TBL: Programmable table lookup in one or two vector table (zeroing)

TBL Zd.S, { Zn1.S, Zn2.S }, Zm.S (SVE2 (SME

svfloat32_t svtbl2[_f32](svfloat32x2_t data, svuint32_t indices)

svint32_t svtbl2[_s32](svint32x2_t data, svuint32_t indices)

svuint32_t svtbl2[_u32](svuint32x2_t data, svuint32_t indices)

128-bit SVE

For each 32-bit index from (2), if 0 ≤ index < 8, set (3) to the 32-bit element at that index in the two-register table (1), otherwise set (3) to zero.

256-bit SVE

For each 32-bit index from (2), if 0 ≤ index < 16, set (3) to the 32-bit element at that index in the two-register table (1), otherwise set (3) to zero.

512-bit SVE

For each 32-bit index from (2), if 0 ≤ index < 32, set (3) to the 32-bit element at that index in the two-register table (1), otherwise set (3) to zero.

Larger sizes

1024-bit SVE

For each 32-bit index from (2), if 0 ≤ index < 64, set (3) to the 32-bit element at that index in the two-register table (1), otherwise set (3) to zero.

2048-bit SVE

For each 32-bit index from (2), if 0 ≤ index < 128, set (3) to the 32-bit element at that index in the two-register table (1), otherwise set (3) to zero.

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