SVE Instruction List by Dougall Johnson
See "SQRDMLSH (vectors)" in the exploration tools

SQRDMLSH (vectors): Signed saturating rounding doubling multiply-subtract high from accumulator (unpredicated)

SQRDMLSH Zda.B, Zn.B, Zm.B (SVE2 (SME
svint8_t svqrdmlsh[_s8](svint8_t op1, svint8_t op2, svint8_t op3)

128-bit SVE

For each signed 8-bit integer set (4) to ( ( (1) << 7 ) − (2) * (3) + 0x40 ) >> 7, with signed saturation to 0x7F or −0x80.

256-bit SVE

For each signed 8-bit integer set (4) to ( ( (1) << 7 ) − (2) * (3) + 0x40 ) >> 7, with signed saturation to 0x7F or −0x80.

512-bit SVE

For each signed 8-bit integer set (4) to ( ( (1) << 7 ) − (2) * (3) + 0x40 ) >> 7, with signed saturation to 0x7F or −0x80.
Larger sizes

1024-bit SVE

For each signed 8-bit integer set (4) to ( ( (1) << 7 ) − (2) * (3) + 0x40 ) >> 7, with signed saturation to 0x7F or −0x80.

2048-bit SVE

For each signed 8-bit integer set (4) to ( ( (1) << 7 ) − (2) * (3) + 0x40 ) >> 7, with signed saturation to 0x7F or −0x80.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.