Duplicate general-purpose register to vector. This instruction duplicates the contents of the source general-purpose register into a scalar or each element in a vector, and writes the result to the SIMD&FP destination register.
Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.
| 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 |
| 0 | Q | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | imm5 | 0 | 0 | 0 | 0 | 1 | 1 | Rn | Rd | ||||||||||||
integer d = UInt(Rd); integer n = UInt(Rn); integer size = LowestSetBit(imm5); if size > 3 then UNDEFINED; // imm5<4:size+1> is IGNORED if size == 3 && Q == '0' then UNDEFINED; integer esize = 8 << size; integer datasize = if Q == '1' then 128 else 64; integer elements = datasize DIV esize;
| <Vd> |
Is the name of the SIMD&FP destination register, encoded in the "Rd" field. |
| <T> |
Is an arrangement specifier,
encoded in
|
| <n> |
Is the number [0-30] of the general-purpose source register or ZR (31), encoded in the "Rn" field. |
CheckFPAdvSIMDEnabled64(); bits(esize) element = X[n]; bits(datasize) result; for e = 0 to elements-1 Elem[result, e, esize] = element; V[d] = result;
If PSTATE.DIT is 1:
Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41
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