Ldr, Pc-Relative - ST STM32F0 Series Programming Manual

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PM0215
3.4.4

LDR, PC-relative

Load register (literal) from memory.
Syntax
LDR Rt, label
where:
'Rt' is the register to load or store
'label' is a PC-relative expression (see
Operation
Loads the register specified by Rt from the word in memory specified by label.
Restrictions
In these instructions:In these instructions, label must be within 1020 bytes of the current PC
and word aligned.
Condition flags
These instructions do not change the flags.
Examples
LDR
R0, LookUpTable
LDR
R3, [PC, #100]
PC-relative expressions on page
; Load R0 with a word of data from an address
; labelled as LookUpTable.
; Load R3 with memory word at (PC + 100).
Doc ID 022979 Rev 1
The STM32 Cortex-M0 instruction set
39)
45/91

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