SVE Instruction List by Dougall Johnson
SQDMULLB (vectors): Signed saturating doubling multiply long (bottom)
SQDMULLB Zd.D, Zn.S, Zm.S (SVE2 (SME
svint64_t svqdmullb[_s64](svint32_t op1, svint32_t op2)
128-bit SVE
For each even signed 32-bit integer set the double-width (3) to (1) * (2) << 1, with signed saturation to 0x7FFFFFFFFFFFFFFF.
256-bit SVE
For each even signed 32-bit integer set the double-width (3) to (1) * (2) << 1, with signed saturation to 0x7FFFFFFFFFFFFFFF.
512-bit SVE
For each even signed 32-bit integer set the double-width (3) to (1) * (2) << 1, with signed saturation to 0x7FFFFFFFFFFFFFFF.
Larger sizes
1024-bit SVE
For each even signed 32-bit integer set the double-width (3) to (1) * (2) << 1, with signed saturation to 0x7FFFFFFFFFFFFFFF.
2048-bit SVE
For each even signed 32-bit integer set the double-width (3) to (1) * (2) << 1, with signed saturation to 0x7FFFFFFFFFFFFFFF.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.