参数资料
型号: EFM32-TG-STK3300
厂商: Energy Micro
文件页数: 78/136页
文件大小: 0K
描述: KIT STARTER EFM32 GECKO
特色产品: EFM32 Tiny Gecko
标准包装: 1
系列: EFM®32
类型: MCU
适用于相关产品: EFM32-TGXXX
所含物品: 板,线缆,CD 和文档
其它名称: 914-1018
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
46
www.energymicro.com
Mnemonic
Brief description
See
STR{type}
Store Register using register offset
STR{type}T
Store Register with unprivileged access
STREX{type}
Store Register Exclusive
3.4.1 ADR
Load PC-relative address.
3.4.1.1 Syntax
ADR{cond} Rd, label
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
Rd
is the destination register.
label
is a PC#relative expression. See Section 3.3.6 (p. 42) .
3.4.1.2 Operation
ADR
determines the address by adding an immediate value to the PC, and writes the result to the
destination register.
ADR
produces position#independent code, because the address is PC#relative.
If you use ADR to generate a target address for a BX or BLX instruction, you must ensure that bit[0] of
the address you generate is set to1 for correct execution.
Values of label must be within the range of #4095 to +4095 from the address in the PC.
Note
You might have to use the .W suffix to get the maximum offset range or to generate
addresses that are not word-aligned. See Section 3.3.8 (p. 45) .
3.4.1.3 Restrictions
Rd
must not be SP and must not be PC.
3.4.1.4 Condition flags
This instruction does not change the flags.
3.4.1.5 Examples
ADR
R1, TextMessage
; Write address value of a location labelled as
; TextMessage to R1
3.4.2 LDR and STR, immediate offset
Load and Store with immediate offset, pre-indexed immediate offset, or post-indexed immediate offset.
3.4.2.1 Syntax
op{type}{cond} Rt, [Rn {, #offset}]
; immediate offset
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