Load register signed word (literal)
This instruction calculates an address from the PC value and an immediate offset, loads a word from memory, and writes it to a register. For information about addressing modes, see Load/Store addressing modes.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | imm19 | Rt | ||||||||||||||||||||||
| opc | VR | ||||||||||||||||||||||||||||||
let t : integer{} = UInt(Rt); let nontemporal : boolean = FALSE; let tagchecked : boolean = FALSE; let offset : bits(64) = SignExtend{}(imm19::'00');
| <Xt> |
Is the 64-bit name of the general-purpose register to be loaded, encoded in the "Rt" field. |
| <label> |
Is the program label from which the data is to be loaded. Its offset from the address of this instruction, in the range +/-1MB, is encoded as "imm19" times 4. |
let address : bits(64) = PC64() + offset; let privileged : boolean = PSTATE.EL != EL0; let accdesc : AccessDescriptor = CreateAccDescGPR(MemOp_LOAD, nontemporal, privileged, tagchecked, t); let data : bits(32) = Mem{32}(address, accdesc); X{64}(t) = SignExtend{64}(data);
2026-03_rel 2026-03-26 20:48:11
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