See "BFMLSLB (indexed)" in the exploration tools

BFMLSLB (indexed): BFloat16 floating-point multiply-subtract long from single-precision (bottom, indexed)

BFMLSLB Zda.S, Zn.H, Zm.H[imm] (SVE2.1 (SME2

128-bit SVE

Multiply each even BFloat16 from (2), with the BFloat16 specified by imm from (1), then subtract this from the 32-bit float from (3), and set (4) to the result.

256-bit SVE

Multiply each even BFloat16 from (2), with the BFloat16 specified by imm from (1), then subtract this from the 32-bit float from (3), and set (4) to the result.

512-bit SVE

Multiply each even BFloat16 from (2), with the BFloat16 specified by imm from (1), then subtract this from the 32-bit float from (3), and set (4) to the result.

Larger sizes

1024-bit SVE

Multiply each even BFloat16 from (2), with the BFloat16 specified by imm from (1), then subtract this from the 32-bit float from (3), and set (4) to the result.

2048-bit SVE

Multiply each even BFloat16 from (2), with the BFloat16 specified by imm from (1), then subtract this from the 32-bit float from (3), and set (4) to the result.

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