MOVA (vector to tile)

Move vector register to ZA tile slice

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 an immediate, modulo the number of such elements in a Streaming SVE vector. The immediate is in the range 0 to the number of elements in a 128-bit vector segment minus 1.

Inactive elements in the destination slice remain unmodified.

This instruction is used by the alias MOV (vector to tile).

It has encodings from 5 classes: 8-bit , 16-bit , 32-bit , 64-bit and 128-bit

8-bit
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
1100000000000000VRsPgZn0imm4
size<1>size<0>Q

MOVA ZA0<HV>.B[<Ws>, <imm>], <Pg>/M, <Zn>.B

if !HaveSME() then UNDEFINED; integer g = UInt(Pg); integer s = UInt('011':Rs); integer n = UInt(Zn); integer d = 0; integer imm = UInt(imm4); integer esize = 8; boolean vertical = V == '1';

16-bit
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
1100000001000000VRsPgZn0ZAdimm3
size<1>size<0>Q

MOVA <ZAd><HV>.H[<Ws>, <imm>], <Pg>/M, <Zn>.H

if !HaveSME() then UNDEFINED; integer g = UInt(Pg); integer s = UInt('011':Rs); integer n = UInt(Zn); integer d = UInt(ZAd); integer imm = UInt(imm3); integer esize = 16; boolean vertical = V == '1';

32-bit
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
1100000010000000VRsPgZn0ZAdimm2
size<1>size<0>Q

MOVA <ZAd><HV>.S[<Ws>, <imm>], <Pg>/M, <Zn>.S

if !HaveSME() then UNDEFINED; integer g = UInt(Pg); integer s = UInt('011':Rs); integer n = UInt(Zn); integer d = UInt(ZAd); integer imm = UInt(imm2); integer esize = 32; boolean vertical = V == '1';

64-bit
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
1100000011000000VRsPgZn0ZAdi1
size<1>size<0>Q

MOVA <ZAd><HV>.D[<Ws>, <imm>], <Pg>/M, <Zn>.D

if !HaveSME() then UNDEFINED; integer g = UInt(Pg); integer s = UInt('011':Rs); integer n = UInt(Zn); integer d = UInt(ZAd); integer imm = UInt(i1); integer esize = 64; boolean vertical = V == '1';

128-bit
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
1100000011000001VRsPgZn0ZAd
size<1>size<0>Q

MOVA <ZAd><HV>.Q[<Ws>, <imm>], <Pg>/M, <Zn>.Q

if !HaveSME() then UNDEFINED; integer g = UInt(Pg); integer s = UInt('011':Rs); integer n = UInt(Zn); integer d = UInt(ZAd); integer imm = 0; integer esize = 128; boolean vertical = V == '1';

Assembler Symbols

<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.

<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.

<imm>

For the 8-bit variant: is the slice index offset, in the range 0 to 15, encoded in the "imm4" field.

For the 16-bit variant: is the slice index offset, in the range 0 to 7, encoded in the "imm3" field.

For the 32-bit variant: is the slice index offset, in the range 0 to 3, encoded in the "imm2" field.

For the 64-bit variant: is the slice index offset, in the range 0 to 1, encoded in the "i1" field.

For the 128-bit variant: is the slice index offset 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.

Operation

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

Operational information

If FEAT_SVE2 is enabled or FEAT_SME is enabled, then when PSTATE.DIT is 1:


Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

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