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Load immediates into registers
Load immediate values using MOV and MVN
Load 32-bit values to a register using MOV32
Load immediate 32-bit values to a register using L
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Load addresses to a register using ADR
Load addresses to a register using ADRL
Load addresses to a register using LDR Rd, =label
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Assembler User Guide
Load 32-bit values to a register using MOV32
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| Home > Writing ARM Assembly Language > Load 32-bit values to a register using MOV32 | |||
In ARMv6T2 and later, both ARM and Thumb instruction sets include:
a
MOVinstruction that can load any value in the range0x00000000to0x0000FFFFinto a registera
MOVTinstruction that can load any value in the range0x0000to0xFFFFinto the most significant half of a register, without altering the contents of the least significant half.
You can use these two instructions to construct any 32-bit
immediate value in a register. Alternatively, you can use the MOV32 pseudo-instruction.
The assembler generates the MOV, MOVT instruction
pair for you.
You can also use the MOV32 instruction to load
addresses into registers by using a label or any PC-relative expression
in place of an immediate value. The assembler puts a relocation
directive into the object file for the linker to resolve the address
at link-time.
See also- Concepts
- Reference
Assembler Reference:
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0379D |
| Non-Confidential | ID062912 |
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| Home > Writing ARM Assembly Language > Load 32-bit values to a register using MOV32 |
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