SVE Instruction List by Dougall Johnson
See "ST1B (scalar plus immediate, consecutive registers)" in the exploration tools

ST1B (scalar plus immediate, consecutive registers): Contiguous store of bytes from multiple consecutive vectors (immediate index)

ST1B { Zt1.B, Zt2.B, Zt3.B, Zt4.B }, PNg, [Xn{, #imm, MUL VL}] (SVE2.1 (SME2+S

128-bit SVE

Store 8-bit values from the four consecutive registers (2), (3), (4), and (5) to the memory operand (6). After decoding the predicate (1) from its predicate-as-counter representation to a quadruple-length predicate, if the predicate bit corresponding to an element is zero, that store is skipped, and cannot cause a fault, and the corresponding value in memory is unchanged. The first register number (2) must be divisible by four.

256-bit SVE

Store 8-bit values from the four consecutive registers (2), (3), (4), and (5) to the memory operand (6). After decoding the predicate (1) from its predicate-as-counter representation to a quadruple-length predicate, if the predicate bit corresponding to an element is zero, that store is skipped, and cannot cause a fault, and the corresponding value in memory is unchanged. The first register number (2) must be divisible by four.

512-bit SVE

Store 8-bit values from the four consecutive registers (2), (3), (4), and (5) to the memory operand (6). After decoding the predicate (1) from its predicate-as-counter representation to a quadruple-length predicate, if the predicate bit corresponding to an element is zero, that store is skipped, and cannot cause a fault, and the corresponding value in memory is unchanged. The first register number (2) must be divisible by four.

Larger sizes

1024-bit SVE

Store 8-bit values from the four consecutive registers (2), (3), (4), and (5) to the memory operand (6). After decoding the predicate (1) from its predicate-as-counter representation to a quadruple-length predicate, if the predicate bit corresponding to an element is zero, that store is skipped, and cannot cause a fault, and the corresponding value in memory is unchanged. The first register number (2) must be divisible by four.

2048-bit SVE

Store 8-bit values from the four consecutive registers (2), (3), (4), and (5) to the memory operand (6). After decoding the predicate (1) from its predicate-as-counter representation to a quadruple-length predicate, if the predicate bit corresponding to an element is zero, that store is skipped, and cannot cause a fault, and the corresponding value in memory is unchanged. The first register number (2) must be divisible by four.

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