General data processing instructions
Table 3.8 (p. 56) shows the data processing instructions:
Table 3.8. Data processing instructions
Mnemonic
Brief description
See
ADC
Add with Carry
ADD
Add
ADDW
Add
AND
Logical AND
ASR
Arithmetic Shift Right
BIC
Bit Clear
CLZ
Count leading zeros
CMN
Compare Negative
CMP
Compare
EOR
Exclusive OR
LSL
Logical Shift Left
LSR
Logical Shift Right
MOV
Move
MOVT
Move Top
MOVW
Move 16-bit constant
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