MOV (to/from SP)

Move register value to or from SP

This instruction copies the value of a register to or from the stack pointer.

This is an alias of ADD (immediate). This means:

313029282726252423222120191817161514131211109876543210
sf001000100000000000000RnRd
opSshimm12

Encoding for the 32-bit variant

Applies when (sf == 0)

MOV <Wd|WSP>, <Wn|WSP>

is equivalent to

ADD <Wd|WSP>, <Wn|WSP>, #0

and is the preferred disassembly when Rd == '11111' || Rn == '11111'.

Encoding for the 64-bit variant

Applies when (sf == 1)

MOV <Xd|SP>, <Xn|SP>

is equivalent to

ADD <Xd|SP>, <Xn|SP>, #0

and is the preferred disassembly when Rd == '11111' || Rn == '11111'.

Assembler Symbols

<Wd|WSP>

Is the 32-bit name of the destination general-purpose register or stack pointer, encoded in the "Rd" field.

<Wn|WSP>

Is the 32-bit name of the source general-purpose register or stack pointer, encoded in the "Rn" field.

<Xd|SP>

Is the 64-bit name of the destination general-purpose register or stack pointer, encoded in the "Rd" field.

<Xn|SP>

Is the 64-bit name of the source general-purpose register or stack pointer, encoded in the "Rn" field.

Operation

The description of ADD (immediate) gives the operational pseudocode for this instruction.

Operational Information

The description of ADD (immediate) gives the operational information for this instruction.


2026-03_rel 2026-03-26 20:48:11

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