SVE Instruction List by Dougall Johnson
UXTB, UXTH, UXTW: Unsigned byte / halfword / word extend (predicated)
UXTB Zd.S, Pg/Z, Zn.S (SVE2.2 (SME2.2
128-bit SVE

For each 32-bit value integer set (2) to ( (1) & 0xFF ). This takes the low 8-bits of (1), and zero-extends it to 32-bit.
256-bit SVE

For each 32-bit value integer set (2) to ( (1) & 0xFF ). This takes the low 8-bits of (1), and zero-extends it to 32-bit.
512-bit SVE

For each 32-bit value integer set (2) to ( (1) & 0xFF ). This takes the low 8-bits of (1), and zero-extends it to 32-bit.
Larger sizes
1024-bit SVE

For each 32-bit value integer set (2) to ( (1) & 0xFF ). This takes the low 8-bits of (1), and zero-extends it to 32-bit.
2048-bit SVE

For each 32-bit value integer set (2) to ( (1) & 0xFF ). This takes the low 8-bits of (1), and zero-extends it to 32-bit.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.