Unsigned integer convert to floating-point (top, unpredicated)
This instruction converts each odd-numbered unsigned integer element of the source vector to floating-point, and places the results in the overlapping double-width elements of the destination vector.
This instruction is unpredicated.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | size | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | Zn | Zd | |||||||||
| U | |||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_SVE2p3) && !IsFeatureImplemented(FEAT_SME2p3) then EndOfDecode(Decode_UNDEF); end; if size == '00' then EndOfDecode(Decode_UNDEF); end; let esize : integer{} = 8 << UInt(size); let n : integer = UInt(Zn); let d : integer = UInt(Zd); let unsigned : boolean = TRUE; let rounding : FPRounding = FPRoundingMode(FPCR());
| <Zd> |
Is the name of the destination scalable vector register, encoded in the "Zd" field. |
| <T> |
Is the size specifier,
encoded in
|
| <Zn> |
Is the name of the source scalable vector register, encoded in the "Zn" field. |
| <Tb> |
Is the size specifier,
encoded in
|
CheckSVEEnabled(); let VL : integer{} = CurrentVL(); let elements : integer = VL DIV esize; let operand : bits(VL) = Z{}(n); var result : bits(VL); for e = 0 to elements-1 do let element : bits(esize DIV 2) = operand[(2*e + 1)*:(esize DIV 2)]; result[e*:esize] = FixedToFP{esize, esize DIV 2}(element, 0, unsigned, FPCR(), rounding); end; Z{VL}(d) = result;
2025-12_rel 2025-12-10 16:41:45
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