MOVA (tile to vector, single) -- A64

This instruction operates on individual horizontal or vertical slices within a named ZA tile of the specified element size. The slice number within the tile is selected by the sum of the slice index register and immediate offset, modulo the number of such elements in a vector. The immediate offset is in the range 0 to the number of elements in a 128-bit vector segment minus 1.

8-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let g : integer = UInt(Pg); let s : integer = UInt('011'::Rs); let n : integer = 0; let offset : integer = UInt(off4); let esize : integer{} = 8; let d : integer = UInt(Zd); let vertical : boolean = V == '1';

16-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let g : integer = UInt(Pg); let s : integer = UInt('011'::Rs); let n : integer = UInt(ZAn); let offset : integer = UInt(off3); let esize : integer{} = 16; let d : integer = UInt(Zd); let vertical : boolean = V == '1';

32-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let g : integer = UInt(Pg); let s : integer = UInt('011'::Rs); let n : integer = UInt(ZAn); let offset : integer = UInt(off2); let esize : integer{} = 32; let d : integer = UInt(Zd); let vertical : boolean = V == '1';

64-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let g : integer = UInt(Pg); let s : integer = UInt('011'::Rs); let n : integer = UInt(ZAn); let offset : integer = UInt(o1); let esize : integer{} = 64; let d : integer = UInt(Zd); let vertical : boolean = V == '1';

128-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); end; let g : integer = UInt(Pg); let s : integer = UInt('011'::Rs); let n : integer = UInt(ZAn); let offset : integer = 0; let esize : integer{} = 128; let d : integer = UInt(Zd); let vertical : boolean = V == '1';

Assembler Symbols

<Zd>	Is the name of the destination scalable vector register, encoded in the "Zd" field.

<Pg>	Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field.

<HV>

Is the horizontal or vertical slice indicator, encoded in V:

V	<HV>
0	H
1	V

<Ws>	Is the 32-bit name of the slice index register W12-W15, encoded in the "Rs" field.

<offs>	For the "8-bit" variant: is the slice index offset, in the range 0 to 15, encoded in the "off4" field.
	For the "16-bit" variant: is the slice index offset, in the range 0 to 7, encoded in the "off3" field.
	For the "32-bit" variant: is the slice index offset, in the range 0 to 3, encoded in the "off2" field.
	For the "64-bit" variant: is the slice index offset, in the range 0 to 1, encoded in the "o1" field.
	For the "128-bit" variant: is the slice index offset, with implicit value 0.

<ZAn>	For the "16-bit" variant: is the name of the ZA tile ZA0-ZA1 to be accessed, encoded in the "ZAn" field.
	For the "32-bit" variant: is the name of the ZA tile ZA0-ZA3 to be accessed, encoded in the "ZAn" field.
	For the "64-bit" variant: is the name of the ZA tile ZA0-ZA7 to be accessed, encoded in the "ZAn" field.
	For the "128-bit" variant: is the name of the ZA tile ZA0-ZA15 to be accessed, encoded in the "ZAn" field.

Operation

CheckStreamingSVEAndZAEnabled(); let VL : integer{} = CurrentVL(); let PL : integer{} = VL DIV 8; let dim : integer = VL DIV esize; let mask : bits(PL) = P{}(g); let index : bits(32) = X{}(s); let slice : integer = (UInt(index) + offset) MOD dim; let operand : bits(VL) = ZAslice{}(n, esize, vertical, slice); var result : bits(VL) = Z{}(d); for e = 0 to dim-1 do let element : bits(esize) = operand[e*:esize]; if ActivePredicateElement{PL}(mask, e, esize) then result[e*:esize] = element; end; end; Z{VL}(d) = result;

Operational information

This instruction is a data-independent-time instruction as described in About PSTATE.DIT.

2025-12_rel 2025-12-10 16:41:45

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1	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0	V	Rs		Pg			0	off4				Zd
								size							Q

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
1	1	0	0	0	0	0	0	1	1	0	0	0	0	1	1	V	Rs		Pg			0	ZAn				Zd
								size							Q