SVE Instruction List by Dougall Johnson
See "UQDECP (scalar)" in the exploration tools

UQDECP (scalar): Unsigned saturating decrement scalar by count of true predicate elements

UQDECP Wdn, Pm.D (SVE (SME
uint32_t svqdecp[_n_u32]_b64(uint32_t op, svbool_t pg)

128-bit SVE

Considering only predicate bits from (1) corresponding to 64-bit elements, set (3) to (2) − popcount( (1) ), with unsigned saturation to zero.

256-bit SVE

Considering only predicate bits from (1) corresponding to 64-bit elements, set (3) to (2) − popcount( (1) ), with unsigned saturation to zero.

512-bit SVE

Considering only predicate bits from (1) corresponding to 64-bit elements, set (3) to (2) − popcount( (1) ), with unsigned saturation to zero.

Larger sizes

1024-bit SVE

Considering only predicate bits from (1) corresponding to 64-bit elements, set (3) to (2) − popcount( (1) ), with unsigned saturation to zero.

2048-bit SVE

Considering only predicate bits from (1) corresponding to 64-bit elements, set (3) to (2) − popcount( (1) ), with unsigned saturation to zero.

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