SVE Instruction List by Dougall Johnson
See "UHADD" in the exploration tools

UHADD: Unsigned halving addition

UHADD Zdn.S, Pg/M, Zdn.S, Zm.S (SVE2 (SME
svuint32_t svhadd[_u32]_m(svbool_t pg, svuint32_t op1, svuint32_t op2)

128-bit SVE

For each unsigned 32-bit integer set (3) to ( (1) + (2) ) >> 1.

256-bit SVE

For each unsigned 32-bit integer set (3) to ( (1) + (2) ) >> 1.

512-bit SVE

For each unsigned 32-bit integer set (3) to ( (1) + (2) ) >> 1.
Larger sizes

1024-bit SVE

For each unsigned 32-bit integer set (3) to ( (1) + (2) ) >> 1.

2048-bit SVE

For each unsigned 32-bit integer set (3) to ( (1) + (2) ) >> 1.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.