SAM3N00A Atmel Corporation, SAM3N00A Datasheet - Page 88
SAM3N00A
Manufacturer Part Number
SAM3N00A
Description
Manufacturer
Atmel Corporation
- Current page: 88 of 752
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10.12.1
10.12.1.1
10.12.1.2
10.12.1.3
10.12.1.4
10.12.1.5
88
ADR
SAM3N
ADR
Syntax
Operation
Restrictions
Condition flags
Examples
R1, TextMessage
Load PC-relative address.
where:
cond
Rd
label
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.
You might have to use the .W suffix to get the maximum offset range or to generate addresses
that are not word-aligned. See
Rd must not be SP and must not be PC.
This instruction does not change the flags.
ADR{cond} Rd, label
is an optional condition code, see
is the destination register.
is a PC-relative expression. See
; Write address value of a location labelled as
; TextMessage to R1
“Instruction width selection” on page
“PC-relative expressions” on page
“Conditional execution” on page
86.
11011A–ATARM–04-Oct-10
84.
84.
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