SVE Instruction List by Dougall Johnson
See "FCVTZS" in the exploration tools

FCVTZS: Floating-point convert to signed integer, rounding toward zero (predicated)

FCVTZS Zd.D, Pg/M, Zn.S (SVE (SME
svint64_t svcvt_s64[_f32]_m(svint64_t inactive, svbool_t pg, svfloat32_t op)

128-bit SVE

Convert each 32-bit floating point value from the even lanes of (1) to a signed 64-bit integer, rounding towards zero, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000, writing the results to the corresponding 64-bit elements of (2).

256-bit SVE

Convert each 32-bit floating point value from the even lanes of (1) to a signed 64-bit integer, rounding towards zero, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000, writing the results to the corresponding 64-bit elements of (2).

512-bit SVE

Convert each 32-bit floating point value from the even lanes of (1) to a signed 64-bit integer, rounding towards zero, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000, writing the results to the corresponding 64-bit elements of (2).

Larger sizes

1024-bit SVE

Convert each 32-bit floating point value from the even lanes of (1) to a signed 64-bit integer, rounding towards zero, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000, writing the results to the corresponding 64-bit elements of (2).

2048-bit SVE

Convert each 32-bit floating point value from the even lanes of (1) to a signed 64-bit integer, rounding towards zero, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000, writing the results to the corresponding 64-bit elements of (2).

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