SVE Instruction List by Dougall Johnson
SUBHNB: Subtract narrow high part (bottom)
SUBHNB Zd.S, Zn.D, Zm.D (SVE2 (SME
svint32_t svsubhnb[_s64](svint64_t op1, svint64_t op2)
svuint32_t svsubhnb[_u64](svuint64_t op1, svuint64_t op2)
128-bit SVE
For each 64-bit integer set the even 32-bit elements of (3) to ( (1) − (2) ) >> 32, and zero odd elements.
256-bit SVE
For each 64-bit integer set the even 32-bit elements of (3) to ( (1) − (2) ) >> 32, and zero odd elements.
512-bit SVE
For each 64-bit integer set the even 32-bit elements of (3) to ( (1) − (2) ) >> 32, and zero odd elements.
Larger sizes
1024-bit SVE
For each 64-bit integer set the even 32-bit elements of (3) to ( (1) − (2) ) >> 32, and zero odd elements.
2048-bit SVE
For each 64-bit integer set the even 32-bit elements of (3) to ( (1) − (2) ) >> 32, and zero odd elements.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.