SVE Instruction List by Dougall Johnson
LASTB (scalar): Extract last element to general-purpose register
LASTB Wd, Pg, Zn.B (SVE (SME
int8_t svlastb[_s8](svbool_t pg, svint8_t op)
uint8_t svlastb[_u8](svbool_t pg, svuint8_t op)
128-bit SVE
Set (3) to the last (leftmost) 8-bit element from (2) where the corresponding predicate bit in (1) is non-zero. If there are no such elements, set (3) to the last (leftmost) element from (1).
256-bit SVE
Set (3) to the last (leftmost) 8-bit element from (2) where the corresponding predicate bit in (1) is non-zero. If there are no such elements, set (3) to the last (leftmost) element from (1).
512-bit SVE
Set (3) to the last (leftmost) 8-bit element from (2) where the corresponding predicate bit in (1) is non-zero. If there are no such elements, set (3) to the last (leftmost) element from (1).
Larger sizes
1024-bit SVE
Set (3) to the last (leftmost) 8-bit element from (2) where the corresponding predicate bit in (1) is non-zero. If there are no such elements, set (3) to the last (leftmost) element from (1).
2048-bit SVE
Set (3) to the last (leftmost) 8-bit element from (2) where the corresponding predicate bit in (1) is non-zero. If there are no such elements, set (3) to the last (leftmost) element from (1).
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.