MOVA (vector to tile, single) -- A64

The 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); constant integer g = UInt(Pg); constant integer s = UInt('011':Rs); constant integer n = UInt(Zn); constant integer d = 0; constant integer offset = UInt(off4); constant integer esize = 8; constant boolean vertical = V == '1';

16-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); constant integer g = UInt(Pg); constant integer s = UInt('011':Rs); constant integer n = UInt(Zn); constant integer d = UInt(ZAd); constant integer offset = UInt(off3); constant integer esize = 16; constant boolean vertical = V == '1';

32-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); constant integer g = UInt(Pg); constant integer s = UInt('011':Rs); constant integer n = UInt(Zn); constant integer d = UInt(ZAd); constant integer offset = UInt(off2); constant integer esize = 32; constant boolean vertical = V == '1';

64-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); constant integer g = UInt(Pg); constant integer s = UInt('011':Rs); constant integer n = UInt(Zn); constant integer d = UInt(ZAd); constant integer offset = UInt(o1); constant integer esize = 64; constant boolean vertical = V == '1';

128-bit
(FEAT_SME)

Decode for this encoding

if !IsFeatureImplemented(FEAT_SME) then EndOfDecode(Decode_UNDEF); constant integer g = UInt(Pg); constant integer s = UInt('011':Rs); constant integer n = UInt(Zn); constant integer d = UInt(ZAd); constant integer offset = 0; constant integer esize = 128; constant boolean vertical = V == '1';

Assembler Symbols

<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.

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

<Zn>	Is the name of the source scalable vector register, encoded in the "Zn" field.

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

Operation

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

Operational information

If PSTATE.DIT is 1:

The execution time of this instruction is independent of:
- The values of the data supplied in any of its operand registers when its governing predicate register contains the same value for each execution.
- The values of the NZCV flags.
The response of this instruction to asynchronous exceptions does not vary based on:
- The values of the data supplied in any of its operand registers when its governing predicate register contains the same value for each execution.
- The values of the NZCV flags.

Internal version only: aarchmrs v2024-12_rel, pseudocode v2024-12_rel ; Build timestamp: 2024-12-15T22:18