FMOV (vector, immediate)

Floating-point move immediate (vector)

This instruction copies an immediate floating-point constant into every element of the SIMD&FP destination register.

Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

It has encodings from 2 classes: Half-precision and Single-precision and double-precision

Half-precision
(FEAT_AdvSIMD && FEAT_FP16)

Decode for this encoding

if !IsFeatureImplemented(FEAT_AdvSIMD) || !IsFeatureImplemented(FEAT_FP16) then EndOfDecode(Decode_UNDEF); end; let rd : integer = UInt(Rd); let datasize : integer{} = 64 << UInt(Q); let imm8 : bits(8) = a::b::c::d::e::f::g::h; let imm16 : bits(16) = imm8[7]::NOT(imm8[6])::Replicate{2}(imm8[6])::imm8[5:0]::Zeros{6}; let imm : bits(datasize) = Replicate{}(imm16);

Single-precision and double-precision
(FEAT_AdvSIMD)

Decode for all variants of this encoding

if !IsFeatureImplemented(FEAT_AdvSIMD) then EndOfDecode(Decode_UNDEF); end; if cmode::op == '11111' then // FMOV Dn,#imm is in main FP instruction set if Q == '0' then EndOfDecode(Decode_UNDEF); end; end; let rd : integer = UInt(Rd); let datasize : integer{} = 64 << UInt(Q); let imm64 : bits(64) = AdvSIMDExpandImm(op, cmode, a::b::c::d::e::f::g::h); let imm : bits(datasize) = Replicate{}(imm64);