SVE Instruction List by Dougall Johnson
SQSHRNB: Signed saturating shift right narrow by immediate (bottom)
SQSHRNB Zd.S, Zn.D, #const (SVE2 (SME
svint32_t svqshrnb[_n_s64](svint64_t op1, uint64_t imm2)
128-bit SVE
For each signed 64-bit integer set the even 32-bit elements of (2) to (1) >> const, truncating with signed saturation to 0x7FFFFFFF or −0x80000000, and zero odd elements. The shift amount is limited to 1 ≤ const ≤ 32.
256-bit SVE
For each signed 64-bit integer set the even 32-bit elements of (2) to (1) >> const, truncating with signed saturation to 0x7FFFFFFF or −0x80000000, and zero odd elements. The shift amount is limited to 1 ≤ const ≤ 32.
512-bit SVE
For each signed 64-bit integer set the even 32-bit elements of (2) to (1) >> const, truncating with signed saturation to 0x7FFFFFFF or −0x80000000, and zero odd elements. The shift amount is limited to 1 ≤ const ≤ 32.
Larger sizes
1024-bit SVE
For each signed 64-bit integer set the even 32-bit elements of (2) to (1) >> const, truncating with signed saturation to 0x7FFFFFFF or −0x80000000, and zero odd elements. The shift amount is limited to 1 ≤ const ≤ 32.
2048-bit SVE
For each signed 64-bit integer set the even 32-bit elements of (2) to (1) >> const, truncating with signed saturation to 0x7FFFFFFF or −0x80000000, and zero odd elements. The shift amount is limited to 1 ≤ const ≤ 32.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.