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ADRP -- A64

ADRP

Form PC-relative address to 4KB page

This instruction adds an immediate value that is shifted left by 12 bits, to the PC value to form a PC-relative address, with the bottom 12 bits masked out, and writes the result to the destination register.

313029282726252423222120191817161514131211109876543210
1immlo10000immhiRd
op

Encoding

ADRP <Xd>, <label>

Decode for this encoding

let d : integer{} = UInt(Rd); let imm : bits(64) = SignExtend{}(immhi::immlo::Zeros{12});

Assembler Symbols

<Xd>

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

<label>

Is the program label whose 4KB page address is to be calculated. Its offset from the page address of this instruction, in the range +/-4GB, is encoded as "immhi:immlo" times 4096.

Operation

let base : bits(64) = PC64()[63:12]::Zeros{12}; X{64}(d) = base + imm;


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

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