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

SQCVTN: Signed 32-bit integer saturating extract narrow to interleaved 16-bit integer

SQCVTN Zd.H, { Zn1.S, Zn2.S } (SVE2.1 (SME2
svint16_t svqcvtn_s16[_s32_x2](svint32x2_t zn)

128-bit SVE

Truncate each signed 32-bit integer from (1) and (2) to 16 bits, with signed saturation to 0x7FFF or −0x8000, setting the even lanes of (3) to the corresponding results from (1), and the odd lanes to the corresponding results from (2).

256-bit SVE

Truncate each signed 32-bit integer from (1) and (2) to 16 bits, with signed saturation to 0x7FFF or −0x8000, setting the even lanes of (3) to the corresponding results from (1), and the odd lanes to the corresponding results from (2).

512-bit SVE

Truncate each signed 32-bit integer from (1) and (2) to 16 bits, with signed saturation to 0x7FFF or −0x8000, setting the even lanes of (3) to the corresponding results from (1), and the odd lanes to the corresponding results from (2).

Larger sizes

1024-bit SVE

Truncate each signed 32-bit integer from (1) and (2) to 16 bits, with signed saturation to 0x7FFF or −0x8000, setting the even lanes of (3) to the corresponding results from (1), and the odd lanes to the corresponding results from (2).

2048-bit SVE

Truncate each signed 32-bit integer from (1) and (2) to 16 bits, with signed saturation to 0x7FFF or −0x8000, setting the even lanes of (3) to the corresponding results from (1), and the odd lanes to the corresponding results from (2).

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