ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

Contains an address offset applied after the access.
Instruction Details
For more information about , !, and , see Advanced SIMD addressing mode on page A7-30.
Alignment
Standard alignment rules apply, see Unaligned data access on page A3-5.
The a bit must be encoded as 0.
Operation
if ConditionPassed() then
EncodingSpecificOperations(); CheckAdvSIMDEnabled(); NullCheckIfThumbEE(n);
address = R[n];
if wback then R[n] = R[n] + (if register_index then R[m] else 3*ebytes);
D[d] = Replicate(MemU[address,ebytes], elements);
D[d2] = Replicate(MemU[address+ebytes,ebytes], elements);
D[d3] = Replicate(MemU[address+2*ebytes,ebytes], elements);
Exceptions
Undefined Instruction, Data Abort.
ARM DDI 0406B Copyright © 1996-1998, 2000, 2004-2008 ARM Limited. All rights reserved. A8-619