CPY (immediate, zeroing)

Copy signed integer immediate to vector elements (zeroing)

This instruction copies a signed integer immediate to each Active element in the destination vector. Inactive elements in the destination vector register are set to zero.

The immediate operand is a signed value in the range -128 to +127, and for element widths of 16 bits or higher it may also be a signed multiple of 256 in the range -32768 to +32512 (excluding 0).

The immediate is encoded in 8 bits with an optional left shift by 8. The preferred disassembly when the shift option is specified is "#<imm>, LSL #8". However an assembler and disassembler may also allow use of the shifted 16-bit value unless the immediate is 0 and the shift amount is 8, which must be unambiguously described as "#0, LSL #8".

This instruction is used by the alias MOV (immediate, zeroing).

SVE
(FEAT_SVE || FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; if size::sh == '001' then EndOfDecode(Decode_UNDEF); end; let esize : integer{} = 8 << UInt(size); let g : integer = UInt(Pg); let d : integer = UInt(Zd); let merging : boolean = FALSE; var imm : integer = SInt(imm8); if sh == '1' then imm = imm << 8; end;