SVE Instruction List by Dougall Johnson
See "ST3Q (scalar plus scalar)" in the exploration tools

ST3Q (scalar plus scalar): Contiguous store three-quadword structures from three vectors (scalar index)

ST3Q { Zt1.Q, Zt2.Q, Zt3.Q }, Pg, [Xn, Xm, LSL #4] (SVE2.1 (SME2.1

128-bit SVE

Interleave 128-bit elements from three consecutive registers (2), (3), and (4), and store them to the memory operand (5). If the predicate bit from (1) corresponding to an element in (2), (3), and (4) is zero, those three contiguous stores are skipped, and cannot cause a fault, and the corresponding values in memory are unchanged.

256-bit SVE

Interleave 128-bit elements from three consecutive registers (2), (3), and (4), and store them to the memory operand (5). If the predicate bit from (1) corresponding to an element in (2), (3), and (4) is zero, those three contiguous stores are skipped, and cannot cause a fault, and the corresponding values in memory are unchanged.

512-bit SVE

Interleave 128-bit elements from three consecutive registers (2), (3), and (4), and store them to the memory operand (5). If the predicate bit from (1) corresponding to an element in (2), (3), and (4) is zero, those three contiguous stores are skipped, and cannot cause a fault, and the corresponding values in memory are unchanged.

Larger sizes

1024-bit SVE

Interleave 128-bit elements from three consecutive registers (2), (3), and (4), and store them to the memory operand (5). If the predicate bit from (1) corresponding to an element in (2), (3), and (4) is zero, those three contiguous stores are skipped, and cannot cause a fault, and the corresponding values in memory are unchanged.

2048-bit SVE

Interleave 128-bit elements from three consecutive registers (2), (3), and (4), and store them to the memory operand (5). If the predicate bit from (1) corresponding to an element in (2), (3), and (4) is zero, those three contiguous stores are skipped, and cannot cause a fault, and the corresponding values in memory are unchanged.

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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.